3 * Copyright (c) 1991-2002, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * But only a short way ahead its floor and the walls on either side were
12 * cloven by a great fissure, out of which the red glare came, now leaping
13 * up, now dying down into darkness; and all the while far below there was
14 * a rumour and a trouble as of great engines throbbing and labouring.
18 #define PERL_IN_PP_SYS_C
22 /* Shadow password support for solaris - pdo@cs.umd.edu
23 * Not just Solaris: at least HP-UX, IRIX, Linux.
24 * The API is from SysV.
26 * There are at least two more shadow interfaces,
27 * see the comments in pp_gpwent().
31 /* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
32 * and another MAXINT from "perl.h" <- <sys/param.h>. */
40 extern "C" int syscall(unsigned long,...);
45 # include <sys/wait.h>
49 # include <sys/resource.h>
58 # include <sys/select.h>
62 /* XXX Configure test needed.
63 h_errno might not be a simple 'int', especially for multi-threaded
64 applications, see "extern int errno in perl.h". Creating such
65 a test requires taking into account the differences between
66 compiling multithreaded and singlethreaded ($ccflags et al).
67 HOST_NOT_FOUND is typically defined in <netdb.h>.
69 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
78 struct passwd *getpwnam (char *);
79 struct passwd *getpwuid (Uid_t);
84 struct passwd *getpwent (void);
85 #elif defined (VMS) && defined (my_getpwent)
86 struct passwd *Perl_my_getpwent (void);
95 struct group *getgrnam (char *);
96 struct group *getgrgid (Gid_t);
100 struct group *getgrent (void);
106 # if defined(_MSC_VER) || defined(__MINGW32__)
107 # include <sys/utime.h>
114 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
117 # define my_chsize PerlLIO_chsize
122 #else /* no flock() */
124 /* fcntl.h might not have been included, even if it exists, because
125 the current Configure only sets I_FCNTL if it's needed to pick up
126 the *_OK constants. Make sure it has been included before testing
127 the fcntl() locking constants. */
128 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
132 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
133 # define FLOCK fcntl_emulate_flock
134 # define FCNTL_EMULATE_FLOCK
135 # else /* no flock() or fcntl(F_SETLK,...) */
137 # define FLOCK lockf_emulate_flock
138 # define LOCKF_EMULATE_FLOCK
140 # endif /* no flock() or fcntl(F_SETLK,...) */
143 static int FLOCK (int, int);
146 * These are the flock() constants. Since this sytems doesn't have
147 * flock(), the values of the constants are probably not available.
161 # endif /* emulating flock() */
163 #endif /* no flock() */
166 static char zero_but_true[ZBTLEN + 1] = "0 but true";
168 #if defined(I_SYS_ACCESS) && !defined(R_OK)
169 # include <sys/access.h>
172 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
173 # define FD_CLOEXEC 1 /* NeXT needs this */
176 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
177 #undef PERL_EFF_ACCESS_W_OK
178 #undef PERL_EFF_ACCESS_X_OK
180 /* F_OK unused: if stat() cannot find it... */
182 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
183 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
184 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
185 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
186 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
189 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
190 # ifdef I_SYS_SECURITY
191 # include <sys/security.h>
195 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
196 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
197 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
200 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
201 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
202 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
206 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
208 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
209 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
210 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
213 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
214 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
215 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
218 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
220 Uid_t ruid = getuid();
221 Uid_t euid = geteuid();
222 Gid_t rgid = getgid();
223 Gid_t egid = getegid();
227 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
228 Perl_croak(aTHX_ "switching effective uid is not implemented");
231 if (setreuid(euid, ruid))
234 if (setresuid(euid, ruid, (Uid_t)-1))
237 Perl_croak(aTHX_ "entering effective uid failed");
240 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
241 Perl_croak(aTHX_ "switching effective gid is not implemented");
244 if (setregid(egid, rgid))
247 if (setresgid(egid, rgid, (Gid_t)-1))
250 Perl_croak(aTHX_ "entering effective gid failed");
253 res = access(path, mode);
256 if (setreuid(ruid, euid))
259 if (setresuid(ruid, euid, (Uid_t)-1))
262 Perl_croak(aTHX_ "leaving effective uid failed");
265 if (setregid(rgid, egid))
268 if (setresgid(rgid, egid, (Gid_t)-1))
271 Perl_croak(aTHX_ "leaving effective gid failed");
276 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
277 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
278 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
281 #if !defined(PERL_EFF_ACCESS_R_OK)
282 /* With it or without it: anyway you get a warning: either that
283 it is unused, or it is declared static and never defined.
286 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
288 Perl_croak(aTHX_ "switching effective uid is not implemented");
304 if (PL_op->op_private & OPpOPEN_IN_RAW)
306 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
308 fp = PerlProc_popen(tmps, mode);
311 if (PL_curcop->cop_io) {
312 type = SvPV_nolen(PL_curcop->cop_io);
315 PerlIO_apply_layers(aTHX_ fp,mode,type);
317 if (gimme == G_VOID) {
319 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
323 else if (gimme == G_SCALAR) {
325 PL_rs = &PL_sv_undef;
326 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
327 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
339 if (sv_gets(sv, fp, 0) == Nullch) {
343 XPUSHs(sv_2mortal(sv));
344 if (SvLEN(sv) - SvCUR(sv) > 20) {
345 SvLEN_set(sv, SvCUR(sv)+1);
346 Renew(SvPVX(sv), SvLEN(sv), char);
351 STATUS_NATIVE_SET(PerlProc_pclose(fp));
352 TAINT; /* "I believe that this is not gratuitous!" */
355 STATUS_NATIVE_SET(-1);
356 if (gimme == G_SCALAR)
366 tryAMAGICunTARGET(iter, -1);
368 /* Note that we only ever get here if File::Glob fails to load
369 * without at the same time croaking, for some reason, or if
370 * perl was built with PERL_EXTERNAL_GLOB */
377 * The external globbing program may use things we can't control,
378 * so for security reasons we must assume the worst.
381 taint_proper(PL_no_security, "glob");
385 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
386 PL_last_in_gv = (GV*)*PL_stack_sp--;
388 SAVESPTR(PL_rs); /* This is not permanent, either. */
389 PL_rs = sv_2mortal(newSVpvn("\000", 1));
392 *SvPVX(PL_rs) = '\n';
396 result = do_readline();
403 PL_last_in_gv = cGVOP_gv;
404 return do_readline();
413 if (SP - MARK != 1) {
415 do_join(TARG, &PL_sv_no, MARK, SP);
422 tmps = SvPV(tmpsv, len);
425 (void)SvUPGRADE(error, SVt_PV);
426 if (SvPOK(error) && SvCUR(error))
427 sv_catpv(error, "\t...caught");
429 tmps = SvPV(tmpsv, len);
432 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
434 Perl_warn(aTHX_ "%"SVf, tmpsv);
446 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
448 if (SP - MARK != 1) {
450 do_join(TARG, &PL_sv_no, MARK, SP);
452 tmps = SvPV(tmpsv, len);
458 tmps = (SvROK(tmpsv) && PL_in_eval) ? Nullch : SvPV(tmpsv, len);
462 (void)SvUPGRADE(error, SVt_PV);
463 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
465 SvSetSV(error,tmpsv);
466 else if (sv_isobject(error)) {
467 HV *stash = SvSTASH(SvRV(error));
468 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
470 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
471 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
478 call_sv((SV*)GvCV(gv),
479 G_SCALAR|G_EVAL|G_KEEPERR);
480 sv_setsv(error,*PL_stack_sp--);
483 DIE(aTHX_ Nullformat);
486 if (SvPOK(error) && SvCUR(error))
487 sv_catpv(error, "\t...propagated");
489 tmps = SvPV(tmpsv, len);
493 tmpsv = sv_2mortal(newSVpvn("Died", 4));
495 DIE(aTHX_ "%"SVf, tmpsv);
515 DIE(aTHX_ PL_no_usym, "filehandle");
516 if ((io = GvIOp(gv)))
517 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
519 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
520 /* Method's args are same as ours ... */
521 /* ... except handle is replaced by the object */
522 *MARK-- = SvTIED_obj((SV*)io, mg);
526 call_method("OPEN", G_SCALAR);
539 tmps = SvPV(sv, len);
540 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
543 PUSHi( (I32)PL_forkprocess );
544 else if (PL_forkprocess == 0) /* we are a new child */
563 if (gv && (io = GvIO(gv))
564 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
567 XPUSHs(SvTIED_obj((SV*)io, mg));
570 call_method("CLOSE", G_SCALAR);
576 PUSHs(boolSV(do_close(gv, TRUE)));
596 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
597 DIE(aTHX_ PL_no_usym, "filehandle");
602 do_close(rgv, FALSE);
604 do_close(wgv, FALSE);
606 if (PerlProc_pipe(fd) < 0)
609 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
610 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
611 IoIFP(wstio) = IoOFP(wstio);
612 IoTYPE(rstio) = IoTYPE_RDONLY;
613 IoTYPE(wstio) = IoTYPE_WRONLY;
615 if (!IoIFP(rstio) || !IoOFP(wstio)) {
616 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
617 else PerlLIO_close(fd[0]);
618 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
619 else PerlLIO_close(fd[1]);
622 #if defined(HAS_FCNTL) && defined(F_SETFD)
623 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
624 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
631 DIE(aTHX_ PL_no_func, "pipe");
647 if (gv && (io = GvIO(gv))
648 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
651 XPUSHs(SvTIED_obj((SV*)io, mg));
654 call_method("FILENO", G_SCALAR);
660 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
661 /* Can't do this because people seem to do things like
662 defined(fileno($foo)) to check whether $foo is a valid fh.
663 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
664 report_evil_fh(gv, io, PL_op->op_type);
669 PUSHi(PerlIO_fileno(fp));
680 anum = PerlLIO_umask(0);
681 (void)PerlLIO_umask(anum);
684 anum = PerlLIO_umask(POPi);
685 TAINT_PROPER("umask");
688 /* Only DIE if trying to restrict permissions on `user' (self).
689 * Otherwise it's harmless and more useful to just return undef
690 * since 'group' and 'other' concepts probably don't exist here. */
691 if (MAXARG >= 1 && (POPi & 0700))
692 DIE(aTHX_ "umask not implemented");
693 XPUSHs(&PL_sv_undef);
715 if (gv && (io = GvIO(gv))
716 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
719 XPUSHs(SvTIED_obj((SV*)io, mg));
724 call_method("BINMODE", G_SCALAR);
731 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
732 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
733 report_evil_fh(gv, io, PL_op->op_type);
738 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
739 (discp) ? SvPV_nolen(discp) : Nullch)) {
757 I32 markoff = MARK - PL_stack_base;
759 int how = PERL_MAGIC_tied;
764 switch(SvTYPE(varsv)) {
766 methname = "TIEHASH";
767 HvEITER((HV *)varsv) = Null(HE *);
770 methname = "TIEARRAY";
773 #ifdef GV_UNIQUE_CHECK
774 if (GvUNIQUE((GV*)varsv)) {
775 Perl_croak(aTHX_ "Attempt to tie unique GV");
778 methname = "TIEHANDLE";
779 how = PERL_MAGIC_tiedscalar;
780 /* For tied filehandles, we apply tiedscalar magic to the IO
781 slot of the GP rather than the GV itself. AMS 20010812 */
783 GvIOp(varsv) = newIO();
784 varsv = (SV *)GvIOp(varsv);
787 methname = "TIESCALAR";
788 how = PERL_MAGIC_tiedscalar;
792 if (sv_isobject(*MARK)) {
794 PUSHSTACKi(PERLSI_MAGIC);
796 EXTEND(SP,(I32)items);
800 call_method(methname, G_SCALAR);
803 /* Not clear why we don't call call_method here too.
804 * perhaps to get different error message ?
806 stash = gv_stashsv(*MARK, FALSE);
807 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
808 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
809 methname, SvPV(*MARK,n_a));
812 PUSHSTACKi(PERLSI_MAGIC);
814 EXTEND(SP,(I32)items);
818 call_sv((SV*)GvCV(gv), G_SCALAR);
824 if (sv_isobject(sv)) {
825 sv_unmagic(varsv, how);
826 /* Croak if a self-tie on an aggregate is attempted. */
827 if (varsv == SvRV(sv) &&
828 (SvTYPE(sv) == SVt_PVAV ||
829 SvTYPE(sv) == SVt_PVHV))
831 "Self-ties of arrays and hashes are not supported");
832 sv_magic(varsv, sv, how, Nullch, 0);
835 SP = PL_stack_base + markoff;
845 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
846 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
848 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
851 if ((mg = SvTIED_mg(sv, how))) {
852 SV *obj = SvRV(mg->mg_obj);
856 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
857 isGV(gv) && (cv = GvCV(gv))) {
859 XPUSHs(SvTIED_obj((SV*)gv, mg));
860 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
863 call_sv((SV *)cv, G_VOID);
867 else if (ckWARN(WARN_UNTIE)) {
868 if (mg && SvREFCNT(obj) > 1)
869 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
870 "untie attempted while %"UVuf" inner references still exist",
871 (UV)SvREFCNT(obj) - 1 ) ;
874 sv_unmagic(sv, how) ;
884 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
885 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
887 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
890 if ((mg = SvTIED_mg(sv, how))) {
891 SV *osv = SvTIED_obj(sv, mg);
892 if (osv == mg->mg_obj)
893 osv = sv_mortalcopy(osv);
911 sv = sv_mortalcopy(&PL_sv_no);
912 sv_setpv(sv, "AnyDBM_File");
913 stash = gv_stashsv(sv, FALSE);
914 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
916 require_pv("AnyDBM_File.pm");
918 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
919 DIE(aTHX_ "No dbm on this machine");
929 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
931 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
934 call_sv((SV*)GvCV(gv), G_SCALAR);
937 if (!sv_isobject(TOPs)) {
942 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
945 call_sv((SV*)GvCV(gv), G_SCALAR);
949 if (sv_isobject(TOPs)) {
950 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
951 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
973 struct timeval timebuf;
974 struct timeval *tbuf = &timebuf;
978 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
983 # if BYTEORDER & 0xf0000
984 # define ORDERBYTE (0x88888888 - BYTEORDER)
986 # define ORDERBYTE (0x4444 - BYTEORDER)
992 for (i = 1; i <= 3; i++) {
1000 /* little endians can use vecs directly */
1001 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1008 masksize = NFDBITS / NBBY;
1010 masksize = sizeof(long); /* documented int, everyone seems to use long */
1012 Zero(&fd_sets[0], 4, char*);
1015 # if SELECT_MIN_BITS > 1
1016 /* If SELECT_MIN_BITS is greater than one we most probably will want
1017 * to align the sizes with SELECT_MIN_BITS/8 because for example
1018 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1019 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1020 * on (sets/tests/clears bits) is 32 bits. */
1021 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1023 growsize = sizeof(fd_set);
1031 timebuf.tv_sec = (long)value;
1032 value -= (NV)timebuf.tv_sec;
1033 timebuf.tv_usec = (long)(value * 1000000.0);
1036 tbuf = Null(struct timeval*);
1038 for (i = 1; i <= 3; i++) {
1044 else if (!SvPOK(sv))
1045 SvPV_force(sv,n_a); /* force string conversion */
1048 Sv_Grow(sv, growsize);
1052 while (++j <= growsize) {
1056 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1058 New(403, fd_sets[i], growsize, char);
1059 for (offset = 0; offset < growsize; offset += masksize) {
1060 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1061 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1064 fd_sets[i] = SvPVX(sv);
1068 nfound = PerlSock_select(
1070 (Select_fd_set_t) fd_sets[1],
1071 (Select_fd_set_t) fd_sets[2],
1072 (Select_fd_set_t) fd_sets[3],
1074 for (i = 1; i <= 3; i++) {
1077 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1079 for (offset = 0; offset < growsize; offset += masksize) {
1080 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1081 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1083 Safefree(fd_sets[i]);
1090 if (GIMME == G_ARRAY && tbuf) {
1091 value = (NV)(timebuf.tv_sec) +
1092 (NV)(timebuf.tv_usec) / 1000000.0;
1093 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1094 sv_setnv(sv, value);
1098 DIE(aTHX_ "select not implemented");
1103 Perl_setdefout(pTHX_ GV *gv)
1106 (void)SvREFCNT_inc(gv);
1108 SvREFCNT_dec(PL_defoutgv);
1115 GV *newdefout, *egv;
1118 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1120 egv = GvEGV(PL_defoutgv);
1125 XPUSHs(&PL_sv_undef);
1127 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1128 if (gvp && *gvp == egv) {
1129 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1133 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1138 if (!GvIO(newdefout))
1139 gv_IOadd(newdefout);
1140 setdefout(newdefout);
1158 if (gv && (io = GvIO(gv))
1159 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1161 I32 gimme = GIMME_V;
1163 XPUSHs(SvTIED_obj((SV*)io, mg));
1166 call_method("GETC", gimme);
1169 if (gimme == G_SCALAR)
1170 SvSetMagicSV_nosteal(TARG, TOPs);
1173 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1174 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1175 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1176 report_evil_fh(gv, io, PL_op->op_type);
1180 sv_setpv(TARG, " ");
1181 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1182 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1183 /* Find out how many bytes the char needs */
1184 Size_t len = UTF8SKIP(SvPVX(TARG));
1187 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1188 SvCUR_set(TARG,1+len);
1198 return pp_sysread();
1202 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1204 register PERL_CONTEXT *cx;
1205 I32 gimme = GIMME_V;
1206 AV* padlist = CvPADLIST(cv);
1207 SV** svp = AvARRAY(padlist);
1213 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1215 SAVEVPTR(PL_curpad);
1216 PL_curpad = AvARRAY((AV*)svp[1]);
1218 setdefout(gv); /* locally select filehandle so $% et al work */
1251 SV *tmpsv = sv_newmortal();
1252 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1253 name = SvPV_nolen(tmpsv);
1256 DIE(aTHX_ "Undefined format \"%s\" called", name);
1257 DIE(aTHX_ "Not a format reference");
1260 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1262 IoFLAGS(io) &= ~IOf_DIDTOP;
1263 return doform(cv,gv,PL_op->op_next);
1269 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1270 register IO *io = GvIOp(gv);
1271 PerlIO *ofp = IoOFP(io);
1275 register PERL_CONTEXT *cx;
1277 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1278 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1281 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1282 PL_formtarget != PL_toptarget)
1286 if (!IoTOP_GV(io)) {
1290 if (!IoTOP_NAME(io)) {
1291 if (!IoFMT_NAME(io))
1292 IoFMT_NAME(io) = savepv(GvNAME(gv));
1293 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1294 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1295 if ((topgv && GvFORM(topgv)) ||
1296 !gv_fetchpv("top",FALSE,SVt_PVFM))
1297 IoTOP_NAME(io) = savepv(SvPVX(topname));
1299 IoTOP_NAME(io) = savepv("top");
1301 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1302 if (!topgv || !GvFORM(topgv)) {
1303 IoLINES_LEFT(io) = 100000000;
1306 IoTOP_GV(io) = topgv;
1308 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1309 I32 lines = IoLINES_LEFT(io);
1310 char *s = SvPVX(PL_formtarget);
1311 if (lines <= 0) /* Yow, header didn't even fit!!! */
1313 while (lines-- > 0) {
1314 s = strchr(s, '\n');
1320 STRLEN save = SvCUR(PL_formtarget);
1321 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1322 do_print(PL_formtarget, ofp);
1323 SvCUR_set(PL_formtarget, save);
1324 sv_chop(PL_formtarget, s);
1325 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1328 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1329 do_print(PL_formfeed, ofp);
1330 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1332 PL_formtarget = PL_toptarget;
1333 IoFLAGS(io) |= IOf_DIDTOP;
1336 DIE(aTHX_ "bad top format reference");
1341 SV *sv = sv_newmortal();
1342 gv_efullname4(sv, fgv, Nullch, FALSE);
1343 name = SvPV_nolen(sv);
1346 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1349 DIE(aTHX_ "Undefined top format called");
1353 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1354 return doform(cv,gv,PL_op);
1358 POPBLOCK(cx,PL_curpm);
1364 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1366 /* integrate with report_evil_fh()? */
1369 SV* sv = sv_newmortal();
1370 gv_efullname4(sv, gv, Nullch, FALSE);
1371 name = SvPV_nolen(sv);
1374 Perl_warner(aTHX_ packWARN(WARN_IO),
1375 "Filehandle %s opened only for input", name);
1377 Perl_warner(aTHX_ packWARN(WARN_IO),
1378 "Filehandle opened only for input");
1380 else if (ckWARN(WARN_CLOSED))
1381 report_evil_fh(gv, io, PL_op->op_type);
1386 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1387 if (ckWARN(WARN_IO))
1388 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1390 if (!do_print(PL_formtarget, fp))
1393 FmLINES(PL_formtarget) = 0;
1394 SvCUR_set(PL_formtarget, 0);
1395 *SvEND(PL_formtarget) = '\0';
1396 if (IoFLAGS(io) & IOf_FLUSH)
1397 (void)PerlIO_flush(fp);
1402 PL_formtarget = PL_bodytarget;
1404 return pop_return();
1409 dSP; dMARK; dORIGMARK;
1416 if (PL_op->op_flags & OPf_STACKED)
1421 if (gv && (io = GvIO(gv))
1422 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1424 if (MARK == ORIGMARK) {
1427 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1431 *MARK = SvTIED_obj((SV*)io, mg);
1434 call_method("PRINTF", G_SCALAR);
1437 MARK = ORIGMARK + 1;
1444 if (!(io = GvIO(gv))) {
1445 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1446 report_evil_fh(gv, io, PL_op->op_type);
1447 SETERRNO(EBADF,RMS$_IFI);
1450 else if (!(fp = IoOFP(io))) {
1451 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1452 /* integrate with report_evil_fh()? */
1456 gv_efullname4(sv, gv, Nullch, FALSE);
1457 name = SvPV_nolen(sv);
1460 Perl_warner(aTHX_ packWARN(WARN_IO),
1461 "Filehandle %s opened only for input", name);
1463 Perl_warner(aTHX_ packWARN(WARN_IO),
1464 "Filehandle opened only for input");
1466 else if (ckWARN(WARN_CLOSED))
1467 report_evil_fh(gv, io, PL_op->op_type);
1469 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1473 do_sprintf(sv, SP - MARK, MARK + 1);
1474 if (!do_print(sv, fp))
1477 if (IoFLAGS(io) & IOf_FLUSH)
1478 if (PerlIO_flush(fp) == EOF)
1489 PUSHs(&PL_sv_undef);
1510 /* Need TIEHANDLE method ? */
1512 tmps = SvPV(sv, len);
1513 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1514 IoLINES(GvIOp(gv)) = 0;
1518 PUSHs(&PL_sv_undef);
1525 dSP; dMARK; dORIGMARK; dTARGET;
1532 Sock_size_t bufsize;
1539 bool charstart = FALSE;
1540 STRLEN charskip = 0;
1544 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1545 && gv && (io = GvIO(gv))
1546 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1551 *MARK = SvTIED_obj((SV*)io, mg);
1553 call_method("READ", G_SCALAR);
1566 sv_setpvn(bufsv, "", 0);
1567 length = SvIVx(*++MARK);
1570 offset = SvIVx(*++MARK);
1574 if (!io || !IoIFP(io))
1576 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1577 buffer = SvPVutf8_force(bufsv, blen);
1578 /* UTF8 may not have been set if they are all low bytes */
1582 buffer = SvPV_force(bufsv, blen);
1585 DIE(aTHX_ "Negative length");
1593 if (PL_op->op_type == OP_RECV) {
1594 char namebuf[MAXPATHLEN];
1595 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1596 bufsize = sizeof (struct sockaddr_in);
1598 bufsize = sizeof namebuf;
1600 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1604 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1605 /* 'offset' means 'flags' here */
1606 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1607 (struct sockaddr *)namebuf, &bufsize);
1611 /* Bogus return without padding */
1612 bufsize = sizeof (struct sockaddr_in);
1614 SvCUR_set(bufsv, count);
1615 *SvEND(bufsv) = '\0';
1616 (void)SvPOK_only(bufsv);
1620 /* This should not be marked tainted if the fp is marked clean */
1621 if (!(IoFLAGS(io) & IOf_UNTAINT))
1622 SvTAINTED_on(bufsv);
1624 sv_setpvn(TARG, namebuf, bufsize);
1629 if (PL_op->op_type == OP_RECV)
1630 DIE(aTHX_ PL_no_sock_func, "recv");
1632 if (DO_UTF8(bufsv)) {
1633 /* offset adjust in characters not bytes */
1634 blen = sv_len_utf8(bufsv);
1637 if (-offset > (int)blen)
1638 DIE(aTHX_ "Offset outside string");
1641 if (DO_UTF8(bufsv)) {
1642 /* convert offset-as-chars to offset-as-bytes */
1643 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1646 bufsize = SvCUR(bufsv);
1647 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1648 if (offset > bufsize) { /* Zero any newly allocated space */
1649 Zero(buffer+bufsize, offset-bufsize, char);
1651 buffer = buffer + offset;
1653 if (PL_op->op_type == OP_SYSREAD) {
1654 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1655 if (IoTYPE(io) == IoTYPE_SOCKET) {
1656 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1662 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1667 #ifdef HAS_SOCKET__bad_code_maybe
1668 if (IoTYPE(io) == IoTYPE_SOCKET) {
1669 char namebuf[MAXPATHLEN];
1670 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1671 bufsize = sizeof (struct sockaddr_in);
1673 bufsize = sizeof namebuf;
1675 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1676 (struct sockaddr *)namebuf, &bufsize);
1681 count = PerlIO_read(IoIFP(io), buffer, length);
1682 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1683 if (count == 0 && PerlIO_error(IoIFP(io)))
1687 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1689 /* integrate with report_evil_fh()? */
1692 SV* sv = sv_newmortal();
1693 gv_efullname4(sv, gv, Nullch, FALSE);
1694 name = SvPV_nolen(sv);
1697 Perl_warner(aTHX_ packWARN(WARN_IO),
1698 "Filehandle %s opened only for output", name);
1700 Perl_warner(aTHX_ packWARN(WARN_IO),
1701 "Filehandle opened only for output");
1705 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1706 *SvEND(bufsv) = '\0';
1707 (void)SvPOK_only(bufsv);
1708 if (fp_utf8 && !IN_BYTES) {
1709 /* Look at utf8 we got back and count the characters */
1710 char *bend = buffer + count;
1711 while (buffer < bend) {
1713 skip = UTF8SKIP(buffer);
1716 if (buffer - charskip + skip > bend) {
1717 /* partial character - try for rest of it */
1718 length = skip - (bend-buffer);
1719 offset = bend - SvPVX(bufsv);
1731 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1732 provided amount read (count) was what was requested (length)
1734 if (got < wanted && count == length) {
1735 length = wanted - got;
1736 offset = bend - SvPVX(bufsv);
1739 /* return value is character count */
1744 /* This should not be marked tainted if the fp is marked clean */
1745 if (!(IoFLAGS(io) & IOf_UNTAINT))
1746 SvTAINTED_on(bufsv);
1759 int items = (SP - PL_stack_base) - TOPMARK;
1763 sv = sv_2mortal(newSViv(sv_len(*SP)));
1772 dSP; dMARK; dORIGMARK; dTARGET;
1783 if (PL_op->op_type == OP_SYSWRITE
1784 && gv && (io = GvIO(gv))
1785 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1790 *MARK = SvTIED_obj((SV*)io, mg);
1792 call_method("WRITE", G_SCALAR);
1803 #if Size_t_size > IVSIZE
1804 length = (Size_t)SvNVx(*++MARK);
1806 length = (Size_t)SvIVx(*++MARK);
1808 if ((SSize_t)length < 0)
1809 DIE(aTHX_ "Negative length");
1812 if (!io || !IoIFP(io)) {
1814 if (ckWARN(WARN_CLOSED))
1815 report_evil_fh(gv, io, PL_op->op_type);
1819 if (PerlIO_isutf8(IoIFP(io))) {
1820 buffer = SvPVutf8(bufsv, blen);
1824 sv_utf8_downgrade(bufsv, FALSE);
1825 buffer = SvPV(bufsv, blen);
1828 if (PL_op->op_type == OP_SYSWRITE) {
1830 if (DO_UTF8(bufsv)) {
1831 /* length and offset are in chars */
1832 blen = sv_len_utf8(bufsv);
1835 offset = SvIVx(*++MARK);
1837 if (-offset > (IV)blen)
1838 DIE(aTHX_ "Offset outside string");
1840 } else if (offset >= (IV)blen && blen > 0)
1841 DIE(aTHX_ "Offset outside string");
1844 if (length > blen - offset)
1845 length = blen - offset;
1846 if (DO_UTF8(bufsv)) {
1847 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1848 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1851 buffer = buffer+offset;
1853 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1854 if (IoTYPE(io) == IoTYPE_SOCKET) {
1855 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1861 /* See the note at doio.c:do_print about filesize limits. --jhi */
1862 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1867 else if (SP > MARK) {
1870 sockbuf = SvPVx(*++MARK, mlen);
1871 /* length is really flags */
1872 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1873 length, (struct sockaddr *)sockbuf, mlen);
1876 /* length is really flags */
1877 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1880 DIE(aTHX_ PL_no_sock_func, "send");
1886 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1887 #if Size_t_size > IVSIZE
1901 return pp_sysread();
1912 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1914 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1916 if (io && !IoIFP(io)) {
1917 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1919 IoFLAGS(io) &= ~IOf_START;
1920 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1921 sv_setpvn(GvSV(gv), "-", 1);
1922 SvSETMAGIC(GvSV(gv));
1924 else if (!nextargv(gv))
1929 gv = PL_last_in_gv; /* eof */
1932 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1934 if (gv && (io = GvIO(gv))
1935 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1938 XPUSHs(SvTIED_obj((SV*)io, mg));
1941 call_method("EOF", G_SCALAR);
1947 PUSHs(boolSV(!gv || do_eof(gv)));
1961 gv = PL_last_in_gv = (GV*)POPs;
1963 if (gv && (io = GvIO(gv))
1964 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1967 XPUSHs(SvTIED_obj((SV*)io, mg));
1970 call_method("TELL", G_SCALAR);
1976 #if LSEEKSIZE > IVSIZE
1977 PUSHn( do_tell(gv) );
1979 PUSHi( do_tell(gv) );
1986 return pp_sysseek();
1995 #if LSEEKSIZE > IVSIZE
1996 Off_t offset = (Off_t)SvNVx(POPs);
1998 Off_t offset = (Off_t)SvIVx(POPs);
2002 gv = PL_last_in_gv = (GV*)POPs;
2004 if (gv && (io = GvIO(gv))
2005 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2008 XPUSHs(SvTIED_obj((SV*)io, mg));
2009 #if LSEEKSIZE > IVSIZE
2010 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2012 XPUSHs(sv_2mortal(newSViv(offset)));
2014 XPUSHs(sv_2mortal(newSViv(whence)));
2017 call_method("SEEK", G_SCALAR);
2023 if (PL_op->op_type == OP_SEEK)
2024 PUSHs(boolSV(do_seek(gv, offset, whence)));
2026 Off_t sought = do_sysseek(gv, offset, whence);
2028 PUSHs(&PL_sv_undef);
2031 #if LSEEKSIZE > IVSIZE
2036 : newSVpvn(zero_but_true, ZBTLEN);
2037 PUSHs(sv_2mortal(sv));
2046 /* There seems to be no consensus on the length type of truncate()
2047 * and ftruncate(), both off_t and size_t have supporters. In
2048 * general one would think that when using large files, off_t is
2049 * at least as wide as size_t, so using an off_t should be okay. */
2050 /* XXX Configure probe for the length type of *truncate() needed XXX */
2053 #if Size_t_size > IVSIZE
2058 /* Checking for length < 0 is problematic as the type might or
2059 * might not be signed: if it is not, clever compilers will moan. */
2060 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2062 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2068 if (PL_op->op_flags & OPf_SPECIAL) {
2069 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2072 TAINT_PROPER("truncate");
2073 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2076 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2078 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2080 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2089 if (SvTYPE(sv) == SVt_PVGV) {
2090 tmpgv = (GV*)sv; /* *main::FRED for example */
2093 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2094 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2098 name = SvPV(sv, n_a);
2099 TAINT_PROPER("truncate");
2101 if (truncate(name, len) < 0)
2107 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2110 if (my_chsize(tmpfd, len) < 0)
2112 PerlLIO_close(tmpfd);
2121 SETERRNO(EBADF,RMS$_IFI);
2125 DIE(aTHX_ "truncate not implemented");
2138 unsigned int func = POPu;
2139 int optype = PL_op->op_type;
2143 IO *io = gv ? GvIOn(gv) : 0;
2145 if (!io || !argsv || !IoIFP(io)) {
2146 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2147 report_evil_fh(gv, io, PL_op->op_type);
2148 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
2152 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2155 s = SvPV_force(argsv, len);
2156 need = IOCPARM_LEN(func);
2158 s = Sv_Grow(argsv, need + 1);
2159 SvCUR_set(argsv, need);
2162 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2165 retval = SvIV(argsv);
2166 s = INT2PTR(char*,retval); /* ouch */
2169 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2171 if (optype == OP_IOCTL)
2173 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2175 DIE(aTHX_ "ioctl is not implemented");
2179 #if defined(OS2) && defined(__EMX__)
2180 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2182 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2185 DIE(aTHX_ "fcntl is not implemented");
2189 if (s[SvCUR(argsv)] != 17)
2190 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2192 s[SvCUR(argsv)] = 0; /* put our null back */
2193 SvSETMAGIC(argsv); /* Assume it has changed */
2202 PUSHp(zero_but_true, ZBTLEN);
2222 if (gv && (io = GvIO(gv)))
2229 (void)PerlIO_flush(fp);
2230 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2233 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2234 report_evil_fh(gv, io, PL_op->op_type);
2236 SETERRNO(EBADF,RMS$_IFI);
2241 DIE(aTHX_ PL_no_func, "flock()");
2253 int protocol = POPi;
2259 io = gv ? GvIOn(gv) : NULL;
2262 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2263 report_evil_fh(gv, io, PL_op->op_type);
2265 do_close(gv, FALSE);
2266 SETERRNO(EBADF,LIB$_INVARG);
2271 do_close(gv, FALSE);
2273 TAINT_PROPER("socket");
2274 fd = PerlSock_socket(domain, type, protocol);
2277 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2278 IoOFP(io) = PerlIO_fdopen(fd, "w");
2279 IoTYPE(io) = IoTYPE_SOCKET;
2280 if (!IoIFP(io) || !IoOFP(io)) {
2281 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2282 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2283 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2286 #if defined(HAS_FCNTL) && defined(F_SETFD)
2287 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2291 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2296 DIE(aTHX_ PL_no_sock_func, "socket");
2302 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2308 int protocol = POPi;
2315 io1 = gv1 ? GvIOn(gv1) : NULL;
2316 io2 = gv2 ? GvIOn(gv2) : NULL;
2317 if (!gv1 || !gv2 || !io1 || !io2) {
2318 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2320 report_evil_fh(gv1, io1, PL_op->op_type);
2322 report_evil_fh(gv1, io2, PL_op->op_type);
2325 do_close(gv1, FALSE);
2327 do_close(gv2, FALSE);
2332 do_close(gv1, FALSE);
2334 do_close(gv2, FALSE);
2336 TAINT_PROPER("socketpair");
2337 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2339 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2340 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
2341 IoTYPE(io1) = IoTYPE_SOCKET;
2342 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2343 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
2344 IoTYPE(io2) = IoTYPE_SOCKET;
2345 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2346 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2347 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2348 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2349 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2350 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2351 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2354 #if defined(HAS_FCNTL) && defined(F_SETFD)
2355 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2356 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2361 DIE(aTHX_ PL_no_sock_func, "socketpair");
2369 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2370 extern void GETPRIVMODE();
2371 extern void GETUSERMODE();
2376 register IO *io = GvIOn(gv);
2380 int mpeprivmode = 0;
2383 if (!io || !IoIFP(io))
2386 addr = SvPV(addrsv, len);
2387 TAINT_PROPER("bind");
2388 #ifdef MPE /* Deal with MPE bind() peculiarities */
2389 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2390 /* The address *MUST* stupidly be zero. */
2391 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2392 /* PRIV mode is required to bind() to ports < 1024. */
2393 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2394 ((struct sockaddr_in *)addr)->sin_port > 0) {
2395 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2400 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2401 (struct sockaddr *)addr, len) >= 0)
2404 #ifdef MPE /* Switch back to USER mode */
2415 if (ckWARN(WARN_CLOSED))
2416 report_evil_fh(gv, io, PL_op->op_type);
2417 SETERRNO(EBADF,SS$_IVCHAN);
2420 DIE(aTHX_ PL_no_sock_func, "bind");
2431 register IO *io = GvIOn(gv);
2434 if (!io || !IoIFP(io))
2437 addr = SvPV(addrsv, len);
2438 TAINT_PROPER("connect");
2439 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2445 if (ckWARN(WARN_CLOSED))
2446 report_evil_fh(gv, io, PL_op->op_type);
2447 SETERRNO(EBADF,SS$_IVCHAN);
2450 DIE(aTHX_ PL_no_sock_func, "connect");
2460 register IO *io = gv ? GvIOn(gv) : NULL;
2462 if (!gv || !io || !IoIFP(io))
2465 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2471 if (ckWARN(WARN_CLOSED))
2472 report_evil_fh(gv, io, PL_op->op_type);
2473 SETERRNO(EBADF,SS$_IVCHAN);
2476 DIE(aTHX_ PL_no_sock_func, "listen");
2488 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2489 Sock_size_t len = sizeof saddr;
2502 if (!gstio || !IoIFP(gstio))
2506 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2510 do_close(ngv, FALSE);
2511 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2512 /* FIXME: we dup(fd) here so that refcounting of fd's does not inhibit
2513 fclose of IoOFP's FILE * - and hence leak memory.
2514 Special treatment of _this_ case of IoIFP != IoOFP seems wrong.
2516 IoOFP(nstio) = PerlIO_fdopen(fd2 = PerlLIO_dup(fd), "w");
2517 IoTYPE(nstio) = IoTYPE_SOCKET;
2518 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2519 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2520 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2521 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2524 #if defined(HAS_FCNTL) && defined(F_SETFD)
2525 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2526 fcntl(fd2, F_SETFD, fd2 > PL_maxsysfd); /* ensure close-on-exec */
2530 len = sizeof saddr; /* EPOC somehow truncates info */
2531 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2534 PUSHp((char *)&saddr, len);
2538 if (ckWARN(WARN_CLOSED))
2539 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2540 SETERRNO(EBADF,SS$_IVCHAN);
2546 DIE(aTHX_ PL_no_sock_func, "accept");
2556 register IO *io = GvIOn(gv);
2558 if (!io || !IoIFP(io))
2561 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2565 if (ckWARN(WARN_CLOSED))
2566 report_evil_fh(gv, io, PL_op->op_type);
2567 SETERRNO(EBADF,SS$_IVCHAN);
2570 DIE(aTHX_ PL_no_sock_func, "shutdown");
2577 return pp_ssockopt();
2579 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2587 int optype = PL_op->op_type;
2590 unsigned int optname;
2596 if (optype == OP_GSOCKOPT)
2597 sv = sv_2mortal(NEWSV(22, 257));
2600 optname = (unsigned int) POPi;
2601 lvl = (unsigned int) POPi;
2605 if (!io || !IoIFP(io))
2608 fd = PerlIO_fileno(IoIFP(io));
2612 (void)SvPOK_only(sv);
2616 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2631 aint = (int)SvIV(sv);
2635 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2644 if (ckWARN(WARN_CLOSED))
2645 report_evil_fh(gv, io, optype);
2646 SETERRNO(EBADF,SS$_IVCHAN);
2651 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2658 return pp_getpeername();
2660 DIE(aTHX_ PL_no_sock_func, "getsockname");
2668 int optype = PL_op->op_type;
2672 register IO *io = GvIOn(gv);
2675 if (!io || !IoIFP(io))
2678 sv = sv_2mortal(NEWSV(22, 257));
2679 (void)SvPOK_only(sv);
2683 fd = PerlIO_fileno(IoIFP(io));
2685 case OP_GETSOCKNAME:
2686 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2689 case OP_GETPEERNAME:
2690 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2692 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2694 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";
2695 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2696 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2697 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2698 sizeof(u_short) + sizeof(struct in_addr))) {
2705 #ifdef BOGUS_GETNAME_RETURN
2706 /* Interactive Unix, getpeername() and getsockname()
2707 does not return valid namelen */
2708 if (len == BOGUS_GETNAME_RETURN)
2709 len = sizeof(struct sockaddr);
2717 if (ckWARN(WARN_CLOSED))
2718 report_evil_fh(gv, io, optype);
2719 SETERRNO(EBADF,SS$_IVCHAN);
2724 DIE(aTHX_ PL_no_sock_func, "getpeername");
2743 if (PL_op->op_flags & OPf_REF) {
2745 if (PL_op->op_type == OP_LSTAT) {
2746 if (gv != PL_defgv) {
2747 if (ckWARN(WARN_IO))
2748 Perl_warner(aTHX_ packWARN(WARN_IO),
2749 "lstat() on filehandle %s", GvENAME(gv));
2750 } else if (PL_laststype != OP_LSTAT)
2751 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2755 if (gv != PL_defgv) {
2756 PL_laststype = OP_STAT;
2758 sv_setpv(PL_statname, "");
2759 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2760 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2762 if (PL_laststatval < 0) {
2763 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2764 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2770 if (SvTYPE(sv) == SVt_PVGV) {
2774 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2776 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2777 Perl_warner(aTHX_ packWARN(WARN_IO),
2778 "lstat() on filehandle %s", GvENAME(gv));
2781 sv_setpv(PL_statname, SvPV(sv,n_a));
2784 PL_laststype = PL_op->op_type;
2785 if (PL_op->op_type == OP_LSTAT)
2786 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2789 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2790 if (PL_laststatval < 0) {
2791 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2792 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2798 if (gimme != G_ARRAY) {
2799 if (gimme != G_VOID)
2800 XPUSHs(boolSV(max));
2806 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2807 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2808 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2809 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2810 #if Uid_t_size > IVSIZE
2811 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2813 # if Uid_t_sign <= 0
2814 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2816 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2819 #if Gid_t_size > IVSIZE
2820 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2822 # if Gid_t_sign <= 0
2823 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2825 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2828 #ifdef USE_STAT_RDEV
2829 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2831 PUSHs(sv_2mortal(newSVpvn("", 0)));
2833 #if Off_t_size > IVSIZE
2834 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2836 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2839 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2840 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2841 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2843 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2844 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2845 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2847 #ifdef USE_STAT_BLOCKS
2848 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2849 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2851 PUSHs(sv_2mortal(newSVpvn("", 0)));
2852 PUSHs(sv_2mortal(newSVpvn("", 0)));
2862 #if defined(HAS_ACCESS) && defined(R_OK)
2864 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2865 result = access(TOPpx, R_OK);
2880 if (cando(S_IRUSR, 0, &PL_statcache))
2889 #if defined(HAS_ACCESS) && defined(W_OK)
2891 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2892 result = access(TOPpx, W_OK);
2907 if (cando(S_IWUSR, 0, &PL_statcache))
2916 #if defined(HAS_ACCESS) && defined(X_OK)
2918 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2919 result = access(TOPpx, X_OK);
2934 if (cando(S_IXUSR, 0, &PL_statcache))
2943 #ifdef PERL_EFF_ACCESS_R_OK
2945 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2946 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2961 if (cando(S_IRUSR, 1, &PL_statcache))
2970 #ifdef PERL_EFF_ACCESS_W_OK
2972 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2973 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2988 if (cando(S_IWUSR, 1, &PL_statcache))
2997 #ifdef PERL_EFF_ACCESS_X_OK
2999 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
3000 result = PERL_EFF_ACCESS_X_OK(TOPpx);
3015 if (cando(S_IXUSR, 1, &PL_statcache))
3022 I32 result = my_stat();
3031 return pp_ftrowned();
3036 I32 result = my_stat();
3040 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3048 I32 result = my_stat();
3052 if (PL_statcache.st_size == 0)
3059 I32 result = my_stat();
3063 #if Off_t_size > IVSIZE
3064 PUSHn(PL_statcache.st_size);
3066 PUSHi(PL_statcache.st_size);
3073 I32 result = my_stat();
3077 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3083 I32 result = my_stat();
3087 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3093 I32 result = my_stat();
3097 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3103 I32 result = my_stat();
3107 if (S_ISSOCK(PL_statcache.st_mode))
3114 I32 result = my_stat();
3118 if (S_ISCHR(PL_statcache.st_mode))
3125 I32 result = my_stat();
3129 if (S_ISBLK(PL_statcache.st_mode))
3136 I32 result = my_stat();
3140 if (S_ISREG(PL_statcache.st_mode))
3147 I32 result = my_stat();
3151 if (S_ISDIR(PL_statcache.st_mode))
3158 I32 result = my_stat();
3162 if (S_ISFIFO(PL_statcache.st_mode))
3169 I32 result = my_lstat();
3173 if (S_ISLNK(PL_statcache.st_mode))
3182 I32 result = my_stat();
3186 if (PL_statcache.st_mode & S_ISUID)
3196 I32 result = my_stat();
3200 if (PL_statcache.st_mode & S_ISGID)
3210 I32 result = my_stat();
3214 if (PL_statcache.st_mode & S_ISVTX)
3225 char *tmps = Nullch;
3228 if (PL_op->op_flags & OPf_REF)
3230 else if (isGV(TOPs))
3232 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3233 gv = (GV*)SvRV(POPs);
3235 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3237 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3238 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3239 else if (tmps && isDIGIT(*tmps))
3243 if (PerlLIO_isatty(fd))
3248 #if defined(atarist) /* this will work with atariST. Configure will
3249 make guesses for other systems. */
3250 # define FILE_base(f) ((f)->_base)
3251 # define FILE_ptr(f) ((f)->_ptr)
3252 # define FILE_cnt(f) ((f)->_cnt)
3253 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3263 register STDCHAR *s;
3270 if (PL_op->op_flags & OPf_REF)
3272 else if (isGV(TOPs))
3274 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3275 gv = (GV*)SvRV(POPs);
3281 if (gv == PL_defgv) {
3283 io = GvIO(PL_statgv);
3286 goto really_filename;
3291 PL_laststatval = -1;
3292 sv_setpv(PL_statname, "");
3293 io = GvIO(PL_statgv);
3295 if (io && IoIFP(io)) {
3296 if (! PerlIO_has_base(IoIFP(io)))
3297 DIE(aTHX_ "-T and -B not implemented on filehandles");
3298 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3299 if (PL_laststatval < 0)
3301 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3302 if (PL_op->op_type == OP_FTTEXT)
3307 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3308 i = PerlIO_getc(IoIFP(io));
3310 (void)PerlIO_ungetc(IoIFP(io),i);
3312 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3314 len = PerlIO_get_bufsiz(IoIFP(io));
3315 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3316 /* sfio can have large buffers - limit to 512 */
3321 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3323 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3325 SETERRNO(EBADF,RMS$_IFI);
3333 PL_laststatval = -1;
3334 PL_laststype = OP_STAT;
3335 sv_setpv(PL_statname, SvPV(sv, n_a));
3336 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3337 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3338 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3341 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3342 if (PL_laststatval < 0) {
3343 (void)PerlIO_close(fp);
3346 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3347 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3348 (void)PerlIO_close(fp);
3350 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3351 RETPUSHNO; /* special case NFS directories */
3352 RETPUSHYES; /* null file is anything */
3357 /* now scan s to look for textiness */
3358 /* XXX ASCII dependent code */
3360 #if defined(DOSISH) || defined(USEMYBINMODE)
3361 /* ignore trailing ^Z on short files */
3362 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3366 for (i = 0; i < len; i++, s++) {
3367 if (!*s) { /* null never allowed in text */
3372 else if (!(isPRINT(*s) || isSPACE(*s)))
3375 else if (*s & 128) {
3377 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3380 /* utf8 characters don't count as odd */
3381 if (UTF8_IS_START(*s)) {
3382 int ulen = UTF8SKIP(s);
3383 if (ulen < len - i) {
3385 for (j = 1; j < ulen; j++) {
3386 if (!UTF8_IS_CONTINUATION(s[j]))
3389 --ulen; /* loop does extra increment */
3399 *s != '\n' && *s != '\r' && *s != '\b' &&
3400 *s != '\t' && *s != '\f' && *s != 27)
3405 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3430 if( !tmps || !*tmps ) {
3431 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3432 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3434 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3439 deprecate("chdir('') or chdir(undef) as chdir()");
3440 tmps = SvPV(*svp, n_a);
3444 TAINT_PROPER("chdir");
3449 TAINT_PROPER("chdir");
3450 PUSHi( PerlDir_chdir(tmps) >= 0 );
3452 /* Clear the DEFAULT element of ENV so we'll get the new value
3454 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3462 dSP; dMARK; dTARGET;
3463 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3469 DIE(aTHX_ PL_no_func, "chown");
3479 TAINT_PROPER("chroot");
3480 PUSHi( chroot(tmps) >= 0 );
3483 DIE(aTHX_ PL_no_func, "chroot");
3489 dSP; dMARK; dTARGET;
3491 value = (I32)apply(PL_op->op_type, MARK, SP);
3499 dSP; dMARK; dTARGET;
3501 value = (I32)apply(PL_op->op_type, MARK, SP);
3509 dSP; dMARK; dTARGET;
3511 value = (I32)apply(PL_op->op_type, MARK, SP);
3523 char *tmps2 = POPpx;
3524 char *tmps = SvPV(TOPs, n_a);
3525 TAINT_PROPER("rename");
3527 anum = PerlLIO_rename(tmps, tmps2);
3529 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3530 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3533 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3534 (void)UNLINK(tmps2);
3535 if (!(anum = link(tmps, tmps2)))
3536 anum = UNLINK(tmps);
3549 char *tmps2 = POPpx;
3550 char *tmps = SvPV(TOPs, n_a);
3551 TAINT_PROPER("link");
3552 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3555 DIE(aTHX_ PL_no_func, "link");
3564 char *tmps2 = POPpx;
3565 char *tmps = SvPV(TOPs, n_a);
3566 TAINT_PROPER("symlink");
3567 SETi( symlink(tmps, tmps2) >= 0 );
3570 DIE(aTHX_ PL_no_func, "symlink");
3580 char buf[MAXPATHLEN];
3584 #ifndef INCOMPLETE_TAINTS
3588 len = readlink(tmps, buf, sizeof(buf) - 1);
3596 RETSETUNDEF; /* just pretend it's a normal file */
3600 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3602 S_dooneliner(pTHX_ char *cmd, char *filename)
3604 char *save_filename = filename;
3610 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3611 strcpy(cmdline, cmd);
3612 strcat(cmdline, " ");
3613 for (s = cmdline + strlen(cmdline); *filename; ) {
3618 myfp = PerlProc_popen(cmdline, "r");
3622 SV *tmpsv = sv_newmortal();
3623 /* Need to save/restore 'PL_rs' ?? */
3624 s = sv_gets(tmpsv, myfp, 0);
3625 (void)PerlProc_pclose(myfp);
3629 #ifdef HAS_SYS_ERRLIST
3634 /* you don't see this */
3636 #ifdef HAS_SYS_ERRLIST
3644 if (instr(s, errmsg)) {
3651 #define EACCES EPERM
3653 if (instr(s, "cannot make"))
3654 SETERRNO(EEXIST,RMS$_FEX);
3655 else if (instr(s, "existing file"))
3656 SETERRNO(EEXIST,RMS$_FEX);
3657 else if (instr(s, "ile exists"))
3658 SETERRNO(EEXIST,RMS$_FEX);
3659 else if (instr(s, "non-exist"))
3660 SETERRNO(ENOENT,RMS$_FNF);
3661 else if (instr(s, "does not exist"))
3662 SETERRNO(ENOENT,RMS$_FNF);
3663 else if (instr(s, "not empty"))
3664 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3665 else if (instr(s, "cannot access"))
3666 SETERRNO(EACCES,RMS$_PRV);
3668 SETERRNO(EPERM,RMS$_PRV);
3671 else { /* some mkdirs return no failure indication */
3672 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3673 if (PL_op->op_type == OP_RMDIR)
3678 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3703 tmps = SvPV(TOPs, len);
3704 /* Different operating and file systems take differently to
3705 * trailing slashes. According to POSIX 1003.1 1996 Edition
3706 * any number of trailing slashes should be allowed.
3707 * Thusly we snip them away so that even non-conforming
3708 * systems are happy. */
3709 /* We should probably do this "filtering" for all
3710 * the functions that expect (potentially) directory names:
3711 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3712 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3713 if (len > 1 && tmps[len-1] == '/') {
3714 while (tmps[len] == '/' && len > 1)
3716 tmps = savepvn(tmps, len);
3720 TAINT_PROPER("mkdir");
3722 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3724 SETi( dooneliner("mkdir", tmps) );
3725 oldumask = PerlLIO_umask(0);
3726 PerlLIO_umask(oldumask);
3727 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3741 TAINT_PROPER("rmdir");
3743 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3745 XPUSHi( dooneliner("rmdir", tmps) );
3750 /* Directory calls. */
3754 #if defined(Direntry_t) && defined(HAS_READDIR)
3757 char *dirname = POPpx;
3759 register IO *io = GvIOn(gv);
3765 PerlDir_close(IoDIRP(io));
3766 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3772 SETERRNO(EBADF,RMS$_DIR);
3775 DIE(aTHX_ PL_no_dir_func, "opendir");
3781 #if defined(Direntry_t) && defined(HAS_READDIR)
3783 #if !defined(I_DIRENT) && !defined(VMS)
3784 Direntry_t *readdir (DIR *);
3786 register Direntry_t *dp;
3788 register IO *io = GvIOn(gv);
3791 if (!io || !IoDIRP(io))
3794 if (GIMME == G_ARRAY) {
3796 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3798 sv = newSVpvn(dp->d_name, dp->d_namlen);
3800 sv = newSVpv(dp->d_name, 0);
3802 #ifndef INCOMPLETE_TAINTS
3803 if (!(IoFLAGS(io) & IOf_UNTAINT))
3806 XPUSHs(sv_2mortal(sv));
3810 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3813 sv = newSVpvn(dp->d_name, dp->d_namlen);
3815 sv = newSVpv(dp->d_name, 0);
3817 #ifndef INCOMPLETE_TAINTS
3818 if (!(IoFLAGS(io) & IOf_UNTAINT))
3821 XPUSHs(sv_2mortal(sv));
3827 SETERRNO(EBADF,RMS$_ISI);
3828 if (GIMME == G_ARRAY)
3833 DIE(aTHX_ PL_no_dir_func, "readdir");
3839 #if defined(HAS_TELLDIR) || defined(telldir)
3841 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3842 /* XXX netbsd still seemed to.
3843 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3844 --JHI 1999-Feb-02 */
3845 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3846 long telldir (DIR *);
3849 register IO *io = GvIOn(gv);
3851 if (!io || !IoDIRP(io))
3854 PUSHi( PerlDir_tell(IoDIRP(io)) );
3858 SETERRNO(EBADF,RMS$_ISI);
3861 DIE(aTHX_ PL_no_dir_func, "telldir");
3867 #if defined(HAS_SEEKDIR) || defined(seekdir)
3871 register IO *io = GvIOn(gv);
3873 if (!io || !IoDIRP(io))
3876 (void)PerlDir_seek(IoDIRP(io), along);
3881 SETERRNO(EBADF,RMS$_ISI);
3884 DIE(aTHX_ PL_no_dir_func, "seekdir");
3890 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3893 register IO *io = GvIOn(gv);
3895 if (!io || !IoDIRP(io))
3898 (void)PerlDir_rewind(IoDIRP(io));
3902 SETERRNO(EBADF,RMS$_ISI);
3905 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3911 #if defined(Direntry_t) && defined(HAS_READDIR)
3914 register IO *io = GvIOn(gv);
3916 if (!io || !IoDIRP(io))
3919 #ifdef VOID_CLOSEDIR
3920 PerlDir_close(IoDIRP(io));
3922 if (PerlDir_close(IoDIRP(io)) < 0) {
3923 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3932 SETERRNO(EBADF,RMS$_IFI);
3935 DIE(aTHX_ PL_no_dir_func, "closedir");
3939 /* Process control. */
3949 PERL_FLUSHALL_FOR_CHILD;
3950 childpid = PerlProc_fork();
3955 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3956 SvREADONLY_off(GvSV(tmpgv));
3957 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3958 SvREADONLY_on(GvSV(tmpgv));
3960 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3965 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3970 PERL_FLUSHALL_FOR_CHILD;
3971 childpid = PerlProc_fork();
3977 DIE(aTHX_ PL_no_func, "fork");
3984 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3989 #ifdef PERL_OLD_SIGNALS
3990 childpid = wait4pid(-1, &argflags, 0);
3992 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
3996 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3997 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3998 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4000 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4005 DIE(aTHX_ PL_no_func, "wait");
4011 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4019 #ifdef PERL_OLD_SIGNALS
4020 childpid = wait4pid(childpid, &argflags, optype);
4022 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
4026 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4027 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4028 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4030 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4035 DIE(aTHX_ PL_no_func, "waitpid");
4041 dSP; dMARK; dORIGMARK; dTARGET;
4049 while (++MARK <= SP) {
4050 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4055 /* XXX Remove warning at end of deprecation cycle --RD 2002-02 */
4056 if (SP - MARK == 1) {
4057 TAINT_PROPER("system");
4059 else if (ckWARN2(WARN_TAINT, WARN_DEPRECATED)) {
4060 Perl_warner(aTHX_ packWARN2(WARN_TAINT, WARN_DEPRECATED),
4061 "Use of tainted arguments in %s is deprecated", "system");
4064 PERL_FLUSHALL_FOR_CHILD;
4065 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4070 if (PerlProc_pipe(pp) >= 0)
4072 while ((childpid = PerlProc_fork()) == -1) {
4073 if (errno != EAGAIN) {
4078 PerlLIO_close(pp[0]);
4079 PerlLIO_close(pp[1]);
4086 Sigsave_t ihand,qhand; /* place to save signals during system() */
4090 PerlLIO_close(pp[1]);
4092 rsignal_save(SIGINT, SIG_IGN, &ihand);
4093 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4096 result = wait4pid(childpid, &status, 0);
4097 } while (result == -1 && errno == EINTR);
4099 (void)rsignal_restore(SIGINT, &ihand);
4100 (void)rsignal_restore(SIGQUIT, &qhand);
4102 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4103 do_execfree(); /* free any memory child malloced on fork */
4109 while (n < sizeof(int)) {
4110 n1 = PerlLIO_read(pp[0],
4111 (void*)(((char*)&errkid)+n),
4117 PerlLIO_close(pp[0]);
4118 if (n) { /* Error */
4119 if (n != sizeof(int))
4120 DIE(aTHX_ "panic: kid popen errno read");
4121 errno = errkid; /* Propagate errno from kid */
4122 STATUS_CURRENT = -1;
4125 PUSHi(STATUS_CURRENT);
4129 PerlLIO_close(pp[0]);
4130 #if defined(HAS_FCNTL) && defined(F_SETFD)
4131 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4134 if (PL_op->op_flags & OPf_STACKED) {
4135 SV *really = *++MARK;
4136 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4138 else if (SP - MARK != 1)
4139 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4141 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4145 #else /* ! FORK or VMS or OS/2 */
4148 if (PL_op->op_flags & OPf_STACKED) {
4149 SV *really = *++MARK;
4150 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4152 else if (SP - MARK != 1)
4153 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4155 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4157 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4159 STATUS_NATIVE_SET(value);
4162 PUSHi(result ? value : STATUS_CURRENT);
4163 #endif /* !FORK or VMS */
4169 dSP; dMARK; dORIGMARK; dTARGET;
4175 while (++MARK <= SP) {
4176 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4181 /* XXX Remove warning at end of deprecation cycle --RD 2002-02 */
4182 if (SP - MARK == 1) {
4183 TAINT_PROPER("exec");
4185 else if (ckWARN2(WARN_TAINT, WARN_DEPRECATED)) {
4186 Perl_warner(aTHX_ packWARN2(WARN_TAINT, WARN_DEPRECATED),
4187 "Use of tainted arguments in %s is deprecated", "exec");
4190 PERL_FLUSHALL_FOR_CHILD;
4191 if (PL_op->op_flags & OPf_STACKED) {
4192 SV *really = *++MARK;
4193 value = (I32)do_aexec(really, MARK, SP);
4195 else if (SP - MARK != 1)
4197 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4201 (void ) do_aspawn(Nullsv, MARK, SP);
4205 value = (I32)do_aexec(Nullsv, MARK, SP);
4210 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4213 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4216 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4229 dSP; dMARK; dTARGET;
4231 value = (I32)apply(PL_op->op_type, MARK, SP);
4236 DIE(aTHX_ PL_no_func, "kill");
4244 XPUSHi( getppid() );
4247 DIE(aTHX_ PL_no_func, "getppid");
4263 pgrp = (I32)BSD_GETPGRP(pid);
4265 if (pid != 0 && pid != PerlProc_getpid())
4266 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4272 DIE(aTHX_ PL_no_func, "getpgrp()");
4291 TAINT_PROPER("setpgrp");
4293 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4295 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4296 || (pid != 0 && pid != PerlProc_getpid()))
4298 DIE(aTHX_ "setpgrp can't take arguments");
4300 SETi( setpgrp() >= 0 );
4301 #endif /* USE_BSDPGRP */
4304 DIE(aTHX_ PL_no_func, "setpgrp()");
4310 #ifdef HAS_GETPRIORITY
4314 SETi( getpriority(which, who) );
4317 DIE(aTHX_ PL_no_func, "getpriority()");
4323 #ifdef HAS_SETPRIORITY
4328 TAINT_PROPER("setpriority");
4329 SETi( setpriority(which, who, niceval) >= 0 );
4332 DIE(aTHX_ PL_no_func, "setpriority()");
4342 XPUSHn( time(Null(Time_t*)) );
4344 XPUSHi( time(Null(Time_t*)) );
4349 /* XXX The POSIX name is CLK_TCK; it is to be preferred
4350 to HZ. Probably. For now, assume that if the system
4351 defines HZ, it does so correctly. (Will this break
4353 Probably we ought to use _sysconf(_SC_CLK_TCK), if
4354 it's supported. --AD 9/96.
4375 (void)PerlProc_times(&PL_timesbuf);
4377 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4378 /* struct tms, though same data */
4382 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/HZ)));
4383 if (GIMME == G_ARRAY) {
4384 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/HZ)));
4385 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/HZ)));
4386 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/HZ)));
4390 DIE(aTHX_ "times not implemented");
4391 #endif /* HAS_TIMES */
4404 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4405 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4406 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4412 when = (Time_t)SvNVx(POPs);
4414 when = (Time_t)SvIVx(POPs);
4417 if (PL_op->op_type == OP_LOCALTIME)
4418 tmbuf = localtime(&when);
4420 tmbuf = gmtime(&when);
4422 if (GIMME != G_ARRAY) {
4428 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4429 dayname[tmbuf->tm_wday],
4430 monname[tmbuf->tm_mon],
4435 tmbuf->tm_year + 1900);
4436 PUSHs(sv_2mortal(tsv));
4441 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4442 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4443 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4444 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4445 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4446 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4447 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4448 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4449 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4460 anum = alarm((unsigned int)anum);
4467 DIE(aTHX_ PL_no_func, "alarm");
4478 (void)time(&lasttime);
4483 PerlProc_sleep((unsigned int)duration);
4486 XPUSHi(when - lasttime);
4490 /* Shared memory. */
4504 return pp_shmwrite();
4509 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4510 dSP; dMARK; dTARGET;
4511 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4520 /* Message passing. */
4534 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4535 dSP; dMARK; dTARGET;
4536 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4547 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4548 dSP; dMARK; dTARGET;
4549 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4562 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4563 dSP; dMARK; dTARGET;
4564 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4571 DIE(aTHX_ "System V IPC is not implemented on this machine");
4577 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4578 dSP; dMARK; dTARGET;
4579 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4587 PUSHp(zero_but_true, ZBTLEN);
4597 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4598 dSP; dMARK; dTARGET;
4599 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4608 /* Get system info. */
4612 #ifdef HAS_GETHOSTBYNAME
4613 return pp_ghostent();
4615 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4621 #ifdef HAS_GETHOSTBYADDR
4622 return pp_ghostent();
4624 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4630 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4632 I32 which = PL_op->op_type;
4633 register char **elem;
4635 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4636 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4637 struct hostent *gethostbyname(Netdb_name_t);
4638 struct hostent *gethostent(void);
4640 struct hostent *hent;
4645 if (which == OP_GHBYNAME) {
4646 #ifdef HAS_GETHOSTBYNAME
4647 char* name = POPpbytex;
4648 hent = PerlSock_gethostbyname(name);
4650 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4653 else if (which == OP_GHBYADDR) {
4654 #ifdef HAS_GETHOSTBYADDR
4655 int addrtype = POPi;
4658 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4660 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4662 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4666 #ifdef HAS_GETHOSTENT
4667 hent = PerlSock_gethostent();
4669 DIE(aTHX_ PL_no_sock_func, "gethostent");
4672 #ifdef HOST_NOT_FOUND
4674 #ifdef USE_REENTRANT_API
4675 # ifdef USE_GETHOSTENT_ERRNO
4676 h_errno = PL_reentrant_buffer->_gethostent_errno;
4679 STATUS_NATIVE_SET(h_errno);
4683 if (GIMME != G_ARRAY) {
4684 PUSHs(sv = sv_newmortal());
4686 if (which == OP_GHBYNAME) {
4688 sv_setpvn(sv, hent->h_addr, hent->h_length);
4691 sv_setpv(sv, (char*)hent->h_name);
4697 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4698 sv_setpv(sv, (char*)hent->h_name);
4699 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4700 for (elem = hent->h_aliases; elem && *elem; elem++) {
4701 sv_catpv(sv, *elem);
4703 sv_catpvn(sv, " ", 1);
4705 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4706 sv_setiv(sv, (IV)hent->h_addrtype);
4707 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4708 len = hent->h_length;
4709 sv_setiv(sv, (IV)len);
4711 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4712 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4713 sv_setpvn(sv, *elem, len);
4716 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4718 sv_setpvn(sv, hent->h_addr, len);
4723 DIE(aTHX_ PL_no_sock_func, "gethostent");
4729 #ifdef HAS_GETNETBYNAME
4730 return pp_gnetent();
4732 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4738 #ifdef HAS_GETNETBYADDR
4739 return pp_gnetent();
4741 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4747 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4749 I32 which = PL_op->op_type;
4750 register char **elem;
4752 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4753 struct netent *getnetbyaddr(Netdb_net_t, int);
4754 struct netent *getnetbyname(Netdb_name_t);
4755 struct netent *getnetent(void);
4757 struct netent *nent;
4760 if (which == OP_GNBYNAME){
4761 #ifdef HAS_GETNETBYNAME
4762 char *name = POPpbytex;
4763 nent = PerlSock_getnetbyname(name);
4765 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4768 else if (which == OP_GNBYADDR) {
4769 #ifdef HAS_GETNETBYADDR
4770 int addrtype = POPi;
4771 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4772 nent = PerlSock_getnetbyaddr(addr, addrtype);
4774 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4778 #ifdef HAS_GETNETENT
4779 nent = PerlSock_getnetent();
4781 DIE(aTHX_ PL_no_sock_func, "getnetent");
4784 #ifdef HOST_NOT_FOUND
4786 #ifdef USE_REENTRANT_API
4787 # ifdef USE_GETNETENT_ERRNO
4788 h_errno = PL_reentrant_buffer->_getnetent_errno;
4791 STATUS_NATIVE_SET(h_errno);
4796 if (GIMME != G_ARRAY) {
4797 PUSHs(sv = sv_newmortal());
4799 if (which == OP_GNBYNAME)
4800 sv_setiv(sv, (IV)nent->n_net);
4802 sv_setpv(sv, nent->n_name);
4808 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4809 sv_setpv(sv, nent->n_name);
4810 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4811 for (elem = nent->n_aliases; elem && *elem; elem++) {
4812 sv_catpv(sv, *elem);
4814 sv_catpvn(sv, " ", 1);
4816 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4817 sv_setiv(sv, (IV)nent->n_addrtype);
4818 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4819 sv_setiv(sv, (IV)nent->n_net);
4824 DIE(aTHX_ PL_no_sock_func, "getnetent");
4830 #ifdef HAS_GETPROTOBYNAME
4831 return pp_gprotoent();
4833 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4839 #ifdef HAS_GETPROTOBYNUMBER
4840 return pp_gprotoent();
4842 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4848 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4850 I32 which = PL_op->op_type;
4851 register char **elem;
4853 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4854 struct protoent *getprotobyname(Netdb_name_t);
4855 struct protoent *getprotobynumber(int);
4856 struct protoent *getprotoent(void);
4858 struct protoent *pent;
4861 if (which == OP_GPBYNAME) {
4862 #ifdef HAS_GETPROTOBYNAME
4863 char* name = POPpbytex;
4864 pent = PerlSock_getprotobyname(name);
4866 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4869 else if (which == OP_GPBYNUMBER) {
4870 #ifdef HAS_GETPROTOBYNUMBER
4872 pent = PerlSock_getprotobynumber(number);
4874 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4878 #ifdef HAS_GETPROTOENT
4879 pent = PerlSock_getprotoent();
4881 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4885 if (GIMME != G_ARRAY) {
4886 PUSHs(sv = sv_newmortal());
4888 if (which == OP_GPBYNAME)
4889 sv_setiv(sv, (IV)pent->p_proto);
4891 sv_setpv(sv, pent->p_name);
4897 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4898 sv_setpv(sv, pent->p_name);
4899 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4900 for (elem = pent->p_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)pent->p_proto);
4911 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4917 #ifdef HAS_GETSERVBYNAME
4918 return pp_gservent();
4920 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4926 #ifdef HAS_GETSERVBYPORT
4927 return pp_gservent();
4929 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4935 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4937 I32 which = PL_op->op_type;
4938 register char **elem;
4940 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4941 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4942 struct servent *getservbyport(int, Netdb_name_t);
4943 struct servent *getservent(void);
4945 struct servent *sent;
4948 if (which == OP_GSBYNAME) {
4949 #ifdef HAS_GETSERVBYNAME
4950 char *proto = POPpbytex;
4951 char *name = POPpbytex;
4953 if (proto && !*proto)
4956 sent = PerlSock_getservbyname(name, proto);
4958 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4961 else if (which == OP_GSBYPORT) {
4962 #ifdef HAS_GETSERVBYPORT
4963 char *proto = POPpbytex;
4964 unsigned short port = (unsigned short)POPu;
4967 port = PerlSock_htons(port);
4969 sent = PerlSock_getservbyport(port, proto);
4971 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4975 #ifdef HAS_GETSERVENT
4976 sent = PerlSock_getservent();
4978 DIE(aTHX_ PL_no_sock_func, "getservent");
4982 if (GIMME != G_ARRAY) {
4983 PUSHs(sv = sv_newmortal());
4985 if (which == OP_GSBYNAME) {
4987 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4989 sv_setiv(sv, (IV)(sent->s_port));
4993 sv_setpv(sv, sent->s_name);
4999 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5000 sv_setpv(sv, sent->s_name);
5001 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5002 for (elem = sent->s_aliases; elem && *elem; elem++) {
5003 sv_catpv(sv, *elem);
5005 sv_catpvn(sv, " ", 1);
5007 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5009 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5011 sv_setiv(sv, (IV)(sent->s_port));
5013 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5014 sv_setpv(sv, sent->s_proto);
5019 DIE(aTHX_ PL_no_sock_func, "getservent");
5025 #ifdef HAS_SETHOSTENT
5027 PerlSock_sethostent(TOPi);
5030 DIE(aTHX_ PL_no_sock_func, "sethostent");
5036 #ifdef HAS_SETNETENT
5038 PerlSock_setnetent(TOPi);
5041 DIE(aTHX_ PL_no_sock_func, "setnetent");
5047 #ifdef HAS_SETPROTOENT
5049 PerlSock_setprotoent(TOPi);
5052 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5058 #ifdef HAS_SETSERVENT
5060 PerlSock_setservent(TOPi);
5063 DIE(aTHX_ PL_no_sock_func, "setservent");
5069 #ifdef HAS_ENDHOSTENT
5071 PerlSock_endhostent();
5075 DIE(aTHX_ PL_no_sock_func, "endhostent");
5081 #ifdef HAS_ENDNETENT
5083 PerlSock_endnetent();
5087 DIE(aTHX_ PL_no_sock_func, "endnetent");
5093 #ifdef HAS_ENDPROTOENT
5095 PerlSock_endprotoent();
5099 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5105 #ifdef HAS_ENDSERVENT
5107 PerlSock_endservent();
5111 DIE(aTHX_ PL_no_sock_func, "endservent");
5120 DIE(aTHX_ PL_no_func, "getpwnam");
5129 DIE(aTHX_ PL_no_func, "getpwuid");
5137 I32 which = PL_op->op_type;
5140 struct passwd *pwent = NULL;
5142 * We currently support only the SysV getsp* shadow password interface.
5143 * The interface is declared in <shadow.h> and often one needs to link
5144 * with -lsecurity or some such.
5145 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5148 * AIX getpwnam() is clever enough to return the encrypted password
5149 * only if the caller (euid?) is root.
5151 * There are at least two other shadow password APIs. Many platforms
5152 * seem to contain more than one interface for accessing the shadow
5153 * password databases, possibly for compatibility reasons.
5154 * The getsp*() is by far he simplest one, the other two interfaces
5155 * are much more complicated, but also very similar to each other.
5160 * struct pr_passwd *getprpw*();
5161 * The password is in
5162 * char getprpw*(...).ufld.fd_encrypt[]
5163 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5168 * struct es_passwd *getespw*();
5169 * The password is in
5170 * char *(getespw*(...).ufld.fd_encrypt)
5171 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5173 * Mention I_PROT here so that Configure probes for it.
5175 * In HP-UX for getprpw*() the manual page claims that one should include
5176 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5177 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5178 * and pp_sys.c already includes <shadow.h> if there is such.
5180 * Note that <sys/security.h> is already probed for, but currently
5181 * it is only included in special cases.
5183 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5184 * be preferred interface, even though also the getprpw*() interface
5185 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5186 * One also needs to call set_auth_parameters() in main() before
5187 * doing anything else, whether one is using getespw*() or getprpw*().
5189 * Note that accessing the shadow databases can be magnitudes
5190 * slower than accessing the standard databases.
5198 char* name = POPpbytex;
5199 pwent = getpwnam(name);
5205 pwent = getpwuid(uid);
5209 # ifdef HAS_GETPWENT
5212 DIE(aTHX_ PL_no_func, "getpwent");
5218 if (GIMME != G_ARRAY) {
5219 PUSHs(sv = sv_newmortal());
5221 if (which == OP_GPWNAM)
5222 # if Uid_t_sign <= 0
5223 sv_setiv(sv, (IV)pwent->pw_uid);
5225 sv_setuv(sv, (UV)pwent->pw_uid);
5228 sv_setpv(sv, pwent->pw_name);
5234 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5235 sv_setpv(sv, pwent->pw_name);
5237 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5239 /* If we have getspnam(), we try to dig up the shadow
5240 * password. If we are underprivileged, the shadow
5241 * interface will set the errno to EACCES or similar,
5242 * and return a null pointer. If this happens, we will
5243 * use the dummy password (usually "*" or "x") from the
5244 * standard password database.
5246 * In theory we could skip the shadow call completely
5247 * if euid != 0 but in practice we cannot know which
5248 * security measures are guarding the shadow databases
5249 * on a random platform.
5251 * Resist the urge to use additional shadow interfaces.
5252 * Divert the urge to writing an extension instead.
5255 # ifdef HAS_GETSPNAM
5257 struct spwd *spwent;
5258 int saverrno; /* Save and restore errno so that
5259 * underprivileged attempts seem
5260 * to have never made the unsccessful
5261 * attempt to retrieve the shadow password. */
5264 spwent = getspnam(pwent->pw_name);
5266 if (spwent && spwent->sp_pwdp)
5267 sv_setpv(sv, spwent->sp_pwdp);
5271 if (!SvPOK(sv)) /* Use the standard password, then. */
5272 sv_setpv(sv, pwent->pw_passwd);
5275 # ifndef INCOMPLETE_TAINTS
5276 /* passwd is tainted because user himself can diddle with it.
5277 * admittedly not much and in a very limited way, but nevertheless. */
5281 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5282 # if Uid_t_sign <= 0
5283 sv_setiv(sv, (IV)pwent->pw_uid);
5285 sv_setuv(sv, (UV)pwent->pw_uid);
5288 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5289 # if Uid_t_sign <= 0
5290 sv_setiv(sv, (IV)pwent->pw_gid);
5292 sv_setuv(sv, (UV)pwent->pw_gid);
5294 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5295 * because of the poor interface of the Perl getpw*(),
5296 * not because there's some standard/convention saying so.
5297 * A better interface would have been to return a hash,
5298 * but we are accursed by our history, alas. --jhi. */
5299 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5301 sv_setiv(sv, (IV)pwent->pw_change);
5304 sv_setiv(sv, (IV)pwent->pw_quota);
5307 sv_setpv(sv, pwent->pw_age);
5312 /* pw_class and pw_comment are mutually exclusive--.
5313 * see the above note for pw_change, pw_quota, and pw_age. */
5314 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5316 sv_setpv(sv, pwent->pw_class);
5319 sv_setpv(sv, pwent->pw_comment);
5323 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5325 sv_setpv(sv, pwent->pw_gecos);
5327 # ifndef INCOMPLETE_TAINTS
5328 /* pw_gecos is tainted because user himself can diddle with it. */
5332 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5333 sv_setpv(sv, pwent->pw_dir);
5335 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5336 sv_setpv(sv, pwent->pw_shell);
5337 # ifndef INCOMPLETE_TAINTS
5338 /* pw_shell is tainted because user himself can diddle with it. */
5343 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5344 sv_setiv(sv, (IV)pwent->pw_expire);
5349 DIE(aTHX_ PL_no_func, "getpwent");
5355 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5360 DIE(aTHX_ PL_no_func, "setpwent");
5366 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5371 DIE(aTHX_ PL_no_func, "endpwent");
5380 DIE(aTHX_ PL_no_func, "getgrnam");
5389 DIE(aTHX_ PL_no_func, "getgrgid");
5397 I32 which = PL_op->op_type;
5398 register char **elem;
5400 struct group *grent;
5403 if (which == OP_GGRNAM) {
5404 char* name = POPpbytex;
5405 grent = (struct group *)getgrnam(name);
5407 else if (which == OP_GGRGID) {
5409 grent = (struct group *)getgrgid(gid);
5413 grent = (struct group *)getgrent();
5415 DIE(aTHX_ PL_no_func, "getgrent");
5419 if (GIMME != G_ARRAY) {
5420 PUSHs(sv = sv_newmortal());
5422 if (which == OP_GGRNAM)
5423 sv_setiv(sv, (IV)grent->gr_gid);
5425 sv_setpv(sv, grent->gr_name);
5431 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5432 sv_setpv(sv, grent->gr_name);
5434 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5436 sv_setpv(sv, grent->gr_passwd);
5439 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5440 sv_setiv(sv, (IV)grent->gr_gid);
5442 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5443 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5444 /* In UNICOS/mk (_CRAYMPP) the multithreading
5445 * versions (getgrnam_r, getgrgid_r)
5446 * seem to return an illegal pointer
5447 * as the group members list, gr_mem.
5448 * getgrent() doesn't even have a _r version
5449 * but the gr_mem is poisonous anyway.
5450 * So yes, you cannot get the list of group
5451 * members if building multithreaded in UNICOS/mk. */
5452 for (elem = grent->gr_mem; elem && *elem; elem++) {
5453 sv_catpv(sv, *elem);
5455 sv_catpvn(sv, " ", 1);
5462 DIE(aTHX_ PL_no_func, "getgrent");
5468 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5473 DIE(aTHX_ PL_no_func, "setgrent");
5479 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5484 DIE(aTHX_ PL_no_func, "endgrent");
5494 if (!(tmps = PerlProc_getlogin()))
5496 PUSHp(tmps, strlen(tmps));
5499 DIE(aTHX_ PL_no_func, "getlogin");
5503 /* Miscellaneous. */
5508 dSP; dMARK; dORIGMARK; dTARGET;
5509 register I32 items = SP - MARK;
5510 unsigned long a[20];
5516 while (++MARK <= SP) {
5517 if (SvTAINTED(*MARK)) {
5523 TAINT_PROPER("syscall");
5526 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5527 * or where sizeof(long) != sizeof(char*). But such machines will
5528 * not likely have syscall implemented either, so who cares?
5530 while (++MARK <= SP) {
5531 if (SvNIOK(*MARK) || !i)
5532 a[i++] = SvIV(*MARK);
5533 else if (*MARK == &PL_sv_undef)
5536 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5542 DIE(aTHX_ "Too many args to syscall");
5544 DIE(aTHX_ "Too few args to syscall");
5546 retval = syscall(a[0]);
5549 retval = syscall(a[0],a[1]);
5552 retval = syscall(a[0],a[1],a[2]);
5555 retval = syscall(a[0],a[1],a[2],a[3]);
5558 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5561 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5564 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5567 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5571 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5574 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5577 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5581 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5585 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5589 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5590 a[10],a[11],a[12],a[13]);
5592 #endif /* atarist */
5598 DIE(aTHX_ PL_no_func, "syscall");
5602 #ifdef FCNTL_EMULATE_FLOCK
5604 /* XXX Emulate flock() with fcntl().
5605 What's really needed is a good file locking module.
5609 fcntl_emulate_flock(int fd, int operation)
5613 switch (operation & ~LOCK_NB) {
5615 flock.l_type = F_RDLCK;
5618 flock.l_type = F_WRLCK;
5621 flock.l_type = F_UNLCK;
5627 flock.l_whence = SEEK_SET;
5628 flock.l_start = flock.l_len = (Off_t)0;
5630 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5633 #endif /* FCNTL_EMULATE_FLOCK */
5635 #ifdef LOCKF_EMULATE_FLOCK
5637 /* XXX Emulate flock() with lockf(). This is just to increase
5638 portability of scripts. The calls are not completely
5639 interchangeable. What's really needed is a good file
5643 /* The lockf() constants might have been defined in <unistd.h>.
5644 Unfortunately, <unistd.h> causes troubles on some mixed
5645 (BSD/POSIX) systems, such as SunOS 4.1.3.
5647 Further, the lockf() constants aren't POSIX, so they might not be
5648 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5649 just stick in the SVID values and be done with it. Sigh.
5653 # define F_ULOCK 0 /* Unlock a previously locked region */
5656 # define F_LOCK 1 /* Lock a region for exclusive use */
5659 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5662 # define F_TEST 3 /* Test a region for other processes locks */
5666 lockf_emulate_flock(int fd, int operation)
5672 /* flock locks entire file so for lockf we need to do the same */
5674 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5675 if (pos > 0) /* is seekable and needs to be repositioned */
5676 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5677 pos = -1; /* seek failed, so don't seek back afterwards */
5680 switch (operation) {
5682 /* LOCK_SH - get a shared lock */
5684 /* LOCK_EX - get an exclusive lock */
5686 i = lockf (fd, F_LOCK, 0);
5689 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5690 case LOCK_SH|LOCK_NB:
5691 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5692 case LOCK_EX|LOCK_NB:
5693 i = lockf (fd, F_TLOCK, 0);
5695 if ((errno == EAGAIN) || (errno == EACCES))
5696 errno = EWOULDBLOCK;
5699 /* LOCK_UN - unlock (non-blocking is a no-op) */
5701 case LOCK_UN|LOCK_NB:
5702 i = lockf (fd, F_ULOCK, 0);
5705 /* Default - can't decipher operation */
5712 if (pos > 0) /* need to restore position of the handle */
5713 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5718 #endif /* LOCKF_EMULATE_FLOCK */