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");
2631 return pp_ssockopt();
2633 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2641 int optype = PL_op->op_type;
2644 unsigned int optname;
2650 if (optype == OP_GSOCKOPT)
2651 sv = sv_2mortal(NEWSV(22, 257));
2654 optname = (unsigned int) POPi;
2655 lvl = (unsigned int) POPi;
2659 if (!io || !IoIFP(io))
2662 fd = PerlIO_fileno(IoIFP(io));
2666 (void)SvPOK_only(sv);
2670 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2677 #if defined(__SYMBIAN32__)
2678 # define SETSOCKOPT_OPTION_VALUE_T void *
2680 # define SETSOCKOPT_OPTION_VALUE_T const char *
2682 /* XXX TODO: We need to have a proper type (a Configure probe,
2683 * etc.) for what the C headers think of the third argument of
2684 * setsockopt(), the option_value read-only buffer: is it
2685 * a "char *", or a "void *", const or not. Some compilers
2686 * don't take kindly to e.g. assuming that "char *" implicitly
2687 * promotes to a "void *", or to explicitly promoting/demoting
2688 * consts to non/vice versa. The "const void *" is the SUS
2689 * definition, but that does not fly everywhere for the above
2691 SETSOCKOPT_OPTION_VALUE_T buf;
2695 buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
2699 aint = (int)SvIV(sv);
2700 buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
2703 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2712 if (ckWARN(WARN_CLOSED))
2713 report_evil_fh(gv, io, optype);
2714 SETERRNO(EBADF,SS_IVCHAN);
2719 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2726 return pp_getpeername();
2728 DIE(aTHX_ PL_no_sock_func, "getsockname");
2736 int optype = PL_op->op_type;
2740 register IO *io = GvIOn(gv);
2743 if (!io || !IoIFP(io))
2746 sv = sv_2mortal(NEWSV(22, 257));
2747 (void)SvPOK_only(sv);
2751 fd = PerlIO_fileno(IoIFP(io));
2753 case OP_GETSOCKNAME:
2754 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2757 case OP_GETPEERNAME:
2758 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2760 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2762 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";
2763 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2764 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2765 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
2766 sizeof(u_short) + sizeof(struct in_addr))) {
2773 #ifdef BOGUS_GETNAME_RETURN
2774 /* Interactive Unix, getpeername() and getsockname()
2775 does not return valid namelen */
2776 if (len == BOGUS_GETNAME_RETURN)
2777 len = sizeof(struct sockaddr);
2785 if (ckWARN(WARN_CLOSED))
2786 report_evil_fh(gv, io, optype);
2787 SETERRNO(EBADF,SS_IVCHAN);
2792 DIE(aTHX_ PL_no_sock_func, "getpeername");
2810 if (PL_op->op_flags & OPf_REF) {
2812 if (PL_op->op_type == OP_LSTAT) {
2813 if (gv != PL_defgv) {
2814 if (ckWARN(WARN_IO))
2815 Perl_warner(aTHX_ packWARN(WARN_IO),
2816 "lstat() on filehandle %s", GvENAME(gv));
2817 } else if (PL_laststype != OP_LSTAT)
2818 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2822 if (gv != PL_defgv) {
2823 PL_laststype = OP_STAT;
2825 sv_setpvn(PL_statname, "", 0);
2826 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2827 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2829 if (PL_laststatval < 0) {
2830 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2831 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2837 if (SvTYPE(sv) == SVt_PVGV) {
2841 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2843 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2844 Perl_warner(aTHX_ packWARN(WARN_IO),
2845 "lstat() on filehandle %s", GvENAME(gv));
2848 sv_setpv(PL_statname, SvPV_nolen_const(sv));
2850 PL_laststype = PL_op->op_type;
2851 if (PL_op->op_type == OP_LSTAT)
2852 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
2854 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
2855 if (PL_laststatval < 0) {
2856 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
2857 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2863 if (gimme != G_ARRAY) {
2864 if (gimme != G_VOID)
2865 XPUSHs(boolSV(max));
2871 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2872 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2873 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2874 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2875 #if Uid_t_size > IVSIZE
2876 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2878 # if Uid_t_sign <= 0
2879 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2881 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2884 #if Gid_t_size > IVSIZE
2885 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2887 # if Gid_t_sign <= 0
2888 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2890 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2893 #ifdef USE_STAT_RDEV
2894 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2896 PUSHs(sv_2mortal(newSVpvn("", 0)));
2898 #if Off_t_size > IVSIZE
2899 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2901 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2904 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2905 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2906 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2908 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2909 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2910 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2912 #ifdef USE_STAT_BLOCKS
2913 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2914 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2916 PUSHs(sv_2mortal(newSVpvn("", 0)));
2917 PUSHs(sv_2mortal(newSVpvn("", 0)));
2923 /* This macro is used by the stacked filetest operators :
2924 * if the previous filetest failed, short-circuit and pass its value.
2925 * Else, discard it from the stack and continue. --rgs
2927 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2928 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2929 else { (void)POPs; PUTBACK; } \
2936 STACKED_FTEST_CHECK;
2937 #if defined(HAS_ACCESS) && defined(R_OK)
2938 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2939 result = access(POPpx, R_OK);
2954 if (cando(S_IRUSR, 0, &PL_statcache))
2963 STACKED_FTEST_CHECK;
2964 #if defined(HAS_ACCESS) && defined(W_OK)
2965 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2966 result = access(POPpx, W_OK);
2981 if (cando(S_IWUSR, 0, &PL_statcache))
2990 STACKED_FTEST_CHECK;
2991 #if defined(HAS_ACCESS) && defined(X_OK)
2992 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2993 result = access(POPpx, X_OK);
3008 if (cando(S_IXUSR, 0, &PL_statcache))
3017 STACKED_FTEST_CHECK;
3018 #ifdef PERL_EFF_ACCESS_R_OK
3019 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3020 result = PERL_EFF_ACCESS_R_OK(POPpx);
3035 if (cando(S_IRUSR, 1, &PL_statcache))
3044 STACKED_FTEST_CHECK;
3045 #ifdef PERL_EFF_ACCESS_W_OK
3046 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3047 result = PERL_EFF_ACCESS_W_OK(POPpx);
3062 if (cando(S_IWUSR, 1, &PL_statcache))
3071 STACKED_FTEST_CHECK;
3072 #ifdef PERL_EFF_ACCESS_X_OK
3073 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3074 result = PERL_EFF_ACCESS_X_OK(POPpx);
3089 if (cando(S_IXUSR, 1, &PL_statcache))
3098 STACKED_FTEST_CHECK;
3108 return pp_ftrowned();
3115 STACKED_FTEST_CHECK;
3120 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3130 STACKED_FTEST_CHECK;
3135 if (PL_statcache.st_size == 0)
3144 STACKED_FTEST_CHECK;
3149 #if Off_t_size > IVSIZE
3150 PUSHn(PL_statcache.st_size);
3152 PUSHi(PL_statcache.st_size);
3161 STACKED_FTEST_CHECK;
3166 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3174 STACKED_FTEST_CHECK;
3179 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3187 STACKED_FTEST_CHECK;
3192 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3200 STACKED_FTEST_CHECK;
3205 if (S_ISSOCK(PL_statcache.st_mode))
3214 STACKED_FTEST_CHECK;
3219 if (S_ISCHR(PL_statcache.st_mode))
3228 STACKED_FTEST_CHECK;
3233 if (S_ISBLK(PL_statcache.st_mode))
3242 STACKED_FTEST_CHECK;
3247 if (S_ISREG(PL_statcache.st_mode))
3256 STACKED_FTEST_CHECK;
3261 if (S_ISDIR(PL_statcache.st_mode))
3270 STACKED_FTEST_CHECK;
3275 if (S_ISFIFO(PL_statcache.st_mode))
3282 I32 result = my_lstat();
3286 if (S_ISLNK(PL_statcache.st_mode))
3296 STACKED_FTEST_CHECK;
3301 if (PL_statcache.st_mode & S_ISUID)
3312 STACKED_FTEST_CHECK;
3317 if (PL_statcache.st_mode & S_ISGID)
3328 STACKED_FTEST_CHECK;
3333 if (PL_statcache.st_mode & S_ISVTX)
3346 STACKED_FTEST_CHECK;
3348 if (PL_op->op_flags & OPf_REF)
3350 else if (isGV(TOPs))
3352 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3353 gv = (GV*)SvRV(POPs);
3355 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
3357 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3358 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3359 else if (tmpsv && SvOK(tmpsv)) {
3360 const char *tmps = SvPV_nolen_const(tmpsv);
3368 if (PerlLIO_isatty(fd))
3373 #if defined(atarist) /* this will work with atariST. Configure will
3374 make guesses for other systems. */
3375 # define FILE_base(f) ((f)->_base)
3376 # define FILE_ptr(f) ((f)->_ptr)
3377 # define FILE_cnt(f) ((f)->_cnt)
3378 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3388 register STDCHAR *s;
3394 STACKED_FTEST_CHECK;
3396 if (PL_op->op_flags & OPf_REF)
3398 else if (isGV(TOPs))
3400 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3401 gv = (GV*)SvRV(POPs);
3407 if (gv == PL_defgv) {
3409 io = GvIO(PL_statgv);
3412 goto really_filename;
3417 PL_laststatval = -1;
3418 sv_setpvn(PL_statname, "", 0);
3419 io = GvIO(PL_statgv);
3421 if (io && IoIFP(io)) {
3422 if (! PerlIO_has_base(IoIFP(io)))
3423 DIE(aTHX_ "-T and -B not implemented on filehandles");
3424 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3425 if (PL_laststatval < 0)
3427 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3428 if (PL_op->op_type == OP_FTTEXT)
3433 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3434 i = PerlIO_getc(IoIFP(io));
3436 (void)PerlIO_ungetc(IoIFP(io),i);
3438 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3440 len = PerlIO_get_bufsiz(IoIFP(io));
3441 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3442 /* sfio can have large buffers - limit to 512 */
3447 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3449 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3451 SETERRNO(EBADF,RMS_IFI);
3459 PL_laststype = OP_STAT;
3460 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3461 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
3462 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3464 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3467 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3468 if (PL_laststatval < 0) {
3469 (void)PerlIO_close(fp);
3472 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3473 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3474 (void)PerlIO_close(fp);
3476 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3477 RETPUSHNO; /* special case NFS directories */
3478 RETPUSHYES; /* null file is anything */
3483 /* now scan s to look for textiness */
3484 /* XXX ASCII dependent code */
3486 #if defined(DOSISH) || defined(USEMYBINMODE)
3487 /* ignore trailing ^Z on short files */
3488 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3492 for (i = 0; i < len; i++, s++) {
3493 if (!*s) { /* null never allowed in text */
3498 else if (!(isPRINT(*s) || isSPACE(*s)))
3501 else if (*s & 128) {
3503 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3506 /* utf8 characters don't count as odd */
3507 if (UTF8_IS_START(*s)) {
3508 int ulen = UTF8SKIP(s);
3509 if (ulen < len - i) {
3511 for (j = 1; j < ulen; j++) {
3512 if (!UTF8_IS_CONTINUATION(s[j]))
3515 --ulen; /* loop does extra increment */
3525 *s != '\n' && *s != '\r' && *s != '\b' &&
3526 *s != '\t' && *s != '\f' && *s != 27)
3531 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3547 const char *tmps = 0;
3551 SV * const sv = POPs;
3552 if (SvTYPE(sv) == SVt_PVGV) {
3555 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
3559 tmps = SvPVx_nolen_const(sv);
3563 if( !gv && (!tmps || !*tmps) ) {
3564 HV * const table = GvHVn(PL_envgv);
3567 if ( (svp = hv_fetch(table, "HOME", 4, FALSE))
3568 || (svp = hv_fetch(table, "LOGDIR", 6, FALSE))
3570 || (svp = hv_fetch(table, "SYS$LOGIN", 9, FALSE))
3575 deprecate("chdir('') or chdir(undef) as chdir()");
3576 tmps = SvPV_nolen_const(*svp);
3580 TAINT_PROPER("chdir");
3585 TAINT_PROPER("chdir");
3588 IO* const io = GvIO(gv);
3591 PUSHi(fchdir(PerlIO_fileno(IoIFP(io))) >= 0);
3593 else if (IoDIRP(io)) {
3595 PUSHi(fchdir(dirfd(IoDIRP(io))) >= 0);
3597 DIE(aTHX_ PL_no_func, "dirfd");
3608 DIE(aTHX_ PL_no_func, "fchdir");
3612 PUSHi( PerlDir_chdir(tmps) >= 0 );
3614 /* Clear the DEFAULT element of ENV so we'll get the new value
3616 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3624 dSP; dMARK; dTARGET;
3625 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3631 DIE(aTHX_ PL_no_func, "chown");
3640 TAINT_PROPER("chroot");
3641 PUSHi( chroot(tmps) >= 0 );
3644 DIE(aTHX_ PL_no_func, "chroot");
3650 dSP; dMARK; dTARGET;
3652 value = (I32)apply(PL_op->op_type, MARK, SP);
3660 dSP; dMARK; dTARGET;
3662 value = (I32)apply(PL_op->op_type, MARK, SP);
3670 dSP; dMARK; dTARGET;
3672 value = (I32)apply(PL_op->op_type, MARK, SP);
3682 const char *tmps2 = POPpconstx;
3683 const char *tmps = SvPV_nolen_const(TOPs);
3684 TAINT_PROPER("rename");
3686 anum = PerlLIO_rename(tmps, tmps2);
3688 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3689 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3692 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3693 (void)UNLINK(tmps2);
3694 if (!(anum = link(tmps, tmps2)))
3695 anum = UNLINK(tmps);
3707 const char *tmps2 = POPpconstx;
3708 const char *tmps = SvPV_nolen_const(TOPs);
3709 TAINT_PROPER("link");
3710 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3713 DIE(aTHX_ PL_no_func, "link");
3721 const char *tmps2 = POPpconstx;
3722 const char *tmps = SvPV_nolen_const(TOPs);
3723 TAINT_PROPER("symlink");
3724 SETi( symlink(tmps, tmps2) >= 0 );
3727 DIE(aTHX_ PL_no_func, "symlink");
3737 char buf[MAXPATHLEN];
3740 #ifndef INCOMPLETE_TAINTS
3744 len = readlink(tmps, buf, sizeof(buf) - 1);
3752 RETSETUNDEF; /* just pretend it's a normal file */
3756 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3758 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3760 char * const save_filename = filename;
3766 Newx(cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3767 strcpy(cmdline, cmd);
3768 strcat(cmdline, " ");
3769 for (s = cmdline + strlen(cmdline); *filename; ) {
3774 myfp = PerlProc_popen(cmdline, "r");
3778 SV *tmpsv = sv_newmortal();
3779 /* Need to save/restore 'PL_rs' ?? */
3780 s = sv_gets(tmpsv, myfp, 0);
3781 (void)PerlProc_pclose(myfp);
3785 #ifdef HAS_SYS_ERRLIST
3790 /* you don't see this */
3792 #ifdef HAS_SYS_ERRLIST
3800 if (instr(s, errmsg)) {
3807 #define EACCES EPERM
3809 if (instr(s, "cannot make"))
3810 SETERRNO(EEXIST,RMS_FEX);
3811 else if (instr(s, "existing file"))
3812 SETERRNO(EEXIST,RMS_FEX);
3813 else if (instr(s, "ile exists"))
3814 SETERRNO(EEXIST,RMS_FEX);
3815 else if (instr(s, "non-exist"))
3816 SETERRNO(ENOENT,RMS_FNF);
3817 else if (instr(s, "does not exist"))
3818 SETERRNO(ENOENT,RMS_FNF);
3819 else if (instr(s, "not empty"))
3820 SETERRNO(EBUSY,SS_DEVOFFLINE);
3821 else if (instr(s, "cannot access"))
3822 SETERRNO(EACCES,RMS_PRV);
3824 SETERRNO(EPERM,RMS_PRV);
3827 else { /* some mkdirs return no failure indication */
3828 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3829 if (PL_op->op_type == OP_RMDIR)
3834 SETERRNO(EACCES,RMS_PRV); /* a guess */
3843 /* This macro removes trailing slashes from a directory name.
3844 * Different operating and file systems take differently to
3845 * trailing slashes. According to POSIX 1003.1 1996 Edition
3846 * any number of trailing slashes should be allowed.
3847 * Thusly we snip them away so that even non-conforming
3848 * systems are happy.
3849 * We should probably do this "filtering" for all
3850 * the functions that expect (potentially) directory names:
3851 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3852 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3854 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3855 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3858 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3859 (tmps) = savepvn((tmps), (len)); \
3879 TRIMSLASHES(tmps,len,copy);
3881 TAINT_PROPER("mkdir");
3883 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3885 SETi( dooneliner("mkdir", tmps) );
3886 oldumask = PerlLIO_umask(0);
3887 PerlLIO_umask(oldumask);
3888 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3902 TRIMSLASHES(tmps,len,copy);
3903 TAINT_PROPER("rmdir");
3905 SETi( PerlDir_rmdir(tmps) >= 0 );
3907 SETi( dooneliner("rmdir", tmps) );
3914 /* Directory calls. */
3918 #if defined(Direntry_t) && defined(HAS_READDIR)
3920 const char *dirname = POPpconstx;
3922 register IO *io = GvIOn(gv);
3928 PerlDir_close(IoDIRP(io));
3929 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3935 SETERRNO(EBADF,RMS_DIR);
3938 DIE(aTHX_ PL_no_dir_func, "opendir");
3944 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3945 DIE(aTHX_ PL_no_dir_func, "readdir");
3947 #if !defined(I_DIRENT) && !defined(VMS)
3948 Direntry_t *readdir (DIR *);
3953 const I32 gimme = GIMME;
3954 GV *gv = (GV *)POPs;
3955 register Direntry_t *dp;
3956 register IO *io = GvIOn(gv);
3958 if (!io || !IoDIRP(io))
3962 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3966 sv = newSVpvn(dp->d_name, dp->d_namlen);
3968 sv = newSVpv(dp->d_name, 0);
3970 #ifndef INCOMPLETE_TAINTS
3971 if (!(IoFLAGS(io) & IOf_UNTAINT))
3974 XPUSHs(sv_2mortal(sv));
3976 while (gimme == G_ARRAY);
3978 if (!dp && gimme != G_ARRAY)
3985 SETERRNO(EBADF,RMS_ISI);
3986 if (GIMME == G_ARRAY)
3995 #if defined(HAS_TELLDIR) || defined(telldir)
3997 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3998 /* XXX netbsd still seemed to.
3999 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
4000 --JHI 1999-Feb-02 */
4001 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
4002 long telldir (DIR *);
4005 register IO *io = GvIOn(gv);
4007 if (!io || !IoDIRP(io))
4010 PUSHi( PerlDir_tell(IoDIRP(io)) );
4014 SETERRNO(EBADF,RMS_ISI);
4017 DIE(aTHX_ PL_no_dir_func, "telldir");
4023 #if defined(HAS_SEEKDIR) || defined(seekdir)
4027 register IO *io = GvIOn(gv);
4029 if (!io || !IoDIRP(io))
4032 (void)PerlDir_seek(IoDIRP(io), along);
4037 SETERRNO(EBADF,RMS_ISI);
4040 DIE(aTHX_ PL_no_dir_func, "seekdir");
4046 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4049 register IO *io = GvIOn(gv);
4051 if (!io || !IoDIRP(io))
4054 (void)PerlDir_rewind(IoDIRP(io));
4058 SETERRNO(EBADF,RMS_ISI);
4061 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4067 #if defined(Direntry_t) && defined(HAS_READDIR)
4070 register IO *io = GvIOn(gv);
4072 if (!io || !IoDIRP(io))
4075 #ifdef VOID_CLOSEDIR
4076 PerlDir_close(IoDIRP(io));
4078 if (PerlDir_close(IoDIRP(io)) < 0) {
4079 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4088 SETERRNO(EBADF,RMS_IFI);
4091 DIE(aTHX_ PL_no_dir_func, "closedir");
4095 /* Process control. */
4105 PERL_FLUSHALL_FOR_CHILD;
4106 childpid = PerlProc_fork();
4110 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4111 SvREADONLY_off(GvSV(tmpgv));
4112 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4113 SvREADONLY_on(GvSV(tmpgv));
4115 #ifdef THREADS_HAVE_PIDS
4116 PL_ppid = (IV)getppid();
4118 #ifdef PERL_USES_PL_PIDSTATUS
4119 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4125 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4130 PERL_FLUSHALL_FOR_CHILD;
4131 childpid = PerlProc_fork();
4137 DIE(aTHX_ PL_no_func, "fork");
4144 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4149 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4150 childpid = wait4pid(-1, &argflags, 0);
4152 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4157 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4158 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4159 STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
4161 STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
4166 DIE(aTHX_ PL_no_func, "wait");
4172 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4181 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4182 result = wait4pid(pid, &argflags, optype);
4184 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4189 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4190 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4191 STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
4193 STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
4198 DIE(aTHX_ PL_no_func, "waitpid");
4204 dSP; dMARK; dORIGMARK; dTARGET;
4210 while (++MARK <= SP) {
4211 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4216 TAINT_PROPER("system");
4218 PERL_FLUSHALL_FOR_CHILD;
4219 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4225 if (PerlProc_pipe(pp) >= 0)
4227 while ((childpid = PerlProc_fork()) == -1) {
4228 if (errno != EAGAIN) {
4233 PerlLIO_close(pp[0]);
4234 PerlLIO_close(pp[1]);
4241 Sigsave_t ihand,qhand; /* place to save signals during system() */
4245 PerlLIO_close(pp[1]);
4247 rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
4248 rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
4251 result = wait4pid(childpid, &status, 0);
4252 } while (result == -1 && errno == EINTR);
4254 (void)rsignal_restore(SIGINT, &ihand);
4255 (void)rsignal_restore(SIGQUIT, &qhand);
4257 STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
4258 do_execfree(); /* free any memory child malloced on fork */
4264 while (n < sizeof(int)) {
4265 n1 = PerlLIO_read(pp[0],
4266 (void*)(((char*)&errkid)+n),
4272 PerlLIO_close(pp[0]);
4273 if (n) { /* Error */
4274 if (n != sizeof(int))
4275 DIE(aTHX_ "panic: kid popen errno read");
4276 errno = errkid; /* Propagate errno from kid */
4277 STATUS_NATIVE_CHILD_SET(-1);
4280 PUSHi(STATUS_CURRENT);
4284 PerlLIO_close(pp[0]);
4285 #if defined(HAS_FCNTL) && defined(F_SETFD)
4286 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4289 if (PL_op->op_flags & OPf_STACKED) {
4290 SV *really = *++MARK;
4291 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4293 else if (SP - MARK != 1)
4294 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4296 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
4300 #else /* ! FORK or VMS or OS/2 */
4303 if (PL_op->op_flags & OPf_STACKED) {
4304 SV *really = *++MARK;
4305 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4306 value = (I32)do_aspawn(really, MARK, SP);
4308 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4311 else if (SP - MARK != 1) {
4312 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4313 value = (I32)do_aspawn(Nullsv, MARK, SP);
4315 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4319 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4321 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4323 STATUS_NATIVE_CHILD_SET(value);
4326 PUSHi(result ? value : STATUS_CURRENT);
4327 #endif /* !FORK or VMS */
4333 dSP; dMARK; dORIGMARK; dTARGET;
4338 while (++MARK <= SP) {
4339 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4344 TAINT_PROPER("exec");
4346 PERL_FLUSHALL_FOR_CHILD;
4347 if (PL_op->op_flags & OPf_STACKED) {
4348 SV *really = *++MARK;
4349 value = (I32)do_aexec(really, MARK, SP);
4351 else if (SP - MARK != 1)
4353 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4357 (void ) do_aspawn(Nullsv, MARK, SP);
4361 value = (I32)do_aexec(Nullsv, MARK, SP);
4366 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4369 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4372 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4385 dSP; dMARK; dTARGET;
4387 value = (I32)apply(PL_op->op_type, MARK, SP);
4392 DIE(aTHX_ PL_no_func, "kill");
4400 # ifdef THREADS_HAVE_PIDS
4401 if (PL_ppid != 1 && getppid() == 1)
4402 /* maybe the parent process has died. Refresh ppid cache */
4406 XPUSHi( getppid() );
4410 DIE(aTHX_ PL_no_func, "getppid");
4426 pgrp = (I32)BSD_GETPGRP(pid);
4428 if (pid != 0 && pid != PerlProc_getpid())
4429 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4435 DIE(aTHX_ PL_no_func, "getpgrp()");
4454 TAINT_PROPER("setpgrp");
4456 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4458 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4459 || (pid != 0 && pid != PerlProc_getpid()))
4461 DIE(aTHX_ "setpgrp can't take arguments");
4463 SETi( setpgrp() >= 0 );
4464 #endif /* USE_BSDPGRP */
4467 DIE(aTHX_ PL_no_func, "setpgrp()");
4473 #ifdef HAS_GETPRIORITY
4477 SETi( getpriority(which, who) );
4480 DIE(aTHX_ PL_no_func, "getpriority()");
4486 #ifdef HAS_SETPRIORITY
4491 TAINT_PROPER("setpriority");
4492 SETi( setpriority(which, who, niceval) >= 0 );
4495 DIE(aTHX_ PL_no_func, "setpriority()");
4505 XPUSHn( time(Null(Time_t*)) );
4507 XPUSHi( time(Null(Time_t*)) );
4518 (void)PerlProc_times(&PL_timesbuf);
4520 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4521 /* struct tms, though same data */
4525 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4526 if (GIMME == G_ARRAY) {
4527 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4528 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4529 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4535 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4537 if (GIMME == G_ARRAY) {
4538 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4539 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4540 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4544 DIE(aTHX_ "times not implemented");
4546 #endif /* HAS_TIMES */
4554 #ifdef LOCALTIME_EDGECASE_BROKEN
4555 static struct tm *S_my_localtime (pTHX_ Time_t *tp)
4560 /* No workarounds in the valid range */
4561 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4562 return (localtime (tp));
4564 /* This edge case is to workaround the undefined behaviour, where the
4565 * TIMEZONE makes the time go beyond the defined range.
4566 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4567 * If there is a negative offset in TZ, like MET-1METDST, some broken
4568 * implementations of localtime () (like AIX 5.2) barf with bogus
4570 * 0x7fffffff gmtime 2038-01-19 03:14:07
4571 * 0x7fffffff localtime 1901-12-13 21:45:51
4572 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4573 * 0x3c19137f gmtime 2001-12-13 20:45:51
4574 * 0x3c19137f localtime 2001-12-13 21:45:51
4575 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4576 * Given that legal timezones are typically between GMT-12 and GMT+12
4577 * we turn back the clock 23 hours before calling the localtime
4578 * function, and add those to the return value. This will never cause
4579 * day wrapping problems, since the edge case is Tue Jan *19*
4581 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4584 if (P->tm_hour >= 24) {
4586 P->tm_mday++; /* 18 -> 19 */
4587 P->tm_wday++; /* Mon -> Tue */
4588 P->tm_yday++; /* 18 -> 19 */
4591 } /* S_my_localtime */
4598 const struct tm *tmbuf;
4599 static const char * const dayname[] =
4600 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4601 static const char * const monname[] =
4602 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4603 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4609 when = (Time_t)SvNVx(POPs);
4611 when = (Time_t)SvIVx(POPs);
4614 if (PL_op->op_type == OP_LOCALTIME)
4615 #ifdef LOCALTIME_EDGECASE_BROKEN
4616 tmbuf = S_my_localtime(aTHX_ &when);
4618 tmbuf = localtime(&when);
4621 tmbuf = gmtime(&when);
4623 if (GIMME != G_ARRAY) {
4629 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4630 dayname[tmbuf->tm_wday],
4631 monname[tmbuf->tm_mon],
4636 tmbuf->tm_year + 1900);
4637 PUSHs(sv_2mortal(tsv));
4642 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4643 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4644 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4645 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4646 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4647 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4648 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4649 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4650 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4661 anum = alarm((unsigned int)anum);
4668 DIE(aTHX_ PL_no_func, "alarm");
4679 (void)time(&lasttime);
4684 PerlProc_sleep((unsigned int)duration);
4687 XPUSHi(when - lasttime);
4691 /* Shared memory. */
4705 return pp_shmwrite();
4710 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4711 dSP; dMARK; dTARGET;
4712 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4721 /* Message passing. */
4735 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4736 dSP; dMARK; dTARGET;
4737 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4748 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4749 dSP; dMARK; dTARGET;
4750 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4763 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4764 dSP; dMARK; dTARGET;
4765 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4772 DIE(aTHX_ "System V IPC is not implemented on this machine");
4778 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4779 dSP; dMARK; dTARGET;
4780 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4788 PUSHp(zero_but_true, ZBTLEN);
4798 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4799 dSP; dMARK; dTARGET;
4800 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4809 /* Get system info. */
4813 #ifdef HAS_GETHOSTBYNAME
4814 return pp_ghostent();
4816 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4822 #ifdef HAS_GETHOSTBYADDR
4823 return pp_ghostent();
4825 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4831 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4833 I32 which = PL_op->op_type;
4834 register char **elem;
4836 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4837 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4838 struct hostent *gethostbyname(Netdb_name_t);
4839 struct hostent *gethostent(void);
4841 struct hostent *hent;
4845 if (which == OP_GHBYNAME) {
4846 #ifdef HAS_GETHOSTBYNAME
4847 char* name = POPpbytex;
4848 hent = PerlSock_gethostbyname(name);
4850 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4853 else if (which == OP_GHBYADDR) {
4854 #ifdef HAS_GETHOSTBYADDR
4855 int addrtype = POPi;
4858 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4860 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4862 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4866 #ifdef HAS_GETHOSTENT
4867 hent = PerlSock_gethostent();
4869 DIE(aTHX_ PL_no_sock_func, "gethostent");
4872 #ifdef HOST_NOT_FOUND
4874 #ifdef USE_REENTRANT_API
4875 # ifdef USE_GETHOSTENT_ERRNO
4876 h_errno = PL_reentrant_buffer->_gethostent_errno;
4879 STATUS_UNIX_SET(h_errno);
4883 if (GIMME != G_ARRAY) {
4884 PUSHs(sv = sv_newmortal());
4886 if (which == OP_GHBYNAME) {
4888 sv_setpvn(sv, hent->h_addr, hent->h_length);
4891 sv_setpv(sv, (char*)hent->h_name);
4897 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4898 sv_setpv(sv, (char*)hent->h_name);
4899 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4900 for (elem = hent->h_aliases; elem && *elem; elem++) {
4901 sv_catpv(sv, *elem);
4903 sv_catpvn(sv, " ", 1);
4905 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4906 sv_setiv(sv, (IV)hent->h_addrtype);
4907 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4908 len = hent->h_length;
4909 sv_setiv(sv, (IV)len);
4911 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4912 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4913 sv_setpvn(sv, *elem, len);
4916 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4918 sv_setpvn(sv, hent->h_addr, len);
4923 DIE(aTHX_ PL_no_sock_func, "gethostent");
4929 #ifdef HAS_GETNETBYNAME
4930 return pp_gnetent();
4932 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4938 #ifdef HAS_GETNETBYADDR
4939 return pp_gnetent();
4941 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4947 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4949 I32 which = PL_op->op_type;
4950 register char **elem;
4952 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4953 struct netent *getnetbyaddr(Netdb_net_t, int);
4954 struct netent *getnetbyname(Netdb_name_t);
4955 struct netent *getnetent(void);
4957 struct netent *nent;
4959 if (which == OP_GNBYNAME){
4960 #ifdef HAS_GETNETBYNAME
4961 char *name = POPpbytex;
4962 nent = PerlSock_getnetbyname(name);
4964 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4967 else if (which == OP_GNBYADDR) {
4968 #ifdef HAS_GETNETBYADDR
4969 int addrtype = POPi;
4970 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4971 nent = PerlSock_getnetbyaddr(addr, addrtype);
4973 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4977 #ifdef HAS_GETNETENT
4978 nent = PerlSock_getnetent();
4980 DIE(aTHX_ PL_no_sock_func, "getnetent");
4983 #ifdef HOST_NOT_FOUND
4985 #ifdef USE_REENTRANT_API
4986 # ifdef USE_GETNETENT_ERRNO
4987 h_errno = PL_reentrant_buffer->_getnetent_errno;
4990 STATUS_UNIX_SET(h_errno);
4995 if (GIMME != G_ARRAY) {
4996 PUSHs(sv = sv_newmortal());
4998 if (which == OP_GNBYNAME)
4999 sv_setiv(sv, (IV)nent->n_net);
5001 sv_setpv(sv, nent->n_name);
5007 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5008 sv_setpv(sv, nent->n_name);
5009 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5010 for (elem = nent->n_aliases; elem && *elem; elem++) {
5011 sv_catpv(sv, *elem);
5013 sv_catpvn(sv, " ", 1);
5015 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5016 sv_setiv(sv, (IV)nent->n_addrtype);
5017 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5018 sv_setiv(sv, (IV)nent->n_net);
5023 DIE(aTHX_ PL_no_sock_func, "getnetent");
5029 #ifdef HAS_GETPROTOBYNAME
5030 return pp_gprotoent();
5032 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
5038 #ifdef HAS_GETPROTOBYNUMBER
5039 return pp_gprotoent();
5041 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5047 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
5049 I32 which = PL_op->op_type;
5050 register char **elem;
5052 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
5053 struct protoent *getprotobyname(Netdb_name_t);
5054 struct protoent *getprotobynumber(int);
5055 struct protoent *getprotoent(void);
5057 struct protoent *pent;
5059 if (which == OP_GPBYNAME) {
5060 #ifdef HAS_GETPROTOBYNAME
5061 char* name = POPpbytex;
5062 pent = PerlSock_getprotobyname(name);
5064 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
5067 else if (which == OP_GPBYNUMBER) {
5068 #ifdef HAS_GETPROTOBYNUMBER
5070 pent = PerlSock_getprotobynumber(number);
5072 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5076 #ifdef HAS_GETPROTOENT
5077 pent = PerlSock_getprotoent();
5079 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5083 if (GIMME != G_ARRAY) {
5084 PUSHs(sv = sv_newmortal());
5086 if (which == OP_GPBYNAME)
5087 sv_setiv(sv, (IV)pent->p_proto);
5089 sv_setpv(sv, pent->p_name);
5095 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5096 sv_setpv(sv, pent->p_name);
5097 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5098 for (elem = pent->p_aliases; elem && *elem; elem++) {
5099 sv_catpv(sv, *elem);
5101 sv_catpvn(sv, " ", 1);
5103 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5104 sv_setiv(sv, (IV)pent->p_proto);
5109 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5115 #ifdef HAS_GETSERVBYNAME
5116 return pp_gservent();
5118 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5124 #ifdef HAS_GETSERVBYPORT
5125 return pp_gservent();
5127 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5133 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5135 I32 which = PL_op->op_type;
5136 register char **elem;
5138 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5139 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5140 struct servent *getservbyport(int, Netdb_name_t);
5141 struct servent *getservent(void);
5143 struct servent *sent;
5145 if (which == OP_GSBYNAME) {
5146 #ifdef HAS_GETSERVBYNAME
5147 char *proto = POPpbytex;
5148 char *name = POPpbytex;
5150 if (proto && !*proto)
5153 sent = PerlSock_getservbyname(name, proto);
5155 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5158 else if (which == OP_GSBYPORT) {
5159 #ifdef HAS_GETSERVBYPORT
5160 char *proto = POPpbytex;
5161 unsigned short port = (unsigned short)POPu;
5163 if (proto && !*proto)
5167 port = PerlSock_htons(port);
5169 sent = PerlSock_getservbyport(port, proto);
5171 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5175 #ifdef HAS_GETSERVENT
5176 sent = PerlSock_getservent();
5178 DIE(aTHX_ PL_no_sock_func, "getservent");
5182 if (GIMME != G_ARRAY) {
5183 PUSHs(sv = sv_newmortal());
5185 if (which == OP_GSBYNAME) {
5187 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5189 sv_setiv(sv, (IV)(sent->s_port));
5193 sv_setpv(sv, sent->s_name);
5199 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5200 sv_setpv(sv, sent->s_name);
5201 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5202 for (elem = sent->s_aliases; elem && *elem; elem++) {
5203 sv_catpv(sv, *elem);
5205 sv_catpvn(sv, " ", 1);
5207 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5209 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5211 sv_setiv(sv, (IV)(sent->s_port));
5213 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5214 sv_setpv(sv, sent->s_proto);
5219 DIE(aTHX_ PL_no_sock_func, "getservent");
5225 #ifdef HAS_SETHOSTENT
5227 PerlSock_sethostent(TOPi);
5230 DIE(aTHX_ PL_no_sock_func, "sethostent");
5236 #ifdef HAS_SETNETENT
5238 PerlSock_setnetent(TOPi);
5241 DIE(aTHX_ PL_no_sock_func, "setnetent");
5247 #ifdef HAS_SETPROTOENT
5249 PerlSock_setprotoent(TOPi);
5252 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5258 #ifdef HAS_SETSERVENT
5260 PerlSock_setservent(TOPi);
5263 DIE(aTHX_ PL_no_sock_func, "setservent");
5269 #ifdef HAS_ENDHOSTENT
5271 PerlSock_endhostent();
5275 DIE(aTHX_ PL_no_sock_func, "endhostent");
5281 #ifdef HAS_ENDNETENT
5283 PerlSock_endnetent();
5287 DIE(aTHX_ PL_no_sock_func, "endnetent");
5293 #ifdef HAS_ENDPROTOENT
5295 PerlSock_endprotoent();
5299 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5305 #ifdef HAS_ENDSERVENT
5307 PerlSock_endservent();
5311 DIE(aTHX_ PL_no_sock_func, "endservent");
5320 DIE(aTHX_ PL_no_func, "getpwnam");
5329 DIE(aTHX_ PL_no_func, "getpwuid");
5337 I32 which = PL_op->op_type;
5339 struct passwd *pwent = NULL;
5341 * We currently support only the SysV getsp* shadow password interface.
5342 * The interface is declared in <shadow.h> and often one needs to link
5343 * with -lsecurity or some such.
5344 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5347 * AIX getpwnam() is clever enough to return the encrypted password
5348 * only if the caller (euid?) is root.
5350 * There are at least three other shadow password APIs. Many platforms
5351 * seem to contain more than one interface for accessing the shadow
5352 * password databases, possibly for compatibility reasons.
5353 * The getsp*() is by far he simplest one, the other two interfaces
5354 * are much more complicated, but also very similar to each other.
5359 * struct pr_passwd *getprpw*();
5360 * The password is in
5361 * char getprpw*(...).ufld.fd_encrypt[]
5362 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5367 * struct es_passwd *getespw*();
5368 * The password is in
5369 * char *(getespw*(...).ufld.fd_encrypt)
5370 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5373 * struct userpw *getuserpw();
5374 * The password is in
5375 * char *(getuserpw(...)).spw_upw_passwd
5376 * (but the de facto standard getpwnam() should work okay)
5378 * Mention I_PROT here so that Configure probes for it.
5380 * In HP-UX for getprpw*() the manual page claims that one should include
5381 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5382 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5383 * and pp_sys.c already includes <shadow.h> if there is such.
5385 * Note that <sys/security.h> is already probed for, but currently
5386 * it is only included in special cases.
5388 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5389 * be preferred interface, even though also the getprpw*() interface
5390 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5391 * One also needs to call set_auth_parameters() in main() before
5392 * doing anything else, whether one is using getespw*() or getprpw*().
5394 * Note that accessing the shadow databases can be magnitudes
5395 * slower than accessing the standard databases.
5400 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5401 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5402 * the pw_comment is left uninitialized. */
5403 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5409 char* name = POPpbytex;
5410 pwent = getpwnam(name);
5416 pwent = getpwuid(uid);
5420 # ifdef HAS_GETPWENT
5422 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5423 if (pwent) pwent = getpwnam(pwent->pw_name);
5426 DIE(aTHX_ PL_no_func, "getpwent");
5432 if (GIMME != G_ARRAY) {
5433 PUSHs(sv = sv_newmortal());
5435 if (which == OP_GPWNAM)
5436 # if Uid_t_sign <= 0
5437 sv_setiv(sv, (IV)pwent->pw_uid);
5439 sv_setuv(sv, (UV)pwent->pw_uid);
5442 sv_setpv(sv, pwent->pw_name);
5448 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5449 sv_setpv(sv, pwent->pw_name);
5451 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5453 /* If we have getspnam(), we try to dig up the shadow
5454 * password. If we are underprivileged, the shadow
5455 * interface will set the errno to EACCES or similar,
5456 * and return a null pointer. If this happens, we will
5457 * use the dummy password (usually "*" or "x") from the
5458 * standard password database.
5460 * In theory we could skip the shadow call completely
5461 * if euid != 0 but in practice we cannot know which
5462 * security measures are guarding the shadow databases
5463 * on a random platform.
5465 * Resist the urge to use additional shadow interfaces.
5466 * Divert the urge to writing an extension instead.
5469 /* Some AIX setups falsely(?) detect some getspnam(), which
5470 * has a different API than the Solaris/IRIX one. */
5471 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5473 struct spwd *spwent;
5474 int saverrno; /* Save and restore errno so that
5475 * underprivileged attempts seem
5476 * to have never made the unsccessful
5477 * attempt to retrieve the shadow password. */
5480 spwent = getspnam(pwent->pw_name);
5482 if (spwent && spwent->sp_pwdp)
5483 sv_setpv(sv, spwent->sp_pwdp);
5487 if (!SvPOK(sv)) /* Use the standard password, then. */
5488 sv_setpv(sv, pwent->pw_passwd);
5491 # ifndef INCOMPLETE_TAINTS
5492 /* passwd is tainted because user himself can diddle with it.
5493 * admittedly not much and in a very limited way, but nevertheless. */
5497 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5498 # if Uid_t_sign <= 0
5499 sv_setiv(sv, (IV)pwent->pw_uid);
5501 sv_setuv(sv, (UV)pwent->pw_uid);
5504 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5505 # if Uid_t_sign <= 0
5506 sv_setiv(sv, (IV)pwent->pw_gid);
5508 sv_setuv(sv, (UV)pwent->pw_gid);
5510 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5511 * because of the poor interface of the Perl getpw*(),
5512 * not because there's some standard/convention saying so.
5513 * A better interface would have been to return a hash,
5514 * but we are accursed by our history, alas. --jhi. */
5515 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5517 sv_setiv(sv, (IV)pwent->pw_change);
5520 sv_setiv(sv, (IV)pwent->pw_quota);
5523 sv_setpv(sv, pwent->pw_age);
5528 /* pw_class and pw_comment are mutually exclusive--.
5529 * see the above note for pw_change, pw_quota, and pw_age. */
5530 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5532 sv_setpv(sv, pwent->pw_class);
5535 sv_setpv(sv, pwent->pw_comment);
5539 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5541 sv_setpv(sv, pwent->pw_gecos);
5543 # ifndef INCOMPLETE_TAINTS
5544 /* pw_gecos is tainted because user himself can diddle with it. */
5548 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5549 sv_setpv(sv, pwent->pw_dir);
5551 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5552 sv_setpv(sv, pwent->pw_shell);
5553 # ifndef INCOMPLETE_TAINTS
5554 /* pw_shell is tainted because user himself can diddle with it. */
5559 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5560 sv_setiv(sv, (IV)pwent->pw_expire);
5565 DIE(aTHX_ PL_no_func, "getpwent");
5571 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5576 DIE(aTHX_ PL_no_func, "setpwent");
5582 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5587 DIE(aTHX_ PL_no_func, "endpwent");
5596 DIE(aTHX_ PL_no_func, "getgrnam");
5605 DIE(aTHX_ PL_no_func, "getgrgid");
5613 I32 which = PL_op->op_type;
5614 register char **elem;
5616 struct group *grent;
5618 if (which == OP_GGRNAM) {
5619 char* name = POPpbytex;
5620 grent = (struct group *)getgrnam(name);
5622 else if (which == OP_GGRGID) {
5624 grent = (struct group *)getgrgid(gid);
5628 grent = (struct group *)getgrent();
5630 DIE(aTHX_ PL_no_func, "getgrent");
5634 if (GIMME != G_ARRAY) {
5635 PUSHs(sv = sv_newmortal());
5637 if (which == OP_GGRNAM)
5638 sv_setiv(sv, (IV)grent->gr_gid);
5640 sv_setpv(sv, grent->gr_name);
5646 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5647 sv_setpv(sv, grent->gr_name);
5649 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5651 sv_setpv(sv, grent->gr_passwd);
5654 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5655 sv_setiv(sv, (IV)grent->gr_gid);
5657 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5658 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5659 /* In UNICOS/mk (_CRAYMPP) the multithreading
5660 * versions (getgrnam_r, getgrgid_r)
5661 * seem to return an illegal pointer
5662 * as the group members list, gr_mem.
5663 * getgrent() doesn't even have a _r version
5664 * but the gr_mem is poisonous anyway.
5665 * So yes, you cannot get the list of group
5666 * members if building multithreaded in UNICOS/mk. */
5667 for (elem = grent->gr_mem; elem && *elem; elem++) {
5668 sv_catpv(sv, *elem);
5670 sv_catpvn(sv, " ", 1);
5677 DIE(aTHX_ PL_no_func, "getgrent");
5683 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5688 DIE(aTHX_ PL_no_func, "setgrent");
5694 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5699 DIE(aTHX_ PL_no_func, "endgrent");
5709 if (!(tmps = PerlProc_getlogin()))
5711 PUSHp(tmps, strlen(tmps));
5714 DIE(aTHX_ PL_no_func, "getlogin");
5718 /* Miscellaneous. */
5723 dSP; dMARK; dORIGMARK; dTARGET;
5724 register I32 items = SP - MARK;
5725 unsigned long a[20];
5730 while (++MARK <= SP) {
5731 if (SvTAINTED(*MARK)) {
5737 TAINT_PROPER("syscall");
5740 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5741 * or where sizeof(long) != sizeof(char*). But such machines will
5742 * not likely have syscall implemented either, so who cares?
5744 while (++MARK <= SP) {
5745 if (SvNIOK(*MARK) || !i)
5746 a[i++] = SvIV(*MARK);
5747 else if (*MARK == &PL_sv_undef)
5750 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
5756 DIE(aTHX_ "Too many args to syscall");
5758 DIE(aTHX_ "Too few args to syscall");
5760 retval = syscall(a[0]);
5763 retval = syscall(a[0],a[1]);
5766 retval = syscall(a[0],a[1],a[2]);
5769 retval = syscall(a[0],a[1],a[2],a[3]);
5772 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5775 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5778 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5781 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5785 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5788 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5791 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5795 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5799 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5803 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5804 a[10],a[11],a[12],a[13]);
5806 #endif /* atarist */
5812 DIE(aTHX_ PL_no_func, "syscall");
5816 #ifdef FCNTL_EMULATE_FLOCK
5818 /* XXX Emulate flock() with fcntl().
5819 What's really needed is a good file locking module.
5823 fcntl_emulate_flock(int fd, int operation)
5827 switch (operation & ~LOCK_NB) {
5829 flock.l_type = F_RDLCK;
5832 flock.l_type = F_WRLCK;
5835 flock.l_type = F_UNLCK;
5841 flock.l_whence = SEEK_SET;
5842 flock.l_start = flock.l_len = (Off_t)0;
5844 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5847 #endif /* FCNTL_EMULATE_FLOCK */
5849 #ifdef LOCKF_EMULATE_FLOCK
5851 /* XXX Emulate flock() with lockf(). This is just to increase
5852 portability of scripts. The calls are not completely
5853 interchangeable. What's really needed is a good file
5857 /* The lockf() constants might have been defined in <unistd.h>.
5858 Unfortunately, <unistd.h> causes troubles on some mixed
5859 (BSD/POSIX) systems, such as SunOS 4.1.3.
5861 Further, the lockf() constants aren't POSIX, so they might not be
5862 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5863 just stick in the SVID values and be done with it. Sigh.
5867 # define F_ULOCK 0 /* Unlock a previously locked region */
5870 # define F_LOCK 1 /* Lock a region for exclusive use */
5873 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5876 # define F_TEST 3 /* Test a region for other processes locks */
5880 lockf_emulate_flock(int fd, int operation)
5886 /* flock locks entire file so for lockf we need to do the same */
5888 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5889 if (pos > 0) /* is seekable and needs to be repositioned */
5890 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5891 pos = -1; /* seek failed, so don't seek back afterwards */
5894 switch (operation) {
5896 /* LOCK_SH - get a shared lock */
5898 /* LOCK_EX - get an exclusive lock */
5900 i = lockf (fd, F_LOCK, 0);
5903 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5904 case LOCK_SH|LOCK_NB:
5905 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5906 case LOCK_EX|LOCK_NB:
5907 i = lockf (fd, F_TLOCK, 0);
5909 if ((errno == EAGAIN) || (errno == EACCES))
5910 errno = EWOULDBLOCK;
5913 /* LOCK_UN - unlock (non-blocking is a no-op) */
5915 case LOCK_UN|LOCK_NB:
5916 i = lockf (fd, F_ULOCK, 0);
5919 /* Default - can't decipher operation */
5926 if (pos > 0) /* need to restore position of the handle */
5927 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5932 #endif /* LOCKF_EMULATE_FLOCK */
5936 * c-indentation-style: bsd
5938 * indent-tabs-mode: t
5941 * ex: set ts=8 sts=4 sw=4 noet: