3 * Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
4 * 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
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.
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.
17 * [p.945 of _The Lord of the Rings_, VI/iii: "Mount Doom"]
20 /* This file contains system pp ("push/pop") functions that
21 * execute the opcodes that make up a perl program. A typical pp function
22 * expects to find its arguments on the stack, and usually pushes its
23 * results onto the stack, hence the 'pp' terminology. Each OP structure
24 * contains a pointer to the relevant pp_foo() function.
26 * By 'system', we mean ops which interact with the OS, such as pp_open().
30 #define PERL_IN_PP_SYS_C
35 /* Shadow password support for solaris - pdo@cs.umd.edu
36 * Not just Solaris: at least HP-UX, IRIX, Linux.
37 * The API is from SysV.
39 * There are at least two more shadow interfaces,
40 * see the comments in pp_gpwent().
44 /* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
45 * and another MAXINT from "perl.h" <- <sys/param.h>. */
52 # include <sys/resource.h>
61 # include <sys/select.h>
65 /* XXX Configure test needed.
66 h_errno might not be a simple 'int', especially for multi-threaded
67 applications, see "extern int errno in perl.h". Creating such
68 a test requires taking into account the differences between
69 compiling multithreaded and singlethreaded ($ccflags et al).
70 HOST_NOT_FOUND is typically defined in <netdb.h>.
72 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
81 struct passwd *getpwnam (char *);
82 struct passwd *getpwuid (Uid_t);
87 struct passwd *getpwent (void);
88 #elif defined (VMS) && defined (my_getpwent)
89 struct passwd *Perl_my_getpwent (pTHX);
98 struct group *getgrnam (char *);
99 struct group *getgrgid (Gid_t);
103 struct group *getgrent (void);
109 # if defined(_MSC_VER) || defined(__MINGW32__)
110 # include <sys/utime.h>
117 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
120 # define my_chsize PerlLIO_chsize
123 # define my_chsize PerlLIO_chsize
125 I32 my_chsize(int fd, Off_t length);
131 #else /* no flock() */
133 /* fcntl.h might not have been included, even if it exists, because
134 the current Configure only sets I_FCNTL if it's needed to pick up
135 the *_OK constants. Make sure it has been included before testing
136 the fcntl() locking constants. */
137 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
141 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
142 # define FLOCK fcntl_emulate_flock
143 # define FCNTL_EMULATE_FLOCK
144 # else /* no flock() or fcntl(F_SETLK,...) */
146 # define FLOCK lockf_emulate_flock
147 # define LOCKF_EMULATE_FLOCK
149 # endif /* no flock() or fcntl(F_SETLK,...) */
152 static int FLOCK (int, int);
155 * These are the flock() constants. Since this sytems doesn't have
156 * flock(), the values of the constants are probably not available.
170 # endif /* emulating flock() */
172 #endif /* no flock() */
175 static const char zero_but_true[ZBTLEN + 1] = "0 but true";
177 #if defined(I_SYS_ACCESS) && !defined(R_OK)
178 # include <sys/access.h>
184 /* Missing protos on LynxOS */
185 void sethostent(int);
186 void endhostent(void);
188 void endnetent(void);
189 void setprotoent(int);
190 void endprotoent(void);
191 void setservent(int);
192 void endservent(void);
196 # include "amigaos4/amigaio.h"
199 #undef PERL_EFF_ACCESS /* EFFective uid/gid ACCESS */
201 /* F_OK unused: if stat() cannot find it... */
203 #if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
204 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
205 # define PERL_EFF_ACCESS(p,f) (access((p), (f) | EFF_ONLY_OK))
208 #if !defined(PERL_EFF_ACCESS) && defined(HAS_EACCESS)
209 # ifdef I_SYS_SECURITY
210 # include <sys/security.h>
214 # define PERL_EFF_ACCESS(p,f) (eaccess((p), (f), ACC_SELF))
217 # define PERL_EFF_ACCESS(p,f) (eaccess((p), (f)))
221 #if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESSX) && defined(ACC_SELF)
223 # define PERL_EFF_ACCESS(p,f) (accessx((p), (f), ACC_SELF))
227 #if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) \
228 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
229 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
232 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
234 const Uid_t ruid = getuid();
235 const Uid_t euid = geteuid();
236 const Gid_t rgid = getgid();
237 const Gid_t egid = getegid();
240 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
241 Perl_croak(aTHX_ "switching effective uid is not implemented");
244 if (setreuid(euid, ruid))
247 if (setresuid(euid, ruid, (Uid_t)-1))
250 /* diag_listed_as: entering effective %s failed */
251 Perl_croak(aTHX_ "entering effective uid failed");
254 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
255 Perl_croak(aTHX_ "switching effective gid is not implemented");
258 if (setregid(egid, rgid))
261 if (setresgid(egid, rgid, (Gid_t)-1))
264 /* diag_listed_as: entering effective %s failed */
265 Perl_croak(aTHX_ "entering effective gid failed");
268 res = access(path, mode);
271 if (setreuid(ruid, euid))
274 if (setresuid(ruid, euid, (Uid_t)-1))
277 /* diag_listed_as: leaving effective %s failed */
278 Perl_croak(aTHX_ "leaving effective uid failed");
281 if (setregid(rgid, egid))
284 if (setresgid(rgid, egid, (Gid_t)-1))
287 /* diag_listed_as: leaving effective %s failed */
288 Perl_croak(aTHX_ "leaving effective gid failed");
292 # define PERL_EFF_ACCESS(p,f) (S_emulate_eaccess(aTHX_ (p), (f)))
299 const char * const tmps = POPpconstx;
300 const U8 gimme = GIMME_V;
301 const char *mode = "r";
304 if (PL_op->op_private & OPpOPEN_IN_RAW)
306 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
308 fp = PerlProc_popen(tmps, mode);
310 const char * const type = Perl_PerlIO_context_layers(aTHX_ NULL);
312 PerlIO_apply_layers(aTHX_ fp,mode,type);
314 if (gimme == G_VOID) {
316 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
319 else if (gimme == G_SCALAR) {
320 ENTER_with_name("backtick");
322 PL_rs = &PL_sv_undef;
323 sv_setpvs(TARG, ""); /* note that this preserves previous buffer */
324 while (sv_gets(TARG, fp, SvCUR(TARG)) != NULL)
326 LEAVE_with_name("backtick");
332 SV * const sv = newSV(79);
333 if (sv_gets(sv, fp, 0) == NULL) {
338 if (SvLEN(sv) - SvCUR(sv) > 20) {
339 SvPV_shrink_to_cur(sv);
344 STATUS_NATIVE_CHILD_SET(PerlProc_pclose(fp));
345 TAINT; /* "I believe that this is not gratuitous!" */
348 STATUS_NATIVE_CHILD_SET(-1);
349 if (gimme == G_SCALAR)
360 GV * const gv = (PL_op->op_flags & OPf_SPECIAL) ? NULL : (GV *)POPs;
364 /* make a copy of the pattern if it is gmagical, to ensure that magic
365 * is called once and only once */
366 if (SvGMAGICAL(TOPs)) TOPs = sv_2mortal(newSVsv(TOPs));
368 tryAMAGICunTARGETlist(iter_amg, (PL_op->op_flags & OPf_SPECIAL));
370 if (PL_op->op_flags & OPf_SPECIAL) {
371 /* call Perl-level glob function instead. Stack args are:
373 * and following OPs should be: gv(CORE::GLOBAL::glob), entersub
382 /* Note that we only ever get here if File::Glob fails to load
383 * without at the same time croaking, for some reason, or if
384 * perl was built with PERL_EXTERNAL_GLOB */
386 ENTER_with_name("glob");
391 * The external globbing program may use things we can't control,
392 * so for security reasons we must assume the worst.
395 taint_proper(PL_no_security, "glob");
399 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
402 SAVESPTR(PL_rs); /* This is not permanent, either. */
403 PL_rs = newSVpvs_flags("\000", SVs_TEMP);
406 *SvPVX(PL_rs) = '\n';
410 result = do_readline();
411 LEAVE_with_name("glob");
417 PL_last_in_gv = cGVOP_gv;
418 return do_readline();
428 do_join(TARG, &PL_sv_no, MARK, SP);
432 else if (SP == MARK) {
439 if (SvGMAGICAL(exsv)) exsv = sv_mortalcopy(exsv);
442 if (SvROK(exsv) || (SvPV_const(exsv, len), len)) {
443 /* well-formed exception supplied */
446 SV * const errsv = ERRSV;
449 if (SvGMAGICAL(errsv)) {
450 exsv = sv_newmortal();
451 sv_setsv_nomg(exsv, errsv);
455 else if (SvPOKp(errsv) ? SvCUR(errsv) : SvNIOKp(errsv)) {
456 exsv = sv_newmortal();
457 sv_setsv_nomg(exsv, errsv);
458 sv_catpvs(exsv, "\t...caught");
461 exsv = newSVpvs_flags("Warning: something's wrong", SVs_TEMP);
464 if (SvROK(exsv) && !PL_warnhook)
465 Perl_warn(aTHX_ "%"SVf, SVfARG(exsv));
477 VMSISH_HUSHED || (PL_curcop->op_private & OPpHUSH_VMSISH);
479 if (SP - MARK != 1) {
481 do_join(TARG, &PL_sv_no, MARK, SP);
489 if (SvROK(exsv) || (SvPV_const(exsv, len), len)) {
490 /* well-formed exception supplied */
493 SV * const errsv = ERRSV;
497 if (sv_isobject(exsv)) {
498 HV * const stash = SvSTASH(SvRV(exsv));
499 GV * const gv = gv_fetchmethod(stash, "PROPAGATE");
501 SV * const file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
502 SV * const line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
509 call_sv(MUTABLE_SV(GvCV(gv)),
510 G_SCALAR|G_EVAL|G_KEEPERR);
511 exsv = sv_mortalcopy(*PL_stack_sp--);
515 else if (SvPOK(errsv) && SvCUR(errsv)) {
516 exsv = sv_mortalcopy(errsv);
517 sv_catpvs(exsv, "\t...propagated");
520 exsv = newSVpvs_flags("Died", SVs_TEMP);
524 NOT_REACHED; /* NOTREACHED */
525 return NULL; /* avoid missing return from non-void function warning */
531 Perl_tied_method(pTHX_ SV *methname, SV **sp, SV *const sv,
532 const MAGIC *const mg, const U32 flags, U32 argc, ...)
538 PERL_ARGS_ASSERT_TIED_METHOD;
540 /* Ensure that our flag bits do not overlap. */
541 STATIC_ASSERT_STMT((TIED_METHOD_MORTALIZE_NOT_NEEDED & G_WANT) == 0);
542 STATIC_ASSERT_STMT((TIED_METHOD_ARGUMENTS_ON_STACK & G_WANT) == 0);
543 STATIC_ASSERT_STMT((TIED_METHOD_SAY & G_WANT) == 0);
545 PUTBACK; /* sp is at *foot* of args, so this pops args from old stack */
546 PUSHSTACKi(PERLSI_MAGIC);
547 /* extend for object + args. If argc might wrap/truncate when cast
548 * to SSize_t and incremented, set to -1, which will trigger a panic in
550 * The weird way this is written is because g++ is dumb enough to
551 * warn "comparison is always false" on something like:
553 * sizeof(a) >= sizeof(b) && a >= B_t_MAX -1
555 * (where the LH condition is false)
558 (argc > (sizeof(argc) >= sizeof(SSize_t) ? SSize_t_MAX - 1 : argc))
559 ? -1 : (SSize_t)argc + 1;
560 EXTEND(SP, extend_size);
562 PUSHs(SvTIED_obj(sv, mg));
563 if (flags & TIED_METHOD_ARGUMENTS_ON_STACK) {
564 Copy(orig_sp + 2, sp + 1, argc, SV*); /* copy args to new stack */
568 const U32 mortalize_not_needed
569 = flags & TIED_METHOD_MORTALIZE_NOT_NEEDED;
571 va_start(args, argc);
573 SV *const arg = va_arg(args, SV *);
574 if(mortalize_not_needed)
583 ENTER_with_name("call_tied_method");
584 if (flags & TIED_METHOD_SAY) {
585 /* local $\ = "\n" */
586 SAVEGENERICSV(PL_ors_sv);
587 PL_ors_sv = newSVpvs("\n");
589 ret_args = call_sv(methname, (flags & G_WANT)|G_METHOD_NAMED);
594 if (ret_args) { /* copy results back to original stack */
595 EXTEND(sp, ret_args);
596 Copy(orig_sp - ret_args + 1, sp + 1, ret_args, SV*);
600 LEAVE_with_name("call_tied_method");
604 #define tied_method0(a,b,c,d) \
605 Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,0)
606 #define tied_method1(a,b,c,d,e) \
607 Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,1,e)
608 #define tied_method2(a,b,c,d,e,f) \
609 Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,2,e,f)
622 GV * const gv = MUTABLE_GV(*++MARK);
624 if (!isGV(gv) && !(SvTYPE(gv) == SVt_PVLV && isGV_with_GP(gv)))
625 DIE(aTHX_ PL_no_usym, "filehandle");
627 if ((io = GvIOp(gv))) {
629 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
632 Perl_ck_warner_d(aTHX_ packWARN2(WARN_IO, WARN_DEPRECATED),
633 "Opening dirhandle %"HEKf" also as a file",
634 HEKfARG(GvENAME_HEK(gv)));
636 mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
638 /* Method's args are same as ours ... */
639 /* ... except handle is replaced by the object */
640 return Perl_tied_method(aTHX_ SV_CONST(OPEN), mark - 1, MUTABLE_SV(io), mg,
641 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
653 tmps = SvPV_const(sv, len);
654 ok = do_open6(gv, tmps, len, NULL, MARK+1, (SP-MARK));
657 PUSHi( (I32)PL_forkprocess );
658 else if (PL_forkprocess == 0) /* we are a new child */
669 MAXARG == 0 || (!TOPs && !POPs) ? PL_defoutgv : MUTABLE_GV(POPs);
675 IO * const io = GvIO(gv);
677 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
679 return tied_method0(SV_CONST(CLOSE), SP, MUTABLE_SV(io), mg);
683 PUSHs(boolSV(do_close(gv, TRUE)));
695 GV * const wgv = MUTABLE_GV(POPs);
696 GV * const rgv = MUTABLE_GV(POPs);
700 do_close(rgv, FALSE);
704 do_close(wgv, FALSE);
706 if (PerlProc_pipe(fd) < 0)
709 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
710 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
711 IoOFP(rstio) = IoIFP(rstio);
712 IoIFP(wstio) = IoOFP(wstio);
713 IoTYPE(rstio) = IoTYPE_RDONLY;
714 IoTYPE(wstio) = IoTYPE_WRONLY;
716 if (!IoIFP(rstio) || !IoOFP(wstio)) {
718 PerlIO_close(IoIFP(rstio));
720 PerlLIO_close(fd[0]);
722 PerlIO_close(IoOFP(wstio));
724 PerlLIO_close(fd[1]);
727 #if defined(HAS_FCNTL) && defined(F_SETFD) && defined(FD_CLOEXEC)
728 /* ensure close-on-exec */
729 if ((fd[0] > PL_maxsysfd && fcntl(fd[0], F_SETFD, FD_CLOEXEC) < 0) ||
730 (fd[1] > PL_maxsysfd && fcntl(fd[1], F_SETFD, FD_CLOEXEC) < 0))
738 DIE(aTHX_ PL_no_func, "pipe");
752 gv = MUTABLE_GV(POPs);
756 && (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar)))
758 return tied_method0(SV_CONST(FILENO), SP, MUTABLE_SV(io), mg);
761 if (io && IoDIRP(io)) {
762 #if defined(HAS_DIRFD) || defined(HAS_DIR_DD_FD)
763 PUSHi(my_dirfd(IoDIRP(io)));
765 #elif defined(ENOTSUP)
766 errno = ENOTSUP; /* Operation not supported */
768 #elif defined(EOPNOTSUPP)
769 errno = EOPNOTSUPP; /* Operation not supported on socket */
772 errno = EINVAL; /* Invalid argument */
777 if (!io || !(fp = IoIFP(io))) {
778 /* Can't do this because people seem to do things like
779 defined(fileno($foo)) to check whether $foo is a valid fh.
786 PUSHi(PerlIO_fileno(fp));
797 if (MAXARG < 1 || (!TOPs && !POPs)) {
798 anum = PerlLIO_umask(022);
799 /* setting it to 022 between the two calls to umask avoids
800 * to have a window where the umask is set to 0 -- meaning
801 * that another thread could create world-writeable files. */
803 (void)PerlLIO_umask(anum);
806 anum = PerlLIO_umask(POPi);
807 TAINT_PROPER("umask");
810 /* Only DIE if trying to restrict permissions on "user" (self).
811 * Otherwise it's harmless and more useful to just return undef
812 * since 'group' and 'other' concepts probably don't exist here. */
813 if (MAXARG >= 1 && (TOPs||POPs) && (POPi & 0700))
814 DIE(aTHX_ "umask not implemented");
815 XPUSHs(&PL_sv_undef);
834 gv = MUTABLE_GV(POPs);
838 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
840 /* This takes advantage of the implementation of the varargs
841 function, which I don't think that the optimiser will be able to
842 figure out. Although, as it's a static function, in theory it
844 return Perl_tied_method(aTHX_ SV_CONST(BINMODE), SP, MUTABLE_SV(io), mg,
845 G_SCALAR|TIED_METHOD_MORTALIZE_NOT_NEEDED,
846 discp ? 1 : 0, discp);
850 if (!io || !(fp = IoIFP(io))) {
852 SETERRNO(EBADF,RMS_IFI);
859 const char *d = NULL;
862 d = SvPV_const(discp, len);
863 mode = mode_from_discipline(d, len);
864 if (PerlIO_binmode(aTHX_ fp, IoTYPE(io), mode, d)) {
865 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
866 if (!PerlIO_binmode(aTHX_ IoOFP(io), IoTYPE(io), mode, d)) {
887 const I32 markoff = MARK - PL_stack_base;
888 const char *methname;
889 int how = PERL_MAGIC_tied;
893 switch(SvTYPE(varsv)) {
897 methname = "TIEHASH";
898 if (HvLAZYDEL(varsv) && (entry = HvEITER((HV *)varsv))) {
899 HvLAZYDEL_off(varsv);
900 hv_free_ent((HV *)varsv, entry);
902 HvEITER_set(MUTABLE_HV(varsv), 0);
906 methname = "TIEARRAY";
907 if (!AvREAL(varsv)) {
909 Perl_croak(aTHX_ "Cannot tie unreifiable array");
910 av_clear((AV *)varsv);
917 if (isGV_with_GP(varsv) && !SvFAKE(varsv)) {
918 methname = "TIEHANDLE";
919 how = PERL_MAGIC_tiedscalar;
920 /* For tied filehandles, we apply tiedscalar magic to the IO
921 slot of the GP rather than the GV itself. AMS 20010812 */
923 GvIOp(varsv) = newIO();
924 varsv = MUTABLE_SV(GvIOp(varsv));
927 if (SvTYPE(varsv) == SVt_PVLV && LvTYPE(varsv) == 'y') {
928 vivify_defelem(varsv);
929 varsv = LvTARG(varsv);
933 methname = "TIESCALAR";
934 how = PERL_MAGIC_tiedscalar;
938 if (sv_isobject(*MARK)) { /* Calls GET magic. */
939 ENTER_with_name("call_TIE");
940 PUSHSTACKi(PERLSI_MAGIC);
942 EXTEND(SP,(I32)items);
946 call_method(methname, G_SCALAR);
949 /* Can't use call_method here, else this: fileno FOO; tie @a, "FOO"
950 * will attempt to invoke IO::File::TIEARRAY, with (best case) the
951 * wrong error message, and worse case, supreme action at a distance.
952 * (Sorry obfuscation writers. You're not going to be given this one.)
954 stash = gv_stashsv(*MARK, 0);
955 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
956 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
957 methname, SVfARG(SvOK(*MARK) ? *MARK : &PL_sv_no));
959 ENTER_with_name("call_TIE");
960 PUSHSTACKi(PERLSI_MAGIC);
962 EXTEND(SP,(I32)items);
966 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
972 if (sv_isobject(sv)) {
973 sv_unmagic(varsv, how);
974 /* Croak if a self-tie on an aggregate is attempted. */
975 if (varsv == SvRV(sv) &&
976 (SvTYPE(varsv) == SVt_PVAV ||
977 SvTYPE(varsv) == SVt_PVHV))
979 "Self-ties of arrays and hashes are not supported");
980 sv_magic(varsv, (SvRV(sv) == varsv ? NULL : sv), how, NULL, 0);
982 LEAVE_with_name("call_TIE");
983 SP = PL_stack_base + markoff;
989 /* also used for: pp_dbmclose() */
996 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
997 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
999 if (isGV_with_GP(sv) && !SvFAKE(sv) && !(sv = MUTABLE_SV(GvIOp(sv))))
1002 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y' &&
1003 !(sv = defelem_target(sv, NULL))) RETPUSHUNDEF;
1005 if ((mg = SvTIED_mg(sv, how))) {
1006 SV * const obj = SvRV(SvTIED_obj(sv, mg));
1008 GV * const gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE);
1010 if (gv && isGV(gv) && (cv = GvCV(gv))) {
1012 PUSHs(SvTIED_obj(MUTABLE_SV(gv), mg));
1013 mXPUSHi(SvREFCNT(obj) - 1);
1015 ENTER_with_name("call_UNTIE");
1016 call_sv(MUTABLE_SV(cv), G_VOID);
1017 LEAVE_with_name("call_UNTIE");
1020 else if (mg && SvREFCNT(obj) > 1) {
1021 Perl_ck_warner(aTHX_ packWARN(WARN_UNTIE),
1022 "untie attempted while %"UVuf" inner references still exist",
1023 (UV)SvREFCNT(obj) - 1 ) ;
1027 sv_unmagic(sv, how) ;
1036 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
1037 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
1039 if (isGV_with_GP(sv) && !SvFAKE(sv) && !(sv = MUTABLE_SV(GvIOp(sv))))
1042 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y' &&
1043 !(sv = defelem_target(sv, NULL))) goto ret_undef;
1045 if ((mg = SvTIED_mg(sv, how))) {
1046 SETs(SvTIED_obj(sv, mg));
1047 return NORMAL; /* PUTBACK not needed, pp_tied never moves SP */
1061 HV * const hv = MUTABLE_HV(POPs);
1062 SV * const sv = newSVpvs_flags("AnyDBM_File", SVs_TEMP);
1063 stash = gv_stashsv(sv, 0);
1064 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
1066 require_pv("AnyDBM_File.pm");
1068 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH")))
1069 DIE(aTHX_ "No dbm on this machine");
1079 mPUSHu(O_RDWR|O_CREAT);
1083 if (!SvOK(right)) right = &PL_sv_no;
1087 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
1090 if (!sv_isobject(TOPs)) {
1098 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
1100 if (sv_isobject(TOPs))
1105 sv_unmagic(MUTABLE_SV(hv), PERL_MAGIC_tied);
1106 sv_magic(MUTABLE_SV(hv), TOPs, PERL_MAGIC_tied, NULL, 0);
1123 struct timeval timebuf;
1124 struct timeval *tbuf = &timebuf;
1127 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1132 # if BYTEORDER & 0xf0000
1133 # define ORDERBYTE (0x88888888 - BYTEORDER)
1135 # define ORDERBYTE (0x4444 - BYTEORDER)
1141 for (i = 1; i <= 3; i++) {
1142 SV * const sv = SP[i];
1146 if (SvREADONLY(sv)) {
1147 if (!(SvPOK(sv) && SvCUR(sv) == 0))
1148 Perl_croak_no_modify();
1150 else if (SvIsCOW(sv)) sv_force_normal_flags(sv, 0);
1153 Perl_ck_warner(aTHX_ packWARN(WARN_MISC),
1154 "Non-string passed as bitmask");
1155 SvPV_force_nomg_nolen(sv); /* force string conversion */
1162 /* little endians can use vecs directly */
1163 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1170 masksize = NFDBITS / NBBY;
1172 masksize = sizeof(long); /* documented int, everyone seems to use long */
1174 Zero(&fd_sets[0], 4, char*);
1177 # if SELECT_MIN_BITS == 1
1178 growsize = sizeof(fd_set);
1180 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1181 # undef SELECT_MIN_BITS
1182 # define SELECT_MIN_BITS __FD_SETSIZE
1184 /* If SELECT_MIN_BITS is greater than one we most probably will want
1185 * to align the sizes with SELECT_MIN_BITS/8 because for example
1186 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1187 * UNIX, Solaris, Darwin) the smallest quantum select() operates
1188 * on (sets/tests/clears bits) is 32 bits. */
1189 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1195 value = SvNV_nomg(sv);
1198 timebuf.tv_sec = (long)value;
1199 value -= (NV)timebuf.tv_sec;
1200 timebuf.tv_usec = (long)(value * 1000000.0);
1205 for (i = 1; i <= 3; i++) {
1207 if (!SvOK(sv) || SvCUR(sv) == 0) {
1214 Sv_Grow(sv, growsize);
1218 while (++j <= growsize) {
1222 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1224 Newx(fd_sets[i], growsize, char);
1225 for (offset = 0; offset < growsize; offset += masksize) {
1226 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1227 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1230 fd_sets[i] = SvPVX(sv);
1234 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1235 /* Can't make just the (void*) conditional because that would be
1236 * cpp #if within cpp macro, and not all compilers like that. */
1237 nfound = PerlSock_select(
1239 (Select_fd_set_t) fd_sets[1],
1240 (Select_fd_set_t) fd_sets[2],
1241 (Select_fd_set_t) fd_sets[3],
1242 (void*) tbuf); /* Workaround for compiler bug. */
1244 nfound = PerlSock_select(
1246 (Select_fd_set_t) fd_sets[1],
1247 (Select_fd_set_t) fd_sets[2],
1248 (Select_fd_set_t) fd_sets[3],
1251 for (i = 1; i <= 3; i++) {
1254 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1256 for (offset = 0; offset < growsize; offset += masksize) {
1257 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1258 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1260 Safefree(fd_sets[i]);
1267 if (GIMME_V == G_ARRAY && tbuf) {
1268 value = (NV)(timebuf.tv_sec) +
1269 (NV)(timebuf.tv_usec) / 1000000.0;
1274 DIE(aTHX_ "select not implemented");
1282 =for apidoc setdefout
1284 Sets C<PL_defoutgv>, the default file handle for output, to the passed in
1285 typeglob. As C<PL_defoutgv> "owns" a reference on its typeglob, the reference
1286 count of the passed in typeglob is increased by one, and the reference count
1287 of the typeglob that C<PL_defoutgv> points to is decreased by one.
1293 Perl_setdefout(pTHX_ GV *gv)
1295 GV *oldgv = PL_defoutgv;
1297 PERL_ARGS_ASSERT_SETDEFOUT;
1299 SvREFCNT_inc_simple_void_NN(gv);
1301 SvREFCNT_dec(oldgv);
1308 GV * const newdefout = (PL_op->op_private > 0) ? (MUTABLE_GV(POPs)) : NULL;
1309 GV * egv = GvEGVx(PL_defoutgv);
1314 hv = isGV_with_GP(egv) ? GvSTASH(egv) : NULL;
1315 gvp = hv && HvENAME(hv)
1316 ? (GV**)hv_fetch(hv, GvNAME(egv), HEK_UTF8(GvNAME_HEK(egv)) ? -GvNAMELEN(egv) : GvNAMELEN(egv), FALSE)
1318 if (gvp && *gvp == egv) {
1319 gv_efullname4(TARG, PL_defoutgv, NULL, TRUE);
1323 mXPUSHs(newRV(MUTABLE_SV(egv)));
1327 if (!GvIO(newdefout))
1328 gv_IOadd(newdefout);
1329 setdefout(newdefout);
1339 MAXARG==0 || (!TOPs && !POPs) ? PL_stdingv : MUTABLE_GV(POPs);
1340 IO *const io = GvIO(gv);
1346 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
1348 const U8 gimme = GIMME_V;
1349 Perl_tied_method(aTHX_ SV_CONST(GETC), SP, MUTABLE_SV(io), mg, gimme, 0);
1350 if (gimme == G_SCALAR) {
1352 SvSetMagicSV_nosteal(TARG, TOPs);
1357 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1358 if (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
1360 SETERRNO(EBADF,RMS_IFI);
1364 sv_setpvs(TARG, " ");
1365 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1366 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1367 /* Find out how many bytes the char needs */
1368 Size_t len = UTF8SKIP(SvPVX_const(TARG));
1371 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1372 SvCUR_set(TARG,1+len);
1376 else SvUTF8_off(TARG);
1382 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1385 const U8 gimme = GIMME_V;
1387 PERL_ARGS_ASSERT_DOFORM;
1390 cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv))));
1392 cx = cx_pushblock(CXt_FORMAT, gimme, PL_stack_sp, PL_savestack_ix);
1393 cx_pushformat(cx, cv, retop, gv);
1394 if (CvDEPTH(cv) >= 2)
1395 pad_push(CvPADLIST(cv), CvDEPTH(cv));
1396 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), CvDEPTH(cv));
1398 setdefout(gv); /* locally select filehandle so $% et al work */
1416 gv = MUTABLE_GV(POPs);
1433 tmpsv = sv_newmortal();
1434 gv_efullname4(tmpsv, fgv, NULL, FALSE);
1435 DIE(aTHX_ "Undefined format \"%"SVf"\" called", SVfARG(tmpsv));
1437 IoFLAGS(io) &= ~IOf_DIDTOP;
1438 RETURNOP(doform(cv,gv,PL_op->op_next));
1444 GV * const gv = CX_CUR()->blk_format.gv;
1445 IO * const io = GvIOp(gv);
1450 bool is_return = cBOOL(PL_op->op_type == OP_RETURN);
1452 if (is_return || !io || !(ofp = IoOFP(io)))
1455 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1456 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1458 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1459 PL_formtarget != PL_toptarget)
1463 if (!IoTOP_GV(io)) {
1466 if (!IoTOP_NAME(io)) {
1468 if (!IoFMT_NAME(io))
1469 IoFMT_NAME(io) = savepv(GvNAME(gv));
1470 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%"HEKf"_TOP",
1471 HEKfARG(GvNAME_HEK(gv))));
1472 topgv = gv_fetchsv(topname, 0, SVt_PVFM);
1473 if ((topgv && GvFORM(topgv)) ||
1474 !gv_fetchpvs("top", GV_NOTQUAL, SVt_PVFM))
1475 IoTOP_NAME(io) = savesvpv(topname);
1477 IoTOP_NAME(io) = savepvs("top");
1479 topgv = gv_fetchpv(IoTOP_NAME(io), 0, SVt_PVFM);
1480 if (!topgv || !GvFORM(topgv)) {
1481 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1484 IoTOP_GV(io) = topgv;
1486 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1487 I32 lines = IoLINES_LEFT(io);
1488 const char *s = SvPVX_const(PL_formtarget);
1489 if (lines <= 0) /* Yow, header didn't even fit!!! */
1491 while (lines-- > 0) {
1492 s = strchr(s, '\n');
1498 const STRLEN save = SvCUR(PL_formtarget);
1499 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
1500 do_print(PL_formtarget, ofp);
1501 SvCUR_set(PL_formtarget, save);
1502 sv_chop(PL_formtarget, s);
1503 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1506 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1507 do_print(GvSV(gv_fetchpvs("\f", GV_ADD, SVt_PV)), ofp);
1508 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1510 PL_formtarget = PL_toptarget;
1511 IoFLAGS(io) |= IOf_DIDTOP;
1513 assert(fgv); /* IoTOP_GV(io) should have been set above */
1516 SV * const sv = sv_newmortal();
1517 gv_efullname4(sv, fgv, NULL, FALSE);
1518 DIE(aTHX_ "Undefined top format \"%"SVf"\" called", SVfARG(sv));
1520 return doform(cv, gv, PL_op);
1525 assert(CxTYPE(cx) == CXt_FORMAT);
1526 SP = PL_stack_base + cx->blk_oldsp; /* ignore retval of formline */
1530 retop = cx->blk_sub.retop;
1534 /* XXX the semantics of doing 'return' in a format aren't documented.
1535 * Currently we ignore any args to 'return' and just return
1536 * a single undef in both scalar and list contexts
1538 PUSHs(&PL_sv_undef);
1539 else if (!io || !(fp = IoOFP(io))) {
1540 if (io && IoIFP(io))
1541 report_wrongway_fh(gv, '<');
1547 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1548 Perl_ck_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1550 if (!do_print(PL_formtarget, fp))
1553 FmLINES(PL_formtarget) = 0;
1554 SvCUR_set(PL_formtarget, 0);
1555 *SvEND(PL_formtarget) = '\0';
1556 if (IoFLAGS(io) & IOf_FLUSH)
1557 (void)PerlIO_flush(fp);
1561 PL_formtarget = PL_bodytarget;
1567 dSP; dMARK; dORIGMARK;
1571 = (PL_op->op_flags & OPf_STACKED) ? MUTABLE_GV(*++MARK) : PL_defoutgv;
1572 IO *const io = GvIO(gv);
1574 /* Treat empty list as "" */
1575 if (MARK == SP) XPUSHs(&PL_sv_no);
1578 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
1580 if (MARK == ORIGMARK) {
1583 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1586 return Perl_tied_method(aTHX_ SV_CONST(PRINTF), mark - 1, MUTABLE_SV(io),
1588 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
1595 SETERRNO(EBADF,RMS_IFI);
1598 else if (!(fp = IoOFP(io))) {
1600 report_wrongway_fh(gv, '<');
1601 else if (ckWARN(WARN_CLOSED))
1603 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1607 SV *sv = sv_newmortal();
1608 do_sprintf(sv, SP - MARK, MARK + 1);
1609 if (!do_print(sv, fp))
1612 if (IoFLAGS(io) & IOf_FLUSH)
1613 if (PerlIO_flush(fp) == EOF)
1622 PUSHs(&PL_sv_undef);
1629 const int perm = (MAXARG > 3 && (TOPs || POPs)) ? POPi : 0666;
1630 const int mode = POPi;
1631 SV * const sv = POPs;
1632 GV * const gv = MUTABLE_GV(POPs);
1635 /* Need TIEHANDLE method ? */
1636 const char * const tmps = SvPV_const(sv, len);
1637 if (do_open_raw(gv, tmps, len, mode, perm)) {
1638 IoLINES(GvIOp(gv)) = 0;
1642 PUSHs(&PL_sv_undef);
1648 /* also used for: pp_read() and pp_recv() (where supported) */
1652 dSP; dMARK; dORIGMARK; dTARGET;
1666 bool charstart = FALSE;
1667 STRLEN charskip = 0;
1669 GV * const gv = MUTABLE_GV(*++MARK);
1672 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1673 && gv && (io = GvIO(gv)) )
1675 const MAGIC *const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
1677 return Perl_tied_method(aTHX_ SV_CONST(READ), mark - 1, MUTABLE_SV(io), mg,
1678 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
1687 sv_setpvs(bufsv, "");
1688 length = SvIVx(*++MARK);
1690 DIE(aTHX_ "Negative length");
1693 offset = SvIVx(*++MARK);
1697 if (!io || !IoIFP(io)) {
1699 SETERRNO(EBADF,RMS_IFI);
1703 /* Note that fd can here validly be -1, don't check it yet. */
1704 fd = PerlIO_fileno(IoIFP(io));
1706 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1707 if (PL_op->op_type == OP_SYSREAD || PL_op->op_type == OP_RECV) {
1708 Perl_ck_warner(aTHX_ packWARN(WARN_DEPRECATED),
1709 "%s() is deprecated on :utf8 handles",
1712 buffer = SvPVutf8_force(bufsv, blen);
1713 /* UTF-8 may not have been set if they are all low bytes */
1718 buffer = SvPV_force(bufsv, blen);
1719 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1721 if (DO_UTF8(bufsv)) {
1722 blen = sv_len_utf8_nomg(bufsv);
1731 if (PL_op->op_type == OP_RECV) {
1732 Sock_size_t bufsize;
1733 char namebuf[MAXPATHLEN];
1735 SETERRNO(EBADF,SS_IVCHAN);
1738 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(__QNXNTO__)
1739 bufsize = sizeof (struct sockaddr_in);
1741 bufsize = sizeof namebuf;
1743 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1747 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1748 /* 'offset' means 'flags' here */
1749 count = PerlSock_recvfrom(fd, buffer, length, offset,
1750 (struct sockaddr *)namebuf, &bufsize);
1753 /* MSG_TRUNC can give oversized count; quietly lose it */
1756 SvCUR_set(bufsv, count);
1757 *SvEND(bufsv) = '\0';
1758 (void)SvPOK_only(bufsv);
1762 /* This should not be marked tainted if the fp is marked clean */
1763 if (!(IoFLAGS(io) & IOf_UNTAINT))
1764 SvTAINTED_on(bufsv);
1766 #if defined(__CYGWIN__)
1767 /* recvfrom() on cygwin doesn't set bufsize at all for
1768 connected sockets, leaving us with trash in the returned
1769 name, so use the same test as the Win32 code to check if it
1770 wasn't set, and set it [perl #118843] */
1771 if (bufsize == sizeof namebuf)
1774 sv_setpvn(TARG, namebuf, bufsize);
1780 if (-offset > (SSize_t)blen)
1781 DIE(aTHX_ "Offset outside string");
1784 if (DO_UTF8(bufsv)) {
1785 /* convert offset-as-chars to offset-as-bytes */
1786 if (offset >= (SSize_t)blen)
1787 offset += SvCUR(bufsv) - blen;
1789 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1793 /* Reestablish the fd in case it shifted from underneath us. */
1794 fd = PerlIO_fileno(IoIFP(io));
1796 orig_size = SvCUR(bufsv);
1797 /* Allocating length + offset + 1 isn't perfect in the case of reading
1798 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1800 (should be 2 * length + offset + 1, or possibly something longer if
1801 IN_ENCODING Is true) */
1802 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1803 if (offset > 0 && offset > (SSize_t)orig_size) { /* Zero any newly allocated space */
1804 Zero(buffer+orig_size, offset-orig_size, char);
1806 buffer = buffer + offset;
1808 read_target = bufsv;
1810 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1811 concatenate it to the current buffer. */
1813 /* Truncate the existing buffer to the start of where we will be
1815 SvCUR_set(bufsv, offset);
1817 read_target = sv_newmortal();
1818 SvUPGRADE(read_target, SVt_PV);
1819 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1822 if (PL_op->op_type == OP_SYSREAD) {
1823 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1824 if (IoTYPE(io) == IoTYPE_SOCKET) {
1826 SETERRNO(EBADF,SS_IVCHAN);
1830 count = PerlSock_recv(fd, buffer, length, 0);
1836 SETERRNO(EBADF,RMS_IFI);
1840 count = PerlLIO_read(fd, buffer, length);
1845 count = PerlIO_read(IoIFP(io), buffer, length);
1846 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1847 if (count == 0 && PerlIO_error(IoIFP(io)))
1851 if (IoTYPE(io) == IoTYPE_WRONLY)
1852 report_wrongway_fh(gv, '>');
1855 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1856 *SvEND(read_target) = '\0';
1857 (void)SvPOK_only(read_target);
1858 if (fp_utf8 && !IN_BYTES) {
1859 /* Look at utf8 we got back and count the characters */
1860 const char *bend = buffer + count;
1861 while (buffer < bend) {
1863 skip = UTF8SKIP(buffer);
1866 if (buffer - charskip + skip > bend) {
1867 /* partial character - try for rest of it */
1868 length = skip - (bend-buffer);
1869 offset = bend - SvPVX_const(bufsv);
1881 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1882 provided amount read (count) was what was requested (length)
1884 if (got < wanted && count == length) {
1885 length = wanted - got;
1886 offset = bend - SvPVX_const(bufsv);
1889 /* return value is character count */
1893 else if (buffer_utf8) {
1894 /* Let svcatsv upgrade the bytes we read in to utf8.
1895 The buffer is a mortal so will be freed soon. */
1896 sv_catsv_nomg(bufsv, read_target);
1899 /* This should not be marked tainted if the fp is marked clean */
1900 if (!(IoFLAGS(io) & IOf_UNTAINT))
1901 SvTAINTED_on(bufsv);
1912 /* also used for: pp_send() where defined */
1916 dSP; dMARK; dORIGMARK; dTARGET;
1921 STRLEN orig_blen_bytes;
1922 const int op_type = PL_op->op_type;
1925 GV *const gv = MUTABLE_GV(*++MARK);
1926 IO *const io = GvIO(gv);
1929 if (op_type == OP_SYSWRITE && io) {
1930 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
1932 if (MARK == SP - 1) {
1934 mXPUSHi(sv_len(sv));
1938 return Perl_tied_method(aTHX_ SV_CONST(WRITE), mark - 1, MUTABLE_SV(io), mg,
1939 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
1949 if (!io || !IoIFP(io) || IoTYPE(io) == IoTYPE_RDONLY) {
1951 if (io && IoIFP(io))
1952 report_wrongway_fh(gv, '<');
1955 SETERRNO(EBADF,RMS_IFI);
1958 fd = PerlIO_fileno(IoIFP(io));
1960 SETERRNO(EBADF,SS_IVCHAN);
1965 /* Do this first to trigger any overloading. */
1966 buffer = SvPV_const(bufsv, blen);
1967 orig_blen_bytes = blen;
1968 doing_utf8 = DO_UTF8(bufsv);
1970 if (PerlIO_isutf8(IoIFP(io))) {
1971 Perl_ck_warner(aTHX_ packWARN(WARN_DEPRECATED),
1972 "%s() is deprecated on :utf8 handles",
1974 if (!SvUTF8(bufsv)) {
1975 /* We don't modify the original scalar. */
1976 tmpbuf = bytes_to_utf8((const U8*) buffer, &blen);
1977 buffer = (char *) tmpbuf;
1981 else if (doing_utf8) {
1982 STRLEN tmplen = blen;
1983 U8 * const result = bytes_from_utf8((const U8*) buffer, &tmplen, &doing_utf8);
1986 buffer = (char *) tmpbuf;
1990 assert((char *)result == buffer);
1991 Perl_croak(aTHX_ "Wide character in %s", OP_DESC(PL_op));
1996 if (op_type == OP_SEND) {
1997 const int flags = SvIVx(*++MARK);
2000 char * const sockbuf = SvPVx(*++MARK, mlen);
2001 retval = PerlSock_sendto(fd, buffer, blen,
2002 flags, (struct sockaddr *)sockbuf, mlen);
2005 retval = PerlSock_send(fd, buffer, blen, flags);
2011 Size_t length = 0; /* This length is in characters. */
2017 /* The SV is bytes, and we've had to upgrade it. */
2018 blen_chars = orig_blen_bytes;
2020 /* The SV really is UTF-8. */
2021 /* Don't call sv_len_utf8 on a magical or overloaded
2022 scalar, as we might get back a different result. */
2023 blen_chars = sv_or_pv_len_utf8(bufsv, buffer, blen);
2030 length = blen_chars;
2032 #if Size_t_size > IVSIZE
2033 length = (Size_t)SvNVx(*++MARK);
2035 length = (Size_t)SvIVx(*++MARK);
2037 if ((SSize_t)length < 0) {
2039 DIE(aTHX_ "Negative length");
2044 offset = SvIVx(*++MARK);
2046 if (-offset > (IV)blen_chars) {
2048 DIE(aTHX_ "Offset outside string");
2050 offset += blen_chars;
2051 } else if (offset > (IV)blen_chars) {
2053 DIE(aTHX_ "Offset outside string");
2057 if (length > blen_chars - offset)
2058 length = blen_chars - offset;
2060 /* Here we convert length from characters to bytes. */
2061 if (tmpbuf || SvGMAGICAL(bufsv) || SvAMAGIC(bufsv)) {
2062 /* Either we had to convert the SV, or the SV is magical, or
2063 the SV has overloading, in which case we can't or mustn't
2064 or mustn't call it again. */
2066 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
2067 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
2069 /* It's a real UTF-8 SV, and it's not going to change under
2070 us. Take advantage of any cache. */
2072 I32 len_I32 = length;
2074 /* Convert the start and end character positions to bytes.
2075 Remember that the second argument to sv_pos_u2b is relative
2077 sv_pos_u2b(bufsv, &start, &len_I32);
2084 buffer = buffer+offset;
2086 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
2087 if (IoTYPE(io) == IoTYPE_SOCKET) {
2088 retval = PerlSock_send(fd, buffer, length, 0);
2093 /* See the note at doio.c:do_print about filesize limits. --jhi */
2094 retval = PerlLIO_write(fd, buffer, length);
2102 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
2105 #if Size_t_size > IVSIZE
2125 * in Perl 5.12 and later, the additional parameter is a bitmask:
2128 * 2 = eof() <- ARGV magic
2130 * I'll rely on the compiler's trace flow analysis to decide whether to
2131 * actually assign this out here, or punt it into the only block where it is
2132 * used. Doing it out here is DRY on the condition logic.
2137 gv = PL_last_in_gv = MUTABLE_GV(POPs); /* eof(FH) */
2143 if (PL_op->op_flags & OPf_SPECIAL) {
2144 gv = PL_last_in_gv = GvEGVx(PL_argvgv); /* eof() - ARGV magic */
2148 gv = PL_last_in_gv; /* eof */
2156 if ((io = GvIO(gv)) && (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar))) {
2157 return tied_method1(SV_CONST(EOF), SP, MUTABLE_SV(io), mg, newSVuv(which));
2160 if (!MAXARG && (PL_op->op_flags & OPf_SPECIAL)) { /* eof() */
2161 if (io && !IoIFP(io)) {
2162 if ((IoFLAGS(io) & IOf_START) && av_tindex(GvAVn(gv)) < 0) {
2165 IoFLAGS(io) &= ~IOf_START;
2166 do_open6(gv, "-", 1, NULL, NULL, 0);
2174 *svp = newSVpvs("-");
2176 else if (!nextargv(gv, FALSE))
2181 PUSHs(boolSV(do_eof(gv)));
2191 if (MAXARG != 0 && (TOPs || POPs))
2192 PL_last_in_gv = MUTABLE_GV(POPs);
2199 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
2201 return tied_method0(SV_CONST(TELL), SP, MUTABLE_SV(io), mg);
2206 SETERRNO(EBADF,RMS_IFI);
2211 #if LSEEKSIZE > IVSIZE
2212 PUSHn( do_tell(gv) );
2214 PUSHi( do_tell(gv) );
2220 /* also used for: pp_seek() */
2225 const int whence = POPi;
2226 #if LSEEKSIZE > IVSIZE
2227 const Off_t offset = (Off_t)SvNVx(POPs);
2229 const Off_t offset = (Off_t)SvIVx(POPs);
2232 GV * const gv = PL_last_in_gv = MUTABLE_GV(POPs);
2233 IO *const io = GvIO(gv);
2236 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
2238 #if LSEEKSIZE > IVSIZE
2239 SV *const offset_sv = newSVnv((NV) offset);
2241 SV *const offset_sv = newSViv(offset);
2244 return tied_method2(SV_CONST(SEEK), SP, MUTABLE_SV(io), mg, offset_sv,
2249 if (PL_op->op_type == OP_SEEK)
2250 PUSHs(boolSV(do_seek(gv, offset, whence)));
2252 const Off_t sought = do_sysseek(gv, offset, whence);
2254 PUSHs(&PL_sv_undef);
2256 SV* const sv = sought ?
2257 #if LSEEKSIZE > IVSIZE
2262 : newSVpvn(zero_but_true, ZBTLEN);
2272 /* There seems to be no consensus on the length type of truncate()
2273 * and ftruncate(), both off_t and size_t have supporters. In
2274 * general one would think that when using large files, off_t is
2275 * at least as wide as size_t, so using an off_t should be okay. */
2276 /* XXX Configure probe for the length type of *truncate() needed XXX */
2279 #if Off_t_size > IVSIZE
2284 /* Checking for length < 0 is problematic as the type might or
2285 * might not be signed: if it is not, clever compilers will moan. */
2286 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2289 SV * const sv = POPs;
2294 if (PL_op->op_flags & OPf_SPECIAL
2295 ? (tmpgv = gv_fetchsv(sv, 0, SVt_PVIO), 1)
2296 : !!(tmpgv = MAYBE_DEREF_GV(sv)) ) {
2303 TAINT_PROPER("truncate");
2304 if (!(fp = IoIFP(io))) {
2308 int fd = PerlIO_fileno(fp);
2310 SETERRNO(EBADF,RMS_IFI);
2314 SETERRNO(EINVAL, LIB_INVARG);
2319 if (ftruncate(fd, len) < 0)
2321 if (my_chsize(fd, len) < 0)
2329 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2330 io = MUTABLE_IO(SvRV(sv)); /* *main::FRED{IO} for example */
2331 goto do_ftruncate_io;
2334 const char * const name = SvPV_nomg_const_nolen(sv);
2335 TAINT_PROPER("truncate");
2337 if (truncate(name, len) < 0)
2344 #if defined(USE_64_BIT_RAWIO) && defined(O_LARGEFILE)
2345 mode |= O_LARGEFILE; /* Transparently largefiley. */
2348 /* On open(), the Win32 CRT tries to seek around text
2349 * files using 32-bit offsets, which causes the open()
2350 * to fail on large files, so open in binary mode.
2354 tmpfd = PerlLIO_open(name, mode);
2359 if (my_chsize(tmpfd, len) < 0)
2361 PerlLIO_close(tmpfd);
2370 SETERRNO(EBADF,RMS_IFI);
2376 /* also used for: pp_fcntl() */
2381 SV * const argsv = POPs;
2382 const unsigned int func = POPu;
2384 GV * const gv = MUTABLE_GV(POPs);
2385 IO * const io = GvIOn(gv);
2391 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2395 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2398 s = SvPV_force(argsv, len);
2399 need = IOCPARM_LEN(func);
2401 s = Sv_Grow(argsv, need + 1);
2402 SvCUR_set(argsv, need);
2405 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2408 retval = SvIV(argsv);
2409 s = INT2PTR(char*,retval); /* ouch */
2412 optype = PL_op->op_type;
2413 TAINT_PROPER(PL_op_desc[optype]);
2415 if (optype == OP_IOCTL)
2417 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2419 DIE(aTHX_ "ioctl is not implemented");
2423 DIE(aTHX_ "fcntl is not implemented");
2425 #if defined(OS2) && defined(__EMX__)
2426 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2428 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2432 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2434 if (s[SvCUR(argsv)] != 17)
2435 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2437 s[SvCUR(argsv)] = 0; /* put our null back */
2438 SvSETMAGIC(argsv); /* Assume it has changed */
2447 PUSHp(zero_but_true, ZBTLEN);
2458 const int argtype = POPi;
2459 GV * const gv = MUTABLE_GV(POPs);
2460 IO *const io = GvIO(gv);
2461 PerlIO *const fp = io ? IoIFP(io) : NULL;
2463 /* XXX Looks to me like io is always NULL at this point */
2465 (void)PerlIO_flush(fp);
2466 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2471 SETERRNO(EBADF,RMS_IFI);
2476 DIE(aTHX_ PL_no_func, "flock");
2487 const int protocol = POPi;
2488 const int type = POPi;
2489 const int domain = POPi;
2490 GV * const gv = MUTABLE_GV(POPs);
2491 IO * const io = GvIOn(gv);
2495 do_close(gv, FALSE);
2497 TAINT_PROPER("socket");
2498 fd = PerlSock_socket(domain, type, protocol);
2502 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2503 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2504 IoTYPE(io) = IoTYPE_SOCKET;
2505 if (!IoIFP(io) || !IoOFP(io)) {
2506 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2507 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2508 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2511 #if defined(HAS_FCNTL) && defined(F_SETFD) && defined(FD_CLOEXEC)
2512 /* ensure close-on-exec */
2513 if (fd > PL_maxsysfd && fcntl(fd, F_SETFD, FD_CLOEXEC) < 0)
2523 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2526 const int protocol = POPi;
2527 const int type = POPi;
2528 const int domain = POPi;
2530 GV * const gv2 = MUTABLE_GV(POPs);
2531 IO * const io2 = GvIOn(gv2);
2532 GV * const gv1 = MUTABLE_GV(POPs);
2533 IO * const io1 = GvIOn(gv1);
2536 do_close(gv1, FALSE);
2538 do_close(gv2, FALSE);
2540 TAINT_PROPER("socketpair");
2541 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2543 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2544 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2545 IoTYPE(io1) = IoTYPE_SOCKET;
2546 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2547 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2548 IoTYPE(io2) = IoTYPE_SOCKET;
2549 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2550 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2551 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2552 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2553 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2554 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2555 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2558 #if defined(HAS_FCNTL) && defined(F_SETFD) && defined(FD_CLOEXEC)
2559 /* ensure close-on-exec */
2560 if ((fd[0] > PL_maxsysfd && fcntl(fd[0], F_SETFD, FD_CLOEXEC) < 0) ||
2561 (fd[1] > PL_maxsysfd && fcntl(fd[1], F_SETFD, FD_CLOEXEC) < 0))
2567 DIE(aTHX_ PL_no_sock_func, "socketpair");
2573 /* also used for: pp_connect() */
2578 SV * const addrsv = POPs;
2579 /* OK, so on what platform does bind modify addr? */
2581 GV * const gv = MUTABLE_GV(POPs);
2582 IO * const io = GvIOn(gv);
2589 fd = PerlIO_fileno(IoIFP(io));
2593 addr = SvPV_const(addrsv, len);
2594 op_type = PL_op->op_type;
2595 TAINT_PROPER(PL_op_desc[op_type]);
2596 if ((op_type == OP_BIND
2597 ? PerlSock_bind(fd, (struct sockaddr *)addr, len)
2598 : PerlSock_connect(fd, (struct sockaddr *)addr, len))
2606 SETERRNO(EBADF,SS_IVCHAN);
2613 const int backlog = POPi;
2614 GV * const gv = MUTABLE_GV(POPs);
2615 IO * const io = GvIOn(gv);
2620 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2627 SETERRNO(EBADF,SS_IVCHAN);
2635 char namebuf[MAXPATHLEN];
2636 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(__QNXNTO__)
2637 Sock_size_t len = sizeof (struct sockaddr_in);
2639 Sock_size_t len = sizeof namebuf;
2641 GV * const ggv = MUTABLE_GV(POPs);
2642 GV * const ngv = MUTABLE_GV(POPs);
2645 IO * const gstio = GvIO(ggv);
2646 if (!gstio || !IoIFP(gstio))
2650 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2653 /* Some platforms indicate zero length when an AF_UNIX client is
2654 * not bound. Simulate a non-zero-length sockaddr structure in
2656 namebuf[0] = 0; /* sun_len */
2657 namebuf[1] = AF_UNIX; /* sun_family */
2665 do_close(ngv, FALSE);
2666 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2667 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2668 IoTYPE(nstio) = IoTYPE_SOCKET;
2669 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2670 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2671 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2672 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2675 #if defined(HAS_FCNTL) && defined(F_SETFD) && defined(FD_CLOEXEC)
2676 /* ensure close-on-exec */
2677 if (fd > PL_maxsysfd && fcntl(fd, F_SETFD, FD_CLOEXEC) < 0)
2681 #ifdef __SCO_VERSION__
2682 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2685 PUSHp(namebuf, len);
2689 report_evil_fh(ggv);
2690 SETERRNO(EBADF,SS_IVCHAN);
2700 const int how = POPi;
2701 GV * const gv = MUTABLE_GV(POPs);
2702 IO * const io = GvIOn(gv);
2707 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2712 SETERRNO(EBADF,SS_IVCHAN);
2717 /* also used for: pp_gsockopt() */
2722 const int optype = PL_op->op_type;
2723 SV * const sv = (optype == OP_GSOCKOPT) ? sv_2mortal(newSV(257)) : POPs;
2724 const unsigned int optname = (unsigned int) POPi;
2725 const unsigned int lvl = (unsigned int) POPi;
2726 GV * const gv = MUTABLE_GV(POPs);
2727 IO * const io = GvIOn(gv);
2734 fd = PerlIO_fileno(IoIFP(io));
2740 (void)SvPOK_only(sv);
2744 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2747 /* XXX Configure test: does getsockopt set the length properly? */
2756 #if defined(__SYMBIAN32__)
2757 # define SETSOCKOPT_OPTION_VALUE_T void *
2759 # define SETSOCKOPT_OPTION_VALUE_T const char *
2761 /* XXX TODO: We need to have a proper type (a Configure probe,
2762 * etc.) for what the C headers think of the third argument of
2763 * setsockopt(), the option_value read-only buffer: is it
2764 * a "char *", or a "void *", const or not. Some compilers
2765 * don't take kindly to e.g. assuming that "char *" implicitly
2766 * promotes to a "void *", or to explicitly promoting/demoting
2767 * consts to non/vice versa. The "const void *" is the SUS
2768 * definition, but that does not fly everywhere for the above
2770 SETSOCKOPT_OPTION_VALUE_T buf;
2774 buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
2778 aint = (int)SvIV(sv);
2779 buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
2782 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2792 SETERRNO(EBADF,SS_IVCHAN);
2799 /* also used for: pp_getsockname() */
2804 const int optype = PL_op->op_type;
2805 GV * const gv = MUTABLE_GV(POPs);
2806 IO * const io = GvIOn(gv);
2814 sv = sv_2mortal(newSV(257));
2815 (void)SvPOK_only(sv);
2819 fd = PerlIO_fileno(IoIFP(io));
2823 case OP_GETSOCKNAME:
2824 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2827 case OP_GETPEERNAME:
2828 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2830 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2832 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";
2833 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2834 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2835 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
2836 sizeof(u_short) + sizeof(struct in_addr))) {
2843 #ifdef BOGUS_GETNAME_RETURN
2844 /* Interactive Unix, getpeername() and getsockname()
2845 does not return valid namelen */
2846 if (len == BOGUS_GETNAME_RETURN)
2847 len = sizeof(struct sockaddr);
2856 SETERRNO(EBADF,SS_IVCHAN);
2865 /* also used for: pp_lstat() */
2876 if (PL_op->op_flags & OPf_REF ? (gv = cGVOP_gv, 1)
2877 : !!(sv=POPs, gv = MAYBE_DEREF_GV(sv))) {
2878 if (PL_op->op_type == OP_LSTAT) {
2879 if (gv != PL_defgv) {
2880 do_fstat_warning_check:
2881 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
2882 "lstat() on filehandle%s%"SVf,
2885 ? sv_2mortal(newSVhek(GvENAME_HEK(gv)))
2887 } else if (PL_laststype != OP_LSTAT)
2888 /* diag_listed_as: The stat preceding %s wasn't an lstat */
2889 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2892 if (gv != PL_defgv) {
2896 PL_laststype = OP_STAT;
2897 PL_statgv = gv ? gv : (GV *)io;
2898 sv_setpvs(PL_statname, "");
2904 int fd = PerlIO_fileno(IoIFP(io));
2906 PL_laststatval = -1;
2907 SETERRNO(EBADF,RMS_IFI);
2909 PL_laststatval = PerlLIO_fstat(fd, &PL_statcache);
2912 } else if (IoDIRP(io)) {
2914 PerlLIO_fstat(my_dirfd(IoDIRP(io)), &PL_statcache);
2917 PL_laststatval = -1;
2920 else PL_laststatval = -1;
2921 if (PL_laststatval < 0 && !havefp) report_evil_fh(gv);
2924 if (PL_laststatval < 0) {
2930 if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2931 io = MUTABLE_IO(SvRV(sv));
2932 if (PL_op->op_type == OP_LSTAT)
2933 goto do_fstat_warning_check;
2934 goto do_fstat_have_io;
2937 SvTAINTED_off(PL_statname); /* previous tainting irrelevant */
2938 sv_setpv(PL_statname, SvPV_nomg_const_nolen(sv));
2940 PL_laststype = PL_op->op_type;
2941 file = SvPV_nolen_const(PL_statname);
2942 if (PL_op->op_type == OP_LSTAT)
2943 PL_laststatval = PerlLIO_lstat(file, &PL_statcache);
2945 PL_laststatval = PerlLIO_stat(file, &PL_statcache);
2946 if (PL_laststatval < 0) {
2947 if (ckWARN(WARN_NEWLINE) && should_warn_nl(file)) {
2948 /* PL_warn_nl is constant */
2949 GCC_DIAG_IGNORE(-Wformat-nonliteral);
2950 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2958 if (gimme != G_ARRAY) {
2959 if (gimme != G_VOID)
2960 XPUSHs(boolSV(max));
2966 mPUSHi(PL_statcache.st_dev);
2967 #if ST_INO_SIZE > IVSIZE
2968 mPUSHn(PL_statcache.st_ino);
2970 # if ST_INO_SIGN <= 0
2971 mPUSHi(PL_statcache.st_ino);
2973 mPUSHu(PL_statcache.st_ino);
2976 mPUSHu(PL_statcache.st_mode);
2977 mPUSHu(PL_statcache.st_nlink);
2979 sv_setuid(PUSHmortal, PL_statcache.st_uid);
2980 sv_setgid(PUSHmortal, PL_statcache.st_gid);
2982 #ifdef USE_STAT_RDEV
2983 mPUSHi(PL_statcache.st_rdev);
2985 PUSHs(newSVpvs_flags("", SVs_TEMP));
2987 #if Off_t_size > IVSIZE
2988 mPUSHn(PL_statcache.st_size);
2990 mPUSHi(PL_statcache.st_size);
2993 mPUSHn(PL_statcache.st_atime);
2994 mPUSHn(PL_statcache.st_mtime);
2995 mPUSHn(PL_statcache.st_ctime);
2997 mPUSHi(PL_statcache.st_atime);
2998 mPUSHi(PL_statcache.st_mtime);
2999 mPUSHi(PL_statcache.st_ctime);
3001 #ifdef USE_STAT_BLOCKS
3002 mPUSHu(PL_statcache.st_blksize);
3003 mPUSHu(PL_statcache.st_blocks);
3005 PUSHs(newSVpvs_flags("", SVs_TEMP));
3006 PUSHs(newSVpvs_flags("", SVs_TEMP));
3012 /* All filetest ops avoid manipulating the perl stack pointer in their main
3013 bodies (since commit d2c4d2d1e22d3125), and return using either
3014 S_ft_return_false() or S_ft_return_true(). These two helper functions are
3015 the only two which manipulate the perl stack. To ensure that no stack
3016 manipulation macros are used, the filetest ops avoid defining a local copy
3017 of the stack pointer with dSP. */
3019 /* If the next filetest is stacked up with this one
3020 (PL_op->op_private & OPpFT_STACKING), we leave
3021 the original argument on the stack for success,
3022 and skip the stacked operators on failure.
3023 The next few macros/functions take care of this.
3027 S_ft_return_false(pTHX_ SV *ret) {
3031 if (PL_op->op_flags & OPf_REF) XPUSHs(ret);
3035 if (PL_op->op_private & OPpFT_STACKING) {
3036 while (OP_IS_FILETEST(next->op_type)
3037 && next->op_private & OPpFT_STACKED)
3038 next = next->op_next;
3043 PERL_STATIC_INLINE OP *
3044 S_ft_return_true(pTHX_ SV *ret) {
3046 if (PL_op->op_flags & OPf_REF)
3047 XPUSHs(PL_op->op_private & OPpFT_STACKING ? (SV *)cGVOP_gv : (ret));
3048 else if (!(PL_op->op_private & OPpFT_STACKING))
3054 #define FT_RETURNNO return S_ft_return_false(aTHX_ &PL_sv_no)
3055 #define FT_RETURNUNDEF return S_ft_return_false(aTHX_ &PL_sv_undef)
3056 #define FT_RETURNYES return S_ft_return_true(aTHX_ &PL_sv_yes)
3058 #define tryAMAGICftest_MG(chr) STMT_START { \
3059 if ( (SvFLAGS(*PL_stack_sp) & (SVf_ROK|SVs_GMG)) \
3060 && PL_op->op_flags & OPf_KIDS) { \
3061 OP *next = S_try_amagic_ftest(aTHX_ chr); \
3062 if (next) return next; \
3067 S_try_amagic_ftest(pTHX_ char chr) {
3068 SV *const arg = *PL_stack_sp;
3071 if (!(PL_op->op_private & OPpFT_STACKING)) SvGETMAGIC(arg);
3075 const char tmpchr = chr;
3076 SV * const tmpsv = amagic_call(arg,
3077 newSVpvn_flags(&tmpchr, 1, SVs_TEMP),
3078 ftest_amg, AMGf_unary);
3083 return SvTRUE(tmpsv)
3084 ? S_ft_return_true(aTHX_ tmpsv) : S_ft_return_false(aTHX_ tmpsv);
3090 /* also used for: pp_fteexec() pp_fteread() pp_ftewrite() pp_ftrexec()
3096 /* Not const, because things tweak this below. Not bool, because there's
3097 no guarantee that OPpFT_ACCESS is <= CHAR_MAX */
3098 #if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
3099 I32 use_access = PL_op->op_private & OPpFT_ACCESS;
3100 /* Giving some sort of initial value silences compilers. */
3102 int access_mode = R_OK;
3104 int access_mode = 0;
3107 /* access_mode is never used, but leaving use_access in makes the
3108 conditional compiling below much clearer. */
3111 Mode_t stat_mode = S_IRUSR;
3113 bool effective = FALSE;
3116 switch (PL_op->op_type) {
3117 case OP_FTRREAD: opchar = 'R'; break;
3118 case OP_FTRWRITE: opchar = 'W'; break;
3119 case OP_FTREXEC: opchar = 'X'; break;
3120 case OP_FTEREAD: opchar = 'r'; break;
3121 case OP_FTEWRITE: opchar = 'w'; break;
3122 case OP_FTEEXEC: opchar = 'x'; break;
3124 tryAMAGICftest_MG(opchar);
3126 switch (PL_op->op_type) {
3128 #if !(defined(HAS_ACCESS) && defined(R_OK))
3134 #if defined(HAS_ACCESS) && defined(W_OK)
3139 stat_mode = S_IWUSR;
3143 #if defined(HAS_ACCESS) && defined(X_OK)
3148 stat_mode = S_IXUSR;
3152 #ifdef PERL_EFF_ACCESS
3155 stat_mode = S_IWUSR;
3159 #ifndef PERL_EFF_ACCESS
3166 #ifdef PERL_EFF_ACCESS
3171 stat_mode = S_IXUSR;
3177 #if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
3178 const char *name = SvPV_nolen(*PL_stack_sp);
3180 # ifdef PERL_EFF_ACCESS
3181 result = PERL_EFF_ACCESS(name, access_mode);
3183 DIE(aTHX_ "panic: attempt to call PERL_EFF_ACCESS in %s",
3189 result = access(name, access_mode);
3191 DIE(aTHX_ "panic: attempt to call access() in %s", OP_NAME(PL_op));
3202 result = my_stat_flags(0);
3205 if (cando(stat_mode, effective, &PL_statcache))
3211 /* also used for: pp_ftatime() pp_ftctime() pp_ftmtime() pp_ftsize() */
3216 const int op_type = PL_op->op_type;
3220 case OP_FTIS: opchar = 'e'; break;
3221 case OP_FTSIZE: opchar = 's'; break;
3222 case OP_FTMTIME: opchar = 'M'; break;
3223 case OP_FTCTIME: opchar = 'C'; break;
3224 case OP_FTATIME: opchar = 'A'; break;
3226 tryAMAGICftest_MG(opchar);
3228 result = my_stat_flags(0);
3231 if (op_type == OP_FTIS)
3234 /* You can't dTARGET inside OP_FTIS, because you'll get
3235 "panic: pad_sv po" - the op is not flagged to have a target. */
3239 #if Off_t_size > IVSIZE
3240 sv_setnv(TARG, (NV)PL_statcache.st_size);
3242 sv_setiv(TARG, (IV)PL_statcache.st_size);
3247 ((NV)PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3251 ((NV)PL_basetime - PL_statcache.st_atime) / 86400.0 );
3255 ((NV)PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3259 return SvTRUE_nomg(TARG)
3260 ? S_ft_return_true(aTHX_ TARG) : S_ft_return_false(aTHX_ TARG);
3265 /* also used for: pp_ftblk() pp_ftchr() pp_ftdir() pp_fteowned()
3266 * pp_ftfile() pp_ftpipe() pp_ftsgid() pp_ftsock()
3267 * pp_ftsuid() pp_ftsvtx() pp_ftzero() */
3274 switch (PL_op->op_type) {
3275 case OP_FTROWNED: opchar = 'O'; break;
3276 case OP_FTEOWNED: opchar = 'o'; break;
3277 case OP_FTZERO: opchar = 'z'; break;
3278 case OP_FTSOCK: opchar = 'S'; break;
3279 case OP_FTCHR: opchar = 'c'; break;
3280 case OP_FTBLK: opchar = 'b'; break;
3281 case OP_FTFILE: opchar = 'f'; break;
3282 case OP_FTDIR: opchar = 'd'; break;
3283 case OP_FTPIPE: opchar = 'p'; break;
3284 case OP_FTSUID: opchar = 'u'; break;
3285 case OP_FTSGID: opchar = 'g'; break;
3286 case OP_FTSVTX: opchar = 'k'; break;
3288 tryAMAGICftest_MG(opchar);
3290 /* I believe that all these three are likely to be defined on most every
3291 system these days. */
3293 if(PL_op->op_type == OP_FTSUID) {
3298 if(PL_op->op_type == OP_FTSGID) {
3303 if(PL_op->op_type == OP_FTSVTX) {
3308 result = my_stat_flags(0);
3311 switch (PL_op->op_type) {
3313 if (PL_statcache.st_uid == PerlProc_getuid())
3317 if (PL_statcache.st_uid == PerlProc_geteuid())
3321 if (PL_statcache.st_size == 0)
3325 if (S_ISSOCK(PL_statcache.st_mode))
3329 if (S_ISCHR(PL_statcache.st_mode))
3333 if (S_ISBLK(PL_statcache.st_mode))
3337 if (S_ISREG(PL_statcache.st_mode))
3341 if (S_ISDIR(PL_statcache.st_mode))
3345 if (S_ISFIFO(PL_statcache.st_mode))
3350 if (PL_statcache.st_mode & S_ISUID)
3356 if (PL_statcache.st_mode & S_ISGID)
3362 if (PL_statcache.st_mode & S_ISVTX)
3374 tryAMAGICftest_MG('l');
3375 result = my_lstat_flags(0);
3379 if (S_ISLNK(PL_statcache.st_mode))
3392 tryAMAGICftest_MG('t');
3394 if (PL_op->op_flags & OPf_REF)
3397 SV *tmpsv = *PL_stack_sp;
3398 if (!(gv = MAYBE_DEREF_GV_nomg(tmpsv))) {
3399 name = SvPV_nomg(tmpsv, namelen);
3400 gv = gv_fetchpvn_flags(name, namelen, SvUTF8(tmpsv), SVt_PVIO);
3404 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3405 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3406 else if (name && isDIGIT(*name) && grok_atoUV(name, &uv, NULL) && uv <= PERL_INT_MAX)
3411 SETERRNO(EBADF,RMS_IFI);
3414 if (PerlLIO_isatty(fd))
3420 /* also used for: pp_ftbinary() */
3434 tryAMAGICftest_MG(PL_op->op_type == OP_FTTEXT ? 'T' : 'B');
3436 if (PL_op->op_flags & OPf_REF)
3438 else if ((PL_op->op_private & (OPpFT_STACKED|OPpFT_AFTER_t))
3443 gv = MAYBE_DEREF_GV_nomg(sv);
3447 if (gv == PL_defgv) {
3449 io = SvTYPE(PL_statgv) == SVt_PVIO
3453 goto really_filename;
3458 sv_setpvs(PL_statname, "");
3459 io = GvIO(PL_statgv);
3461 PL_laststatval = -1;
3462 PL_laststype = OP_STAT;
3463 if (io && IoIFP(io)) {
3465 if (! PerlIO_has_base(IoIFP(io)))
3466 DIE(aTHX_ "-T and -B not implemented on filehandles");
3467 fd = PerlIO_fileno(IoIFP(io));
3469 SETERRNO(EBADF,RMS_IFI);
3472 PL_laststatval = PerlLIO_fstat(fd, &PL_statcache);
3473 if (PL_laststatval < 0)
3475 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3476 if (PL_op->op_type == OP_FTTEXT)
3481 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3482 i = PerlIO_getc(IoIFP(io));
3484 (void)PerlIO_ungetc(IoIFP(io),i);
3486 /* null file is anything */
3489 len = PerlIO_get_bufsiz(IoIFP(io));
3490 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3491 /* sfio can have large buffers - limit to 512 */
3496 SETERRNO(EBADF,RMS_IFI);
3498 SETERRNO(EBADF,RMS_IFI);
3507 sv_setpv(PL_statname, SvPV_nomg_const_nolen(sv));
3509 file = SvPVX_const(PL_statname);
3511 if (!(fp = PerlIO_open(file, "r"))) {
3513 PL_laststatval = -1;
3514 PL_laststype = OP_STAT;
3516 if (ckWARN(WARN_NEWLINE) && should_warn_nl(file)) {
3517 /* PL_warn_nl is constant */
3518 GCC_DIAG_IGNORE(-Wformat-nonliteral);
3519 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3524 PL_laststype = OP_STAT;
3525 fd = PerlIO_fileno(fp);
3527 (void)PerlIO_close(fp);
3528 SETERRNO(EBADF,RMS_IFI);
3531 PL_laststatval = PerlLIO_fstat(fd, &PL_statcache);
3532 if (PL_laststatval < 0) {
3534 (void)PerlIO_close(fp);
3538 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, NULL);
3539 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3540 (void)PerlIO_close(fp);
3542 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3543 FT_RETURNNO; /* special case NFS directories */
3544 FT_RETURNYES; /* null file is anything */
3549 /* now scan s to look for textiness */
3551 #if defined(DOSISH) || defined(USEMYBINMODE)
3552 /* ignore trailing ^Z on short files */
3553 if (len && len < (I32)sizeof(tbuf) && tbuf[len-1] == 26)
3558 if (! is_utf8_invariant_string((U8 *) s, len)) {
3560 /* Here contains a variant under UTF-8 . See if the entire string is
3562 if (is_utf8_fixed_width_buf_flags((U8 *) s, len, 0)) {
3563 if (PL_op->op_type == OP_FTTEXT) {
3572 /* Here, is not UTF-8 or is entirely ASCII. Look through the buffer for
3573 * things that wouldn't be in ASCII text or rich ASCII text. Count these
3575 for (i = 0; i < len; i++, s++) {
3576 if (!*s) { /* null never allowed in text */
3580 #ifdef USE_LOCALE_CTYPE
3581 if (IN_LC_RUNTIME(LC_CTYPE)) {
3582 if ( isPRINT_LC(*s) || isSPACE_LC(*s)) {
3589 /* VT occurs so rarely in text, that we consider it odd */
3590 || (isSPACE_A(*s) && *s != VT_NATIVE)
3592 /* But there is a fair amount of backspaces and escapes in
3595 || *s == ESC_NATIVE)
3602 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3613 const char *tmps = NULL;
3617 SV * const sv = POPs;
3618 if (PL_op->op_flags & OPf_SPECIAL) {
3619 gv = gv_fetchsv(sv, 0, SVt_PVIO);
3621 if (ckWARN(WARN_UNOPENED)) {
3622 Perl_warner(aTHX_ packWARN(WARN_UNOPENED),
3623 "chdir() on unopened filehandle %" SVf, sv);
3625 SETERRNO(EBADF,RMS_IFI);
3627 TAINT_PROPER("chdir");
3631 else if (!(gv = MAYBE_DEREF_GV(sv)))
3632 tmps = SvPV_nomg_const_nolen(sv);
3635 HV * const table = GvHVn(PL_envgv);
3638 if ( (svp = hv_fetchs(table, "HOME", FALSE))
3639 || (svp = hv_fetchs(table, "LOGDIR", FALSE))
3641 || (svp = hv_fetchs(table, "SYS$LOGIN", FALSE))
3645 tmps = SvPV_nolen_const(*svp);
3649 SETERRNO(EINVAL, LIB_INVARG);
3650 TAINT_PROPER("chdir");
3655 TAINT_PROPER("chdir");
3658 IO* const io = GvIO(gv);
3661 PUSHi(fchdir(my_dirfd(IoDIRP(io))) >= 0);
3662 } else if (IoIFP(io)) {
3663 int fd = PerlIO_fileno(IoIFP(io));
3667 PUSHi(fchdir(fd) >= 0);
3677 DIE(aTHX_ PL_no_func, "fchdir");
3681 PUSHi( PerlDir_chdir(tmps) >= 0 );
3683 /* Clear the DEFAULT element of ENV so we'll get the new value
3685 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3692 SETERRNO(EBADF,RMS_IFI);
3699 /* also used for: pp_chmod() pp_kill() pp_unlink() pp_utime() */
3703 dSP; dMARK; dTARGET;
3704 const I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3715 char * const tmps = POPpx;
3716 TAINT_PROPER("chroot");
3717 PUSHi( chroot(tmps) >= 0 );
3720 DIE(aTHX_ PL_no_func, "chroot");
3731 const char * const tmps2 = POPpconstx;
3732 const char * const tmps = SvPV_nolen_const(TOPs);
3733 TAINT_PROPER("rename");
3735 anum = PerlLIO_rename(tmps, tmps2);
3737 if (!(anum = PerlLIO_stat(tmps, &statbuf))) {
3738 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3741 if (PerlProc_geteuid() || PerlLIO_stat(tmps2, &statbuf) < 0 || !S_ISDIR(statbuf.st_mode))
3742 (void)UNLINK(tmps2);
3743 if (!(anum = link(tmps, tmps2)))
3744 anum = UNLINK(tmps);
3753 /* also used for: pp_symlink() */
3755 #if defined(HAS_LINK) || defined(HAS_SYMLINK)
3759 const int op_type = PL_op->op_type;
3763 if (op_type == OP_LINK)
3764 DIE(aTHX_ PL_no_func, "link");
3766 # ifndef HAS_SYMLINK
3767 if (op_type == OP_SYMLINK)
3768 DIE(aTHX_ PL_no_func, "symlink");
3772 const char * const tmps2 = POPpconstx;
3773 const char * const tmps = SvPV_nolen_const(TOPs);
3774 TAINT_PROPER(PL_op_desc[op_type]);
3776 # if defined(HAS_LINK)
3777 # if defined(HAS_SYMLINK)
3778 /* Both present - need to choose which. */
3779 (op_type == OP_LINK) ?
3780 PerlLIO_link(tmps, tmps2) : symlink(tmps, tmps2);
3782 /* Only have link, so calls to pp_symlink will have DIE()d above. */
3783 PerlLIO_link(tmps, tmps2);
3786 # if defined(HAS_SYMLINK)
3787 /* Only have symlink, so calls to pp_link will have DIE()d above. */
3788 symlink(tmps, tmps2);
3793 SETi( result >= 0 );
3798 /* also used for: pp_symlink() */
3803 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
3813 char buf[MAXPATHLEN];
3818 /* NOTE: if the length returned by readlink() is sizeof(buf) - 1,
3819 * it is impossible to know whether the result was truncated. */
3820 len = readlink(tmps, buf, sizeof(buf) - 1);
3829 RETSETUNDEF; /* just pretend it's a normal file */
3833 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3835 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3837 char * const save_filename = filename;
3842 Size_t size = strlen(cmd) + (strlen(filename) * 2) + 10;
3844 PERL_ARGS_ASSERT_DOONELINER;
3846 Newx(cmdline, size, char);
3847 my_strlcpy(cmdline, cmd, size);
3848 my_strlcat(cmdline, " ", size);
3849 for (s = cmdline + strlen(cmdline); *filename; ) {
3853 if (s - cmdline < size)
3854 my_strlcpy(s, " 2>&1", size - (s - cmdline));
3855 myfp = PerlProc_popen(cmdline, "r");
3859 SV * const tmpsv = sv_newmortal();
3860 /* Need to save/restore 'PL_rs' ?? */
3861 s = sv_gets(tmpsv, myfp, 0);
3862 (void)PerlProc_pclose(myfp);
3866 #ifdef HAS_SYS_ERRLIST
3871 /* you don't see this */
3872 const char * const errmsg = Strerror(e) ;
3875 if (instr(s, errmsg)) {
3882 #define EACCES EPERM
3884 if (instr(s, "cannot make"))
3885 SETERRNO(EEXIST,RMS_FEX);
3886 else if (instr(s, "existing file"))
3887 SETERRNO(EEXIST,RMS_FEX);
3888 else if (instr(s, "ile exists"))
3889 SETERRNO(EEXIST,RMS_FEX);
3890 else if (instr(s, "non-exist"))
3891 SETERRNO(ENOENT,RMS_FNF);
3892 else if (instr(s, "does not exist"))
3893 SETERRNO(ENOENT,RMS_FNF);
3894 else if (instr(s, "not empty"))
3895 SETERRNO(EBUSY,SS_DEVOFFLINE);
3896 else if (instr(s, "cannot access"))
3897 SETERRNO(EACCES,RMS_PRV);
3899 SETERRNO(EPERM,RMS_PRV);
3902 else { /* some mkdirs return no failure indication */
3904 anum = (PerlLIO_stat(save_filename, &statbuf) >= 0);
3905 if (PL_op->op_type == OP_RMDIR)
3910 SETERRNO(EACCES,RMS_PRV); /* a guess */
3919 /* This macro removes trailing slashes from a directory name.
3920 * Different operating and file systems take differently to
3921 * trailing slashes. According to POSIX 1003.1 1996 Edition
3922 * any number of trailing slashes should be allowed.
3923 * Thusly we snip them away so that even non-conforming
3924 * systems are happy.
3925 * We should probably do this "filtering" for all
3926 * the functions that expect (potentially) directory names:
3927 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3928 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3930 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3931 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3934 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3935 (tmps) = savepvn((tmps), (len)); \
3945 const unsigned int mode = (MAXARG > 1 && (TOPs||((void)POPs,0))) ? POPu : 0777;
3947 TRIMSLASHES(tmps,len,copy);
3949 TAINT_PROPER("mkdir");
3951 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3955 SETi( dooneliner("mkdir", tmps) );
3956 oldumask = PerlLIO_umask(0);
3957 PerlLIO_umask(oldumask);
3958 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3973 TRIMSLASHES(tmps,len,copy);
3974 TAINT_PROPER("rmdir");
3976 SETi( PerlDir_rmdir(tmps) >= 0 );
3978 SETi( dooneliner("rmdir", tmps) );
3985 /* Directory calls. */
3989 #if defined(Direntry_t) && defined(HAS_READDIR)
3991 const char * const dirname = POPpconstx;
3992 GV * const gv = MUTABLE_GV(POPs);
3993 IO * const io = GvIOn(gv);
3995 if ((IoIFP(io) || IoOFP(io)))
3996 Perl_ck_warner_d(aTHX_ packWARN2(WARN_IO, WARN_DEPRECATED),
3997 "Opening filehandle %"HEKf" also as a directory",
3998 HEKfARG(GvENAME_HEK(gv)) );
4000 PerlDir_close(IoDIRP(io));
4001 if (!(IoDIRP(io) = PerlDir_open(dirname)))
4007 SETERRNO(EBADF,RMS_DIR);
4010 DIE(aTHX_ PL_no_dir_func, "opendir");
4016 #if !defined(Direntry_t) || !defined(HAS_READDIR)
4017 DIE(aTHX_ PL_no_dir_func, "readdir");
4019 #if !defined(I_DIRENT) && !defined(VMS)
4020 Direntry_t *readdir (DIR *);
4025 const U8 gimme = GIMME_V;
4026 GV * const gv = MUTABLE_GV(POPs);
4027 const Direntry_t *dp;
4028 IO * const io = GvIOn(gv);
4031 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
4032 "readdir() attempted on invalid dirhandle %"HEKf,
4033 HEKfARG(GvENAME_HEK(gv)));
4038 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
4042 sv = newSVpvn(dp->d_name, dp->d_namlen);
4044 sv = newSVpv(dp->d_name, 0);
4046 if (!(IoFLAGS(io) & IOf_UNTAINT))
4049 } while (gimme == G_ARRAY);
4051 if (!dp && gimme != G_ARRAY)
4058 SETERRNO(EBADF,RMS_ISI);
4059 if (gimme == G_ARRAY)
4068 #if defined(HAS_TELLDIR) || defined(telldir)
4070 /* XXX does _anyone_ need this? --AD 2/20/1998 */
4071 /* XXX netbsd still seemed to.
4072 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
4073 --JHI 1999-Feb-02 */
4074 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
4075 long telldir (DIR *);
4077 GV * const gv = MUTABLE_GV(POPs);
4078 IO * const io = GvIOn(gv);
4081 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
4082 "telldir() attempted on invalid dirhandle %"HEKf,
4083 HEKfARG(GvENAME_HEK(gv)));
4087 PUSHi( PerlDir_tell(IoDIRP(io)) );
4091 SETERRNO(EBADF,RMS_ISI);
4094 DIE(aTHX_ PL_no_dir_func, "telldir");
4100 #if defined(HAS_SEEKDIR) || defined(seekdir)
4102 const long along = POPl;
4103 GV * const gv = MUTABLE_GV(POPs);
4104 IO * const io = GvIOn(gv);
4107 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
4108 "seekdir() attempted on invalid dirhandle %"HEKf,
4109 HEKfARG(GvENAME_HEK(gv)));
4112 (void)PerlDir_seek(IoDIRP(io), along);
4117 SETERRNO(EBADF,RMS_ISI);
4120 DIE(aTHX_ PL_no_dir_func, "seekdir");
4126 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4128 GV * const gv = MUTABLE_GV(POPs);
4129 IO * const io = GvIOn(gv);
4132 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
4133 "rewinddir() attempted on invalid dirhandle %"HEKf,
4134 HEKfARG(GvENAME_HEK(gv)));
4137 (void)PerlDir_rewind(IoDIRP(io));
4141 SETERRNO(EBADF,RMS_ISI);
4144 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4150 #if defined(Direntry_t) && defined(HAS_READDIR)
4152 GV * const gv = MUTABLE_GV(POPs);
4153 IO * const io = GvIOn(gv);
4156 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
4157 "closedir() attempted on invalid dirhandle %"HEKf,
4158 HEKfARG(GvENAME_HEK(gv)));
4161 #ifdef VOID_CLOSEDIR
4162 PerlDir_close(IoDIRP(io));
4164 if (PerlDir_close(IoDIRP(io)) < 0) {
4165 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4174 SETERRNO(EBADF,RMS_IFI);
4177 DIE(aTHX_ PL_no_dir_func, "closedir");
4181 /* Process control. */
4188 #ifdef HAS_SIGPROCMASK
4189 sigset_t oldmask, newmask;
4193 PERL_FLUSHALL_FOR_CHILD;
4194 #ifdef HAS_SIGPROCMASK
4195 sigfillset(&newmask);
4196 sigprocmask(SIG_SETMASK, &newmask, &oldmask);
4198 childpid = PerlProc_fork();
4199 if (childpid == 0) {
4203 for (sig = 1; sig < SIG_SIZE; sig++)
4204 PL_psig_pend[sig] = 0;
4206 #ifdef HAS_SIGPROCMASK
4209 sigprocmask(SIG_SETMASK, &oldmask, NULL);
4216 #ifdef PERL_USES_PL_PIDSTATUS
4217 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4223 # if (defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)) || defined(__amigaos4__)
4228 PERL_FLUSHALL_FOR_CHILD;
4229 childpid = PerlProc_fork();
4235 DIE(aTHX_ PL_no_func, "fork");
4242 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(__LIBCATAMOUNT__)
4247 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4248 childpid = wait4pid(-1, &argflags, 0);
4250 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4255 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4256 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4257 STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
4259 STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
4264 DIE(aTHX_ PL_no_func, "wait");
4270 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(__LIBCATAMOUNT__)
4272 const int optype = POPi;
4273 const Pid_t pid = TOPi;
4277 result = amigaos_waitpid(aTHX_ optype, pid, &argflags);
4278 STATUS_NATIVE_CHILD_SET((result >= 0) ? argflags : -1);
4279 result = result == 0 ? pid : -1;
4283 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4284 result = wait4pid(pid, &argflags, optype);
4286 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4291 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4292 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4293 STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
4295 STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
4297 # endif /* __amigaos4__ */
4301 DIE(aTHX_ PL_no_func, "waitpid");
4307 dSP; dMARK; dORIGMARK; dTARGET;
4308 #if defined(__LIBCATAMOUNT__)
4309 PL_statusvalue = -1;
4314 # ifdef __amigaos4__
4322 while (++MARK <= SP) {
4323 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4328 TAINT_PROPER("system");
4330 PERL_FLUSHALL_FOR_CHILD;
4331 #if (defined(HAS_FORK) || defined(__amigaos4__)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4334 struct UserData userdata;
4341 bool child_success = FALSE;
4342 #ifdef HAS_SIGPROCMASK
4343 sigset_t newset, oldset;
4346 if (PerlProc_pipe(pp) >= 0)
4349 amigaos_fork_set_userdata(aTHX_
4355 pthread_create(&proc,NULL,amigaos_system_child,(void *)&userdata);
4356 child_success = proc > 0;
4358 #ifdef HAS_SIGPROCMASK
4359 sigemptyset(&newset);
4360 sigaddset(&newset, SIGCHLD);
4361 sigprocmask(SIG_BLOCK, &newset, &oldset);
4363 while ((childpid = PerlProc_fork()) == -1) {
4364 if (errno != EAGAIN) {
4369 PerlLIO_close(pp[0]);
4370 PerlLIO_close(pp[1]);
4372 #ifdef HAS_SIGPROCMASK
4373 sigprocmask(SIG_SETMASK, &oldset, NULL);
4379 child_success = childpid > 0;
4381 if (child_success) {
4382 Sigsave_t ihand,qhand; /* place to save signals during system() */
4385 #ifndef __amigaos4__
4387 PerlLIO_close(pp[1]);
4390 rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
4391 rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
4394 result = pthread_join(proc, (void **)&status);
4397 result = wait4pid(childpid, &status, 0);
4398 } while (result == -1 && errno == EINTR);
4401 #ifdef HAS_SIGPROCMASK
4402 sigprocmask(SIG_SETMASK, &oldset, NULL);
4404 (void)rsignal_restore(SIGINT, &ihand);
4405 (void)rsignal_restore(SIGQUIT, &qhand);
4407 STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
4408 do_execfree(); /* free any memory child malloced on fork */
4415 while (n < sizeof(int)) {
4416 n1 = PerlLIO_read(pp[0],
4417 (void*)(((char*)&errkid)+n),
4423 PerlLIO_close(pp[0]);
4424 if (n) { /* Error */
4425 if (n != sizeof(int))
4426 DIE(aTHX_ "panic: kid popen errno read, n=%u", n);
4427 errno = errkid; /* Propagate errno from kid */
4429 /* The pipe always has something in it
4430 * so n alone is not enough. */
4434 STATUS_NATIVE_CHILD_SET(-1);
4438 XPUSHi(STATUS_CURRENT);
4441 #ifndef __amigaos4__
4442 #ifdef HAS_SIGPROCMASK
4443 sigprocmask(SIG_SETMASK, &oldset, NULL);
4446 PerlLIO_close(pp[0]);
4447 #if defined(HAS_FCNTL) && defined(F_SETFD) && defined(FD_CLOEXEC)
4448 if (fcntl(pp[1], F_SETFD, FD_CLOEXEC) < 0)
4452 if (PL_op->op_flags & OPf_STACKED) {
4453 SV * const really = *++MARK;
4454 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4456 else if (SP - MARK != 1)
4457 value = (I32)do_aexec5(NULL, MARK, SP, pp[1], did_pipes);
4459 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
4461 #endif /* __amigaos4__ */
4464 #else /* ! FORK or VMS or OS/2 */
4467 if (PL_op->op_flags & OPf_STACKED) {
4468 SV * const really = *++MARK;
4469 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__) || defined(__VMS)
4470 value = (I32)do_aspawn(really, MARK, SP);
4472 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4475 else if (SP - MARK != 1) {
4476 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__) || defined(__VMS)
4477 value = (I32)do_aspawn(NULL, MARK, SP);
4479 value = (I32)do_aspawn(NULL, (void **)MARK, (void **)SP);
4483 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4485 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4487 STATUS_NATIVE_CHILD_SET(value);
4490 XPUSHi(result ? value : STATUS_CURRENT);
4491 #endif /* !FORK or VMS or OS/2 */
4498 dSP; dMARK; dORIGMARK; dTARGET;
4503 while (++MARK <= SP) {
4504 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4509 TAINT_PROPER("exec");
4512 PERL_FLUSHALL_FOR_CHILD;
4513 if (PL_op->op_flags & OPf_STACKED) {
4514 SV * const really = *++MARK;
4515 value = (I32)do_aexec(really, MARK, SP);
4517 else if (SP - MARK != 1)
4519 value = (I32)vms_do_aexec(NULL, MARK, SP);
4521 value = (I32)do_aexec(NULL, MARK, SP);
4525 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4527 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4539 XPUSHi( getppid() );
4542 DIE(aTHX_ PL_no_func, "getppid");
4552 (MAXARG < 1) ? 0 : TOPs ? SvIVx(POPs) : ((void)POPs, 0);
4555 pgrp = (I32)BSD_GETPGRP(pid);
4557 if (pid != 0 && pid != PerlProc_getpid())
4558 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4564 DIE(aTHX_ PL_no_func, "getpgrp");
4574 pgrp = MAXARG == 2 && (TOPs||POPs) ? POPi : 0;
4575 if (MAXARG > 0) pid = TOPs ? TOPi : 0;
4582 TAINT_PROPER("setpgrp");
4584 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4586 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4587 || (pid != 0 && pid != PerlProc_getpid()))
4589 DIE(aTHX_ "setpgrp can't take arguments");
4591 SETi( setpgrp() >= 0 );
4592 #endif /* USE_BSDPGRP */
4595 DIE(aTHX_ PL_no_func, "setpgrp");
4599 #if defined(__GLIBC__) && ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3) || (__GLIBC__ > 2))
4600 # define PRIORITY_WHICH_T(which) (__priority_which_t)which
4602 # define PRIORITY_WHICH_T(which) which
4607 #ifdef HAS_GETPRIORITY
4609 const int who = POPi;
4610 const int which = TOPi;
4611 SETi( getpriority(PRIORITY_WHICH_T(which), who) );
4614 DIE(aTHX_ PL_no_func, "getpriority");
4620 #ifdef HAS_SETPRIORITY
4622 const int niceval = POPi;
4623 const int who = POPi;
4624 const int which = TOPi;
4625 TAINT_PROPER("setpriority");
4626 SETi( setpriority(PRIORITY_WHICH_T(which), who, niceval) >= 0 );
4629 DIE(aTHX_ PL_no_func, "setpriority");
4633 #undef PRIORITY_WHICH_T
4641 XPUSHn( time(NULL) );
4643 XPUSHi( time(NULL) );
4652 struct tms timesbuf;
4655 (void)PerlProc_times(×buf);
4657 mPUSHn(((NV)timesbuf.tms_utime)/(NV)PL_clocktick);
4658 if (GIMME_V == G_ARRAY) {
4659 mPUSHn(((NV)timesbuf.tms_stime)/(NV)PL_clocktick);
4660 mPUSHn(((NV)timesbuf.tms_cutime)/(NV)PL_clocktick);
4661 mPUSHn(((NV)timesbuf.tms_cstime)/(NV)PL_clocktick);
4669 if (GIMME_V == G_ARRAY) {
4676 DIE(aTHX_ "times not implemented");
4678 #endif /* HAS_TIMES */
4681 /* The 32 bit int year limits the times we can represent to these
4682 boundaries with a few days wiggle room to account for time zone
4685 /* Sat Jan 3 00:00:00 -2147481748 */
4686 #define TIME_LOWER_BOUND -67768100567755200.0
4687 /* Sun Dec 29 12:00:00 2147483647 */
4688 #define TIME_UPPER_BOUND 67767976233316800.0
4691 /* also used for: pp_localtime() */
4699 const char *opname = PL_op->op_type == OP_LOCALTIME ? "localtime" : "gmtime";
4700 static const char * const dayname[] =
4701 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4702 static const char * const monname[] =
4703 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4704 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4706 if (MAXARG < 1 || (!TOPs && ((void)POPs, 1))) {
4709 when = (Time64_T)now;
4712 NV input = Perl_floor(POPn);
4713 const bool pl_isnan = Perl_isnan(input);
4714 when = (Time64_T)input;
4715 if (UNLIKELY(pl_isnan || when != input)) {
4716 /* diag_listed_as: gmtime(%f) too large */
4717 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
4718 "%s(%.0" NVff ") too large", opname, input);
4726 if ( TIME_LOWER_BOUND > when ) {
4727 /* diag_listed_as: gmtime(%f) too small */
4728 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
4729 "%s(%.0" NVff ") too small", opname, when);
4732 else if( when > TIME_UPPER_BOUND ) {
4733 /* diag_listed_as: gmtime(%f) too small */
4734 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
4735 "%s(%.0" NVff ") too large", opname, when);
4739 if (PL_op->op_type == OP_LOCALTIME)
4740 err = Perl_localtime64_r(&when, &tmbuf);
4742 err = Perl_gmtime64_r(&when, &tmbuf);
4746 /* diag_listed_as: gmtime(%f) failed */
4747 /* XXX %lld broken for quads */
4749 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
4750 "%s(%.0" NVff ") failed", opname, when);
4753 if (GIMME_V != G_ARRAY) { /* scalar context */
4760 Perl_sv_setpvf_mg(aTHX_ TARG, "%s %s %2d %02d:%02d:%02d %"IVdf,
4761 dayname[tmbuf.tm_wday],
4762 monname[tmbuf.tm_mon],
4767 (IV)tmbuf.tm_year + 1900);
4770 else { /* list context */
4776 mPUSHi(tmbuf.tm_sec);
4777 mPUSHi(tmbuf.tm_min);
4778 mPUSHi(tmbuf.tm_hour);
4779 mPUSHi(tmbuf.tm_mday);
4780 mPUSHi(tmbuf.tm_mon);
4781 mPUSHn(tmbuf.tm_year);
4782 mPUSHi(tmbuf.tm_wday);
4783 mPUSHi(tmbuf.tm_yday);
4784 mPUSHi(tmbuf.tm_isdst);
4793 /* alarm() takes an unsigned int number of seconds, and return the
4794 * unsigned int number of seconds remaining in the previous alarm
4795 * (alarms don't stack). Therefore negative return values are not
4799 /* Note that while the C library function alarm() as such has
4800 * no errors defined (or in other words, properly behaving client
4801 * code shouldn't expect any), alarm() being obsoleted by
4802 * setitimer() and often being implemented in terms of
4803 * setitimer(), can fail. */
4804 /* diag_listed_as: %s() with negative argument */
4805 Perl_ck_warner_d(aTHX_ packWARN(WARN_MISC),
4806 "alarm() with negative argument");
4807 SETERRNO(EINVAL, LIB_INVARG);
4811 unsigned int retval = alarm(anum);
4812 if ((int)retval < 0) /* Strictly speaking "cannot happen". */
4818 DIE(aTHX_ PL_no_func, "alarm");
4829 (void)time(&lasttime);
4830 if (MAXARG < 1 || (!TOPs && !POPs))
4835 /* diag_listed_as: %s() with negative argument */
4836 Perl_ck_warner_d(aTHX_ packWARN(WARN_MISC),
4837 "sleep() with negative argument");
4838 SETERRNO(EINVAL, LIB_INVARG);
4842 PerlProc_sleep((unsigned int)duration);
4846 XPUSHi(when - lasttime);
4850 /* Shared memory. */
4851 /* Merged with some message passing. */
4853 /* also used for: pp_msgrcv() pp_msgsnd() pp_semop() pp_shmread() */
4857 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4858 dSP; dMARK; dTARGET;
4859 const int op_type = PL_op->op_type;
4864 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4867 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4870 value = (I32)(do_semop(MARK, SP) >= 0);
4873 value = (I32)(do_shmio(op_type, MARK, SP) >= 0);
4881 return Perl_pp_semget(aTHX);
4887 /* also used for: pp_msgget() pp_shmget() */
4891 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4892 dSP; dMARK; dTARGET;
4893 const int anum = do_ipcget(PL_op->op_type, MARK, SP);
4900 DIE(aTHX_ "System V IPC is not implemented on this machine");
4904 /* also used for: pp_msgctl() pp_shmctl() */
4908 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4909 dSP; dMARK; dTARGET;
4910 const int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4918 PUSHp(zero_but_true, ZBTLEN);
4922 return Perl_pp_semget(aTHX);
4926 /* I can't const this further without getting warnings about the types of
4927 various arrays passed in from structures. */
4929 S_space_join_names_mortal(pTHX_ char *const *array)
4933 if (array && *array) {
4934 target = newSVpvs_flags("", SVs_TEMP);
4936 sv_catpv(target, *array);
4939 sv_catpvs(target, " ");
4942 target = sv_mortalcopy(&PL_sv_no);
4947 /* Get system info. */
4949 /* also used for: pp_ghbyaddr() pp_ghbyname() */
4953 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4955 I32 which = PL_op->op_type;
4958 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4959 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4960 struct hostent *gethostbyname(Netdb_name_t);
4961 struct hostent *gethostent(void);
4963 struct hostent *hent = NULL;
4967 if (which == OP_GHBYNAME) {
4968 #ifdef HAS_GETHOSTBYNAME
4969 const char* const name = POPpbytex;
4970 hent = PerlSock_gethostbyname(name);
4972 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4975 else if (which == OP_GHBYADDR) {
4976 #ifdef HAS_GETHOSTBYADDR
4977 const int addrtype = POPi;
4978 SV * const addrsv = POPs;
4980 const char *addr = (char *)SvPVbyte(addrsv, addrlen);
4982 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4984 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4988 #ifdef HAS_GETHOSTENT
4989 hent = PerlSock_gethostent();
4991 DIE(aTHX_ PL_no_sock_func, "gethostent");
4994 #ifdef HOST_NOT_FOUND
4996 #ifdef USE_REENTRANT_API
4997 # ifdef USE_GETHOSTENT_ERRNO
4998 h_errno = PL_reentrant_buffer->_gethostent_errno;
5001 STATUS_UNIX_SET(h_errno);
5005 if (GIMME_V != G_ARRAY) {
5006 PUSHs(sv = sv_newmortal());
5008 if (which == OP_GHBYNAME) {
5010 sv_setpvn(sv, hent->h_addr, hent->h_length);
5013 sv_setpv(sv, (char*)hent->h_name);
5019 mPUSHs(newSVpv((char*)hent->h_name, 0));
5020 PUSHs(space_join_names_mortal(hent->h_aliases));
5021 mPUSHi(hent->h_addrtype);
5022 len = hent->h_length;
5025 for (elem = hent->h_addr_list; elem && *elem; elem++) {
5026 mXPUSHp(*elem, len);
5030 mPUSHp(hent->h_addr, len);
5032 PUSHs(sv_mortalcopy(&PL_sv_no));
5037 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
5041 /* also used for: pp_gnbyaddr() pp_gnbyname() */
5045 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
5047 I32 which = PL_op->op_type;
5049 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
5050 struct netent *getnetbyaddr(Netdb_net_t, int);
5051 struct netent *getnetbyname(Netdb_name_t);
5052 struct netent *getnetent(void);
5054 struct netent *nent;
5056 if (which == OP_GNBYNAME){
5057 #ifdef HAS_GETNETBYNAME
5058 const char * const name = POPpbytex;
5059 nent = PerlSock_getnetbyname(name);
5061 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
5064 else if (which == OP_GNBYADDR) {
5065 #ifdef HAS_GETNETBYADDR
5066 const int addrtype = POPi;
5067 const Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
5068 nent = PerlSock_getnetbyaddr(addr, addrtype);
5070 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
5074 #ifdef HAS_GETNETENT
5075 nent = PerlSock_getnetent();
5077 DIE(aTHX_ PL_no_sock_func, "getnetent");
5080 #ifdef HOST_NOT_FOUND
5082 #ifdef USE_REENTRANT_API
5083 # ifdef USE_GETNETENT_ERRNO
5084 h_errno = PL_reentrant_buffer->_getnetent_errno;
5087 STATUS_UNIX_SET(h_errno);
5092 if (GIMME_V != G_ARRAY) {
5093 PUSHs(sv = sv_newmortal());
5095 if (which == OP_GNBYNAME)
5096 sv_setiv(sv, (IV)nent->n_net);
5098 sv_setpv(sv, nent->n_name);
5104 mPUSHs(newSVpv(nent->n_name, 0));
5105 PUSHs(space_join_names_mortal(nent->n_aliases));
5106 mPUSHi(nent->n_addrtype);
5107 mPUSHi(nent->n_net);
5112 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
5117 /* also used for: pp_gpbyname() pp_gpbynumber() */
5121 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
5123 I32 which = PL_op->op_type;
5125 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
5126 struct protoent *getprotobyname(Netdb_name_t);
5127 struct protoent *getprotobynumber(int);
5128 struct protoent *getprotoent(void);
5130 struct protoent *pent;
5132 if (which == OP_GPBYNAME) {
5133 #ifdef HAS_GETPROTOBYNAME
5134 const char* const name = POPpbytex;
5135 pent = PerlSock_getprotobyname(name);
5137 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
5140 else if (which == OP_GPBYNUMBER) {
5141 #ifdef HAS_GETPROTOBYNUMBER
5142 const int number = POPi;
5143 pent = PerlSock_getprotobynumber(number);
5145 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5149 #ifdef HAS_GETPROTOENT
5150 pent = PerlSock_getprotoent();
5152 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5156 if (GIMME_V != G_ARRAY) {
5157 PUSHs(sv = sv_newmortal());
5159 if (which == OP_GPBYNAME)
5160 sv_setiv(sv, (IV)pent->p_proto);
5162 sv_setpv(sv, pent->p_name);
5168 mPUSHs(newSVpv(pent->p_name, 0));
5169 PUSHs(space_join_names_mortal(pent->p_aliases));
5170 mPUSHi(pent->p_proto);
5175 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
5180 /* also used for: pp_gsbyname() pp_gsbyport() */
5184 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5186 I32 which = PL_op->op_type;
5188 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5189 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5190 struct servent *getservbyport(int, Netdb_name_t);
5191 struct servent *getservent(void);
5193 struct servent *sent;
5195 if (which == OP_GSBYNAME) {
5196 #ifdef HAS_GETSERVBYNAME
5197 const char * const proto = POPpbytex;
5198 const char * const name = POPpbytex;
5199 sent = PerlSock_getservbyname(name, (proto && !*proto) ? NULL : proto);
5201 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5204 else if (which == OP_GSBYPORT) {
5205 #ifdef HAS_GETSERVBYPORT
5206 const char * const proto = POPpbytex;
5207 unsigned short port = (unsigned short)POPu;
5208 port = PerlSock_htons(port);
5209 sent = PerlSock_getservbyport(port, (proto && !*proto) ? NULL : proto);
5211 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5215 #ifdef HAS_GETSERVENT
5216 sent = PerlSock_getservent();
5218 DIE(aTHX_ PL_no_sock_func, "getservent");
5222 if (GIMME_V != G_ARRAY) {
5223 PUSHs(sv = sv_newmortal());
5225 if (which == OP_GSBYNAME) {
5226 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5229 sv_setpv(sv, sent->s_name);
5235 mPUSHs(newSVpv(sent->s_name, 0));
5236 PUSHs(space_join_names_mortal(sent->s_aliases));
5237 mPUSHi(PerlSock_ntohs(sent->s_port));
5238 mPUSHs(newSVpv(sent->s_proto, 0));
5243 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
5248 /* also used for: pp_snetent() pp_sprotoent() pp_sservent() */
5253 const int stayopen = TOPi;
5254 switch(PL_op->op_type) {
5256 #ifdef HAS_SETHOSTENT
5257 PerlSock_sethostent(stayopen);
5259 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
5262 #ifdef HAS_SETNETENT
5264 PerlSock_setnetent(stayopen);
5266 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
5270 #ifdef HAS_SETPROTOENT
5271 PerlSock_setprotoent(stayopen);
5273 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
5277 #ifdef HAS_SETSERVENT
5278 PerlSock_setservent(stayopen);
5280 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
5288 /* also used for: pp_egrent() pp_enetent() pp_eprotoent() pp_epwent()
5289 * pp_eservent() pp_sgrent() pp_spwent() */
5294 switch(PL_op->op_type) {
5296 #ifdef HAS_ENDHOSTENT
5297 PerlSock_endhostent();
5299 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
5303 #ifdef HAS_ENDNETENT
5304 PerlSock_endnetent();
5306 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
5310 #ifdef HAS_ENDPROTOENT
5311 PerlSock_endprotoent();
5313 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
5317 #ifdef HAS_ENDSERVENT
5318 PerlSock_endservent();
5320 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
5324 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5327 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5331 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5334 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5338 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5341 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5345 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5348 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5357 /* also used for: pp_gpwnam() pp_gpwuid() */
5363 I32 which = PL_op->op_type;
5365 struct passwd *pwent = NULL;
5367 * We currently support only the SysV getsp* shadow password interface.
5368 * The interface is declared in <shadow.h> and often one needs to link
5369 * with -lsecurity or some such.
5370 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5373 * AIX getpwnam() is clever enough to return the encrypted password
5374 * only if the caller (euid?) is root.
5376 * There are at least three other shadow password APIs. Many platforms
5377 * seem to contain more than one interface for accessing the shadow
5378 * password databases, possibly for compatibility reasons.
5379 * The getsp*() is by far he simplest one, the other two interfaces
5380 * are much more complicated, but also very similar to each other.
5385 * struct pr_passwd *getprpw*();
5386 * The password is in
5387 * char getprpw*(...).ufld.fd_encrypt[]
5388 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5393 * struct es_passwd *getespw*();
5394 * The password is in
5395 * char *(getespw*(...).ufld.fd_encrypt)
5396 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5399 * struct userpw *getuserpw();
5400 * The password is in
5401 * char *(getuserpw(...)).spw_upw_passwd
5402 * (but the de facto standard getpwnam() should work okay)
5404 * Mention I_PROT here so that Configure probes for it.
5406 * In HP-UX for getprpw*() the manual page claims that one should include
5407 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5408 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5409 * and pp_sys.c already includes <shadow.h> if there is such.
5411 * Note that <sys/security.h> is already probed for, but currently
5412 * it is only included in special cases.
5414 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5415 * be preferred interface, even though also the getprpw*() interface
5416 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5417 * One also needs to call set_auth_parameters() in main() before
5418 * doing anything else, whether one is using getespw*() or getprpw*().
5420 * Note that accessing the shadow databases can be magnitudes
5421 * slower than accessing the standard databases.
5426 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5427 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5428 * the pw_comment is left uninitialized. */
5429 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5435 const char* const name = POPpbytex;
5436 pwent = getpwnam(name);
5442 pwent = getpwuid(uid);
5446 # ifdef HAS_GETPWENT
5448 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5449 if (pwent) pwent = getpwnam(pwent->pw_name);
5452 DIE(aTHX_ PL_no_func, "getpwent");
5458 if (GIMME_V != G_ARRAY) {
5459 PUSHs(sv = sv_newmortal());
5461 if (which == OP_GPWNAM)
5462 sv_setuid(sv, pwent->pw_uid);
5464 sv_setpv(sv, pwent->pw_name);
5470 mPUSHs(newSVpv(pwent->pw_name, 0));
5474 /* If we have getspnam(), we try to dig up the shadow
5475 * password. If we are underprivileged, the shadow
5476 * interface will set the errno to EACCES or similar,
5477 * and return a null pointer. If this happens, we will
5478 * use the dummy password (usually "*" or "x") from the
5479 * standard password database.
5481 * In theory we could skip the shadow call completely
5482 * if euid != 0 but in practice we cannot know which
5483 * security measures are guarding the shadow databases
5484 * on a random platform.
5486 * Resist the urge to use additional shadow interfaces.
5487 * Divert the urge to writing an extension instead.
5490 /* Some AIX setups falsely(?) detect some getspnam(), which
5491 * has a different API than the Solaris/IRIX one. */
5492 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5495 const struct spwd * const spwent = getspnam(pwent->pw_name);
5496 /* Save and restore errno so that
5497 * underprivileged attempts seem
5498 * to have never made the unsuccessful
5499 * attempt to retrieve the shadow password. */
5501 if (spwent && spwent->sp_pwdp)
5502 sv_setpv(sv, spwent->sp_pwdp);
5506 if (!SvPOK(sv)) /* Use the standard password, then. */
5507 sv_setpv(sv, pwent->pw_passwd);
5510 /* passwd is tainted because user himself can diddle with it.
5511 * admittedly not much and in a very limited way, but nevertheless. */
5514 sv_setuid(PUSHmortal, pwent->pw_uid);
5515 sv_setgid(PUSHmortal, pwent->pw_gid);
5517 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5518 * because of the poor interface of the Perl getpw*(),
5519 * not because there's some standard/convention saying so.
5520 * A better interface would have been to return a hash,
5521 * but we are accursed by our history, alas. --jhi. */
5523 mPUSHi(pwent->pw_change);
5526 mPUSHi(pwent->pw_quota);
5529 mPUSHs(newSVpv(pwent->pw_age, 0));
5531 /* I think that you can never get this compiled, but just in case. */
5532 PUSHs(sv_mortalcopy(&PL_sv_no));
5537 /* pw_class and pw_comment are mutually exclusive--.
5538 * see the above note for pw_change, pw_quota, and pw_age. */
5540 mPUSHs(newSVpv(pwent->pw_class, 0));
5543 mPUSHs(newSVpv(pwent->pw_comment, 0));
5545 /* I think that you can never get this compiled, but just in case. */
5546 PUSHs(sv_mortalcopy(&PL_sv_no));
5551 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_gecos, 0)));
5553 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5555 /* pw_gecos is tainted because user himself can diddle with it. */
5558 mPUSHs(newSVpv(pwent->pw_dir, 0));
5560 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_shell, 0)));
5561 /* pw_shell is tainted because user himself can diddle with it. */
5565 mPUSHi(pwent->pw_expire);
5570 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5575 /* also used for: pp_ggrgid() pp_ggrnam() */
5581 const I32 which = PL_op->op_type;
5582 const struct group *grent;
5584 if (which == OP_GGRNAM) {
5585 const char* const name = POPpbytex;
5586 grent = (const struct group *)getgrnam(name);
5588 else if (which == OP_GGRGID) {
5590 const Gid_t gid = POPu;
5591 #elif Gid_t_sign == -1
5592 const Gid_t gid = POPi;
5594 # error "Unexpected Gid_t_sign"
5596 grent = (const struct group *)getgrgid(gid);
5600 grent = (struct group *)getgrent();
5602 DIE(aTHX_ PL_no_func, "getgrent");
5606 if (GIMME_V != G_ARRAY) {
5607 SV * const sv = sv_newmortal();
5611 if (which == OP_GGRNAM)
5612 sv_setgid(sv, grent->gr_gid);
5614 sv_setpv(sv, grent->gr_name);
5620 mPUSHs(newSVpv(grent->gr_name, 0));
5623 mPUSHs(newSVpv(grent->gr_passwd, 0));
5625 PUSHs(sv_mortalcopy(&PL_sv_no));
5628 sv_setgid(PUSHmortal, grent->gr_gid);
5630 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5631 /* In UNICOS/mk (_CRAYMPP) the multithreading
5632 * versions (getgrnam_r, getgrgid_r)
5633 * seem to return an illegal pointer
5634 * as the group members list, gr_mem.
5635 * getgrent() doesn't even have a _r version
5636 * but the gr_mem is poisonous anyway.
5637 * So yes, you cannot get the list of group
5638 * members if building multithreaded in UNICOS/mk. */
5639 PUSHs(space_join_names_mortal(grent->gr_mem));
5645 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5655 if (!(tmps = PerlProc_getlogin()))
5657 sv_setpv_mg(TARG, tmps);
5661 DIE(aTHX_ PL_no_func, "getlogin");
5665 /* Miscellaneous. */
5670 dSP; dMARK; dORIGMARK; dTARGET;
5671 I32 items = SP - MARK;
5672 unsigned long a[20];
5677 while (++MARK <= SP) {
5678 if (SvTAINTED(*MARK)) {
5684 TAINT_PROPER("syscall");
5687 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5688 * or where sizeof(long) != sizeof(char*). But such machines will
5689 * not likely have syscall implemented either, so who cares?
5691 while (++MARK <= SP) {
5692 if (SvNIOK(*MARK) || !i)
5693 a[i++] = SvIV(*MARK);
5694 else if (*MARK == &PL_sv_undef)
5697 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
5703 DIE(aTHX_ "Too many args to syscall");
5705 DIE(aTHX_ "Too few args to syscall");
5707 retval = syscall(a[0]);
5710 retval = syscall(a[0],a[1]);
5713 retval = syscall(a[0],a[1],a[2]);
5716 retval = syscall(a[0],a[1],a[2],a[3]);
5719 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5722 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5725 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5728 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5735 DIE(aTHX_ PL_no_func, "syscall");
5739 #ifdef FCNTL_EMULATE_FLOCK
5741 /* XXX Emulate flock() with fcntl().
5742 What's really needed is a good file locking module.
5746 fcntl_emulate_flock(int fd, int operation)
5751 switch (operation & ~LOCK_NB) {
5753 flock.l_type = F_RDLCK;
5756 flock.l_type = F_WRLCK;
5759 flock.l_type = F_UNLCK;
5765 flock.l_whence = SEEK_SET;
5766 flock.l_start = flock.l_len = (Off_t)0;
5768 res = fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5769 if (res == -1 && ((errno == EAGAIN) || (errno == EACCES)))
5770 errno = EWOULDBLOCK;
5774 #endif /* FCNTL_EMULATE_FLOCK */
5776 #ifdef LOCKF_EMULATE_FLOCK
5778 /* XXX Emulate flock() with lockf(). This is just to increase
5779 portability of scripts. The calls are not completely
5780 interchangeable. What's really needed is a good file
5784 /* The lockf() constants might have been defined in <unistd.h>.
5785 Unfortunately, <unistd.h> causes troubles on some mixed
5786 (BSD/POSIX) systems, such as SunOS 4.1.3.
5788 Further, the lockf() constants aren't POSIX, so they might not be
5789 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5790 just stick in the SVID values and be done with it. Sigh.
5794 # define F_ULOCK 0 /* Unlock a previously locked region */
5797 # define F_LOCK 1 /* Lock a region for exclusive use */
5800 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5803 # define F_TEST 3 /* Test a region for other processes locks */
5807 lockf_emulate_flock(int fd, int operation)
5813 /* flock locks entire file so for lockf we need to do the same */
5814 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5815 if (pos > 0) /* is seekable and needs to be repositioned */
5816 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5817 pos = -1; /* seek failed, so don't seek back afterwards */
5820 switch (operation) {
5822 /* LOCK_SH - get a shared lock */
5824 /* LOCK_EX - get an exclusive lock */
5826 i = lockf (fd, F_LOCK, 0);
5829 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5830 case LOCK_SH|LOCK_NB:
5831 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5832 case LOCK_EX|LOCK_NB:
5833 i = lockf (fd, F_TLOCK, 0);
5835 if ((errno == EAGAIN) || (errno == EACCES))
5836 errno = EWOULDBLOCK;
5839 /* LOCK_UN - unlock (non-blocking is a no-op) */
5841 case LOCK_UN|LOCK_NB:
5842 i = lockf (fd, F_ULOCK, 0);
5845 /* Default - can't decipher operation */
5852 if (pos > 0) /* need to restore position of the handle */
5853 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5858 #endif /* LOCKF_EMULATE_FLOCK */
5861 * ex: set ts=8 sts=4 sw=4 et: