3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, 2004, 2005, 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.
18 /* This file contains system pp ("push/pop") functions that
19 * execute the opcodes that make up a perl program. A typical pp function
20 * expects to find its arguments on the stack, and usually pushes its
21 * results onto the stack, hence the 'pp' terminology. Each OP structure
22 * contains a pointer to the relevant pp_foo() function.
24 * By 'system', we mean ops which interact with the OS, such as pp_open().
28 #define PERL_IN_PP_SYS_C
32 /* Shadow password support for solaris - pdo@cs.umd.edu
33 * Not just Solaris: at least HP-UX, IRIX, Linux.
34 * The API is from SysV.
36 * There are at least two more shadow interfaces,
37 * see the comments in pp_gpwent().
41 /* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
42 * and another MAXINT from "perl.h" <- <sys/param.h>. */
49 # include <sys/wait.h>
53 # include <sys/resource.h>
62 # include <sys/select.h>
66 /* XXX Configure test needed.
67 h_errno might not be a simple 'int', especially for multi-threaded
68 applications, see "extern int errno in perl.h". Creating such
69 a test requires taking into account the differences between
70 compiling multithreaded and singlethreaded ($ccflags et al).
71 HOST_NOT_FOUND is typically defined in <netdb.h>.
73 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
82 struct passwd *getpwnam (char *);
83 struct passwd *getpwuid (Uid_t);
88 struct passwd *getpwent (void);
89 #elif defined (VMS) && defined (my_getpwent)
90 struct passwd *Perl_my_getpwent (pTHX);
99 struct group *getgrnam (char *);
100 struct group *getgrgid (Gid_t);
104 struct group *getgrent (void);
110 # if defined(_MSC_VER) || defined(__MINGW32__)
111 # include <sys/utime.h>
118 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
121 # define my_chsize PerlLIO_chsize
124 # define my_chsize PerlLIO_chsize
126 I32 my_chsize(int fd, Off_t length);
132 #else /* no flock() */
134 /* fcntl.h might not have been included, even if it exists, because
135 the current Configure only sets I_FCNTL if it's needed to pick up
136 the *_OK constants. Make sure it has been included before testing
137 the fcntl() locking constants. */
138 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
142 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
143 # define FLOCK fcntl_emulate_flock
144 # define FCNTL_EMULATE_FLOCK
145 # else /* no flock() or fcntl(F_SETLK,...) */
147 # define FLOCK lockf_emulate_flock
148 # define LOCKF_EMULATE_FLOCK
150 # endif /* no flock() or fcntl(F_SETLK,...) */
153 static int FLOCK (int, int);
156 * These are the flock() constants. Since this sytems doesn't have
157 * flock(), the values of the constants are probably not available.
171 # endif /* emulating flock() */
173 #endif /* no flock() */
176 static const char zero_but_true[ZBTLEN + 1] = "0 but true";
178 #if defined(I_SYS_ACCESS) && !defined(R_OK)
179 # include <sys/access.h>
182 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
183 # define FD_CLOEXEC 1 /* NeXT needs this */
189 /* Missing protos on LynxOS */
190 void sethostent(int);
191 void endhostent(void);
193 void endnetent(void);
194 void setprotoent(int);
195 void endprotoent(void);
196 void setservent(int);
197 void endservent(void);
200 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
201 #undef PERL_EFF_ACCESS_W_OK
202 #undef PERL_EFF_ACCESS_X_OK
204 /* AIX 5.2 and below use mktime for localtime, and defines the edge case
205 * for time 0x7fffffff to be valid only in UTC. AIX 5.3 provides localtime64
206 * available in the 32bit environment, which could warrant Configure
207 * checks in the future.
210 #define LOCALTIME_EDGECASE_BROKEN
213 /* F_OK unused: if stat() cannot find it... */
215 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
216 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
217 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
218 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
219 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
222 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
223 # ifdef I_SYS_SECURITY
224 # include <sys/security.h>
228 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
229 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
230 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
233 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
234 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
235 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
239 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
241 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
242 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
243 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
246 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
247 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
248 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
251 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
253 const Uid_t ruid = getuid();
254 const Uid_t euid = geteuid();
255 const Gid_t rgid = getgid();
256 const Gid_t egid = getegid();
260 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
261 Perl_croak(aTHX_ "switching effective uid is not implemented");
264 if (setreuid(euid, ruid))
267 if (setresuid(euid, ruid, (Uid_t)-1))
270 Perl_croak(aTHX_ "entering effective uid failed");
273 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
274 Perl_croak(aTHX_ "switching effective gid is not implemented");
277 if (setregid(egid, rgid))
280 if (setresgid(egid, rgid, (Gid_t)-1))
283 Perl_croak(aTHX_ "entering effective gid failed");
286 res = access(path, mode);
289 if (setreuid(ruid, euid))
292 if (setresuid(ruid, euid, (Uid_t)-1))
295 Perl_croak(aTHX_ "leaving effective uid failed");
298 if (setregid(rgid, egid))
301 if (setresgid(rgid, egid, (Gid_t)-1))
304 Perl_croak(aTHX_ "leaving effective gid failed");
309 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
310 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
311 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
314 #if !defined(PERL_EFF_ACCESS_R_OK)
315 /* With it or without it: anyway you get a warning: either that
316 it is unused, or it is declared static and never defined.
319 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
323 Perl_croak(aTHX_ "switching effective uid is not implemented");
333 const char * const tmps = POPpconstx;
334 const I32 gimme = GIMME_V;
335 const char *mode = "r";
338 if (PL_op->op_private & OPpOPEN_IN_RAW)
340 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
342 fp = PerlProc_popen(tmps, mode);
344 const char *type = NULL;
345 if (PL_curcop->cop_io) {
346 type = SvPV_nolen_const(PL_curcop->cop_io);
349 PerlIO_apply_layers(aTHX_ fp,mode,type);
351 if (gimme == G_VOID) {
353 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
356 else if (gimme == G_SCALAR) {
359 PL_rs = &PL_sv_undef;
360 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
361 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
369 SV * const sv = NEWSV(56, 79);
370 if (sv_gets(sv, fp, 0) == Nullch) {
374 XPUSHs(sv_2mortal(sv));
375 if (SvLEN(sv) - SvCUR(sv) > 20) {
376 SvPV_shrink_to_cur(sv);
381 STATUS_NATIVE_CHILD_SET(PerlProc_pclose(fp));
382 TAINT; /* "I believe that this is not gratuitous!" */
385 STATUS_NATIVE_CHILD_SET(-1);
386 if (gimme == G_SCALAR)
397 tryAMAGICunTARGET(iter, -1);
399 /* Note that we only ever get here if File::Glob fails to load
400 * without at the same time croaking, for some reason, or if
401 * perl was built with PERL_EXTERNAL_GLOB */
408 * The external globbing program may use things we can't control,
409 * so for security reasons we must assume the worst.
412 taint_proper(PL_no_security, "glob");
416 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
417 PL_last_in_gv = (GV*)*PL_stack_sp--;
419 SAVESPTR(PL_rs); /* This is not permanent, either. */
420 PL_rs = sv_2mortal(newSVpvn("\000", 1));
423 *SvPVX(PL_rs) = '\n';
427 result = do_readline();
434 PL_last_in_gv = cGVOP_gv;
435 return do_readline();
444 if (SP - MARK != 1) {
446 do_join(TARG, &PL_sv_no, MARK, SP);
453 tmps = SvPV_const(tmpsv, len);
454 if ((!tmps || !len) && PL_errgv) {
455 SV * const error = ERRSV;
456 SvUPGRADE(error, SVt_PV);
457 if (SvPOK(error) && SvCUR(error))
458 sv_catpv(error, "\t...caught");
460 tmps = SvPV_const(tmpsv, len);
463 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
465 Perl_warn(aTHX_ "%"SVf, tmpsv);
477 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
479 if (SP - MARK != 1) {
481 do_join(TARG, &PL_sv_no, MARK, SP);
483 tmps = SvPV_const(tmpsv, len);
489 tmps = SvROK(tmpsv) ? Nullch : SvPV_const(tmpsv, len);
493 SvUPGRADE(error, SVt_PV);
494 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
496 SvSetSV(error,tmpsv);
497 else if (sv_isobject(error)) {
498 HV *stash = SvSTASH(SvRV(error));
499 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
501 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
502 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
509 call_sv((SV*)GvCV(gv),
510 G_SCALAR|G_EVAL|G_KEEPERR);
511 sv_setsv(error,*PL_stack_sp--);
517 if (SvPOK(error) && SvCUR(error))
518 sv_catpv(error, "\t...propagated");
521 tmps = SvPV_const(tmpsv, len);
527 tmpsv = sv_2mortal(newSVpvn("Died", 4));
529 DIE(aTHX_ "%"SVf, tmpsv);
545 GV * const gv = (GV *)*++MARK;
548 DIE(aTHX_ PL_no_usym, "filehandle");
549 if ((io = GvIOp(gv)))
550 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
553 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
555 /* Method's args are same as ours ... */
556 /* ... except handle is replaced by the object */
557 *MARK-- = SvTIED_obj((SV*)io, mg);
561 call_method("OPEN", G_SCALAR);
575 tmps = SvPV_const(sv, len);
576 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
579 PUSHi( (I32)PL_forkprocess );
580 else if (PL_forkprocess == 0) /* we are a new child */
592 GV * const gv = (MAXARG == 0) ? PL_defoutgv : (GV*)POPs;
594 if (gv && (io = GvIO(gv))
595 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
598 XPUSHs(SvTIED_obj((SV*)io, mg));
601 call_method("CLOSE", G_SCALAR);
607 PUSHs(boolSV(do_close(gv, TRUE)));
619 GV * const wgv = (GV*)POPs;
620 GV * const rgv = (GV*)POPs;
625 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
626 DIE(aTHX_ PL_no_usym, "filehandle");
631 do_close(rgv, FALSE);
633 do_close(wgv, FALSE);
635 if (PerlProc_pipe(fd) < 0)
638 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
639 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
640 IoOFP(rstio) = IoIFP(rstio);
641 IoIFP(wstio) = IoOFP(wstio);
642 IoTYPE(rstio) = IoTYPE_RDONLY;
643 IoTYPE(wstio) = IoTYPE_WRONLY;
645 if (!IoIFP(rstio) || !IoOFP(wstio)) {
646 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
647 else PerlLIO_close(fd[0]);
648 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
649 else PerlLIO_close(fd[1]);
652 #if defined(HAS_FCNTL) && defined(F_SETFD)
653 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
654 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
661 DIE(aTHX_ PL_no_func, "pipe");
677 if (gv && (io = GvIO(gv))
678 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
681 XPUSHs(SvTIED_obj((SV*)io, mg));
684 call_method("FILENO", G_SCALAR);
690 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
691 /* Can't do this because people seem to do things like
692 defined(fileno($foo)) to check whether $foo is a valid fh.
693 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
694 report_evil_fh(gv, io, PL_op->op_type);
699 PUSHi(PerlIO_fileno(fp));
711 anum = PerlLIO_umask(0);
712 (void)PerlLIO_umask(anum);
715 anum = PerlLIO_umask(POPi);
716 TAINT_PROPER("umask");
719 /* Only DIE if trying to restrict permissions on "user" (self).
720 * Otherwise it's harmless and more useful to just return undef
721 * since 'group' and 'other' concepts probably don't exist here. */
722 if (MAXARG >= 1 && (POPi & 0700))
723 DIE(aTHX_ "umask not implemented");
724 XPUSHs(&PL_sv_undef);
746 if (gv && (io = GvIO(gv))
747 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
750 XPUSHs(SvTIED_obj((SV*)io, mg));
755 call_method("BINMODE", G_SCALAR);
762 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
763 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
764 report_evil_fh(gv, io, PL_op->op_type);
765 SETERRNO(EBADF,RMS_IFI);
770 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
771 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
772 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
773 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
774 mode_from_discipline(discp),
775 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
795 const I32 markoff = MARK - PL_stack_base;
796 const char *methname;
797 int how = PERL_MAGIC_tied;
801 switch(SvTYPE(varsv)) {
803 methname = "TIEHASH";
804 HvEITER_set((HV *)varsv, 0);
807 methname = "TIEARRAY";
810 #ifdef GV_UNIQUE_CHECK
811 if (GvUNIQUE((GV*)varsv)) {
812 Perl_croak(aTHX_ "Attempt to tie unique GV");
815 methname = "TIEHANDLE";
816 how = PERL_MAGIC_tiedscalar;
817 /* For tied filehandles, we apply tiedscalar magic to the IO
818 slot of the GP rather than the GV itself. AMS 20010812 */
820 GvIOp(varsv) = newIO();
821 varsv = (SV *)GvIOp(varsv);
824 methname = "TIESCALAR";
825 how = PERL_MAGIC_tiedscalar;
829 if (sv_isobject(*MARK)) {
831 PUSHSTACKi(PERLSI_MAGIC);
833 EXTEND(SP,(I32)items);
837 call_method(methname, G_SCALAR);
840 /* Not clear why we don't call call_method here too.
841 * perhaps to get different error message ?
843 stash = gv_stashsv(*MARK, FALSE);
844 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
845 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
849 PUSHSTACKi(PERLSI_MAGIC);
851 EXTEND(SP,(I32)items);
855 call_sv((SV*)GvCV(gv), G_SCALAR);
861 if (sv_isobject(sv)) {
862 sv_unmagic(varsv, how);
863 /* Croak if a self-tie on an aggregate is attempted. */
864 if (varsv == SvRV(sv) &&
865 (SvTYPE(varsv) == SVt_PVAV ||
866 SvTYPE(varsv) == SVt_PVHV))
868 "Self-ties of arrays and hashes are not supported");
869 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
872 SP = PL_stack_base + markoff;
882 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
883 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
885 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
888 if ((mg = SvTIED_mg(sv, how))) {
889 SV * const obj = SvRV(SvTIED_obj(sv, mg));
892 GV * const gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE);
893 if (gv && isGV(gv) && (cv = GvCV(gv))) {
895 XPUSHs(SvTIED_obj((SV*)gv, mg));
896 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
899 call_sv((SV *)cv, G_VOID);
903 else if (mg && SvREFCNT(obj) > 1 && ckWARN(WARN_UNTIE)) {
904 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
905 "untie attempted while %"UVuf" inner references still exist",
906 (UV)SvREFCNT(obj) - 1 ) ;
910 sv_unmagic(sv, how) ;
919 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
920 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
922 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
925 if ((mg = SvTIED_mg(sv, how))) {
926 SV *osv = SvTIED_obj(sv, mg);
927 if (osv == mg->mg_obj)
928 osv = sv_mortalcopy(osv);
942 HV * const hv = (HV*)POPs;
943 SV * const sv = sv_mortalcopy(&PL_sv_no);
945 sv_setpv(sv, "AnyDBM_File");
946 stash = gv_stashsv(sv, FALSE);
947 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
949 require_pv("AnyDBM_File.pm");
951 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
952 DIE(aTHX_ "No dbm on this machine");
962 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
964 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
967 call_sv((SV*)GvCV(gv), G_SCALAR);
970 if (!sv_isobject(TOPs)) {
975 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
978 call_sv((SV*)GvCV(gv), G_SCALAR);
982 if (sv_isobject(TOPs)) {
983 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
984 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
1006 struct timeval timebuf;
1007 struct timeval *tbuf = &timebuf;
1010 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1015 # if BYTEORDER & 0xf0000
1016 # define ORDERBYTE (0x88888888 - BYTEORDER)
1018 # define ORDERBYTE (0x4444 - BYTEORDER)
1024 for (i = 1; i <= 3; i++) {
1025 SV * const sv = SP[i];
1028 if (SvREADONLY(sv)) {
1030 sv_force_normal_flags(sv, 0);
1031 if (SvREADONLY(sv) && !(SvPOK(sv) && SvCUR(sv) == 0))
1032 DIE(aTHX_ PL_no_modify);
1035 if (ckWARN(WARN_MISC))
1036 Perl_warner(aTHX_ packWARN(WARN_MISC), "Non-string passed as bitmask");
1037 SvPV_force_nolen(sv); /* force string conversion */
1044 /* little endians can use vecs directly */
1045 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1052 masksize = NFDBITS / NBBY;
1054 masksize = sizeof(long); /* documented int, everyone seems to use long */
1056 Zero(&fd_sets[0], 4, char*);
1059 # if SELECT_MIN_BITS == 1
1060 growsize = sizeof(fd_set);
1062 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1063 # undef SELECT_MIN_BITS
1064 # define SELECT_MIN_BITS __FD_SETSIZE
1066 /* If SELECT_MIN_BITS is greater than one we most probably will want
1067 * to align the sizes with SELECT_MIN_BITS/8 because for example
1068 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1069 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1070 * on (sets/tests/clears bits) is 32 bits. */
1071 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1079 timebuf.tv_sec = (long)value;
1080 value -= (NV)timebuf.tv_sec;
1081 timebuf.tv_usec = (long)(value * 1000000.0);
1084 tbuf = Null(struct timeval*);
1086 for (i = 1; i <= 3; i++) {
1088 if (!SvOK(sv) || SvCUR(sv) == 0) {
1095 Sv_Grow(sv, growsize);
1099 while (++j <= growsize) {
1103 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1105 Newx(fd_sets[i], growsize, char);
1106 for (offset = 0; offset < growsize; offset += masksize) {
1107 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1108 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1111 fd_sets[i] = SvPVX(sv);
1115 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1116 /* Can't make just the (void*) conditional because that would be
1117 * cpp #if within cpp macro, and not all compilers like that. */
1118 nfound = PerlSock_select(
1120 (Select_fd_set_t) fd_sets[1],
1121 (Select_fd_set_t) fd_sets[2],
1122 (Select_fd_set_t) fd_sets[3],
1123 (void*) tbuf); /* Workaround for compiler bug. */
1125 nfound = PerlSock_select(
1127 (Select_fd_set_t) fd_sets[1],
1128 (Select_fd_set_t) fd_sets[2],
1129 (Select_fd_set_t) fd_sets[3],
1132 for (i = 1; i <= 3; i++) {
1135 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1137 for (offset = 0; offset < growsize; offset += masksize) {
1138 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1139 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1141 Safefree(fd_sets[i]);
1148 if (GIMME == G_ARRAY && tbuf) {
1149 value = (NV)(timebuf.tv_sec) +
1150 (NV)(timebuf.tv_usec) / 1000000.0;
1151 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1152 sv_setnv(sv, value);
1156 DIE(aTHX_ "select not implemented");
1161 Perl_setdefout(pTHX_ GV *gv)
1164 (void)SvREFCNT_inc(gv);
1166 SvREFCNT_dec(PL_defoutgv);
1176 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1178 egv = GvEGV(PL_defoutgv);
1183 XPUSHs(&PL_sv_undef);
1185 GV * const * const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1186 if (gvp && *gvp == egv) {
1187 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1191 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1196 if (!GvIO(newdefout))
1197 gv_IOadd(newdefout);
1198 setdefout(newdefout);
1209 GV * const gv = (MAXARG==0) ? PL_stdingv : (GV*)POPs;
1211 if (gv && (io = GvIO(gv))
1212 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1214 const I32 gimme = GIMME_V;
1216 XPUSHs(SvTIED_obj((SV*)io, mg));
1219 call_method("GETC", gimme);
1222 if (gimme == G_SCALAR)
1223 SvSetMagicSV_nosteal(TARG, TOPs);
1226 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1227 if ((!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
1228 && ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1229 report_evil_fh(gv, io, PL_op->op_type);
1230 SETERRNO(EBADF,RMS_IFI);
1234 sv_setpvn(TARG, " ", 1);
1235 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1236 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1237 /* Find out how many bytes the char needs */
1238 Size_t len = UTF8SKIP(SvPVX_const(TARG));
1241 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1242 SvCUR_set(TARG,1+len);
1252 return pp_sysread();
1256 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1259 register PERL_CONTEXT *cx;
1260 const I32 gimme = GIMME_V;
1265 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1267 cx->blk_sub.retop = retop;
1269 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1);
1271 setdefout(gv); /* locally select filehandle so $% et al work */
1303 SV * const tmpsv = sv_newmortal();
1305 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1306 name = SvPV_nolen_const(tmpsv);
1308 DIE(aTHX_ "Undefined format \"%s\" called", name);
1310 DIE(aTHX_ "Not a format reference");
1313 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1315 IoFLAGS(io) &= ~IOf_DIDTOP;
1316 return doform(cv,gv,PL_op->op_next);
1322 GV * const gv = cxstack[cxstack_ix].blk_sub.gv;
1323 register IO * const io = GvIOp(gv);
1324 PerlIO * const ofp = IoOFP(io);
1328 register PERL_CONTEXT *cx;
1330 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1331 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1334 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1335 PL_formtarget != PL_toptarget)
1339 if (!IoTOP_GV(io)) {
1342 if (!IoTOP_NAME(io)) {
1344 if (!IoFMT_NAME(io))
1345 IoFMT_NAME(io) = savepv(GvNAME(gv));
1346 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1347 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
1348 if ((topgv && GvFORM(topgv)) ||
1349 !gv_fetchpv("top",FALSE,SVt_PVFM))
1350 IoTOP_NAME(io) = savesvpv(topname);
1352 IoTOP_NAME(io) = savepvn("top", 3);
1354 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1355 if (!topgv || !GvFORM(topgv)) {
1356 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1359 IoTOP_GV(io) = topgv;
1361 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1362 I32 lines = IoLINES_LEFT(io);
1363 const char *s = SvPVX_const(PL_formtarget);
1364 if (lines <= 0) /* Yow, header didn't even fit!!! */
1366 while (lines-- > 0) {
1367 s = strchr(s, '\n');
1373 const STRLEN save = SvCUR(PL_formtarget);
1374 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
1375 do_print(PL_formtarget, ofp);
1376 SvCUR_set(PL_formtarget, save);
1377 sv_chop(PL_formtarget, s);
1378 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1381 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1382 do_print(PL_formfeed, ofp);
1383 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1385 PL_formtarget = PL_toptarget;
1386 IoFLAGS(io) |= IOf_DIDTOP;
1389 DIE(aTHX_ "bad top format reference");
1392 SV * const sv = sv_newmortal();
1394 gv_efullname4(sv, fgv, Nullch, FALSE);
1395 name = SvPV_nolen_const(sv);
1397 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1401 DIE(aTHX_ "Undefined top format called");
1404 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1405 return doform(cv,gv,PL_op);
1409 POPBLOCK(cx,PL_curpm);
1415 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1417 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1418 else if (ckWARN(WARN_CLOSED))
1419 report_evil_fh(gv, io, PL_op->op_type);
1424 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1425 if (ckWARN(WARN_IO))
1426 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1428 if (!do_print(PL_formtarget, fp))
1431 FmLINES(PL_formtarget) = 0;
1432 SvCUR_set(PL_formtarget, 0);
1433 *SvEND(PL_formtarget) = '\0';
1434 if (IoFLAGS(io) & IOf_FLUSH)
1435 (void)PerlIO_flush(fp);
1440 PL_formtarget = PL_bodytarget;
1442 PERL_UNUSED_VAR(newsp);
1443 PERL_UNUSED_VAR(gimme);
1444 return cx->blk_sub.retop;
1449 dVAR; dSP; dMARK; dORIGMARK;
1455 GV * const gv = (PL_op->op_flags & OPf_STACKED) ? (GV*)*++MARK : PL_defoutgv;
1457 if (gv && (io = GvIO(gv))
1458 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1460 if (MARK == ORIGMARK) {
1463 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1467 *MARK = SvTIED_obj((SV*)io, mg);
1470 call_method("PRINTF", G_SCALAR);
1473 MARK = ORIGMARK + 1;
1480 if (!(io = GvIO(gv))) {
1481 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1482 report_evil_fh(gv, io, PL_op->op_type);
1483 SETERRNO(EBADF,RMS_IFI);
1486 else if (!(fp = IoOFP(io))) {
1487 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1489 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1490 else if (ckWARN(WARN_CLOSED))
1491 report_evil_fh(gv, io, PL_op->op_type);
1493 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1497 do_sprintf(sv, SP - MARK, MARK + 1);
1498 if (!do_print(sv, fp))
1501 if (IoFLAGS(io) & IOf_FLUSH)
1502 if (PerlIO_flush(fp) == EOF)
1513 PUSHs(&PL_sv_undef);
1520 const int perm = (MAXARG > 3) ? POPi : 0666;
1521 const int mode = POPi;
1522 SV * const sv = POPs;
1523 GV * const gv = (GV *)POPs;
1526 /* Need TIEHANDLE method ? */
1527 const char * const tmps = SvPV_const(sv, len);
1528 /* FIXME? do_open should do const */
1529 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1530 IoLINES(GvIOp(gv)) = 0;
1534 PUSHs(&PL_sv_undef);
1541 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1547 Sock_size_t bufsize;
1555 bool charstart = FALSE;
1556 STRLEN charskip = 0;
1559 GV * const gv = (GV*)*++MARK;
1560 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1561 && gv && (io = GvIO(gv)) )
1563 const MAGIC * mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1567 *MARK = SvTIED_obj((SV*)io, mg);
1569 call_method("READ", G_SCALAR);
1583 sv_setpvn(bufsv, "", 0);
1584 length = SvIVx(*++MARK);
1587 offset = SvIVx(*++MARK);
1591 if (!io || !IoIFP(io)) {
1592 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1593 report_evil_fh(gv, io, PL_op->op_type);
1594 SETERRNO(EBADF,RMS_IFI);
1597 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1598 buffer = SvPVutf8_force(bufsv, blen);
1599 /* UTF-8 may not have been set if they are all low bytes */
1604 buffer = SvPV_force(bufsv, blen);
1605 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1608 DIE(aTHX_ "Negative length");
1616 if (PL_op->op_type == OP_RECV) {
1617 char namebuf[MAXPATHLEN];
1618 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1619 bufsize = sizeof (struct sockaddr_in);
1621 bufsize = sizeof namebuf;
1623 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1627 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1628 /* 'offset' means 'flags' here */
1629 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1630 (struct sockaddr *)namebuf, &bufsize);
1634 /* Bogus return without padding */
1635 bufsize = sizeof (struct sockaddr_in);
1637 SvCUR_set(bufsv, count);
1638 *SvEND(bufsv) = '\0';
1639 (void)SvPOK_only(bufsv);
1643 /* This should not be marked tainted if the fp is marked clean */
1644 if (!(IoFLAGS(io) & IOf_UNTAINT))
1645 SvTAINTED_on(bufsv);
1647 sv_setpvn(TARG, namebuf, bufsize);
1652 if (PL_op->op_type == OP_RECV)
1653 DIE(aTHX_ PL_no_sock_func, "recv");
1655 if (DO_UTF8(bufsv)) {
1656 /* offset adjust in characters not bytes */
1657 blen = sv_len_utf8(bufsv);
1660 if (-offset > (int)blen)
1661 DIE(aTHX_ "Offset outside string");
1664 if (DO_UTF8(bufsv)) {
1665 /* convert offset-as-chars to offset-as-bytes */
1666 if (offset >= (int)blen)
1667 offset += SvCUR(bufsv) - blen;
1669 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1672 bufsize = SvCUR(bufsv);
1673 /* Allocating length + offset + 1 isn't perfect in the case of reading
1674 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1676 (should be 2 * length + offset + 1, or possibly something longer if
1677 PL_encoding is true) */
1678 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1679 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
1680 Zero(buffer+bufsize, offset-bufsize, char);
1682 buffer = buffer + offset;
1684 read_target = bufsv;
1686 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1687 concatenate it to the current buffer. */
1689 /* Truncate the existing buffer to the start of where we will be
1691 SvCUR_set(bufsv, offset);
1693 read_target = sv_newmortal();
1694 SvUPGRADE(read_target, SVt_PV);
1695 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1698 if (PL_op->op_type == OP_SYSREAD) {
1699 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1700 if (IoTYPE(io) == IoTYPE_SOCKET) {
1701 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1707 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1712 #ifdef HAS_SOCKET__bad_code_maybe
1713 if (IoTYPE(io) == IoTYPE_SOCKET) {
1714 char namebuf[MAXPATHLEN];
1715 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1716 bufsize = sizeof (struct sockaddr_in);
1718 bufsize = sizeof namebuf;
1720 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1721 (struct sockaddr *)namebuf, &bufsize);
1726 count = PerlIO_read(IoIFP(io), buffer, length);
1727 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1728 if (count == 0 && PerlIO_error(IoIFP(io)))
1732 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1733 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1736 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1737 *SvEND(read_target) = '\0';
1738 (void)SvPOK_only(read_target);
1739 if (fp_utf8 && !IN_BYTES) {
1740 /* Look at utf8 we got back and count the characters */
1741 const char *bend = buffer + count;
1742 while (buffer < bend) {
1744 skip = UTF8SKIP(buffer);
1747 if (buffer - charskip + skip > bend) {
1748 /* partial character - try for rest of it */
1749 length = skip - (bend-buffer);
1750 offset = bend - SvPVX_const(bufsv);
1762 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1763 provided amount read (count) was what was requested (length)
1765 if (got < wanted && count == length) {
1766 length = wanted - got;
1767 offset = bend - SvPVX_const(bufsv);
1770 /* return value is character count */
1774 else if (buffer_utf8) {
1775 /* Let svcatsv upgrade the bytes we read in to utf8.
1776 The buffer is a mortal so will be freed soon. */
1777 sv_catsv_nomg(bufsv, read_target);
1780 /* This should not be marked tainted if the fp is marked clean */
1781 if (!(IoFLAGS(io) & IOf_UNTAINT))
1782 SvTAINTED_on(bufsv);
1795 const int items = (SP - PL_stack_base) - TOPMARK;
1799 sv = sv_2mortal(newSViv(sv_len(*SP)));
1808 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1819 if (PL_op->op_type == OP_SYSWRITE
1820 && gv && (io = GvIO(gv))
1821 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1826 *MARK = SvTIED_obj((SV*)io, mg);
1828 call_method("WRITE", G_SCALAR);
1839 #if Size_t_size > IVSIZE
1840 length = (Size_t)SvNVx(*++MARK);
1842 length = (Size_t)SvIVx(*++MARK);
1844 if ((SSize_t)length < 0)
1845 DIE(aTHX_ "Negative length");
1848 if (!io || !IoIFP(io)) {
1850 if (ckWARN(WARN_CLOSED))
1851 report_evil_fh(gv, io, PL_op->op_type);
1852 SETERRNO(EBADF,RMS_IFI);
1856 if (PerlIO_isutf8(IoIFP(io))) {
1857 if (!SvUTF8(bufsv)) {
1858 bufsv = sv_2mortal(newSVsv(bufsv));
1859 buffer = sv_2pvutf8(bufsv, &blen);
1861 buffer = SvPV_const(bufsv, blen);
1864 if (DO_UTF8(bufsv)) {
1865 /* Not modifying source SV, so making a temporary copy. */
1866 bufsv = sv_2mortal(newSVsv(bufsv));
1867 sv_utf8_downgrade(bufsv, FALSE);
1869 buffer = SvPV_const(bufsv, blen);
1872 if (PL_op->op_type == OP_SYSWRITE) {
1874 if (DO_UTF8(bufsv)) {
1875 /* length and offset are in chars */
1876 blen = sv_len_utf8(bufsv);
1879 offset = SvIVx(*++MARK);
1881 if (-offset > (IV)blen)
1882 DIE(aTHX_ "Offset outside string");
1884 } else if (offset >= (IV)blen && blen > 0)
1885 DIE(aTHX_ "Offset outside string");
1888 if (length > blen - offset)
1889 length = blen - offset;
1890 if (DO_UTF8(bufsv)) {
1891 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
1892 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1895 buffer = buffer+offset;
1897 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1898 if (IoTYPE(io) == IoTYPE_SOCKET) {
1899 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1905 /* See the note at doio.c:do_print about filesize limits. --jhi */
1906 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1911 else if (SP > MARK) {
1913 char * const sockbuf = SvPVx(*++MARK, mlen);
1914 /* length is really flags */
1915 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1916 length, (struct sockaddr *)sockbuf, mlen);
1919 /* length is really flags */
1920 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1923 DIE(aTHX_ PL_no_sock_func, "send");
1929 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1930 #if Size_t_size > IVSIZE
1944 return pp_sysread();
1955 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1957 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1959 if (io && !IoIFP(io)) {
1960 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1962 IoFLAGS(io) &= ~IOf_START;
1963 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1964 sv_setpvn(GvSV(gv), "-", 1);
1965 SvSETMAGIC(GvSV(gv));
1967 else if (!nextargv(gv))
1972 gv = PL_last_in_gv; /* eof */
1975 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1977 if (gv && (io = GvIO(gv))
1978 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1981 XPUSHs(SvTIED_obj((SV*)io, mg));
1984 call_method("EOF", G_SCALAR);
1990 PUSHs(boolSV(!gv || do_eof(gv)));
2002 PL_last_in_gv = (GV*)POPs;
2005 if (gv && (io = GvIO(gv))
2006 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2009 XPUSHs(SvTIED_obj((SV*)io, mg));
2012 call_method("TELL", G_SCALAR);
2018 #if LSEEKSIZE > IVSIZE
2019 PUSHn( do_tell(gv) );
2021 PUSHi( do_tell(gv) );
2028 return pp_sysseek();
2036 const int whence = POPi;
2037 #if LSEEKSIZE > IVSIZE
2038 Off_t offset = (Off_t)SvNVx(POPs);
2040 Off_t offset = (Off_t)SvIVx(POPs);
2044 gv = PL_last_in_gv = (GV*)POPs;
2046 if (gv && (io = GvIO(gv))
2047 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2050 XPUSHs(SvTIED_obj((SV*)io, mg));
2051 #if LSEEKSIZE > IVSIZE
2052 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2054 XPUSHs(sv_2mortal(newSViv(offset)));
2056 XPUSHs(sv_2mortal(newSViv(whence)));
2059 call_method("SEEK", G_SCALAR);
2065 if (PL_op->op_type == OP_SEEK)
2066 PUSHs(boolSV(do_seek(gv, offset, whence)));
2068 Off_t sought = do_sysseek(gv, offset, whence);
2070 PUSHs(&PL_sv_undef);
2073 #if LSEEKSIZE > IVSIZE
2078 : newSVpvn(zero_but_true, ZBTLEN);
2079 PUSHs(sv_2mortal(sv));
2088 /* There seems to be no consensus on the length type of truncate()
2089 * and ftruncate(), both off_t and size_t have supporters. In
2090 * general one would think that when using large files, off_t is
2091 * at least as wide as size_t, so using an off_t should be okay. */
2092 /* XXX Configure probe for the length type of *truncate() needed XXX */
2095 #if Off_t_size > IVSIZE
2100 /* Checking for length < 0 is problematic as the type might or
2101 * might not be signed: if it is not, clever compilers will moan. */
2102 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2109 if (PL_op->op_flags & OPf_SPECIAL) {
2110 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
2119 TAINT_PROPER("truncate");
2120 if (!(fp = IoIFP(io))) {
2126 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2128 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2138 if (SvTYPE(sv) == SVt_PVGV) {
2139 tmpgv = (GV*)sv; /* *main::FRED for example */
2140 goto do_ftruncate_gv;
2142 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2143 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2144 goto do_ftruncate_gv;
2146 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2147 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2148 goto do_ftruncate_io;
2151 name = SvPV_nolen_const(sv);
2152 TAINT_PROPER("truncate");
2154 if (truncate(name, len) < 0)
2160 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2163 if (my_chsize(tmpfd, len) < 0)
2165 PerlLIO_close(tmpfd);
2174 SETERRNO(EBADF,RMS_IFI);
2188 const unsigned int func = POPu;
2189 const int optype = PL_op->op_type;
2193 IO *io = gv ? GvIOn(gv) : 0;
2195 if (!io || !argsv || !IoIFP(io)) {
2196 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2197 report_evil_fh(gv, io, PL_op->op_type);
2198 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2202 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2205 s = SvPV_force(argsv, len);
2206 need = IOCPARM_LEN(func);
2208 s = Sv_Grow(argsv, need + 1);
2209 SvCUR_set(argsv, need);
2212 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2215 retval = SvIV(argsv);
2216 s = INT2PTR(char*,retval); /* ouch */
2219 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2221 if (optype == OP_IOCTL)
2223 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2225 DIE(aTHX_ "ioctl is not implemented");
2229 DIE(aTHX_ "fcntl is not implemented");
2231 #if defined(OS2) && defined(__EMX__)
2232 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2234 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2238 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2240 if (s[SvCUR(argsv)] != 17)
2241 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2243 s[SvCUR(argsv)] = 0; /* put our null back */
2244 SvSETMAGIC(argsv); /* Assume it has changed */
2253 PUSHp(zero_but_true, ZBTLEN);
2274 if (gv && (io = GvIO(gv)))
2281 (void)PerlIO_flush(fp);
2282 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2285 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2286 report_evil_fh(gv, io, PL_op->op_type);
2288 SETERRNO(EBADF,RMS_IFI);
2293 DIE(aTHX_ PL_no_func, "flock()");
2305 int protocol = POPi;
2311 io = gv ? GvIOn(gv) : NULL;
2314 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2315 report_evil_fh(gv, io, PL_op->op_type);
2317 do_close(gv, FALSE);
2318 SETERRNO(EBADF,LIB_INVARG);
2323 do_close(gv, FALSE);
2325 TAINT_PROPER("socket");
2326 fd = PerlSock_socket(domain, type, protocol);
2329 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2330 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2331 IoTYPE(io) = IoTYPE_SOCKET;
2332 if (!IoIFP(io) || !IoOFP(io)) {
2333 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2334 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2335 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2338 #if defined(HAS_FCNTL) && defined(F_SETFD)
2339 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2343 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2348 DIE(aTHX_ PL_no_sock_func, "socket");
2354 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2360 int protocol = POPi;
2367 io1 = gv1 ? GvIOn(gv1) : NULL;
2368 io2 = gv2 ? GvIOn(gv2) : NULL;
2369 if (!gv1 || !gv2 || !io1 || !io2) {
2370 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2372 report_evil_fh(gv1, io1, PL_op->op_type);
2374 report_evil_fh(gv1, io2, PL_op->op_type);
2377 do_close(gv1, FALSE);
2379 do_close(gv2, FALSE);
2384 do_close(gv1, FALSE);
2386 do_close(gv2, FALSE);
2388 TAINT_PROPER("socketpair");
2389 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2391 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2392 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2393 IoTYPE(io1) = IoTYPE_SOCKET;
2394 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2395 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2396 IoTYPE(io2) = IoTYPE_SOCKET;
2397 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2398 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2399 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2400 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2401 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2402 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2403 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2406 #if defined(HAS_FCNTL) && defined(F_SETFD)
2407 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2408 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2413 DIE(aTHX_ PL_no_sock_func, "socketpair");
2421 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2422 extern void GETPRIVMODE();
2423 extern void GETUSERMODE();
2426 /* OK, so on what platform does bind modify addr? */
2429 register IO *io = GvIOn(gv);
2433 int mpeprivmode = 0;
2436 if (!io || !IoIFP(io))
2439 addr = SvPV_const(addrsv, len);
2440 TAINT_PROPER("bind");
2441 #ifdef MPE /* Deal with MPE bind() peculiarities */
2442 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2443 /* The address *MUST* stupidly be zero. */
2444 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2445 /* PRIV mode is required to bind() to ports < 1024. */
2446 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2447 ((struct sockaddr_in *)addr)->sin_port > 0) {
2448 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2453 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2454 (struct sockaddr *)addr, len) >= 0)
2457 #ifdef MPE /* Switch back to USER mode */
2468 if (ckWARN(WARN_CLOSED))
2469 report_evil_fh(gv, io, PL_op->op_type);
2470 SETERRNO(EBADF,SS_IVCHAN);
2473 DIE(aTHX_ PL_no_sock_func, "bind");
2484 register IO *io = GvIOn(gv);
2487 if (!io || !IoIFP(io))
2490 addr = SvPV_const(addrsv, len);
2491 TAINT_PROPER("connect");
2492 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2498 if (ckWARN(WARN_CLOSED))
2499 report_evil_fh(gv, io, PL_op->op_type);
2500 SETERRNO(EBADF,SS_IVCHAN);
2503 DIE(aTHX_ PL_no_sock_func, "connect");
2513 register IO *io = gv ? GvIOn(gv) : NULL;
2515 if (!gv || !io || !IoIFP(io))
2518 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2524 if (ckWARN(WARN_CLOSED))
2525 report_evil_fh(gv, io, PL_op->op_type);
2526 SETERRNO(EBADF,SS_IVCHAN);
2529 DIE(aTHX_ PL_no_sock_func, "listen");
2541 char namebuf[MAXPATHLEN];
2542 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2543 Sock_size_t len = sizeof (struct sockaddr_in);
2545 Sock_size_t len = sizeof namebuf;
2558 if (!gstio || !IoIFP(gstio))
2562 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2566 do_close(ngv, FALSE);
2567 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2568 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2569 IoTYPE(nstio) = IoTYPE_SOCKET;
2570 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2571 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2572 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2573 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2576 #if defined(HAS_FCNTL) && defined(F_SETFD)
2577 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2581 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2582 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2584 #ifdef __SCO_VERSION__
2585 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2588 PUSHp(namebuf, len);
2592 if (ckWARN(WARN_CLOSED))
2593 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2594 SETERRNO(EBADF,SS_IVCHAN);
2600 DIE(aTHX_ PL_no_sock_func, "accept");
2610 register IO *io = GvIOn(gv);
2612 if (!io || !IoIFP(io))
2615 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2619 if (ckWARN(WARN_CLOSED))
2620 report_evil_fh(gv, io, PL_op->op_type);
2621 SETERRNO(EBADF,SS_IVCHAN);
2624 DIE(aTHX_ PL_no_sock_func, "shutdown");
2630 return pp_ssockopt();
2637 int optype = PL_op->op_type;
2640 unsigned int optname;
2646 if (optype == OP_GSOCKOPT)
2647 sv = sv_2mortal(NEWSV(22, 257));
2650 optname = (unsigned int) POPi;
2651 lvl = (unsigned int) POPi;
2655 if (!io || !IoIFP(io))
2658 fd = PerlIO_fileno(IoIFP(io));
2662 (void)SvPOK_only(sv);
2666 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2673 #if defined(__SYMBIAN32__)
2674 # define SETSOCKOPT_OPTION_VALUE_T void *
2676 # define SETSOCKOPT_OPTION_VALUE_T const char *
2678 /* XXX TODO: We need to have a proper type (a Configure probe,
2679 * etc.) for what the C headers think of the third argument of
2680 * setsockopt(), the option_value read-only buffer: is it
2681 * a "char *", or a "void *", const or not. Some compilers
2682 * don't take kindly to e.g. assuming that "char *" implicitly
2683 * promotes to a "void *", or to explicitly promoting/demoting
2684 * consts to non/vice versa. The "const void *" is the SUS
2685 * definition, but that does not fly everywhere for the above
2687 SETSOCKOPT_OPTION_VALUE_T buf;
2691 buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
2695 aint = (int)SvIV(sv);
2696 buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
2699 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2708 if (ckWARN(WARN_CLOSED))
2709 report_evil_fh(gv, io, optype);
2710 SETERRNO(EBADF,SS_IVCHAN);
2715 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
2721 return pp_getpeername();
2728 int optype = PL_op->op_type;
2732 register IO *io = GvIOn(gv);
2735 if (!io || !IoIFP(io))
2738 sv = sv_2mortal(NEWSV(22, 257));
2739 (void)SvPOK_only(sv);
2743 fd = PerlIO_fileno(IoIFP(io));
2745 case OP_GETSOCKNAME:
2746 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2749 case OP_GETPEERNAME:
2750 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2752 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2754 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";
2755 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2756 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2757 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
2758 sizeof(u_short) + sizeof(struct in_addr))) {
2765 #ifdef BOGUS_GETNAME_RETURN
2766 /* Interactive Unix, getpeername() and getsockname()
2767 does not return valid namelen */
2768 if (len == BOGUS_GETNAME_RETURN)
2769 len = sizeof(struct sockaddr);
2777 if (ckWARN(WARN_CLOSED))
2778 report_evil_fh(gv, io, optype);
2779 SETERRNO(EBADF,SS_IVCHAN);
2784 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
2802 if (PL_op->op_flags & OPf_REF) {
2804 if (PL_op->op_type == OP_LSTAT) {
2805 if (gv != PL_defgv) {
2806 if (ckWARN(WARN_IO))
2807 Perl_warner(aTHX_ packWARN(WARN_IO),
2808 "lstat() on filehandle %s", GvENAME(gv));
2809 } else if (PL_laststype != OP_LSTAT)
2810 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2814 if (gv != PL_defgv) {
2815 PL_laststype = OP_STAT;
2817 sv_setpvn(PL_statname, "", 0);
2818 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2819 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2821 if (PL_laststatval < 0) {
2822 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2823 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2829 if (SvTYPE(sv) == SVt_PVGV) {
2833 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2835 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2836 Perl_warner(aTHX_ packWARN(WARN_IO),
2837 "lstat() on filehandle %s", GvENAME(gv));
2840 sv_setpv(PL_statname, SvPV_nolen_const(sv));
2842 PL_laststype = PL_op->op_type;
2843 if (PL_op->op_type == OP_LSTAT)
2844 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
2846 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
2847 if (PL_laststatval < 0) {
2848 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
2849 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2855 if (gimme != G_ARRAY) {
2856 if (gimme != G_VOID)
2857 XPUSHs(boolSV(max));
2863 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2864 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2865 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2866 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2867 #if Uid_t_size > IVSIZE
2868 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2870 # if Uid_t_sign <= 0
2871 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2873 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2876 #if Gid_t_size > IVSIZE
2877 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2879 # if Gid_t_sign <= 0
2880 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2882 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2885 #ifdef USE_STAT_RDEV
2886 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2888 PUSHs(sv_2mortal(newSVpvn("", 0)));
2890 #if Off_t_size > IVSIZE
2891 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2893 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2896 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2897 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2898 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2900 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2901 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2902 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2904 #ifdef USE_STAT_BLOCKS
2905 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2906 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2908 PUSHs(sv_2mortal(newSVpvn("", 0)));
2909 PUSHs(sv_2mortal(newSVpvn("", 0)));
2915 /* This macro is used by the stacked filetest operators :
2916 * if the previous filetest failed, short-circuit and pass its value.
2917 * Else, discard it from the stack and continue. --rgs
2919 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2920 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2921 else { (void)POPs; PUTBACK; } \
2928 STACKED_FTEST_CHECK;
2929 #if defined(HAS_ACCESS) && defined(R_OK)
2930 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2931 result = access(POPpx, R_OK);
2946 if (cando(S_IRUSR, 0, &PL_statcache))
2955 STACKED_FTEST_CHECK;
2956 #if defined(HAS_ACCESS) && defined(W_OK)
2957 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2958 result = access(POPpx, W_OK);
2973 if (cando(S_IWUSR, 0, &PL_statcache))
2982 STACKED_FTEST_CHECK;
2983 #if defined(HAS_ACCESS) && defined(X_OK)
2984 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2985 result = access(POPpx, X_OK);
3000 if (cando(S_IXUSR, 0, &PL_statcache))
3009 STACKED_FTEST_CHECK;
3010 #ifdef PERL_EFF_ACCESS_R_OK
3011 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3012 result = PERL_EFF_ACCESS_R_OK(POPpx);
3027 if (cando(S_IRUSR, 1, &PL_statcache))
3036 STACKED_FTEST_CHECK;
3037 #ifdef PERL_EFF_ACCESS_W_OK
3038 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3039 result = PERL_EFF_ACCESS_W_OK(POPpx);
3054 if (cando(S_IWUSR, 1, &PL_statcache))
3063 STACKED_FTEST_CHECK;
3064 #ifdef PERL_EFF_ACCESS_X_OK
3065 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3066 result = PERL_EFF_ACCESS_X_OK(POPpx);
3081 if (cando(S_IXUSR, 1, &PL_statcache))
3090 STACKED_FTEST_CHECK;
3100 return pp_ftrowned();
3107 STACKED_FTEST_CHECK;
3112 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3122 STACKED_FTEST_CHECK;
3127 if (PL_statcache.st_size == 0)
3136 STACKED_FTEST_CHECK;
3141 #if Off_t_size > IVSIZE
3142 PUSHn(PL_statcache.st_size);
3144 PUSHi(PL_statcache.st_size);
3153 STACKED_FTEST_CHECK;
3158 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3166 STACKED_FTEST_CHECK;
3171 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3179 STACKED_FTEST_CHECK;
3184 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3192 STACKED_FTEST_CHECK;
3197 if (S_ISSOCK(PL_statcache.st_mode))
3206 STACKED_FTEST_CHECK;
3211 if (S_ISCHR(PL_statcache.st_mode))
3220 STACKED_FTEST_CHECK;
3225 if (S_ISBLK(PL_statcache.st_mode))
3234 STACKED_FTEST_CHECK;
3239 if (S_ISREG(PL_statcache.st_mode))
3248 STACKED_FTEST_CHECK;
3253 if (S_ISDIR(PL_statcache.st_mode))
3262 STACKED_FTEST_CHECK;
3267 if (S_ISFIFO(PL_statcache.st_mode))
3274 I32 result = my_lstat();
3278 if (S_ISLNK(PL_statcache.st_mode))
3288 STACKED_FTEST_CHECK;
3293 if (PL_statcache.st_mode & S_ISUID)
3304 STACKED_FTEST_CHECK;
3309 if (PL_statcache.st_mode & S_ISGID)
3320 STACKED_FTEST_CHECK;
3325 if (PL_statcache.st_mode & S_ISVTX)
3338 STACKED_FTEST_CHECK;
3340 if (PL_op->op_flags & OPf_REF)
3342 else if (isGV(TOPs))
3344 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3345 gv = (GV*)SvRV(POPs);
3347 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
3349 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3350 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3351 else if (tmpsv && SvOK(tmpsv)) {
3352 const char *tmps = SvPV_nolen_const(tmpsv);
3360 if (PerlLIO_isatty(fd))
3365 #if defined(atarist) /* this will work with atariST. Configure will
3366 make guesses for other systems. */
3367 # define FILE_base(f) ((f)->_base)
3368 # define FILE_ptr(f) ((f)->_ptr)
3369 # define FILE_cnt(f) ((f)->_cnt)
3370 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3380 register STDCHAR *s;
3386 STACKED_FTEST_CHECK;
3388 if (PL_op->op_flags & OPf_REF)
3390 else if (isGV(TOPs))
3392 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3393 gv = (GV*)SvRV(POPs);
3399 if (gv == PL_defgv) {
3401 io = GvIO(PL_statgv);
3404 goto really_filename;
3409 PL_laststatval = -1;
3410 sv_setpvn(PL_statname, "", 0);
3411 io = GvIO(PL_statgv);
3413 if (io && IoIFP(io)) {
3414 if (! PerlIO_has_base(IoIFP(io)))
3415 DIE(aTHX_ "-T and -B not implemented on filehandles");
3416 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3417 if (PL_laststatval < 0)
3419 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3420 if (PL_op->op_type == OP_FTTEXT)
3425 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3426 i = PerlIO_getc(IoIFP(io));
3428 (void)PerlIO_ungetc(IoIFP(io),i);
3430 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3432 len = PerlIO_get_bufsiz(IoIFP(io));
3433 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3434 /* sfio can have large buffers - limit to 512 */
3439 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3441 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3443 SETERRNO(EBADF,RMS_IFI);
3451 PL_laststype = OP_STAT;
3452 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3453 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
3454 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3456 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3459 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3460 if (PL_laststatval < 0) {
3461 (void)PerlIO_close(fp);
3464 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3465 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3466 (void)PerlIO_close(fp);
3468 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3469 RETPUSHNO; /* special case NFS directories */
3470 RETPUSHYES; /* null file is anything */
3475 /* now scan s to look for textiness */
3476 /* XXX ASCII dependent code */
3478 #if defined(DOSISH) || defined(USEMYBINMODE)
3479 /* ignore trailing ^Z on short files */
3480 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3484 for (i = 0; i < len; i++, s++) {
3485 if (!*s) { /* null never allowed in text */
3490 else if (!(isPRINT(*s) || isSPACE(*s)))
3493 else if (*s & 128) {
3495 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3498 /* utf8 characters don't count as odd */
3499 if (UTF8_IS_START(*s)) {
3500 int ulen = UTF8SKIP(s);
3501 if (ulen < len - i) {
3503 for (j = 1; j < ulen; j++) {
3504 if (!UTF8_IS_CONTINUATION(s[j]))
3507 --ulen; /* loop does extra increment */
3517 *s != '\n' && *s != '\r' && *s != '\b' &&
3518 *s != '\t' && *s != '\f' && *s != 27)
3523 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3539 const char *tmps = 0;
3543 SV * const sv = POPs;
3544 if (SvTYPE(sv) == SVt_PVGV) {
3547 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
3551 tmps = SvPVx_nolen_const(sv);
3555 if( !gv && (!tmps || !*tmps) ) {
3556 HV * const table = GvHVn(PL_envgv);
3559 if ( (svp = hv_fetch(table, "HOME", 4, FALSE))
3560 || (svp = hv_fetch(table, "LOGDIR", 6, FALSE))
3562 || (svp = hv_fetch(table, "SYS$LOGIN", 9, FALSE))
3567 deprecate("chdir('') or chdir(undef) as chdir()");
3568 tmps = SvPV_nolen_const(*svp);
3572 TAINT_PROPER("chdir");
3577 TAINT_PROPER("chdir");
3580 IO* const io = GvIO(gv);
3583 PUSHi(fchdir(PerlIO_fileno(IoIFP(io))) >= 0);
3585 else if (IoDIRP(io)) {
3587 PUSHi(fchdir(dirfd(IoDIRP(io))) >= 0);
3589 DIE(aTHX_ PL_no_func, "dirfd");
3600 DIE(aTHX_ PL_no_func, "fchdir");
3604 PUSHi( PerlDir_chdir(tmps) >= 0 );
3606 /* Clear the DEFAULT element of ENV so we'll get the new value
3608 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3616 dSP; dMARK; dTARGET;
3617 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3623 DIE(aTHX_ PL_no_func, "chown");
3632 TAINT_PROPER("chroot");
3633 PUSHi( chroot(tmps) >= 0 );
3636 DIE(aTHX_ PL_no_func, "chroot");
3642 dSP; dMARK; dTARGET;
3644 value = (I32)apply(PL_op->op_type, MARK, SP);
3652 dSP; dMARK; dTARGET;
3654 value = (I32)apply(PL_op->op_type, MARK, SP);
3662 dSP; dMARK; dTARGET;
3664 value = (I32)apply(PL_op->op_type, MARK, SP);
3674 const char *tmps2 = POPpconstx;
3675 const char *tmps = SvPV_nolen_const(TOPs);
3676 TAINT_PROPER("rename");
3678 anum = PerlLIO_rename(tmps, tmps2);
3680 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3681 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3684 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3685 (void)UNLINK(tmps2);
3686 if (!(anum = link(tmps, tmps2)))
3687 anum = UNLINK(tmps);
3699 const char *tmps2 = POPpconstx;
3700 const char *tmps = SvPV_nolen_const(TOPs);
3701 TAINT_PROPER("link");
3702 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3705 DIE(aTHX_ PL_no_func, "link");
3713 const char *tmps2 = POPpconstx;
3714 const char *tmps = SvPV_nolen_const(TOPs);
3715 TAINT_PROPER("symlink");
3716 SETi( symlink(tmps, tmps2) >= 0 );
3719 DIE(aTHX_ PL_no_func, "symlink");
3729 char buf[MAXPATHLEN];
3732 #ifndef INCOMPLETE_TAINTS
3736 len = readlink(tmps, buf, sizeof(buf) - 1);
3744 RETSETUNDEF; /* just pretend it's a normal file */
3748 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3750 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3752 char * const save_filename = filename;
3758 Newx(cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3759 strcpy(cmdline, cmd);
3760 strcat(cmdline, " ");
3761 for (s = cmdline + strlen(cmdline); *filename; ) {
3766 myfp = PerlProc_popen(cmdline, "r");
3770 SV *tmpsv = sv_newmortal();
3771 /* Need to save/restore 'PL_rs' ?? */
3772 s = sv_gets(tmpsv, myfp, 0);
3773 (void)PerlProc_pclose(myfp);
3777 #ifdef HAS_SYS_ERRLIST
3782 /* you don't see this */
3784 #ifdef HAS_SYS_ERRLIST
3792 if (instr(s, errmsg)) {
3799 #define EACCES EPERM
3801 if (instr(s, "cannot make"))
3802 SETERRNO(EEXIST,RMS_FEX);
3803 else if (instr(s, "existing file"))
3804 SETERRNO(EEXIST,RMS_FEX);
3805 else if (instr(s, "ile exists"))
3806 SETERRNO(EEXIST,RMS_FEX);
3807 else if (instr(s, "non-exist"))
3808 SETERRNO(ENOENT,RMS_FNF);
3809 else if (instr(s, "does not exist"))
3810 SETERRNO(ENOENT,RMS_FNF);
3811 else if (instr(s, "not empty"))
3812 SETERRNO(EBUSY,SS_DEVOFFLINE);
3813 else if (instr(s, "cannot access"))
3814 SETERRNO(EACCES,RMS_PRV);
3816 SETERRNO(EPERM,RMS_PRV);
3819 else { /* some mkdirs return no failure indication */
3820 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3821 if (PL_op->op_type == OP_RMDIR)
3826 SETERRNO(EACCES,RMS_PRV); /* a guess */
3835 /* This macro removes trailing slashes from a directory name.
3836 * Different operating and file systems take differently to
3837 * trailing slashes. According to POSIX 1003.1 1996 Edition
3838 * any number of trailing slashes should be allowed.
3839 * Thusly we snip them away so that even non-conforming
3840 * systems are happy.
3841 * We should probably do this "filtering" for all
3842 * the functions that expect (potentially) directory names:
3843 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3844 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3846 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3847 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3850 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3851 (tmps) = savepvn((tmps), (len)); \
3871 TRIMSLASHES(tmps,len,copy);
3873 TAINT_PROPER("mkdir");
3875 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3877 SETi( dooneliner("mkdir", tmps) );
3878 oldumask = PerlLIO_umask(0);
3879 PerlLIO_umask(oldumask);
3880 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3894 TRIMSLASHES(tmps,len,copy);
3895 TAINT_PROPER("rmdir");
3897 SETi( PerlDir_rmdir(tmps) >= 0 );
3899 SETi( dooneliner("rmdir", tmps) );
3906 /* Directory calls. */
3910 #if defined(Direntry_t) && defined(HAS_READDIR)
3912 const char *dirname = POPpconstx;
3914 register IO *io = GvIOn(gv);
3920 PerlDir_close(IoDIRP(io));
3921 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3927 SETERRNO(EBADF,RMS_DIR);
3930 DIE(aTHX_ PL_no_dir_func, "opendir");
3936 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3937 DIE(aTHX_ PL_no_dir_func, "readdir");
3939 #if !defined(I_DIRENT) && !defined(VMS)
3940 Direntry_t *readdir (DIR *);
3945 const I32 gimme = GIMME;
3946 GV *gv = (GV *)POPs;
3947 register Direntry_t *dp;
3948 register IO *io = GvIOn(gv);
3950 if (!io || !IoDIRP(io))
3954 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3958 sv = newSVpvn(dp->d_name, dp->d_namlen);
3960 sv = newSVpv(dp->d_name, 0);
3962 #ifndef INCOMPLETE_TAINTS
3963 if (!(IoFLAGS(io) & IOf_UNTAINT))
3966 XPUSHs(sv_2mortal(sv));
3968 while (gimme == G_ARRAY);
3970 if (!dp && gimme != G_ARRAY)
3977 SETERRNO(EBADF,RMS_ISI);
3978 if (GIMME == G_ARRAY)
3987 #if defined(HAS_TELLDIR) || defined(telldir)
3989 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3990 /* XXX netbsd still seemed to.
3991 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3992 --JHI 1999-Feb-02 */
3993 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3994 long telldir (DIR *);
3997 register IO *io = GvIOn(gv);
3999 if (!io || !IoDIRP(io))
4002 PUSHi( PerlDir_tell(IoDIRP(io)) );
4006 SETERRNO(EBADF,RMS_ISI);
4009 DIE(aTHX_ PL_no_dir_func, "telldir");
4015 #if defined(HAS_SEEKDIR) || defined(seekdir)
4019 register IO *io = GvIOn(gv);
4021 if (!io || !IoDIRP(io))
4024 (void)PerlDir_seek(IoDIRP(io), along);
4029 SETERRNO(EBADF,RMS_ISI);
4032 DIE(aTHX_ PL_no_dir_func, "seekdir");
4038 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4041 register IO *io = GvIOn(gv);
4043 if (!io || !IoDIRP(io))
4046 (void)PerlDir_rewind(IoDIRP(io));
4050 SETERRNO(EBADF,RMS_ISI);
4053 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4059 #if defined(Direntry_t) && defined(HAS_READDIR)
4062 register IO *io = GvIOn(gv);
4064 if (!io || !IoDIRP(io))
4067 #ifdef VOID_CLOSEDIR
4068 PerlDir_close(IoDIRP(io));
4070 if (PerlDir_close(IoDIRP(io)) < 0) {
4071 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4080 SETERRNO(EBADF,RMS_IFI);
4083 DIE(aTHX_ PL_no_dir_func, "closedir");
4087 /* Process control. */
4097 PERL_FLUSHALL_FOR_CHILD;
4098 childpid = PerlProc_fork();
4102 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4103 SvREADONLY_off(GvSV(tmpgv));
4104 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4105 SvREADONLY_on(GvSV(tmpgv));
4107 #ifdef THREADS_HAVE_PIDS
4108 PL_ppid = (IV)getppid();
4110 #ifdef PERL_USES_PL_PIDSTATUS
4111 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4117 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4122 PERL_FLUSHALL_FOR_CHILD;
4123 childpid = PerlProc_fork();
4129 DIE(aTHX_ PL_no_func, "fork");
4136 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4141 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4142 childpid = wait4pid(-1, &argflags, 0);
4144 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4149 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4150 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4151 STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
4153 STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
4158 DIE(aTHX_ PL_no_func, "wait");
4164 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4173 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4174 result = wait4pid(pid, &argflags, optype);
4176 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4181 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4182 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4183 STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
4185 STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
4190 DIE(aTHX_ PL_no_func, "waitpid");
4196 dSP; dMARK; dORIGMARK; dTARGET;
4202 while (++MARK <= SP) {
4203 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4208 TAINT_PROPER("system");
4210 PERL_FLUSHALL_FOR_CHILD;
4211 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4217 if (PerlProc_pipe(pp) >= 0)
4219 while ((childpid = PerlProc_fork()) == -1) {
4220 if (errno != EAGAIN) {
4225 PerlLIO_close(pp[0]);
4226 PerlLIO_close(pp[1]);
4233 Sigsave_t ihand,qhand; /* place to save signals during system() */
4237 PerlLIO_close(pp[1]);
4239 rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
4240 rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
4243 result = wait4pid(childpid, &status, 0);
4244 } while (result == -1 && errno == EINTR);
4246 (void)rsignal_restore(SIGINT, &ihand);
4247 (void)rsignal_restore(SIGQUIT, &qhand);
4249 STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
4250 do_execfree(); /* free any memory child malloced on fork */
4256 while (n < sizeof(int)) {
4257 n1 = PerlLIO_read(pp[0],
4258 (void*)(((char*)&errkid)+n),
4264 PerlLIO_close(pp[0]);
4265 if (n) { /* Error */
4266 if (n != sizeof(int))
4267 DIE(aTHX_ "panic: kid popen errno read");
4268 errno = errkid; /* Propagate errno from kid */
4269 STATUS_NATIVE_CHILD_SET(-1);
4272 PUSHi(STATUS_CURRENT);
4276 PerlLIO_close(pp[0]);
4277 #if defined(HAS_FCNTL) && defined(F_SETFD)
4278 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4281 if (PL_op->op_flags & OPf_STACKED) {
4282 SV *really = *++MARK;
4283 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4285 else if (SP - MARK != 1)
4286 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4288 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
4292 #else /* ! FORK or VMS or OS/2 */
4295 if (PL_op->op_flags & OPf_STACKED) {
4296 SV *really = *++MARK;
4297 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4298 value = (I32)do_aspawn(really, MARK, SP);
4300 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4303 else if (SP - MARK != 1) {
4304 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4305 value = (I32)do_aspawn(Nullsv, MARK, SP);
4307 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4311 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4313 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4315 STATUS_NATIVE_CHILD_SET(value);
4318 PUSHi(result ? value : STATUS_CURRENT);
4319 #endif /* !FORK or VMS */
4325 dSP; dMARK; dORIGMARK; dTARGET;
4330 while (++MARK <= SP) {
4331 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4336 TAINT_PROPER("exec");
4338 PERL_FLUSHALL_FOR_CHILD;
4339 if (PL_op->op_flags & OPf_STACKED) {
4340 SV *really = *++MARK;
4341 value = (I32)do_aexec(really, MARK, SP);
4343 else if (SP - MARK != 1)
4345 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4349 (void ) do_aspawn(Nullsv, MARK, SP);
4353 value = (I32)do_aexec(Nullsv, MARK, SP);
4358 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4361 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4364 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4377 dSP; dMARK; dTARGET;
4379 value = (I32)apply(PL_op->op_type, MARK, SP);
4384 DIE(aTHX_ PL_no_func, "kill");
4392 # ifdef THREADS_HAVE_PIDS
4393 if (PL_ppid != 1 && getppid() == 1)
4394 /* maybe the parent process has died. Refresh ppid cache */
4398 XPUSHi( getppid() );
4402 DIE(aTHX_ PL_no_func, "getppid");
4418 pgrp = (I32)BSD_GETPGRP(pid);
4420 if (pid != 0 && pid != PerlProc_getpid())
4421 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4427 DIE(aTHX_ PL_no_func, "getpgrp()");
4446 TAINT_PROPER("setpgrp");
4448 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4450 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4451 || (pid != 0 && pid != PerlProc_getpid()))
4453 DIE(aTHX_ "setpgrp can't take arguments");
4455 SETi( setpgrp() >= 0 );
4456 #endif /* USE_BSDPGRP */
4459 DIE(aTHX_ PL_no_func, "setpgrp()");
4465 #ifdef HAS_GETPRIORITY
4469 SETi( getpriority(which, who) );
4472 DIE(aTHX_ PL_no_func, "getpriority()");
4478 #ifdef HAS_SETPRIORITY
4483 TAINT_PROPER("setpriority");
4484 SETi( setpriority(which, who, niceval) >= 0 );
4487 DIE(aTHX_ PL_no_func, "setpriority()");
4497 XPUSHn( time(Null(Time_t*)) );
4499 XPUSHi( time(Null(Time_t*)) );
4510 (void)PerlProc_times(&PL_timesbuf);
4512 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4513 /* struct tms, though same data */
4517 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4518 if (GIMME == G_ARRAY) {
4519 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4520 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4521 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4527 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4529 if (GIMME == G_ARRAY) {
4530 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4531 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4532 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4536 DIE(aTHX_ "times not implemented");
4538 #endif /* HAS_TIMES */
4546 #ifdef LOCALTIME_EDGECASE_BROKEN
4547 static struct tm *S_my_localtime (pTHX_ Time_t *tp)
4552 /* No workarounds in the valid range */
4553 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4554 return (localtime (tp));
4556 /* This edge case is to workaround the undefined behaviour, where the
4557 * TIMEZONE makes the time go beyond the defined range.
4558 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4559 * If there is a negative offset in TZ, like MET-1METDST, some broken
4560 * implementations of localtime () (like AIX 5.2) barf with bogus
4562 * 0x7fffffff gmtime 2038-01-19 03:14:07
4563 * 0x7fffffff localtime 1901-12-13 21:45:51
4564 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4565 * 0x3c19137f gmtime 2001-12-13 20:45:51
4566 * 0x3c19137f localtime 2001-12-13 21:45:51
4567 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4568 * Given that legal timezones are typically between GMT-12 and GMT+12
4569 * we turn back the clock 23 hours before calling the localtime
4570 * function, and add those to the return value. This will never cause
4571 * day wrapping problems, since the edge case is Tue Jan *19*
4573 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4576 if (P->tm_hour >= 24) {
4578 P->tm_mday++; /* 18 -> 19 */
4579 P->tm_wday++; /* Mon -> Tue */
4580 P->tm_yday++; /* 18 -> 19 */
4583 } /* S_my_localtime */
4590 const struct tm *tmbuf;
4591 static const char * const dayname[] =
4592 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4593 static const char * const monname[] =
4594 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4595 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4601 when = (Time_t)SvNVx(POPs);
4603 when = (Time_t)SvIVx(POPs);
4606 if (PL_op->op_type == OP_LOCALTIME)
4607 #ifdef LOCALTIME_EDGECASE_BROKEN
4608 tmbuf = S_my_localtime(aTHX_ &when);
4610 tmbuf = localtime(&when);
4613 tmbuf = gmtime(&when);
4615 if (GIMME != G_ARRAY) {
4621 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4622 dayname[tmbuf->tm_wday],
4623 monname[tmbuf->tm_mon],
4628 tmbuf->tm_year + 1900);
4629 PUSHs(sv_2mortal(tsv));
4634 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4635 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4636 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4637 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4638 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4639 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4640 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4641 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4642 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4653 anum = alarm((unsigned int)anum);
4660 DIE(aTHX_ PL_no_func, "alarm");
4671 (void)time(&lasttime);
4676 PerlProc_sleep((unsigned int)duration);
4679 XPUSHi(when - lasttime);
4683 /* Shared memory. */
4697 return pp_shmwrite();
4702 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4703 dSP; dMARK; dTARGET;
4704 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4713 /* Message passing. */
4727 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4728 dSP; dMARK; dTARGET;
4729 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4740 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4741 dSP; dMARK; dTARGET;
4742 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4755 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4756 dSP; dMARK; dTARGET;
4757 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4764 DIE(aTHX_ "System V IPC is not implemented on this machine");
4770 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4771 dSP; dMARK; dTARGET;
4772 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4780 PUSHp(zero_but_true, ZBTLEN);
4790 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4791 dSP; dMARK; dTARGET;
4792 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4801 /* Get system info. */
4805 return pp_ghostent();
4810 return pp_ghostent();
4815 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4817 I32 which = PL_op->op_type;
4818 register char **elem;
4820 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4821 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4822 struct hostent *gethostbyname(Netdb_name_t);
4823 struct hostent *gethostent(void);
4825 struct hostent *hent;
4829 if (which == OP_GHBYNAME) {
4830 #ifdef HAS_GETHOSTBYNAME
4831 char* name = POPpbytex;
4832 hent = PerlSock_gethostbyname(name);
4834 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4837 else if (which == OP_GHBYADDR) {
4838 #ifdef HAS_GETHOSTBYADDR
4839 int addrtype = POPi;
4842 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4844 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4846 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4850 #ifdef HAS_GETHOSTENT
4851 hent = PerlSock_gethostent();
4853 DIE(aTHX_ PL_no_sock_func, "gethostent");
4856 #ifdef HOST_NOT_FOUND
4858 #ifdef USE_REENTRANT_API
4859 # ifdef USE_GETHOSTENT_ERRNO
4860 h_errno = PL_reentrant_buffer->_gethostent_errno;
4863 STATUS_UNIX_SET(h_errno);
4867 if (GIMME != G_ARRAY) {
4868 PUSHs(sv = sv_newmortal());
4870 if (which == OP_GHBYNAME) {
4872 sv_setpvn(sv, hent->h_addr, hent->h_length);
4875 sv_setpv(sv, (char*)hent->h_name);
4881 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4882 sv_setpv(sv, (char*)hent->h_name);
4883 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4884 for (elem = hent->h_aliases; elem && *elem; elem++) {
4885 sv_catpv(sv, *elem);
4887 sv_catpvn(sv, " ", 1);
4889 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4890 sv_setiv(sv, (IV)hent->h_addrtype);
4891 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4892 len = hent->h_length;
4893 sv_setiv(sv, (IV)len);
4895 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4896 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4897 sv_setpvn(sv, *elem, len);
4900 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4902 sv_setpvn(sv, hent->h_addr, len);
4907 DIE(aTHX_ PL_no_sock_func, "gethostent");
4913 return pp_gnetent();
4918 return pp_gnetent();
4923 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4925 I32 which = PL_op->op_type;
4926 register char **elem;
4928 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4929 struct netent *getnetbyaddr(Netdb_net_t, int);
4930 struct netent *getnetbyname(Netdb_name_t);
4931 struct netent *getnetent(void);
4933 struct netent *nent;
4935 if (which == OP_GNBYNAME){
4936 #ifdef HAS_GETNETBYNAME
4937 char *name = POPpbytex;
4938 nent = PerlSock_getnetbyname(name);
4940 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4943 else if (which == OP_GNBYADDR) {
4944 #ifdef HAS_GETNETBYADDR
4945 int addrtype = POPi;
4946 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4947 nent = PerlSock_getnetbyaddr(addr, addrtype);
4949 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4953 #ifdef HAS_GETNETENT
4954 nent = PerlSock_getnetent();
4956 DIE(aTHX_ PL_no_sock_func, "getnetent");
4959 #ifdef HOST_NOT_FOUND
4961 #ifdef USE_REENTRANT_API
4962 # ifdef USE_GETNETENT_ERRNO
4963 h_errno = PL_reentrant_buffer->_getnetent_errno;
4966 STATUS_UNIX_SET(h_errno);
4971 if (GIMME != G_ARRAY) {
4972 PUSHs(sv = sv_newmortal());
4974 if (which == OP_GNBYNAME)
4975 sv_setiv(sv, (IV)nent->n_net);
4977 sv_setpv(sv, nent->n_name);
4983 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4984 sv_setpv(sv, nent->n_name);
4985 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4986 for (elem = nent->n_aliases; elem && *elem; elem++) {
4987 sv_catpv(sv, *elem);
4989 sv_catpvn(sv, " ", 1);
4991 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4992 sv_setiv(sv, (IV)nent->n_addrtype);
4993 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4994 sv_setiv(sv, (IV)nent->n_net);
4999 DIE(aTHX_ PL_no_sock_func, "getnetent");
5005 return pp_gprotoent();
5010 return pp_gprotoent();
5015 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
5017 I32 which = PL_op->op_type;
5018 register char **elem;
5020 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
5021 struct protoent *getprotobyname(Netdb_name_t);
5022 struct protoent *getprotobynumber(int);
5023 struct protoent *getprotoent(void);
5025 struct protoent *pent;
5027 if (which == OP_GPBYNAME) {
5028 #ifdef HAS_GETPROTOBYNAME
5029 char* name = POPpbytex;
5030 pent = PerlSock_getprotobyname(name);
5032 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
5035 else if (which == OP_GPBYNUMBER) {
5036 #ifdef HAS_GETPROTOBYNUMBER
5038 pent = PerlSock_getprotobynumber(number);
5040 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5044 #ifdef HAS_GETPROTOENT
5045 pent = PerlSock_getprotoent();
5047 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5051 if (GIMME != G_ARRAY) {
5052 PUSHs(sv = sv_newmortal());
5054 if (which == OP_GPBYNAME)
5055 sv_setiv(sv, (IV)pent->p_proto);
5057 sv_setpv(sv, pent->p_name);
5063 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5064 sv_setpv(sv, pent->p_name);
5065 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5066 for (elem = pent->p_aliases; elem && *elem; elem++) {
5067 sv_catpv(sv, *elem);
5069 sv_catpvn(sv, " ", 1);
5071 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5072 sv_setiv(sv, (IV)pent->p_proto);
5077 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5083 return pp_gservent();
5088 return pp_gservent();
5093 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5095 I32 which = PL_op->op_type;
5096 register char **elem;
5098 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5099 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5100 struct servent *getservbyport(int, Netdb_name_t);
5101 struct servent *getservent(void);
5103 struct servent *sent;
5105 if (which == OP_GSBYNAME) {
5106 #ifdef HAS_GETSERVBYNAME
5107 char *proto = POPpbytex;
5108 char *name = POPpbytex;
5110 if (proto && !*proto)
5113 sent = PerlSock_getservbyname(name, proto);
5115 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5118 else if (which == OP_GSBYPORT) {
5119 #ifdef HAS_GETSERVBYPORT
5120 char *proto = POPpbytex;
5121 unsigned short port = (unsigned short)POPu;
5123 if (proto && !*proto)
5127 port = PerlSock_htons(port);
5129 sent = PerlSock_getservbyport(port, proto);
5131 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5135 #ifdef HAS_GETSERVENT
5136 sent = PerlSock_getservent();
5138 DIE(aTHX_ PL_no_sock_func, "getservent");
5142 if (GIMME != G_ARRAY) {
5143 PUSHs(sv = sv_newmortal());
5145 if (which == OP_GSBYNAME) {
5147 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5149 sv_setiv(sv, (IV)(sent->s_port));
5153 sv_setpv(sv, sent->s_name);
5159 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5160 sv_setpv(sv, sent->s_name);
5161 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5162 for (elem = sent->s_aliases; elem && *elem; elem++) {
5163 sv_catpv(sv, *elem);
5165 sv_catpvn(sv, " ", 1);
5167 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5169 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5171 sv_setiv(sv, (IV)(sent->s_port));
5173 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5174 sv_setpv(sv, sent->s_proto);
5179 DIE(aTHX_ PL_no_sock_func, "getservent");
5185 #ifdef HAS_SETHOSTENT
5187 PerlSock_sethostent(TOPi);
5190 DIE(aTHX_ PL_no_sock_func, "sethostent");
5196 #ifdef HAS_SETNETENT
5198 PerlSock_setnetent(TOPi);
5201 DIE(aTHX_ PL_no_sock_func, "setnetent");
5207 #ifdef HAS_SETPROTOENT
5209 PerlSock_setprotoent(TOPi);
5212 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5218 #ifdef HAS_SETSERVENT
5220 PerlSock_setservent(TOPi);
5223 DIE(aTHX_ PL_no_sock_func, "setservent");
5229 #ifdef HAS_ENDHOSTENT
5231 PerlSock_endhostent();
5235 DIE(aTHX_ PL_no_sock_func, "endhostent");
5241 #ifdef HAS_ENDNETENT
5243 PerlSock_endnetent();
5247 DIE(aTHX_ PL_no_sock_func, "endnetent");
5253 #ifdef HAS_ENDPROTOENT
5255 PerlSock_endprotoent();
5259 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5265 #ifdef HAS_ENDSERVENT
5267 PerlSock_endservent();
5271 DIE(aTHX_ PL_no_sock_func, "endservent");
5289 I32 which = PL_op->op_type;
5291 struct passwd *pwent = NULL;
5293 * We currently support only the SysV getsp* shadow password interface.
5294 * The interface is declared in <shadow.h> and often one needs to link
5295 * with -lsecurity or some such.
5296 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5299 * AIX getpwnam() is clever enough to return the encrypted password
5300 * only if the caller (euid?) is root.
5302 * There are at least three other shadow password APIs. Many platforms
5303 * seem to contain more than one interface for accessing the shadow
5304 * password databases, possibly for compatibility reasons.
5305 * The getsp*() is by far he simplest one, the other two interfaces
5306 * are much more complicated, but also very similar to each other.
5311 * struct pr_passwd *getprpw*();
5312 * The password is in
5313 * char getprpw*(...).ufld.fd_encrypt[]
5314 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5319 * struct es_passwd *getespw*();
5320 * The password is in
5321 * char *(getespw*(...).ufld.fd_encrypt)
5322 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5325 * struct userpw *getuserpw();
5326 * The password is in
5327 * char *(getuserpw(...)).spw_upw_passwd
5328 * (but the de facto standard getpwnam() should work okay)
5330 * Mention I_PROT here so that Configure probes for it.
5332 * In HP-UX for getprpw*() the manual page claims that one should include
5333 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5334 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5335 * and pp_sys.c already includes <shadow.h> if there is such.
5337 * Note that <sys/security.h> is already probed for, but currently
5338 * it is only included in special cases.
5340 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5341 * be preferred interface, even though also the getprpw*() interface
5342 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5343 * One also needs to call set_auth_parameters() in main() before
5344 * doing anything else, whether one is using getespw*() or getprpw*().
5346 * Note that accessing the shadow databases can be magnitudes
5347 * slower than accessing the standard databases.
5352 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5353 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5354 * the pw_comment is left uninitialized. */
5355 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5361 char* name = POPpbytex;
5362 pwent = getpwnam(name);
5368 pwent = getpwuid(uid);
5372 # ifdef HAS_GETPWENT
5374 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5375 if (pwent) pwent = getpwnam(pwent->pw_name);
5378 DIE(aTHX_ PL_no_func, "getpwent");
5384 if (GIMME != G_ARRAY) {
5385 PUSHs(sv = sv_newmortal());
5387 if (which == OP_GPWNAM)
5388 # if Uid_t_sign <= 0
5389 sv_setiv(sv, (IV)pwent->pw_uid);
5391 sv_setuv(sv, (UV)pwent->pw_uid);
5394 sv_setpv(sv, pwent->pw_name);
5400 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5401 sv_setpv(sv, pwent->pw_name);
5403 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5405 /* If we have getspnam(), we try to dig up the shadow
5406 * password. If we are underprivileged, the shadow
5407 * interface will set the errno to EACCES or similar,
5408 * and return a null pointer. If this happens, we will
5409 * use the dummy password (usually "*" or "x") from the
5410 * standard password database.
5412 * In theory we could skip the shadow call completely
5413 * if euid != 0 but in practice we cannot know which
5414 * security measures are guarding the shadow databases
5415 * on a random platform.
5417 * Resist the urge to use additional shadow interfaces.
5418 * Divert the urge to writing an extension instead.
5421 /* Some AIX setups falsely(?) detect some getspnam(), which
5422 * has a different API than the Solaris/IRIX one. */
5423 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5425 struct spwd *spwent;
5426 int saverrno; /* Save and restore errno so that
5427 * underprivileged attempts seem
5428 * to have never made the unsccessful
5429 * attempt to retrieve the shadow password. */
5432 spwent = getspnam(pwent->pw_name);
5434 if (spwent && spwent->sp_pwdp)
5435 sv_setpv(sv, spwent->sp_pwdp);
5439 if (!SvPOK(sv)) /* Use the standard password, then. */
5440 sv_setpv(sv, pwent->pw_passwd);
5443 # ifndef INCOMPLETE_TAINTS
5444 /* passwd is tainted because user himself can diddle with it.
5445 * admittedly not much and in a very limited way, but nevertheless. */
5449 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5450 # if Uid_t_sign <= 0
5451 sv_setiv(sv, (IV)pwent->pw_uid);
5453 sv_setuv(sv, (UV)pwent->pw_uid);
5456 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5457 # if Uid_t_sign <= 0
5458 sv_setiv(sv, (IV)pwent->pw_gid);
5460 sv_setuv(sv, (UV)pwent->pw_gid);
5462 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5463 * because of the poor interface of the Perl getpw*(),
5464 * not because there's some standard/convention saying so.
5465 * A better interface would have been to return a hash,
5466 * but we are accursed by our history, alas. --jhi. */
5467 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5469 sv_setiv(sv, (IV)pwent->pw_change);
5472 sv_setiv(sv, (IV)pwent->pw_quota);
5475 sv_setpv(sv, pwent->pw_age);
5480 /* pw_class and pw_comment are mutually exclusive--.
5481 * see the above note for pw_change, pw_quota, and pw_age. */
5482 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5484 sv_setpv(sv, pwent->pw_class);
5487 sv_setpv(sv, pwent->pw_comment);
5491 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5493 sv_setpv(sv, pwent->pw_gecos);
5495 # ifndef INCOMPLETE_TAINTS
5496 /* pw_gecos is tainted because user himself can diddle with it. */
5500 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5501 sv_setpv(sv, pwent->pw_dir);
5503 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5504 sv_setpv(sv, pwent->pw_shell);
5505 # ifndef INCOMPLETE_TAINTS
5506 /* pw_shell is tainted because user himself can diddle with it. */
5511 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5512 sv_setiv(sv, (IV)pwent->pw_expire);
5517 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5523 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5528 DIE(aTHX_ PL_no_func, "setpwent");
5534 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5539 DIE(aTHX_ PL_no_func, "endpwent");
5557 I32 which = PL_op->op_type;
5558 register char **elem;
5560 struct group *grent;
5562 if (which == OP_GGRNAM) {
5563 char* name = POPpbytex;
5564 grent = (struct group *)getgrnam(name);
5566 else if (which == OP_GGRGID) {
5568 grent = (struct group *)getgrgid(gid);
5572 grent = (struct group *)getgrent();
5574 DIE(aTHX_ PL_no_func, "getgrent");
5578 if (GIMME != G_ARRAY) {
5579 PUSHs(sv = sv_newmortal());
5581 if (which == OP_GGRNAM)
5582 sv_setiv(sv, (IV)grent->gr_gid);
5584 sv_setpv(sv, grent->gr_name);
5590 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5591 sv_setpv(sv, grent->gr_name);
5593 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5595 sv_setpv(sv, grent->gr_passwd);
5598 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5599 sv_setiv(sv, (IV)grent->gr_gid);
5601 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5602 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5603 /* In UNICOS/mk (_CRAYMPP) the multithreading
5604 * versions (getgrnam_r, getgrgid_r)
5605 * seem to return an illegal pointer
5606 * as the group members list, gr_mem.
5607 * getgrent() doesn't even have a _r version
5608 * but the gr_mem is poisonous anyway.
5609 * So yes, you cannot get the list of group
5610 * members if building multithreaded in UNICOS/mk. */
5611 for (elem = grent->gr_mem; elem && *elem; elem++) {
5612 sv_catpv(sv, *elem);
5614 sv_catpvn(sv, " ", 1);
5621 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5627 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5632 DIE(aTHX_ PL_no_func, "setgrent");
5638 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5643 DIE(aTHX_ PL_no_func, "endgrent");
5653 if (!(tmps = PerlProc_getlogin()))
5655 PUSHp(tmps, strlen(tmps));
5658 DIE(aTHX_ PL_no_func, "getlogin");
5662 /* Miscellaneous. */
5667 dSP; dMARK; dORIGMARK; dTARGET;
5668 register I32 items = SP - MARK;
5669 unsigned long a[20];
5674 while (++MARK <= SP) {
5675 if (SvTAINTED(*MARK)) {
5681 TAINT_PROPER("syscall");
5684 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5685 * or where sizeof(long) != sizeof(char*). But such machines will
5686 * not likely have syscall implemented either, so who cares?
5688 while (++MARK <= SP) {
5689 if (SvNIOK(*MARK) || !i)
5690 a[i++] = SvIV(*MARK);
5691 else if (*MARK == &PL_sv_undef)
5694 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
5700 DIE(aTHX_ "Too many args to syscall");
5702 DIE(aTHX_ "Too few args to syscall");
5704 retval = syscall(a[0]);
5707 retval = syscall(a[0],a[1]);
5710 retval = syscall(a[0],a[1],a[2]);
5713 retval = syscall(a[0],a[1],a[2],a[3]);
5716 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5719 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5722 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5725 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5729 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5732 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5735 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5739 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5743 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5747 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5748 a[10],a[11],a[12],a[13]);
5750 #endif /* atarist */
5756 DIE(aTHX_ PL_no_func, "syscall");
5760 #ifdef FCNTL_EMULATE_FLOCK
5762 /* XXX Emulate flock() with fcntl().
5763 What's really needed is a good file locking module.
5767 fcntl_emulate_flock(int fd, int operation)
5771 switch (operation & ~LOCK_NB) {
5773 flock.l_type = F_RDLCK;
5776 flock.l_type = F_WRLCK;
5779 flock.l_type = F_UNLCK;
5785 flock.l_whence = SEEK_SET;
5786 flock.l_start = flock.l_len = (Off_t)0;
5788 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5791 #endif /* FCNTL_EMULATE_FLOCK */
5793 #ifdef LOCKF_EMULATE_FLOCK
5795 /* XXX Emulate flock() with lockf(). This is just to increase
5796 portability of scripts. The calls are not completely
5797 interchangeable. What's really needed is a good file
5801 /* The lockf() constants might have been defined in <unistd.h>.
5802 Unfortunately, <unistd.h> causes troubles on some mixed
5803 (BSD/POSIX) systems, such as SunOS 4.1.3.
5805 Further, the lockf() constants aren't POSIX, so they might not be
5806 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5807 just stick in the SVID values and be done with it. Sigh.
5811 # define F_ULOCK 0 /* Unlock a previously locked region */
5814 # define F_LOCK 1 /* Lock a region for exclusive use */
5817 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5820 # define F_TEST 3 /* Test a region for other processes locks */
5824 lockf_emulate_flock(int fd, int operation)
5830 /* flock locks entire file so for lockf we need to do the same */
5832 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5833 if (pos > 0) /* is seekable and needs to be repositioned */
5834 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5835 pos = -1; /* seek failed, so don't seek back afterwards */
5838 switch (operation) {
5840 /* LOCK_SH - get a shared lock */
5842 /* LOCK_EX - get an exclusive lock */
5844 i = lockf (fd, F_LOCK, 0);
5847 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5848 case LOCK_SH|LOCK_NB:
5849 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5850 case LOCK_EX|LOCK_NB:
5851 i = lockf (fd, F_TLOCK, 0);
5853 if ((errno == EAGAIN) || (errno == EACCES))
5854 errno = EWOULDBLOCK;
5857 /* LOCK_UN - unlock (non-blocking is a no-op) */
5859 case LOCK_UN|LOCK_NB:
5860 i = lockf (fd, F_ULOCK, 0);
5863 /* Default - can't decipher operation */
5870 if (pos > 0) /* need to restore position of the handle */
5871 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5876 #endif /* LOCKF_EMULATE_FLOCK */
5880 * c-indentation-style: bsd
5882 * indent-tabs-mode: t
5885 * ex: set ts=8 sts=4 sw=4 noet: