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) && how == PERL_MAGIC_tied)
829 "Self-ties of arrays and hashes are not supported");
830 sv_magic(varsv, sv, how, Nullch, 0);
833 SP = PL_stack_base + markoff;
843 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
844 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
846 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
849 if ((mg = SvTIED_mg(sv, how))) {
850 SV *obj = SvRV(mg->mg_obj);
854 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
855 isGV(gv) && (cv = GvCV(gv))) {
857 XPUSHs(SvTIED_obj((SV*)gv, mg));
858 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
861 call_sv((SV *)cv, G_VOID);
865 else if (ckWARN(WARN_UNTIE)) {
866 if (mg && SvREFCNT(obj) > 1)
867 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
868 "untie attempted while %"UVuf" inner references still exist",
869 (UV)SvREFCNT(obj) - 1 ) ;
872 sv_unmagic(sv, how) ;
882 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 *osv = SvTIED_obj(sv, mg);
890 if (osv == mg->mg_obj)
891 osv = sv_mortalcopy(osv);
909 sv = sv_mortalcopy(&PL_sv_no);
910 sv_setpv(sv, "AnyDBM_File");
911 stash = gv_stashsv(sv, FALSE);
912 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
914 require_pv("AnyDBM_File.pm");
916 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
917 DIE(aTHX_ "No dbm on this machine");
927 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
929 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
932 call_sv((SV*)GvCV(gv), G_SCALAR);
935 if (!sv_isobject(TOPs)) {
940 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
943 call_sv((SV*)GvCV(gv), G_SCALAR);
947 if (sv_isobject(TOPs)) {
948 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
949 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
971 struct timeval timebuf;
972 struct timeval *tbuf = &timebuf;
976 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
981 # if BYTEORDER & 0xf0000
982 # define ORDERBYTE (0x88888888 - BYTEORDER)
984 # define ORDERBYTE (0x4444 - BYTEORDER)
990 for (i = 1; i <= 3; i++) {
998 /* little endians can use vecs directly */
999 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1006 masksize = NFDBITS / NBBY;
1008 masksize = sizeof(long); /* documented int, everyone seems to use long */
1010 Zero(&fd_sets[0], 4, char*);
1013 # if SELECT_MIN_BITS > 1
1014 /* If SELECT_MIN_BITS is greater than one we most probably will want
1015 * to align the sizes with SELECT_MIN_BITS/8 because for example
1016 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1017 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1018 * on (sets/tests/clears bits) is 32 bits. */
1019 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1021 growsize = sizeof(fd_set);
1029 timebuf.tv_sec = (long)value;
1030 value -= (NV)timebuf.tv_sec;
1031 timebuf.tv_usec = (long)(value * 1000000.0);
1034 tbuf = Null(struct timeval*);
1036 for (i = 1; i <= 3; i++) {
1042 else if (!SvPOK(sv))
1043 SvPV_force(sv,n_a); /* force string conversion */
1046 Sv_Grow(sv, growsize);
1050 while (++j <= growsize) {
1054 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1056 New(403, fd_sets[i], growsize, char);
1057 for (offset = 0; offset < growsize; offset += masksize) {
1058 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1059 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1062 fd_sets[i] = SvPVX(sv);
1066 nfound = PerlSock_select(
1068 (Select_fd_set_t) fd_sets[1],
1069 (Select_fd_set_t) fd_sets[2],
1070 (Select_fd_set_t) fd_sets[3],
1072 for (i = 1; i <= 3; i++) {
1075 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1077 for (offset = 0; offset < growsize; offset += masksize) {
1078 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1079 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1081 Safefree(fd_sets[i]);
1088 if (GIMME == G_ARRAY && tbuf) {
1089 value = (NV)(timebuf.tv_sec) +
1090 (NV)(timebuf.tv_usec) / 1000000.0;
1091 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1092 sv_setnv(sv, value);
1096 DIE(aTHX_ "select not implemented");
1101 Perl_setdefout(pTHX_ GV *gv)
1104 (void)SvREFCNT_inc(gv);
1106 SvREFCNT_dec(PL_defoutgv);
1113 GV *newdefout, *egv;
1116 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1118 egv = GvEGV(PL_defoutgv);
1123 XPUSHs(&PL_sv_undef);
1125 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1126 if (gvp && *gvp == egv) {
1127 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1131 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1136 if (!GvIO(newdefout))
1137 gv_IOadd(newdefout);
1138 setdefout(newdefout);
1156 if (gv && (io = GvIO(gv))
1157 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1159 I32 gimme = GIMME_V;
1161 XPUSHs(SvTIED_obj((SV*)io, mg));
1164 call_method("GETC", gimme);
1167 if (gimme == G_SCALAR)
1168 SvSetMagicSV_nosteal(TARG, TOPs);
1171 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1172 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1173 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1174 report_evil_fh(gv, io, PL_op->op_type);
1178 sv_setpv(TARG, " ");
1179 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1180 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1181 /* Find out how many bytes the char needs */
1182 Size_t len = UTF8SKIP(SvPVX(TARG));
1185 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1186 SvCUR_set(TARG,1+len);
1196 return pp_sysread();
1200 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1202 register PERL_CONTEXT *cx;
1203 I32 gimme = GIMME_V;
1204 AV* padlist = CvPADLIST(cv);
1205 SV** svp = AvARRAY(padlist);
1211 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1213 SAVEVPTR(PL_curpad);
1214 PL_curpad = AvARRAY((AV*)svp[1]);
1216 setdefout(gv); /* locally select filehandle so $% et al work */
1249 SV *tmpsv = sv_newmortal();
1250 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1251 name = SvPV_nolen(tmpsv);
1254 DIE(aTHX_ "Undefined format \"%s\" called", name);
1255 DIE(aTHX_ "Not a format reference");
1258 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1260 IoFLAGS(io) &= ~IOf_DIDTOP;
1261 return doform(cv,gv,PL_op->op_next);
1267 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1268 register IO *io = GvIOp(gv);
1269 PerlIO *ofp = IoOFP(io);
1273 register PERL_CONTEXT *cx;
1275 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1276 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1279 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1280 PL_formtarget != PL_toptarget)
1284 if (!IoTOP_GV(io)) {
1288 if (!IoTOP_NAME(io)) {
1289 if (!IoFMT_NAME(io))
1290 IoFMT_NAME(io) = savepv(GvNAME(gv));
1291 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1292 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1293 if ((topgv && GvFORM(topgv)) ||
1294 !gv_fetchpv("top",FALSE,SVt_PVFM))
1295 IoTOP_NAME(io) = savepv(SvPVX(topname));
1297 IoTOP_NAME(io) = savepv("top");
1299 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1300 if (!topgv || !GvFORM(topgv)) {
1301 IoLINES_LEFT(io) = 100000000;
1304 IoTOP_GV(io) = topgv;
1306 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1307 I32 lines = IoLINES_LEFT(io);
1308 char *s = SvPVX(PL_formtarget);
1309 if (lines <= 0) /* Yow, header didn't even fit!!! */
1311 while (lines-- > 0) {
1312 s = strchr(s, '\n');
1318 STRLEN save = SvCUR(PL_formtarget);
1319 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1320 do_print(PL_formtarget, ofp);
1321 SvCUR_set(PL_formtarget, save);
1322 sv_chop(PL_formtarget, s);
1323 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1326 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1327 do_print(PL_formfeed, ofp);
1328 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1330 PL_formtarget = PL_toptarget;
1331 IoFLAGS(io) |= IOf_DIDTOP;
1334 DIE(aTHX_ "bad top format reference");
1339 SV *sv = sv_newmortal();
1340 gv_efullname4(sv, fgv, Nullch, FALSE);
1341 name = SvPV_nolen(sv);
1344 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1347 DIE(aTHX_ "Undefined top format called");
1351 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1352 return doform(cv,gv,PL_op);
1356 POPBLOCK(cx,PL_curpm);
1362 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1364 /* integrate with report_evil_fh()? */
1367 SV* sv = sv_newmortal();
1368 gv_efullname4(sv, gv, Nullch, FALSE);
1369 name = SvPV_nolen(sv);
1372 Perl_warner(aTHX_ packWARN(WARN_IO),
1373 "Filehandle %s opened only for input", name);
1375 Perl_warner(aTHX_ packWARN(WARN_IO),
1376 "Filehandle opened only for input");
1378 else if (ckWARN(WARN_CLOSED))
1379 report_evil_fh(gv, io, PL_op->op_type);
1384 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1385 if (ckWARN(WARN_IO))
1386 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1388 if (!do_print(PL_formtarget, fp))
1391 FmLINES(PL_formtarget) = 0;
1392 SvCUR_set(PL_formtarget, 0);
1393 *SvEND(PL_formtarget) = '\0';
1394 if (IoFLAGS(io) & IOf_FLUSH)
1395 (void)PerlIO_flush(fp);
1400 PL_formtarget = PL_bodytarget;
1402 return pop_return();
1407 dSP; dMARK; dORIGMARK;
1414 if (PL_op->op_flags & OPf_STACKED)
1419 if (gv && (io = GvIO(gv))
1420 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1422 if (MARK == ORIGMARK) {
1425 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1429 *MARK = SvTIED_obj((SV*)io, mg);
1432 call_method("PRINTF", G_SCALAR);
1435 MARK = ORIGMARK + 1;
1442 if (!(io = GvIO(gv))) {
1443 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1444 report_evil_fh(gv, io, PL_op->op_type);
1445 SETERRNO(EBADF,RMS$_IFI);
1448 else if (!(fp = IoOFP(io))) {
1449 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1450 /* integrate with report_evil_fh()? */
1454 gv_efullname4(sv, gv, Nullch, FALSE);
1455 name = SvPV_nolen(sv);
1458 Perl_warner(aTHX_ packWARN(WARN_IO),
1459 "Filehandle %s opened only for input", name);
1461 Perl_warner(aTHX_ packWARN(WARN_IO),
1462 "Filehandle opened only for input");
1464 else if (ckWARN(WARN_CLOSED))
1465 report_evil_fh(gv, io, PL_op->op_type);
1467 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1471 do_sprintf(sv, SP - MARK, MARK + 1);
1472 if (!do_print(sv, fp))
1475 if (IoFLAGS(io) & IOf_FLUSH)
1476 if (PerlIO_flush(fp) == EOF)
1487 PUSHs(&PL_sv_undef);
1508 /* Need TIEHANDLE method ? */
1510 tmps = SvPV(sv, len);
1511 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1512 IoLINES(GvIOp(gv)) = 0;
1516 PUSHs(&PL_sv_undef);
1523 dSP; dMARK; dORIGMARK; dTARGET;
1530 Sock_size_t bufsize;
1537 bool charstart = FALSE;
1538 STRLEN charskip = 0;
1542 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1543 && gv && (io = GvIO(gv))
1544 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1549 *MARK = SvTIED_obj((SV*)io, mg);
1551 call_method("READ", G_SCALAR);
1564 sv_setpvn(bufsv, "", 0);
1565 length = SvIVx(*++MARK);
1568 offset = SvIVx(*++MARK);
1572 if (!io || !IoIFP(io))
1574 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1575 buffer = SvPVutf8_force(bufsv, blen);
1576 /* UTF8 may not have been set if they are all low bytes */
1580 buffer = SvPV_force(bufsv, blen);
1583 DIE(aTHX_ "Negative length");
1591 if (PL_op->op_type == OP_RECV) {
1592 char namebuf[MAXPATHLEN];
1593 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1594 bufsize = sizeof (struct sockaddr_in);
1596 bufsize = sizeof namebuf;
1598 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1602 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1603 /* 'offset' means 'flags' here */
1604 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1605 (struct sockaddr *)namebuf, &bufsize);
1609 /* Bogus return without padding */
1610 bufsize = sizeof (struct sockaddr_in);
1612 SvCUR_set(bufsv, count);
1613 *SvEND(bufsv) = '\0';
1614 (void)SvPOK_only(bufsv);
1618 /* This should not be marked tainted if the fp is marked clean */
1619 if (!(IoFLAGS(io) & IOf_UNTAINT))
1620 SvTAINTED_on(bufsv);
1622 sv_setpvn(TARG, namebuf, bufsize);
1627 if (PL_op->op_type == OP_RECV)
1628 DIE(aTHX_ PL_no_sock_func, "recv");
1630 if (DO_UTF8(bufsv)) {
1631 /* offset adjust in characters not bytes */
1632 blen = sv_len_utf8(bufsv);
1635 if (-offset > (int)blen)
1636 DIE(aTHX_ "Offset outside string");
1639 if (DO_UTF8(bufsv)) {
1640 /* convert offset-as-chars to offset-as-bytes */
1641 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1644 bufsize = SvCUR(bufsv);
1645 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1646 if (offset > bufsize) { /* Zero any newly allocated space */
1647 Zero(buffer+bufsize, offset-bufsize, char);
1649 buffer = buffer + offset;
1651 if (PL_op->op_type == OP_SYSREAD) {
1652 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1653 if (IoTYPE(io) == IoTYPE_SOCKET) {
1654 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1660 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1665 #ifdef HAS_SOCKET__bad_code_maybe
1666 if (IoTYPE(io) == IoTYPE_SOCKET) {
1667 char namebuf[MAXPATHLEN];
1668 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1669 bufsize = sizeof (struct sockaddr_in);
1671 bufsize = sizeof namebuf;
1673 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1674 (struct sockaddr *)namebuf, &bufsize);
1679 count = PerlIO_read(IoIFP(io), buffer, length);
1680 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1681 if (count == 0 && PerlIO_error(IoIFP(io)))
1685 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1687 /* integrate with report_evil_fh()? */
1690 SV* sv = sv_newmortal();
1691 gv_efullname4(sv, gv, Nullch, FALSE);
1692 name = SvPV_nolen(sv);
1695 Perl_warner(aTHX_ packWARN(WARN_IO),
1696 "Filehandle %s opened only for output", name);
1698 Perl_warner(aTHX_ packWARN(WARN_IO),
1699 "Filehandle opened only for output");
1703 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1704 *SvEND(bufsv) = '\0';
1705 (void)SvPOK_only(bufsv);
1706 if (fp_utf8 && !IN_BYTES) {
1707 /* Look at utf8 we got back and count the characters */
1708 char *bend = buffer + count;
1709 while (buffer < bend) {
1711 skip = UTF8SKIP(buffer);
1714 if (buffer - charskip + skip > bend) {
1715 /* partial character - try for rest of it */
1716 length = skip - (bend-buffer);
1717 offset = bend - SvPVX(bufsv);
1729 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1730 provided amount read (count) was what was requested (length)
1732 if (got < wanted && count == length) {
1733 length = wanted - got;
1734 offset = bend - SvPVX(bufsv);
1737 /* return value is character count */
1742 /* This should not be marked tainted if the fp is marked clean */
1743 if (!(IoFLAGS(io) & IOf_UNTAINT))
1744 SvTAINTED_on(bufsv);
1757 int items = (SP - PL_stack_base) - TOPMARK;
1761 sv = sv_2mortal(newSViv(sv_len(*SP)));
1770 dSP; dMARK; dORIGMARK; dTARGET;
1781 if (PL_op->op_type == OP_SYSWRITE
1782 && gv && (io = GvIO(gv))
1783 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1788 *MARK = SvTIED_obj((SV*)io, mg);
1790 call_method("WRITE", G_SCALAR);
1801 #if Size_t_size > IVSIZE
1802 length = (Size_t)SvNVx(*++MARK);
1804 length = (Size_t)SvIVx(*++MARK);
1806 if ((SSize_t)length < 0)
1807 DIE(aTHX_ "Negative length");
1810 if (!io || !IoIFP(io)) {
1812 if (ckWARN(WARN_CLOSED))
1813 report_evil_fh(gv, io, PL_op->op_type);
1817 if (PerlIO_isutf8(IoIFP(io))) {
1818 buffer = SvPVutf8(bufsv, blen);
1822 sv_utf8_downgrade(bufsv, FALSE);
1823 buffer = SvPV(bufsv, blen);
1826 if (PL_op->op_type == OP_SYSWRITE) {
1828 if (DO_UTF8(bufsv)) {
1829 /* length and offset are in chars */
1830 blen = sv_len_utf8(bufsv);
1833 offset = SvIVx(*++MARK);
1835 if (-offset > (IV)blen)
1836 DIE(aTHX_ "Offset outside string");
1838 } else if (offset >= (IV)blen && blen > 0)
1839 DIE(aTHX_ "Offset outside string");
1842 if (length > blen - offset)
1843 length = blen - offset;
1844 if (DO_UTF8(bufsv)) {
1845 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1846 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1849 buffer = buffer+offset;
1851 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1852 if (IoTYPE(io) == IoTYPE_SOCKET) {
1853 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1859 /* See the note at doio.c:do_print about filesize limits. --jhi */
1860 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1865 else if (SP > MARK) {
1868 sockbuf = SvPVx(*++MARK, mlen);
1869 /* length is really flags */
1870 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1871 length, (struct sockaddr *)sockbuf, mlen);
1874 /* length is really flags */
1875 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1878 DIE(aTHX_ PL_no_sock_func, "send");
1884 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1885 #if Size_t_size > IVSIZE
1899 return pp_sysread();
1910 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1912 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1914 if (io && !IoIFP(io)) {
1915 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1917 IoFLAGS(io) &= ~IOf_START;
1918 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1919 sv_setpvn(GvSV(gv), "-", 1);
1920 SvSETMAGIC(GvSV(gv));
1922 else if (!nextargv(gv))
1927 gv = PL_last_in_gv; /* eof */
1930 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1932 if (gv && (io = GvIO(gv))
1933 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1936 XPUSHs(SvTIED_obj((SV*)io, mg));
1939 call_method("EOF", G_SCALAR);
1945 PUSHs(boolSV(!gv || do_eof(gv)));
1959 gv = PL_last_in_gv = (GV*)POPs;
1961 if (gv && (io = GvIO(gv))
1962 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1965 XPUSHs(SvTIED_obj((SV*)io, mg));
1968 call_method("TELL", G_SCALAR);
1974 #if LSEEKSIZE > IVSIZE
1975 PUSHn( do_tell(gv) );
1977 PUSHi( do_tell(gv) );
1984 return pp_sysseek();
1993 #if LSEEKSIZE > IVSIZE
1994 Off_t offset = (Off_t)SvNVx(POPs);
1996 Off_t offset = (Off_t)SvIVx(POPs);
2000 gv = PL_last_in_gv = (GV*)POPs;
2002 if (gv && (io = GvIO(gv))
2003 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2006 XPUSHs(SvTIED_obj((SV*)io, mg));
2007 #if LSEEKSIZE > IVSIZE
2008 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2010 XPUSHs(sv_2mortal(newSViv(offset)));
2012 XPUSHs(sv_2mortal(newSViv(whence)));
2015 call_method("SEEK", G_SCALAR);
2021 if (PL_op->op_type == OP_SEEK)
2022 PUSHs(boolSV(do_seek(gv, offset, whence)));
2024 Off_t sought = do_sysseek(gv, offset, whence);
2026 PUSHs(&PL_sv_undef);
2029 #if LSEEKSIZE > IVSIZE
2034 : newSVpvn(zero_but_true, ZBTLEN);
2035 PUSHs(sv_2mortal(sv));
2044 /* There seems to be no consensus on the length type of truncate()
2045 * and ftruncate(), both off_t and size_t have supporters. In
2046 * general one would think that when using large files, off_t is
2047 * at least as wide as size_t, so using an off_t should be okay. */
2048 /* XXX Configure probe for the length type of *truncate() needed XXX */
2051 #if Size_t_size > IVSIZE
2056 /* Checking for length < 0 is problematic as the type might or
2057 * might not be signed: if it is not, clever compilers will moan. */
2058 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2060 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2066 if (PL_op->op_flags & OPf_SPECIAL) {
2067 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2070 TAINT_PROPER("truncate");
2071 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2074 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2076 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2078 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2087 if (SvTYPE(sv) == SVt_PVGV) {
2088 tmpgv = (GV*)sv; /* *main::FRED for example */
2091 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2092 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2096 name = SvPV(sv, n_a);
2097 TAINT_PROPER("truncate");
2099 if (truncate(name, len) < 0)
2105 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2108 if (my_chsize(tmpfd, len) < 0)
2110 PerlLIO_close(tmpfd);
2119 SETERRNO(EBADF,RMS$_IFI);
2123 DIE(aTHX_ "truncate not implemented");
2136 unsigned int func = POPu;
2137 int optype = PL_op->op_type;
2141 IO *io = gv ? GvIOn(gv) : 0;
2143 if (!io || !argsv || !IoIFP(io)) {
2144 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2145 report_evil_fh(gv, io, PL_op->op_type);
2146 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
2150 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2153 s = SvPV_force(argsv, len);
2154 need = IOCPARM_LEN(func);
2156 s = Sv_Grow(argsv, need + 1);
2157 SvCUR_set(argsv, need);
2160 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2163 retval = SvIV(argsv);
2164 s = INT2PTR(char*,retval); /* ouch */
2167 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2169 if (optype == OP_IOCTL)
2171 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2173 DIE(aTHX_ "ioctl is not implemented");
2177 #if defined(OS2) && defined(__EMX__)
2178 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2180 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2183 DIE(aTHX_ "fcntl is not implemented");
2187 if (s[SvCUR(argsv)] != 17)
2188 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2190 s[SvCUR(argsv)] = 0; /* put our null back */
2191 SvSETMAGIC(argsv); /* Assume it has changed */
2200 PUSHp(zero_but_true, ZBTLEN);
2220 if (gv && (io = GvIO(gv)))
2227 (void)PerlIO_flush(fp);
2228 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2231 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2232 report_evil_fh(gv, io, PL_op->op_type);
2234 SETERRNO(EBADF,RMS$_IFI);
2239 DIE(aTHX_ PL_no_func, "flock()");
2251 int protocol = POPi;
2257 io = gv ? GvIOn(gv) : NULL;
2260 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2261 report_evil_fh(gv, io, PL_op->op_type);
2263 do_close(gv, FALSE);
2264 SETERRNO(EBADF,LIB$_INVARG);
2269 do_close(gv, FALSE);
2271 TAINT_PROPER("socket");
2272 fd = PerlSock_socket(domain, type, protocol);
2275 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2276 IoOFP(io) = PerlIO_fdopen(fd, "w");
2277 IoTYPE(io) = IoTYPE_SOCKET;
2278 if (!IoIFP(io) || !IoOFP(io)) {
2279 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2280 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2281 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2284 #if defined(HAS_FCNTL) && defined(F_SETFD)
2285 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2289 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2294 DIE(aTHX_ PL_no_sock_func, "socket");
2300 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2306 int protocol = POPi;
2313 io1 = gv1 ? GvIOn(gv1) : NULL;
2314 io2 = gv2 ? GvIOn(gv2) : NULL;
2315 if (!gv1 || !gv2 || !io1 || !io2) {
2316 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2318 report_evil_fh(gv1, io1, PL_op->op_type);
2320 report_evil_fh(gv1, io2, PL_op->op_type);
2323 do_close(gv1, FALSE);
2325 do_close(gv2, FALSE);
2330 do_close(gv1, FALSE);
2332 do_close(gv2, FALSE);
2334 TAINT_PROPER("socketpair");
2335 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2337 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2338 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
2339 IoTYPE(io1) = IoTYPE_SOCKET;
2340 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2341 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
2342 IoTYPE(io2) = IoTYPE_SOCKET;
2343 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2344 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2345 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2346 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2347 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2348 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2349 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2352 #if defined(HAS_FCNTL) && defined(F_SETFD)
2353 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2354 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2359 DIE(aTHX_ PL_no_sock_func, "socketpair");
2367 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2368 extern void GETPRIVMODE();
2369 extern void GETUSERMODE();
2374 register IO *io = GvIOn(gv);
2378 int mpeprivmode = 0;
2381 if (!io || !IoIFP(io))
2384 addr = SvPV(addrsv, len);
2385 TAINT_PROPER("bind");
2386 #ifdef MPE /* Deal with MPE bind() peculiarities */
2387 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2388 /* The address *MUST* stupidly be zero. */
2389 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2390 /* PRIV mode is required to bind() to ports < 1024. */
2391 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2392 ((struct sockaddr_in *)addr)->sin_port > 0) {
2393 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2398 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2399 (struct sockaddr *)addr, len) >= 0)
2402 #ifdef MPE /* Switch back to USER mode */
2413 if (ckWARN(WARN_CLOSED))
2414 report_evil_fh(gv, io, PL_op->op_type);
2415 SETERRNO(EBADF,SS$_IVCHAN);
2418 DIE(aTHX_ PL_no_sock_func, "bind");
2429 register IO *io = GvIOn(gv);
2432 if (!io || !IoIFP(io))
2435 addr = SvPV(addrsv, len);
2436 TAINT_PROPER("connect");
2437 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2443 if (ckWARN(WARN_CLOSED))
2444 report_evil_fh(gv, io, PL_op->op_type);
2445 SETERRNO(EBADF,SS$_IVCHAN);
2448 DIE(aTHX_ PL_no_sock_func, "connect");
2458 register IO *io = gv ? GvIOn(gv) : NULL;
2460 if (!gv || !io || !IoIFP(io))
2463 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2469 if (ckWARN(WARN_CLOSED))
2470 report_evil_fh(gv, io, PL_op->op_type);
2471 SETERRNO(EBADF,SS$_IVCHAN);
2474 DIE(aTHX_ PL_no_sock_func, "listen");
2486 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2487 Sock_size_t len = sizeof saddr;
2500 if (!gstio || !IoIFP(gstio))
2504 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2508 do_close(ngv, FALSE);
2509 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2510 /* FIXME: we dup(fd) here so that refcounting of fd's does not inhibit
2511 fclose of IoOFP's FILE * - and hence leak memory.
2512 Special treatment of _this_ case of IoIFP != IoOFP seems wrong.
2514 IoOFP(nstio) = PerlIO_fdopen(fd2 = PerlLIO_dup(fd), "w");
2515 IoTYPE(nstio) = IoTYPE_SOCKET;
2516 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2517 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2518 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2519 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2522 #if defined(HAS_FCNTL) && defined(F_SETFD)
2523 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2524 fcntl(fd2, F_SETFD, fd2 > PL_maxsysfd); /* ensure close-on-exec */
2528 len = sizeof saddr; /* EPOC somehow truncates info */
2529 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2532 PUSHp((char *)&saddr, len);
2536 if (ckWARN(WARN_CLOSED))
2537 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2538 SETERRNO(EBADF,SS$_IVCHAN);
2544 DIE(aTHX_ PL_no_sock_func, "accept");
2554 register IO *io = GvIOn(gv);
2556 if (!io || !IoIFP(io))
2559 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2563 if (ckWARN(WARN_CLOSED))
2564 report_evil_fh(gv, io, PL_op->op_type);
2565 SETERRNO(EBADF,SS$_IVCHAN);
2568 DIE(aTHX_ PL_no_sock_func, "shutdown");
2575 return pp_ssockopt();
2577 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2585 int optype = PL_op->op_type;
2588 unsigned int optname;
2594 if (optype == OP_GSOCKOPT)
2595 sv = sv_2mortal(NEWSV(22, 257));
2598 optname = (unsigned int) POPi;
2599 lvl = (unsigned int) POPi;
2603 if (!io || !IoIFP(io))
2606 fd = PerlIO_fileno(IoIFP(io));
2610 (void)SvPOK_only(sv);
2614 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2629 aint = (int)SvIV(sv);
2633 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2642 if (ckWARN(WARN_CLOSED))
2643 report_evil_fh(gv, io, optype);
2644 SETERRNO(EBADF,SS$_IVCHAN);
2649 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2656 return pp_getpeername();
2658 DIE(aTHX_ PL_no_sock_func, "getsockname");
2666 int optype = PL_op->op_type;
2670 register IO *io = GvIOn(gv);
2673 if (!io || !IoIFP(io))
2676 sv = sv_2mortal(NEWSV(22, 257));
2677 (void)SvPOK_only(sv);
2681 fd = PerlIO_fileno(IoIFP(io));
2683 case OP_GETSOCKNAME:
2684 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2687 case OP_GETPEERNAME:
2688 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2690 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2692 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";
2693 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2694 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2695 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2696 sizeof(u_short) + sizeof(struct in_addr))) {
2703 #ifdef BOGUS_GETNAME_RETURN
2704 /* Interactive Unix, getpeername() and getsockname()
2705 does not return valid namelen */
2706 if (len == BOGUS_GETNAME_RETURN)
2707 len = sizeof(struct sockaddr);
2715 if (ckWARN(WARN_CLOSED))
2716 report_evil_fh(gv, io, optype);
2717 SETERRNO(EBADF,SS$_IVCHAN);
2722 DIE(aTHX_ PL_no_sock_func, "getpeername");
2741 if (PL_op->op_flags & OPf_REF) {
2743 if (PL_op->op_type == OP_LSTAT) {
2744 if (gv != PL_defgv) {
2745 if (ckWARN(WARN_IO))
2746 Perl_warner(aTHX_ packWARN(WARN_IO),
2747 "lstat() on filehandle %s", GvENAME(gv));
2748 } else if (PL_laststype != OP_LSTAT)
2749 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2753 if (gv != PL_defgv) {
2754 PL_laststype = OP_STAT;
2756 sv_setpv(PL_statname, "");
2757 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2758 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2760 if (PL_laststatval < 0) {
2761 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2762 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2768 if (SvTYPE(sv) == SVt_PVGV) {
2772 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2774 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2775 Perl_warner(aTHX_ packWARN(WARN_IO),
2776 "lstat() on filehandle %s", GvENAME(gv));
2779 sv_setpv(PL_statname, SvPV(sv,n_a));
2782 PL_laststype = PL_op->op_type;
2783 if (PL_op->op_type == OP_LSTAT)
2784 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2787 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2788 if (PL_laststatval < 0) {
2789 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2790 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2796 if (gimme != G_ARRAY) {
2797 if (gimme != G_VOID)
2798 XPUSHs(boolSV(max));
2804 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2805 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2806 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2807 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2808 #if Uid_t_size > IVSIZE
2809 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2811 # if Uid_t_sign <= 0
2812 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2814 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2817 #if Gid_t_size > IVSIZE
2818 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2820 # if Gid_t_sign <= 0
2821 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2823 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2826 #ifdef USE_STAT_RDEV
2827 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2829 PUSHs(sv_2mortal(newSVpvn("", 0)));
2831 #if Off_t_size > IVSIZE
2832 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2834 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2837 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2838 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2839 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2841 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2842 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2843 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2845 #ifdef USE_STAT_BLOCKS
2846 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2847 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2849 PUSHs(sv_2mortal(newSVpvn("", 0)));
2850 PUSHs(sv_2mortal(newSVpvn("", 0)));
2860 #if defined(HAS_ACCESS) && defined(R_OK)
2862 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2863 result = access(TOPpx, R_OK);
2878 if (cando(S_IRUSR, 0, &PL_statcache))
2887 #if defined(HAS_ACCESS) && defined(W_OK)
2889 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2890 result = access(TOPpx, W_OK);
2905 if (cando(S_IWUSR, 0, &PL_statcache))
2914 #if defined(HAS_ACCESS) && defined(X_OK)
2916 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2917 result = access(TOPpx, X_OK);
2932 if (cando(S_IXUSR, 0, &PL_statcache))
2941 #ifdef PERL_EFF_ACCESS_R_OK
2943 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2944 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2959 if (cando(S_IRUSR, 1, &PL_statcache))
2968 #ifdef PERL_EFF_ACCESS_W_OK
2970 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2971 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2986 if (cando(S_IWUSR, 1, &PL_statcache))
2995 #ifdef PERL_EFF_ACCESS_X_OK
2997 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2998 result = PERL_EFF_ACCESS_X_OK(TOPpx);
3013 if (cando(S_IXUSR, 1, &PL_statcache))
3020 I32 result = my_stat();
3029 return pp_ftrowned();
3034 I32 result = my_stat();
3038 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3046 I32 result = my_stat();
3050 if (PL_statcache.st_size == 0)
3057 I32 result = my_stat();
3061 #if Off_t_size > IVSIZE
3062 PUSHn(PL_statcache.st_size);
3064 PUSHi(PL_statcache.st_size);
3071 I32 result = my_stat();
3075 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3081 I32 result = my_stat();
3085 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3091 I32 result = my_stat();
3095 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3101 I32 result = my_stat();
3105 if (S_ISSOCK(PL_statcache.st_mode))
3112 I32 result = my_stat();
3116 if (S_ISCHR(PL_statcache.st_mode))
3123 I32 result = my_stat();
3127 if (S_ISBLK(PL_statcache.st_mode))
3134 I32 result = my_stat();
3138 if (S_ISREG(PL_statcache.st_mode))
3145 I32 result = my_stat();
3149 if (S_ISDIR(PL_statcache.st_mode))
3156 I32 result = my_stat();
3160 if (S_ISFIFO(PL_statcache.st_mode))
3167 I32 result = my_lstat();
3171 if (S_ISLNK(PL_statcache.st_mode))
3180 I32 result = my_stat();
3184 if (PL_statcache.st_mode & S_ISUID)
3194 I32 result = my_stat();
3198 if (PL_statcache.st_mode & S_ISGID)
3208 I32 result = my_stat();
3212 if (PL_statcache.st_mode & S_ISVTX)
3223 char *tmps = Nullch;
3226 if (PL_op->op_flags & OPf_REF)
3228 else if (isGV(TOPs))
3230 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3231 gv = (GV*)SvRV(POPs);
3233 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3235 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3236 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3237 else if (tmps && isDIGIT(*tmps))
3241 if (PerlLIO_isatty(fd))
3246 #if defined(atarist) /* this will work with atariST. Configure will
3247 make guesses for other systems. */
3248 # define FILE_base(f) ((f)->_base)
3249 # define FILE_ptr(f) ((f)->_ptr)
3250 # define FILE_cnt(f) ((f)->_cnt)
3251 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3261 register STDCHAR *s;
3268 if (PL_op->op_flags & OPf_REF)
3270 else if (isGV(TOPs))
3272 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3273 gv = (GV*)SvRV(POPs);
3279 if (gv == PL_defgv) {
3281 io = GvIO(PL_statgv);
3284 goto really_filename;
3289 PL_laststatval = -1;
3290 sv_setpv(PL_statname, "");
3291 io = GvIO(PL_statgv);
3293 if (io && IoIFP(io)) {
3294 if (! PerlIO_has_base(IoIFP(io)))
3295 DIE(aTHX_ "-T and -B not implemented on filehandles");
3296 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3297 if (PL_laststatval < 0)
3299 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3300 if (PL_op->op_type == OP_FTTEXT)
3305 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3306 i = PerlIO_getc(IoIFP(io));
3308 (void)PerlIO_ungetc(IoIFP(io),i);
3310 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3312 len = PerlIO_get_bufsiz(IoIFP(io));
3313 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3314 /* sfio can have large buffers - limit to 512 */
3319 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3321 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3323 SETERRNO(EBADF,RMS$_IFI);
3331 PL_laststatval = -1;
3332 PL_laststype = OP_STAT;
3333 sv_setpv(PL_statname, SvPV(sv, n_a));
3334 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3335 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3336 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3339 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3340 if (PL_laststatval < 0) {
3341 (void)PerlIO_close(fp);
3344 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3345 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3346 (void)PerlIO_close(fp);
3348 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3349 RETPUSHNO; /* special case NFS directories */
3350 RETPUSHYES; /* null file is anything */
3355 /* now scan s to look for textiness */
3356 /* XXX ASCII dependent code */
3358 #if defined(DOSISH) || defined(USEMYBINMODE)
3359 /* ignore trailing ^Z on short files */
3360 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3364 for (i = 0; i < len; i++, s++) {
3365 if (!*s) { /* null never allowed in text */
3370 else if (!(isPRINT(*s) || isSPACE(*s)))
3373 else if (*s & 128) {
3375 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3378 /* utf8 characters don't count as odd */
3379 if (UTF8_IS_START(*s)) {
3380 int ulen = UTF8SKIP(s);
3381 if (ulen < len - i) {
3383 for (j = 1; j < ulen; j++) {
3384 if (!UTF8_IS_CONTINUATION(s[j]))
3387 --ulen; /* loop does extra increment */
3397 *s != '\n' && *s != '\r' && *s != '\b' &&
3398 *s != '\t' && *s != '\f' && *s != 27)
3403 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3428 if( !tmps || !*tmps ) {
3429 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3430 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3432 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3437 deprecate("chdir('') or chdir(undef) as chdir()");
3438 tmps = SvPV(*svp, n_a);
3442 TAINT_PROPER("chdir");
3447 TAINT_PROPER("chdir");
3448 PUSHi( PerlDir_chdir(tmps) >= 0 );
3450 /* Clear the DEFAULT element of ENV so we'll get the new value
3452 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3460 dSP; dMARK; dTARGET;
3461 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3467 DIE(aTHX_ PL_no_func, "chown");
3477 TAINT_PROPER("chroot");
3478 PUSHi( chroot(tmps) >= 0 );
3481 DIE(aTHX_ PL_no_func, "chroot");
3487 dSP; dMARK; dTARGET;
3489 value = (I32)apply(PL_op->op_type, MARK, SP);
3497 dSP; dMARK; dTARGET;
3499 value = (I32)apply(PL_op->op_type, MARK, SP);
3507 dSP; dMARK; dTARGET;
3509 value = (I32)apply(PL_op->op_type, MARK, SP);
3521 char *tmps2 = POPpx;
3522 char *tmps = SvPV(TOPs, n_a);
3523 TAINT_PROPER("rename");
3525 anum = PerlLIO_rename(tmps, tmps2);
3527 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3528 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3531 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3532 (void)UNLINK(tmps2);
3533 if (!(anum = link(tmps, tmps2)))
3534 anum = UNLINK(tmps);
3547 char *tmps2 = POPpx;
3548 char *tmps = SvPV(TOPs, n_a);
3549 TAINT_PROPER("link");
3550 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3553 DIE(aTHX_ PL_no_func, "link");
3562 char *tmps2 = POPpx;
3563 char *tmps = SvPV(TOPs, n_a);
3564 TAINT_PROPER("symlink");
3565 SETi( symlink(tmps, tmps2) >= 0 );
3568 DIE(aTHX_ PL_no_func, "symlink");
3578 char buf[MAXPATHLEN];
3582 #ifndef INCOMPLETE_TAINTS
3586 len = readlink(tmps, buf, sizeof(buf) - 1);
3594 RETSETUNDEF; /* just pretend it's a normal file */
3598 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3600 S_dooneliner(pTHX_ char *cmd, char *filename)
3602 char *save_filename = filename;
3608 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3609 strcpy(cmdline, cmd);
3610 strcat(cmdline, " ");
3611 for (s = cmdline + strlen(cmdline); *filename; ) {
3616 myfp = PerlProc_popen(cmdline, "r");
3620 SV *tmpsv = sv_newmortal();
3621 /* Need to save/restore 'PL_rs' ?? */
3622 s = sv_gets(tmpsv, myfp, 0);
3623 (void)PerlProc_pclose(myfp);
3627 #ifdef HAS_SYS_ERRLIST
3632 /* you don't see this */
3634 #ifdef HAS_SYS_ERRLIST
3642 if (instr(s, errmsg)) {
3649 #define EACCES EPERM
3651 if (instr(s, "cannot make"))
3652 SETERRNO(EEXIST,RMS$_FEX);
3653 else if (instr(s, "existing file"))
3654 SETERRNO(EEXIST,RMS$_FEX);
3655 else if (instr(s, "ile exists"))
3656 SETERRNO(EEXIST,RMS$_FEX);
3657 else if (instr(s, "non-exist"))
3658 SETERRNO(ENOENT,RMS$_FNF);
3659 else if (instr(s, "does not exist"))
3660 SETERRNO(ENOENT,RMS$_FNF);
3661 else if (instr(s, "not empty"))
3662 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3663 else if (instr(s, "cannot access"))
3664 SETERRNO(EACCES,RMS$_PRV);
3666 SETERRNO(EPERM,RMS$_PRV);
3669 else { /* some mkdirs return no failure indication */
3670 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3671 if (PL_op->op_type == OP_RMDIR)
3676 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3701 tmps = SvPV(TOPs, len);
3702 /* Different operating and file systems take differently to
3703 * trailing slashes. According to POSIX 1003.1 1996 Edition
3704 * any number of trailing slashes should be allowed.
3705 * Thusly we snip them away so that even non-conforming
3706 * systems are happy. */
3707 /* We should probably do this "filtering" for all
3708 * the functions that expect (potentially) directory names:
3709 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3710 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3711 if (len > 1 && tmps[len-1] == '/') {
3712 while (tmps[len] == '/' && len > 1)
3714 tmps = savepvn(tmps, len);
3718 TAINT_PROPER("mkdir");
3720 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3722 SETi( dooneliner("mkdir", tmps) );
3723 oldumask = PerlLIO_umask(0);
3724 PerlLIO_umask(oldumask);
3725 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3739 TAINT_PROPER("rmdir");
3741 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3743 XPUSHi( dooneliner("rmdir", tmps) );
3748 /* Directory calls. */
3752 #if defined(Direntry_t) && defined(HAS_READDIR)
3755 char *dirname = POPpx;
3757 register IO *io = GvIOn(gv);
3763 PerlDir_close(IoDIRP(io));
3764 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3770 SETERRNO(EBADF,RMS$_DIR);
3773 DIE(aTHX_ PL_no_dir_func, "opendir");
3779 #if defined(Direntry_t) && defined(HAS_READDIR)
3781 #if !defined(I_DIRENT) && !defined(VMS)
3782 Direntry_t *readdir (DIR *);
3784 register Direntry_t *dp;
3786 register IO *io = GvIOn(gv);
3789 if (!io || !IoDIRP(io))
3792 if (GIMME == G_ARRAY) {
3794 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3796 sv = newSVpvn(dp->d_name, dp->d_namlen);
3798 sv = newSVpv(dp->d_name, 0);
3800 #ifndef INCOMPLETE_TAINTS
3801 if (!(IoFLAGS(io) & IOf_UNTAINT))
3804 XPUSHs(sv_2mortal(sv));
3808 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3811 sv = newSVpvn(dp->d_name, dp->d_namlen);
3813 sv = newSVpv(dp->d_name, 0);
3815 #ifndef INCOMPLETE_TAINTS
3816 if (!(IoFLAGS(io) & IOf_UNTAINT))
3819 XPUSHs(sv_2mortal(sv));
3825 SETERRNO(EBADF,RMS$_ISI);
3826 if (GIMME == G_ARRAY)
3831 DIE(aTHX_ PL_no_dir_func, "readdir");
3837 #if defined(HAS_TELLDIR) || defined(telldir)
3839 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3840 /* XXX netbsd still seemed to.
3841 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3842 --JHI 1999-Feb-02 */
3843 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3844 long telldir (DIR *);
3847 register IO *io = GvIOn(gv);
3849 if (!io || !IoDIRP(io))
3852 PUSHi( PerlDir_tell(IoDIRP(io)) );
3856 SETERRNO(EBADF,RMS$_ISI);
3859 DIE(aTHX_ PL_no_dir_func, "telldir");
3865 #if defined(HAS_SEEKDIR) || defined(seekdir)
3869 register IO *io = GvIOn(gv);
3871 if (!io || !IoDIRP(io))
3874 (void)PerlDir_seek(IoDIRP(io), along);
3879 SETERRNO(EBADF,RMS$_ISI);
3882 DIE(aTHX_ PL_no_dir_func, "seekdir");
3888 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3891 register IO *io = GvIOn(gv);
3893 if (!io || !IoDIRP(io))
3896 (void)PerlDir_rewind(IoDIRP(io));
3900 SETERRNO(EBADF,RMS$_ISI);
3903 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3909 #if defined(Direntry_t) && defined(HAS_READDIR)
3912 register IO *io = GvIOn(gv);
3914 if (!io || !IoDIRP(io))
3917 #ifdef VOID_CLOSEDIR
3918 PerlDir_close(IoDIRP(io));
3920 if (PerlDir_close(IoDIRP(io)) < 0) {
3921 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3930 SETERRNO(EBADF,RMS$_IFI);
3933 DIE(aTHX_ PL_no_dir_func, "closedir");
3937 /* Process control. */
3947 PERL_FLUSHALL_FOR_CHILD;
3948 childpid = PerlProc_fork();
3953 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3954 SvREADONLY_off(GvSV(tmpgv));
3955 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3956 SvREADONLY_on(GvSV(tmpgv));
3958 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3963 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3968 PERL_FLUSHALL_FOR_CHILD;
3969 childpid = PerlProc_fork();
3975 DIE(aTHX_ PL_no_func, "fork");
3982 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3987 #ifdef PERL_OLD_SIGNALS
3988 childpid = wait4pid(-1, &argflags, 0);
3990 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
3994 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3995 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3996 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3998 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4003 DIE(aTHX_ PL_no_func, "wait");
4009 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4017 #ifdef PERL_OLD_SIGNALS
4018 childpid = wait4pid(childpid, &argflags, optype);
4020 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
4024 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4025 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4026 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4028 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4033 DIE(aTHX_ PL_no_func, "waitpid");
4039 dSP; dMARK; dORIGMARK; dTARGET;
4047 while (++MARK <= SP) {
4048 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4053 /* XXX Remove warning at end of deprecation cycle --RD 2002-02 */
4054 if (SP - MARK == 1) {
4055 TAINT_PROPER("system");
4057 else if (ckWARN2(WARN_TAINT, WARN_DEPRECATED)) {
4058 Perl_warner(aTHX_ packWARN2(WARN_TAINT, WARN_DEPRECATED),
4059 "Use of tainted arguments in %s is deprecated", "system");
4062 PERL_FLUSHALL_FOR_CHILD;
4063 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4068 if (PerlProc_pipe(pp) >= 0)
4070 while ((childpid = PerlProc_fork()) == -1) {
4071 if (errno != EAGAIN) {
4076 PerlLIO_close(pp[0]);
4077 PerlLIO_close(pp[1]);
4084 Sigsave_t ihand,qhand; /* place to save signals during system() */
4088 PerlLIO_close(pp[1]);
4090 rsignal_save(SIGINT, SIG_IGN, &ihand);
4091 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4094 result = wait4pid(childpid, &status, 0);
4095 } while (result == -1 && errno == EINTR);
4097 (void)rsignal_restore(SIGINT, &ihand);
4098 (void)rsignal_restore(SIGQUIT, &qhand);
4100 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4101 do_execfree(); /* free any memory child malloced on fork */
4107 while (n < sizeof(int)) {
4108 n1 = PerlLIO_read(pp[0],
4109 (void*)(((char*)&errkid)+n),
4115 PerlLIO_close(pp[0]);
4116 if (n) { /* Error */
4117 if (n != sizeof(int))
4118 DIE(aTHX_ "panic: kid popen errno read");
4119 errno = errkid; /* Propagate errno from kid */
4120 STATUS_CURRENT = -1;
4123 PUSHi(STATUS_CURRENT);
4127 PerlLIO_close(pp[0]);
4128 #if defined(HAS_FCNTL) && defined(F_SETFD)
4129 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4132 if (PL_op->op_flags & OPf_STACKED) {
4133 SV *really = *++MARK;
4134 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4136 else if (SP - MARK != 1)
4137 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4139 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4143 #else /* ! FORK or VMS or OS/2 */
4146 if (PL_op->op_flags & OPf_STACKED) {
4147 SV *really = *++MARK;
4148 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4150 else if (SP - MARK != 1)
4151 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4153 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4155 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4157 STATUS_NATIVE_SET(value);
4160 PUSHi(result ? value : STATUS_CURRENT);
4161 #endif /* !FORK or VMS */
4167 dSP; dMARK; dORIGMARK; dTARGET;
4173 while (++MARK <= SP) {
4174 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4179 /* XXX Remove warning at end of deprecation cycle --RD 2002-02 */
4180 if (SP - MARK == 1) {
4181 TAINT_PROPER("exec");
4183 else if (ckWARN2(WARN_TAINT, WARN_DEPRECATED)) {
4184 Perl_warner(aTHX_ packWARN2(WARN_TAINT, WARN_DEPRECATED),
4185 "Use of tainted arguments in %s is deprecated", "exec");
4188 PERL_FLUSHALL_FOR_CHILD;
4189 if (PL_op->op_flags & OPf_STACKED) {
4190 SV *really = *++MARK;
4191 value = (I32)do_aexec(really, MARK, SP);
4193 else if (SP - MARK != 1)
4195 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4199 (void ) do_aspawn(Nullsv, MARK, SP);
4203 value = (I32)do_aexec(Nullsv, MARK, SP);
4208 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4211 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4214 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4227 dSP; dMARK; dTARGET;
4229 value = (I32)apply(PL_op->op_type, MARK, SP);
4234 DIE(aTHX_ PL_no_func, "kill");
4242 XPUSHi( getppid() );
4245 DIE(aTHX_ PL_no_func, "getppid");
4261 pgrp = (I32)BSD_GETPGRP(pid);
4263 if (pid != 0 && pid != PerlProc_getpid())
4264 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4270 DIE(aTHX_ PL_no_func, "getpgrp()");
4289 TAINT_PROPER("setpgrp");
4291 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4293 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4294 || (pid != 0 && pid != PerlProc_getpid()))
4296 DIE(aTHX_ "setpgrp can't take arguments");
4298 SETi( setpgrp() >= 0 );
4299 #endif /* USE_BSDPGRP */
4302 DIE(aTHX_ PL_no_func, "setpgrp()");
4308 #ifdef HAS_GETPRIORITY
4312 SETi( getpriority(which, who) );
4315 DIE(aTHX_ PL_no_func, "getpriority()");
4321 #ifdef HAS_SETPRIORITY
4326 TAINT_PROPER("setpriority");
4327 SETi( setpriority(which, who, niceval) >= 0 );
4330 DIE(aTHX_ PL_no_func, "setpriority()");
4340 XPUSHn( time(Null(Time_t*)) );
4342 XPUSHi( time(Null(Time_t*)) );
4347 /* XXX The POSIX name is CLK_TCK; it is to be preferred
4348 to HZ. Probably. For now, assume that if the system
4349 defines HZ, it does so correctly. (Will this break
4351 Probably we ought to use _sysconf(_SC_CLK_TCK), if
4352 it's supported. --AD 9/96.
4373 (void)PerlProc_times(&PL_timesbuf);
4375 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4376 /* struct tms, though same data */
4380 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/HZ)));
4381 if (GIMME == G_ARRAY) {
4382 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/HZ)));
4383 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/HZ)));
4384 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/HZ)));
4388 DIE(aTHX_ "times not implemented");
4389 #endif /* HAS_TIMES */
4402 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4403 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4404 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4410 when = (Time_t)SvNVx(POPs);
4412 when = (Time_t)SvIVx(POPs);
4415 if (PL_op->op_type == OP_LOCALTIME)
4416 tmbuf = localtime(&when);
4418 tmbuf = gmtime(&when);
4420 if (GIMME != G_ARRAY) {
4426 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4427 dayname[tmbuf->tm_wday],
4428 monname[tmbuf->tm_mon],
4433 tmbuf->tm_year + 1900);
4434 PUSHs(sv_2mortal(tsv));
4439 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4440 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4441 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4442 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4443 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4444 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4445 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4446 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4447 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4458 anum = alarm((unsigned int)anum);
4465 DIE(aTHX_ PL_no_func, "alarm");
4476 (void)time(&lasttime);
4481 PerlProc_sleep((unsigned int)duration);
4484 XPUSHi(when - lasttime);
4488 /* Shared memory. */
4502 return pp_shmwrite();
4507 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4508 dSP; dMARK; dTARGET;
4509 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4518 /* Message passing. */
4532 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4533 dSP; dMARK; dTARGET;
4534 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4545 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4546 dSP; dMARK; dTARGET;
4547 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4560 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4561 dSP; dMARK; dTARGET;
4562 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4569 DIE(aTHX_ "System V IPC is not implemented on this machine");
4575 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4576 dSP; dMARK; dTARGET;
4577 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4585 PUSHp(zero_but_true, ZBTLEN);
4595 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4596 dSP; dMARK; dTARGET;
4597 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4606 /* Get system info. */
4610 #ifdef HAS_GETHOSTBYNAME
4611 return pp_ghostent();
4613 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4619 #ifdef HAS_GETHOSTBYADDR
4620 return pp_ghostent();
4622 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4628 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4630 I32 which = PL_op->op_type;
4631 register char **elem;
4633 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4634 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4635 struct hostent *gethostbyname(Netdb_name_t);
4636 struct hostent *gethostent(void);
4638 struct hostent *hent;
4643 if (which == OP_GHBYNAME) {
4644 #ifdef HAS_GETHOSTBYNAME
4645 char* name = POPpbytex;
4646 hent = PerlSock_gethostbyname(name);
4648 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4651 else if (which == OP_GHBYADDR) {
4652 #ifdef HAS_GETHOSTBYADDR
4653 int addrtype = POPi;
4656 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4658 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4660 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4664 #ifdef HAS_GETHOSTENT
4665 hent = PerlSock_gethostent();
4667 DIE(aTHX_ PL_no_sock_func, "gethostent");
4670 #ifdef HOST_NOT_FOUND
4672 #ifdef USE_REENTRANT_API
4673 # ifdef USE_GETHOSTENT_ERRNO
4674 h_errno = PL_reentrant_buffer->_gethostent_errno;
4677 STATUS_NATIVE_SET(h_errno);
4681 if (GIMME != G_ARRAY) {
4682 PUSHs(sv = sv_newmortal());
4684 if (which == OP_GHBYNAME) {
4686 sv_setpvn(sv, hent->h_addr, hent->h_length);
4689 sv_setpv(sv, (char*)hent->h_name);
4695 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4696 sv_setpv(sv, (char*)hent->h_name);
4697 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4698 for (elem = hent->h_aliases; elem && *elem; elem++) {
4699 sv_catpv(sv, *elem);
4701 sv_catpvn(sv, " ", 1);
4703 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4704 sv_setiv(sv, (IV)hent->h_addrtype);
4705 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4706 len = hent->h_length;
4707 sv_setiv(sv, (IV)len);
4709 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4710 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4711 sv_setpvn(sv, *elem, len);
4714 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4716 sv_setpvn(sv, hent->h_addr, len);
4721 DIE(aTHX_ PL_no_sock_func, "gethostent");
4727 #ifdef HAS_GETNETBYNAME
4728 return pp_gnetent();
4730 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4736 #ifdef HAS_GETNETBYADDR
4737 return pp_gnetent();
4739 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4745 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4747 I32 which = PL_op->op_type;
4748 register char **elem;
4750 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4751 struct netent *getnetbyaddr(Netdb_net_t, int);
4752 struct netent *getnetbyname(Netdb_name_t);
4753 struct netent *getnetent(void);
4755 struct netent *nent;
4758 if (which == OP_GNBYNAME){
4759 #ifdef HAS_GETNETBYNAME
4760 char *name = POPpbytex;
4761 nent = PerlSock_getnetbyname(name);
4763 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4766 else if (which == OP_GNBYADDR) {
4767 #ifdef HAS_GETNETBYADDR
4768 int addrtype = POPi;
4769 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4770 nent = PerlSock_getnetbyaddr(addr, addrtype);
4772 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4776 #ifdef HAS_GETNETENT
4777 nent = PerlSock_getnetent();
4779 DIE(aTHX_ PL_no_sock_func, "getnetent");
4782 #ifdef HOST_NOT_FOUND
4784 #ifdef USE_REENTRANT_API
4785 # ifdef USE_GETNETENT_ERRNO
4786 h_errno = PL_reentrant_buffer->_getnetent_errno;
4789 STATUS_NATIVE_SET(h_errno);
4794 if (GIMME != G_ARRAY) {
4795 PUSHs(sv = sv_newmortal());
4797 if (which == OP_GNBYNAME)
4798 sv_setiv(sv, (IV)nent->n_net);
4800 sv_setpv(sv, nent->n_name);
4806 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4807 sv_setpv(sv, nent->n_name);
4808 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4809 for (elem = nent->n_aliases; elem && *elem; elem++) {
4810 sv_catpv(sv, *elem);
4812 sv_catpvn(sv, " ", 1);
4814 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4815 sv_setiv(sv, (IV)nent->n_addrtype);
4816 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4817 sv_setiv(sv, (IV)nent->n_net);
4822 DIE(aTHX_ PL_no_sock_func, "getnetent");
4828 #ifdef HAS_GETPROTOBYNAME
4829 return pp_gprotoent();
4831 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4837 #ifdef HAS_GETPROTOBYNUMBER
4838 return pp_gprotoent();
4840 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4846 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4848 I32 which = PL_op->op_type;
4849 register char **elem;
4851 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4852 struct protoent *getprotobyname(Netdb_name_t);
4853 struct protoent *getprotobynumber(int);
4854 struct protoent *getprotoent(void);
4856 struct protoent *pent;
4859 if (which == OP_GPBYNAME) {
4860 #ifdef HAS_GETPROTOBYNAME
4861 char* name = POPpbytex;
4862 pent = PerlSock_getprotobyname(name);
4864 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4867 else if (which == OP_GPBYNUMBER) {
4868 #ifdef HAS_GETPROTOBYNUMBER
4870 pent = PerlSock_getprotobynumber(number);
4872 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4876 #ifdef HAS_GETPROTOENT
4877 pent = PerlSock_getprotoent();
4879 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4883 if (GIMME != G_ARRAY) {
4884 PUSHs(sv = sv_newmortal());
4886 if (which == OP_GPBYNAME)
4887 sv_setiv(sv, (IV)pent->p_proto);
4889 sv_setpv(sv, pent->p_name);
4895 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4896 sv_setpv(sv, pent->p_name);
4897 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4898 for (elem = pent->p_aliases; elem && *elem; elem++) {
4899 sv_catpv(sv, *elem);
4901 sv_catpvn(sv, " ", 1);
4903 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4904 sv_setiv(sv, (IV)pent->p_proto);
4909 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4915 #ifdef HAS_GETSERVBYNAME
4916 return pp_gservent();
4918 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4924 #ifdef HAS_GETSERVBYPORT
4925 return pp_gservent();
4927 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4933 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4935 I32 which = PL_op->op_type;
4936 register char **elem;
4938 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4939 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4940 struct servent *getservbyport(int, Netdb_name_t);
4941 struct servent *getservent(void);
4943 struct servent *sent;
4946 if (which == OP_GSBYNAME) {
4947 #ifdef HAS_GETSERVBYNAME
4948 char *proto = POPpbytex;
4949 char *name = POPpbytex;
4951 if (proto && !*proto)
4954 sent = PerlSock_getservbyname(name, proto);
4956 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4959 else if (which == OP_GSBYPORT) {
4960 #ifdef HAS_GETSERVBYPORT
4961 char *proto = POPpbytex;
4962 unsigned short port = (unsigned short)POPu;
4965 port = PerlSock_htons(port);
4967 sent = PerlSock_getservbyport(port, proto);
4969 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4973 #ifdef HAS_GETSERVENT
4974 sent = PerlSock_getservent();
4976 DIE(aTHX_ PL_no_sock_func, "getservent");
4980 if (GIMME != G_ARRAY) {
4981 PUSHs(sv = sv_newmortal());
4983 if (which == OP_GSBYNAME) {
4985 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4987 sv_setiv(sv, (IV)(sent->s_port));
4991 sv_setpv(sv, sent->s_name);
4997 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4998 sv_setpv(sv, sent->s_name);
4999 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5000 for (elem = sent->s_aliases; elem && *elem; elem++) {
5001 sv_catpv(sv, *elem);
5003 sv_catpvn(sv, " ", 1);
5005 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5007 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5009 sv_setiv(sv, (IV)(sent->s_port));
5011 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5012 sv_setpv(sv, sent->s_proto);
5017 DIE(aTHX_ PL_no_sock_func, "getservent");
5023 #ifdef HAS_SETHOSTENT
5025 PerlSock_sethostent(TOPi);
5028 DIE(aTHX_ PL_no_sock_func, "sethostent");
5034 #ifdef HAS_SETNETENT
5036 PerlSock_setnetent(TOPi);
5039 DIE(aTHX_ PL_no_sock_func, "setnetent");
5045 #ifdef HAS_SETPROTOENT
5047 PerlSock_setprotoent(TOPi);
5050 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5056 #ifdef HAS_SETSERVENT
5058 PerlSock_setservent(TOPi);
5061 DIE(aTHX_ PL_no_sock_func, "setservent");
5067 #ifdef HAS_ENDHOSTENT
5069 PerlSock_endhostent();
5073 DIE(aTHX_ PL_no_sock_func, "endhostent");
5079 #ifdef HAS_ENDNETENT
5081 PerlSock_endnetent();
5085 DIE(aTHX_ PL_no_sock_func, "endnetent");
5091 #ifdef HAS_ENDPROTOENT
5093 PerlSock_endprotoent();
5097 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5103 #ifdef HAS_ENDSERVENT
5105 PerlSock_endservent();
5109 DIE(aTHX_ PL_no_sock_func, "endservent");
5118 DIE(aTHX_ PL_no_func, "getpwnam");
5127 DIE(aTHX_ PL_no_func, "getpwuid");
5135 I32 which = PL_op->op_type;
5138 struct passwd *pwent = NULL;
5140 * We currently support only the SysV getsp* shadow password interface.
5141 * The interface is declared in <shadow.h> and often one needs to link
5142 * with -lsecurity or some such.
5143 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5146 * AIX getpwnam() is clever enough to return the encrypted password
5147 * only if the caller (euid?) is root.
5149 * There are at least two other shadow password APIs. Many platforms
5150 * seem to contain more than one interface for accessing the shadow
5151 * password databases, possibly for compatibility reasons.
5152 * The getsp*() is by far he simplest one, the other two interfaces
5153 * are much more complicated, but also very similar to each other.
5158 * struct pr_passwd *getprpw*();
5159 * The password is in
5160 * char getprpw*(...).ufld.fd_encrypt[]
5161 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5166 * struct es_passwd *getespw*();
5167 * The password is in
5168 * char *(getespw*(...).ufld.fd_encrypt)
5169 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5171 * Mention I_PROT here so that Configure probes for it.
5173 * In HP-UX for getprpw*() the manual page claims that one should include
5174 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5175 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5176 * and pp_sys.c already includes <shadow.h> if there is such.
5178 * Note that <sys/security.h> is already probed for, but currently
5179 * it is only included in special cases.
5181 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5182 * be preferred interface, even though also the getprpw*() interface
5183 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5184 * One also needs to call set_auth_parameters() in main() before
5185 * doing anything else, whether one is using getespw*() or getprpw*().
5187 * Note that accessing the shadow databases can be magnitudes
5188 * slower than accessing the standard databases.
5196 char* name = POPpbytex;
5197 pwent = getpwnam(name);
5203 pwent = getpwuid(uid);
5207 # ifdef HAS_GETPWENT
5210 DIE(aTHX_ PL_no_func, "getpwent");
5216 if (GIMME != G_ARRAY) {
5217 PUSHs(sv = sv_newmortal());
5219 if (which == OP_GPWNAM)
5220 # if Uid_t_sign <= 0
5221 sv_setiv(sv, (IV)pwent->pw_uid);
5223 sv_setuv(sv, (UV)pwent->pw_uid);
5226 sv_setpv(sv, pwent->pw_name);
5232 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5233 sv_setpv(sv, pwent->pw_name);
5235 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5237 /* If we have getspnam(), we try to dig up the shadow
5238 * password. If we are underprivileged, the shadow
5239 * interface will set the errno to EACCES or similar,
5240 * and return a null pointer. If this happens, we will
5241 * use the dummy password (usually "*" or "x") from the
5242 * standard password database.
5244 * In theory we could skip the shadow call completely
5245 * if euid != 0 but in practice we cannot know which
5246 * security measures are guarding the shadow databases
5247 * on a random platform.
5249 * Resist the urge to use additional shadow interfaces.
5250 * Divert the urge to writing an extension instead.
5253 # ifdef HAS_GETSPNAM
5255 struct spwd *spwent;
5256 int saverrno; /* Save and restore errno so that
5257 * underprivileged attempts seem
5258 * to have never made the unsccessful
5259 * attempt to retrieve the shadow password. */
5262 spwent = getspnam(pwent->pw_name);
5264 if (spwent && spwent->sp_pwdp)
5265 sv_setpv(sv, spwent->sp_pwdp);
5269 if (!SvPOK(sv)) /* Use the standard password, then. */
5270 sv_setpv(sv, pwent->pw_passwd);
5273 # ifndef INCOMPLETE_TAINTS
5274 /* passwd is tainted because user himself can diddle with it.
5275 * admittedly not much and in a very limited way, but nevertheless. */
5279 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5280 # if Uid_t_sign <= 0
5281 sv_setiv(sv, (IV)pwent->pw_uid);
5283 sv_setuv(sv, (UV)pwent->pw_uid);
5286 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5287 # if Uid_t_sign <= 0
5288 sv_setiv(sv, (IV)pwent->pw_gid);
5290 sv_setuv(sv, (UV)pwent->pw_gid);
5292 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5293 * because of the poor interface of the Perl getpw*(),
5294 * not because there's some standard/convention saying so.
5295 * A better interface would have been to return a hash,
5296 * but we are accursed by our history, alas. --jhi. */
5297 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5299 sv_setiv(sv, (IV)pwent->pw_change);
5302 sv_setiv(sv, (IV)pwent->pw_quota);
5305 sv_setpv(sv, pwent->pw_age);
5310 /* pw_class and pw_comment are mutually exclusive--.
5311 * see the above note for pw_change, pw_quota, and pw_age. */
5312 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5314 sv_setpv(sv, pwent->pw_class);
5317 sv_setpv(sv, pwent->pw_comment);
5321 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5323 sv_setpv(sv, pwent->pw_gecos);
5325 # ifndef INCOMPLETE_TAINTS
5326 /* pw_gecos is tainted because user himself can diddle with it. */
5330 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5331 sv_setpv(sv, pwent->pw_dir);
5333 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5334 sv_setpv(sv, pwent->pw_shell);
5335 # ifndef INCOMPLETE_TAINTS
5336 /* pw_shell is tainted because user himself can diddle with it. */
5341 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5342 sv_setiv(sv, (IV)pwent->pw_expire);
5347 DIE(aTHX_ PL_no_func, "getpwent");
5353 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5358 DIE(aTHX_ PL_no_func, "setpwent");
5364 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5369 DIE(aTHX_ PL_no_func, "endpwent");
5378 DIE(aTHX_ PL_no_func, "getgrnam");
5387 DIE(aTHX_ PL_no_func, "getgrgid");
5395 I32 which = PL_op->op_type;
5396 register char **elem;
5398 struct group *grent;
5401 if (which == OP_GGRNAM) {
5402 char* name = POPpbytex;
5403 grent = (struct group *)getgrnam(name);
5405 else if (which == OP_GGRGID) {
5407 grent = (struct group *)getgrgid(gid);
5411 grent = (struct group *)getgrent();
5413 DIE(aTHX_ PL_no_func, "getgrent");
5417 if (GIMME != G_ARRAY) {
5418 PUSHs(sv = sv_newmortal());
5420 if (which == OP_GGRNAM)
5421 sv_setiv(sv, (IV)grent->gr_gid);
5423 sv_setpv(sv, grent->gr_name);
5429 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5430 sv_setpv(sv, grent->gr_name);
5432 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5434 sv_setpv(sv, grent->gr_passwd);
5437 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5438 sv_setiv(sv, (IV)grent->gr_gid);
5440 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5441 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5442 /* In UNICOS/mk (_CRAYMPP) the multithreading
5443 * versions (getgrnam_r, getgrgid_r)
5444 * seem to return an illegal pointer
5445 * as the group members list, gr_mem.
5446 * getgrent() doesn't even have a _r version
5447 * but the gr_mem is poisonous anyway.
5448 * So yes, you cannot get the list of group
5449 * members if building multithreaded in UNICOS/mk. */
5450 for (elem = grent->gr_mem; elem && *elem; elem++) {
5451 sv_catpv(sv, *elem);
5453 sv_catpvn(sv, " ", 1);
5460 DIE(aTHX_ PL_no_func, "getgrent");
5466 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5471 DIE(aTHX_ PL_no_func, "setgrent");
5477 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5482 DIE(aTHX_ PL_no_func, "endgrent");
5492 if (!(tmps = PerlProc_getlogin()))
5494 PUSHp(tmps, strlen(tmps));
5497 DIE(aTHX_ PL_no_func, "getlogin");
5501 /* Miscellaneous. */
5506 dSP; dMARK; dORIGMARK; dTARGET;
5507 register I32 items = SP - MARK;
5508 unsigned long a[20];
5514 while (++MARK <= SP) {
5515 if (SvTAINTED(*MARK)) {
5521 TAINT_PROPER("syscall");
5524 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5525 * or where sizeof(long) != sizeof(char*). But such machines will
5526 * not likely have syscall implemented either, so who cares?
5528 while (++MARK <= SP) {
5529 if (SvNIOK(*MARK) || !i)
5530 a[i++] = SvIV(*MARK);
5531 else if (*MARK == &PL_sv_undef)
5534 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5540 DIE(aTHX_ "Too many args to syscall");
5542 DIE(aTHX_ "Too few args to syscall");
5544 retval = syscall(a[0]);
5547 retval = syscall(a[0],a[1]);
5550 retval = syscall(a[0],a[1],a[2]);
5553 retval = syscall(a[0],a[1],a[2],a[3]);
5556 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5559 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5562 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5565 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5569 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5572 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5575 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5579 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5583 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5587 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5588 a[10],a[11],a[12],a[13]);
5590 #endif /* atarist */
5596 DIE(aTHX_ PL_no_func, "syscall");
5600 #ifdef FCNTL_EMULATE_FLOCK
5602 /* XXX Emulate flock() with fcntl().
5603 What's really needed is a good file locking module.
5607 fcntl_emulate_flock(int fd, int operation)
5611 switch (operation & ~LOCK_NB) {
5613 flock.l_type = F_RDLCK;
5616 flock.l_type = F_WRLCK;
5619 flock.l_type = F_UNLCK;
5625 flock.l_whence = SEEK_SET;
5626 flock.l_start = flock.l_len = (Off_t)0;
5628 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5631 #endif /* FCNTL_EMULATE_FLOCK */
5633 #ifdef LOCKF_EMULATE_FLOCK
5635 /* XXX Emulate flock() with lockf(). This is just to increase
5636 portability of scripts. The calls are not completely
5637 interchangeable. What's really needed is a good file
5641 /* The lockf() constants might have been defined in <unistd.h>.
5642 Unfortunately, <unistd.h> causes troubles on some mixed
5643 (BSD/POSIX) systems, such as SunOS 4.1.3.
5645 Further, the lockf() constants aren't POSIX, so they might not be
5646 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5647 just stick in the SVID values and be done with it. Sigh.
5651 # define F_ULOCK 0 /* Unlock a previously locked region */
5654 # define F_LOCK 1 /* Lock a region for exclusive use */
5657 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5660 # define F_TEST 3 /* Test a region for other processes locks */
5664 lockf_emulate_flock(int fd, int operation)
5670 /* flock locks entire file so for lockf we need to do the same */
5672 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5673 if (pos > 0) /* is seekable and needs to be repositioned */
5674 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5675 pos = -1; /* seek failed, so don't seek back afterwards */
5678 switch (operation) {
5680 /* LOCK_SH - get a shared lock */
5682 /* LOCK_EX - get an exclusive lock */
5684 i = lockf (fd, F_LOCK, 0);
5687 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5688 case LOCK_SH|LOCK_NB:
5689 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5690 case LOCK_EX|LOCK_NB:
5691 i = lockf (fd, F_TLOCK, 0);
5693 if ((errno == EAGAIN) || (errno == EACCES))
5694 errno = EWOULDBLOCK;
5697 /* LOCK_UN - unlock (non-blocking is a no-op) */
5699 case LOCK_UN|LOCK_NB:
5700 i = lockf (fd, F_ULOCK, 0);
5703 /* Default - can't decipher operation */
5710 if (pos > 0) /* need to restore position of the handle */
5711 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5716 #endif /* LOCKF_EMULATE_FLOCK */