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 */
178 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
179 #undef PERL_EFF_ACCESS_W_OK
180 #undef PERL_EFF_ACCESS_X_OK
182 /* F_OK unused: if stat() cannot find it... */
184 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
185 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
186 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
187 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
188 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
191 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
192 # ifdef I_SYS_SECURITY
193 # include <sys/security.h>
197 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
198 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
199 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
202 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
203 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
204 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
208 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
210 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
211 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
212 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
215 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
216 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
217 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
220 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
222 Uid_t ruid = getuid();
223 Uid_t euid = geteuid();
224 Gid_t rgid = getgid();
225 Gid_t egid = getegid();
229 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
230 Perl_croak(aTHX_ "switching effective uid is not implemented");
233 if (setreuid(euid, ruid))
236 if (setresuid(euid, ruid, (Uid_t)-1))
239 Perl_croak(aTHX_ "entering effective uid failed");
242 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
243 Perl_croak(aTHX_ "switching effective gid is not implemented");
246 if (setregid(egid, rgid))
249 if (setresgid(egid, rgid, (Gid_t)-1))
252 Perl_croak(aTHX_ "entering effective gid failed");
255 res = access(path, mode);
258 if (setreuid(ruid, euid))
261 if (setresuid(ruid, euid, (Uid_t)-1))
264 Perl_croak(aTHX_ "leaving effective uid failed");
267 if (setregid(rgid, egid))
270 if (setresgid(rgid, egid, (Gid_t)-1))
273 Perl_croak(aTHX_ "leaving effective gid failed");
278 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
279 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
280 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
283 #if !defined(PERL_EFF_ACCESS_R_OK)
284 /* With it or without it: anyway you get a warning: either that
285 it is unused, or it is declared static and never defined.
288 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
290 Perl_croak(aTHX_ "switching effective uid is not implemented");
306 if (PL_op->op_private & OPpOPEN_IN_RAW)
308 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
310 fp = PerlProc_popen(tmps, mode);
313 if (PL_curcop->cop_io) {
314 type = SvPV_nolen(PL_curcop->cop_io);
317 PerlIO_apply_layers(aTHX_ fp,mode,type);
319 if (gimme == G_VOID) {
321 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
325 else if (gimme == G_SCALAR) {
327 PL_rs = &PL_sv_undef;
328 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
329 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
341 if (sv_gets(sv, fp, 0) == Nullch) {
345 XPUSHs(sv_2mortal(sv));
346 if (SvLEN(sv) - SvCUR(sv) > 20) {
347 SvLEN_set(sv, SvCUR(sv)+1);
348 Renew(SvPVX(sv), SvLEN(sv), char);
353 STATUS_NATIVE_SET(PerlProc_pclose(fp));
354 TAINT; /* "I believe that this is not gratuitous!" */
357 STATUS_NATIVE_SET(-1);
358 if (gimme == G_SCALAR)
368 tryAMAGICunTARGET(iter, -1);
370 /* Note that we only ever get here if File::Glob fails to load
371 * without at the same time croaking, for some reason, or if
372 * perl was built with PERL_EXTERNAL_GLOB */
379 * The external globbing program may use things we can't control,
380 * so for security reasons we must assume the worst.
383 taint_proper(PL_no_security, "glob");
387 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
388 PL_last_in_gv = (GV*)*PL_stack_sp--;
390 SAVESPTR(PL_rs); /* This is not permanent, either. */
391 PL_rs = sv_2mortal(newSVpvn("\000", 1));
394 *SvPVX(PL_rs) = '\n';
398 result = do_readline();
405 PL_last_in_gv = cGVOP_gv;
406 return do_readline();
415 if (SP - MARK != 1) {
417 do_join(TARG, &PL_sv_no, MARK, SP);
424 tmps = SvPV(tmpsv, len);
427 (void)SvUPGRADE(error, SVt_PV);
428 if (SvPOK(error) && SvCUR(error))
429 sv_catpv(error, "\t...caught");
431 tmps = SvPV(tmpsv, len);
434 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
436 Perl_warn(aTHX_ "%"SVf, tmpsv);
448 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
450 if (SP - MARK != 1) {
452 do_join(TARG, &PL_sv_no, MARK, SP);
454 tmps = SvPV(tmpsv, len);
460 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
464 (void)SvUPGRADE(error, SVt_PV);
465 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
467 SvSetSV(error,tmpsv);
468 else if (sv_isobject(error)) {
469 HV *stash = SvSTASH(SvRV(error));
470 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
472 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
473 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
480 call_sv((SV*)GvCV(gv),
481 G_SCALAR|G_EVAL|G_KEEPERR);
482 sv_setsv(error,*PL_stack_sp--);
485 DIE(aTHX_ Nullformat);
488 if (SvPOK(error) && SvCUR(error))
489 sv_catpv(error, "\t...propagated");
491 tmps = SvPV(tmpsv, len);
495 tmpsv = sv_2mortal(newSVpvn("Died", 4));
497 DIE(aTHX_ "%"SVf, tmpsv);
517 DIE(aTHX_ PL_no_usym, "filehandle");
518 if ((io = GvIOp(gv)))
519 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
521 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
522 /* Method's args are same as ours ... */
523 /* ... except handle is replaced by the object */
524 *MARK-- = SvTIED_obj((SV*)io, mg);
528 call_method("OPEN", G_SCALAR);
541 tmps = SvPV(sv, len);
542 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
545 PUSHi( (I32)PL_forkprocess );
546 else if (PL_forkprocess == 0) /* we are a new child */
565 if (gv && (io = GvIO(gv))
566 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
569 XPUSHs(SvTIED_obj((SV*)io, mg));
572 call_method("CLOSE", G_SCALAR);
578 PUSHs(boolSV(do_close(gv, TRUE)));
598 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
599 DIE(aTHX_ PL_no_usym, "filehandle");
604 do_close(rgv, FALSE);
606 do_close(wgv, FALSE);
608 if (PerlProc_pipe(fd) < 0)
611 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPESOCK_MODE);
612 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPESOCK_MODE);
613 IoOFP(rstio) = IoIFP(rstio);
614 IoIFP(wstio) = IoOFP(wstio);
615 IoTYPE(rstio) = IoTYPE_RDONLY;
616 IoTYPE(wstio) = IoTYPE_WRONLY;
618 if (!IoIFP(rstio) || !IoOFP(wstio)) {
619 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
620 else PerlLIO_close(fd[0]);
621 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
622 else PerlLIO_close(fd[1]);
625 #if defined(HAS_FCNTL) && defined(F_SETFD)
626 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
627 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
634 DIE(aTHX_ PL_no_func, "pipe");
650 if (gv && (io = GvIO(gv))
651 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
654 XPUSHs(SvTIED_obj((SV*)io, mg));
657 call_method("FILENO", G_SCALAR);
663 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
664 /* Can't do this because people seem to do things like
665 defined(fileno($foo)) to check whether $foo is a valid fh.
666 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
667 report_evil_fh(gv, io, PL_op->op_type);
672 PUSHi(PerlIO_fileno(fp));
683 anum = PerlLIO_umask(0);
684 (void)PerlLIO_umask(anum);
687 anum = PerlLIO_umask(POPi);
688 TAINT_PROPER("umask");
691 /* Only DIE if trying to restrict permissions on `user' (self).
692 * Otherwise it's harmless and more useful to just return undef
693 * since 'group' and 'other' concepts probably don't exist here. */
694 if (MAXARG >= 1 && (POPi & 0700))
695 DIE(aTHX_ "umask not implemented");
696 XPUSHs(&PL_sv_undef);
718 if (gv && (io = GvIO(gv))
719 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
722 XPUSHs(SvTIED_obj((SV*)io, mg));
727 call_method("BINMODE", G_SCALAR);
734 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
735 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
736 report_evil_fh(gv, io, PL_op->op_type);
737 SETERRNO(EBADF,RMS_IFI);
742 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
743 (discp) ? SvPV_nolen(discp) : Nullch)) {
761 I32 markoff = MARK - PL_stack_base;
763 int how = PERL_MAGIC_tied;
767 switch(SvTYPE(varsv)) {
769 methname = "TIEHASH";
770 HvEITER((HV *)varsv) = Null(HE *);
773 methname = "TIEARRAY";
776 #ifdef GV_UNIQUE_CHECK
777 if (GvUNIQUE((GV*)varsv)) {
778 Perl_croak(aTHX_ "Attempt to tie unique GV");
781 methname = "TIEHANDLE";
782 how = PERL_MAGIC_tiedscalar;
783 /* For tied filehandles, we apply tiedscalar magic to the IO
784 slot of the GP rather than the GV itself. AMS 20010812 */
786 GvIOp(varsv) = newIO();
787 varsv = (SV *)GvIOp(varsv);
790 methname = "TIESCALAR";
791 how = PERL_MAGIC_tiedscalar;
795 if (sv_isobject(*MARK)) {
797 PUSHSTACKi(PERLSI_MAGIC);
799 EXTEND(SP,(I32)items);
803 call_method(methname, G_SCALAR);
806 /* Not clear why we don't call call_method here too.
807 * perhaps to get different error message ?
809 stash = gv_stashsv(*MARK, FALSE);
810 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
811 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
815 PUSHSTACKi(PERLSI_MAGIC);
817 EXTEND(SP,(I32)items);
821 call_sv((SV*)GvCV(gv), G_SCALAR);
827 if (sv_isobject(sv)) {
828 sv_unmagic(varsv, how);
829 /* Croak if a self-tie on an aggregate is attempted. */
830 if (varsv == SvRV(sv) &&
831 (SvTYPE(varsv) == SVt_PVAV ||
832 SvTYPE(varsv) == SVt_PVHV))
834 "Self-ties of arrays and hashes are not supported");
835 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
838 SP = PL_stack_base + markoff;
848 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
849 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
851 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
854 if ((mg = SvTIED_mg(sv, how))) {
855 SV *obj = SvRV(mg->mg_obj);
859 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
860 isGV(gv) && (cv = GvCV(gv))) {
862 XPUSHs(SvTIED_obj((SV*)gv, mg));
863 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
866 call_sv((SV *)cv, G_VOID);
870 else if (ckWARN(WARN_UNTIE)) {
871 if (mg && SvREFCNT(obj) > 1)
872 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
873 "untie attempted while %"UVuf" inner references still exist",
874 (UV)SvREFCNT(obj) - 1 ) ;
877 sv_unmagic(sv, how) ;
887 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
888 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
890 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
893 if ((mg = SvTIED_mg(sv, how))) {
894 SV *osv = SvTIED_obj(sv, mg);
895 if (osv == mg->mg_obj)
896 osv = sv_mortalcopy(osv);
914 sv = sv_mortalcopy(&PL_sv_no);
915 sv_setpv(sv, "AnyDBM_File");
916 stash = gv_stashsv(sv, FALSE);
917 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
919 require_pv("AnyDBM_File.pm");
921 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
922 DIE(aTHX_ "No dbm on this machine");
932 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
934 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
937 call_sv((SV*)GvCV(gv), G_SCALAR);
940 if (!sv_isobject(TOPs)) {
945 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
948 call_sv((SV*)GvCV(gv), G_SCALAR);
952 if (sv_isobject(TOPs)) {
953 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
954 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
976 struct timeval timebuf;
977 struct timeval *tbuf = &timebuf;
981 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
986 # if BYTEORDER & 0xf0000
987 # define ORDERBYTE (0x88888888 - BYTEORDER)
989 # define ORDERBYTE (0x4444 - BYTEORDER)
995 for (i = 1; i <= 3; i++) {
1003 /* little endians can use vecs directly */
1004 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1011 masksize = NFDBITS / NBBY;
1013 masksize = sizeof(long); /* documented int, everyone seems to use long */
1015 Zero(&fd_sets[0], 4, char*);
1018 # if SELECT_MIN_BITS > 1
1019 /* If SELECT_MIN_BITS is greater than one we most probably will want
1020 * to align the sizes with SELECT_MIN_BITS/8 because for example
1021 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1022 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1023 * on (sets/tests/clears bits) is 32 bits. */
1024 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1026 growsize = sizeof(fd_set);
1034 timebuf.tv_sec = (long)value;
1035 value -= (NV)timebuf.tv_sec;
1036 timebuf.tv_usec = (long)(value * 1000000.0);
1039 tbuf = Null(struct timeval*);
1041 for (i = 1; i <= 3; i++) {
1047 else if (!SvPOK(sv))
1048 SvPV_force(sv,n_a); /* force string conversion */
1051 Sv_Grow(sv, growsize);
1055 while (++j <= growsize) {
1059 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1061 New(403, fd_sets[i], growsize, char);
1062 for (offset = 0; offset < growsize; offset += masksize) {
1063 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1064 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1067 fd_sets[i] = SvPVX(sv);
1071 nfound = PerlSock_select(
1073 (Select_fd_set_t) fd_sets[1],
1074 (Select_fd_set_t) fd_sets[2],
1075 (Select_fd_set_t) fd_sets[3],
1077 for (i = 1; i <= 3; i++) {
1080 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1082 for (offset = 0; offset < growsize; offset += masksize) {
1083 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1084 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1086 Safefree(fd_sets[i]);
1093 if (GIMME == G_ARRAY && tbuf) {
1094 value = (NV)(timebuf.tv_sec) +
1095 (NV)(timebuf.tv_usec) / 1000000.0;
1096 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1097 sv_setnv(sv, value);
1101 DIE(aTHX_ "select not implemented");
1106 Perl_setdefout(pTHX_ GV *gv)
1109 (void)SvREFCNT_inc(gv);
1111 SvREFCNT_dec(PL_defoutgv);
1118 GV *newdefout, *egv;
1121 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1123 egv = GvEGV(PL_defoutgv);
1128 XPUSHs(&PL_sv_undef);
1130 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1131 if (gvp && *gvp == egv) {
1132 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1136 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1141 if (!GvIO(newdefout))
1142 gv_IOadd(newdefout);
1143 setdefout(newdefout);
1161 if (gv && (io = GvIO(gv))
1162 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1164 I32 gimme = GIMME_V;
1166 XPUSHs(SvTIED_obj((SV*)io, mg));
1169 call_method("GETC", gimme);
1172 if (gimme == G_SCALAR)
1173 SvSetMagicSV_nosteal(TARG, TOPs);
1176 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1177 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1178 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1179 report_evil_fh(gv, io, PL_op->op_type);
1180 SETERRNO(EBADF,RMS_IFI);
1184 sv_setpv(TARG, " ");
1185 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1186 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1187 /* Find out how many bytes the char needs */
1188 Size_t len = UTF8SKIP(SvPVX(TARG));
1191 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1192 SvCUR_set(TARG,1+len);
1202 return pp_sysread();
1206 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1208 register PERL_CONTEXT *cx;
1209 I32 gimme = GIMME_V;
1215 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1217 PAD_SET_CUR(CvPADLIST(cv), 1);
1219 setdefout(gv); /* locally select filehandle so $% et al work */
1252 SV *tmpsv = sv_newmortal();
1253 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1254 name = SvPV_nolen(tmpsv);
1257 DIE(aTHX_ "Undefined format \"%s\" called", name);
1258 DIE(aTHX_ "Not a format reference");
1261 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1263 IoFLAGS(io) &= ~IOf_DIDTOP;
1264 return doform(cv,gv,PL_op->op_next);
1270 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1271 register IO *io = GvIOp(gv);
1272 PerlIO *ofp = IoOFP(io);
1276 register PERL_CONTEXT *cx;
1278 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1279 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1282 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1283 PL_formtarget != PL_toptarget)
1287 if (!IoTOP_GV(io)) {
1291 if (!IoTOP_NAME(io)) {
1292 if (!IoFMT_NAME(io))
1293 IoFMT_NAME(io) = savepv(GvNAME(gv));
1294 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1295 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1296 if ((topgv && GvFORM(topgv)) ||
1297 !gv_fetchpv("top",FALSE,SVt_PVFM))
1298 IoTOP_NAME(io) = savepv(SvPVX(topname));
1300 IoTOP_NAME(io) = savepv("top");
1302 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1303 if (!topgv || !GvFORM(topgv)) {
1304 IoLINES_LEFT(io) = 100000000;
1307 IoTOP_GV(io) = topgv;
1309 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1310 I32 lines = IoLINES_LEFT(io);
1311 char *s = SvPVX(PL_formtarget);
1312 if (lines <= 0) /* Yow, header didn't even fit!!! */
1314 while (lines-- > 0) {
1315 s = strchr(s, '\n');
1321 STRLEN save = SvCUR(PL_formtarget);
1322 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1323 do_print(PL_formtarget, ofp);
1324 SvCUR_set(PL_formtarget, save);
1325 sv_chop(PL_formtarget, s);
1326 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1329 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1330 do_print(PL_formfeed, ofp);
1331 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1333 PL_formtarget = PL_toptarget;
1334 IoFLAGS(io) |= IOf_DIDTOP;
1337 DIE(aTHX_ "bad top format reference");
1342 SV *sv = sv_newmortal();
1343 gv_efullname4(sv, fgv, Nullch, FALSE);
1344 name = SvPV_nolen(sv);
1347 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1350 DIE(aTHX_ "Undefined top format called");
1354 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1355 return doform(cv,gv,PL_op);
1359 POPBLOCK(cx,PL_curpm);
1365 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1367 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1368 else if (ckWARN(WARN_CLOSED))
1369 report_evil_fh(gv, io, PL_op->op_type);
1374 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1375 if (ckWARN(WARN_IO))
1376 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1378 if (!do_print(PL_formtarget, fp))
1381 FmLINES(PL_formtarget) = 0;
1382 SvCUR_set(PL_formtarget, 0);
1383 *SvEND(PL_formtarget) = '\0';
1384 if (IoFLAGS(io) & IOf_FLUSH)
1385 (void)PerlIO_flush(fp);
1390 PL_formtarget = PL_bodytarget;
1392 return pop_return();
1397 dSP; dMARK; dORIGMARK;
1404 if (PL_op->op_flags & OPf_STACKED)
1409 if (gv && (io = GvIO(gv))
1410 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1412 if (MARK == ORIGMARK) {
1415 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1419 *MARK = SvTIED_obj((SV*)io, mg);
1422 call_method("PRINTF", G_SCALAR);
1425 MARK = ORIGMARK + 1;
1432 if (!(io = GvIO(gv))) {
1433 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1434 report_evil_fh(gv, io, PL_op->op_type);
1435 SETERRNO(EBADF,RMS_IFI);
1438 else if (!(fp = IoOFP(io))) {
1439 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1441 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1442 else if (ckWARN(WARN_CLOSED))
1443 report_evil_fh(gv, io, PL_op->op_type);
1445 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1449 do_sprintf(sv, SP - MARK, MARK + 1);
1450 if (!do_print(sv, fp))
1453 if (IoFLAGS(io) & IOf_FLUSH)
1454 if (PerlIO_flush(fp) == EOF)
1465 PUSHs(&PL_sv_undef);
1486 /* Need TIEHANDLE method ? */
1488 tmps = SvPV(sv, len);
1489 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1490 IoLINES(GvIOp(gv)) = 0;
1494 PUSHs(&PL_sv_undef);
1501 dSP; dMARK; dORIGMARK; dTARGET;
1508 Sock_size_t bufsize;
1515 bool charstart = FALSE;
1516 STRLEN charskip = 0;
1520 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1521 && gv && (io = GvIO(gv))
1522 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1527 *MARK = SvTIED_obj((SV*)io, mg);
1529 call_method("READ", G_SCALAR);
1542 sv_setpvn(bufsv, "", 0);
1543 length = SvIVx(*++MARK);
1546 offset = SvIVx(*++MARK);
1550 if (!io || !IoIFP(io)) {
1551 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1552 report_evil_fh(gv, io, PL_op->op_type);
1553 SETERRNO(EBADF,RMS_IFI);
1556 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1557 buffer = SvPVutf8_force(bufsv, blen);
1558 /* UTF8 may not have been set if they are all low bytes */
1562 buffer = SvPV_force(bufsv, blen);
1565 DIE(aTHX_ "Negative length");
1573 if (PL_op->op_type == OP_RECV) {
1574 char namebuf[MAXPATHLEN];
1575 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1576 bufsize = sizeof (struct sockaddr_in);
1578 bufsize = sizeof namebuf;
1580 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1584 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1585 /* 'offset' means 'flags' here */
1586 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1587 (struct sockaddr *)namebuf, &bufsize);
1591 /* Bogus return without padding */
1592 bufsize = sizeof (struct sockaddr_in);
1594 SvCUR_set(bufsv, count);
1595 *SvEND(bufsv) = '\0';
1596 (void)SvPOK_only(bufsv);
1600 /* This should not be marked tainted if the fp is marked clean */
1601 if (!(IoFLAGS(io) & IOf_UNTAINT))
1602 SvTAINTED_on(bufsv);
1604 sv_setpvn(TARG, namebuf, bufsize);
1609 if (PL_op->op_type == OP_RECV)
1610 DIE(aTHX_ PL_no_sock_func, "recv");
1612 if (DO_UTF8(bufsv)) {
1613 /* offset adjust in characters not bytes */
1614 blen = sv_len_utf8(bufsv);
1617 if (-offset > (int)blen)
1618 DIE(aTHX_ "Offset outside string");
1621 if (DO_UTF8(bufsv)) {
1622 /* convert offset-as-chars to offset-as-bytes */
1623 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1626 bufsize = SvCUR(bufsv);
1627 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1628 if (offset > bufsize) { /* Zero any newly allocated space */
1629 Zero(buffer+bufsize, offset-bufsize, char);
1631 buffer = buffer + offset;
1633 if (PL_op->op_type == OP_SYSREAD) {
1634 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1635 if (IoTYPE(io) == IoTYPE_SOCKET) {
1636 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1642 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1647 #ifdef HAS_SOCKET__bad_code_maybe
1648 if (IoTYPE(io) == IoTYPE_SOCKET) {
1649 char namebuf[MAXPATHLEN];
1650 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1651 bufsize = sizeof (struct sockaddr_in);
1653 bufsize = sizeof namebuf;
1655 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1656 (struct sockaddr *)namebuf, &bufsize);
1661 count = PerlIO_read(IoIFP(io), buffer, length);
1662 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1663 if (count == 0 && PerlIO_error(IoIFP(io)))
1667 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1668 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1671 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1672 *SvEND(bufsv) = '\0';
1673 (void)SvPOK_only(bufsv);
1674 if (fp_utf8 && !IN_BYTES) {
1675 /* Look at utf8 we got back and count the characters */
1676 char *bend = buffer + count;
1677 while (buffer < bend) {
1679 skip = UTF8SKIP(buffer);
1682 if (buffer - charskip + skip > bend) {
1683 /* partial character - try for rest of it */
1684 length = skip - (bend-buffer);
1685 offset = bend - SvPVX(bufsv);
1697 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1698 provided amount read (count) was what was requested (length)
1700 if (got < wanted && count == length) {
1701 length = wanted - got;
1702 offset = bend - SvPVX(bufsv);
1705 /* return value is character count */
1710 /* This should not be marked tainted if the fp is marked clean */
1711 if (!(IoFLAGS(io) & IOf_UNTAINT))
1712 SvTAINTED_on(bufsv);
1725 int items = (SP - PL_stack_base) - TOPMARK;
1729 sv = sv_2mortal(newSViv(sv_len(*SP)));
1738 dSP; dMARK; dORIGMARK; dTARGET;
1749 if (PL_op->op_type == OP_SYSWRITE
1750 && gv && (io = GvIO(gv))
1751 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1756 *MARK = SvTIED_obj((SV*)io, mg);
1758 call_method("WRITE", G_SCALAR);
1769 #if Size_t_size > IVSIZE
1770 length = (Size_t)SvNVx(*++MARK);
1772 length = (Size_t)SvIVx(*++MARK);
1774 if ((SSize_t)length < 0)
1775 DIE(aTHX_ "Negative length");
1778 if (!io || !IoIFP(io)) {
1780 if (ckWARN(WARN_CLOSED))
1781 report_evil_fh(gv, io, PL_op->op_type);
1782 SETERRNO(EBADF,RMS_IFI);
1786 if (PerlIO_isutf8(IoIFP(io))) {
1787 buffer = SvPVutf8(bufsv, blen);
1791 sv_utf8_downgrade(bufsv, FALSE);
1792 buffer = SvPV(bufsv, blen);
1795 if (PL_op->op_type == OP_SYSWRITE) {
1797 if (DO_UTF8(bufsv)) {
1798 /* length and offset are in chars */
1799 blen = sv_len_utf8(bufsv);
1802 offset = SvIVx(*++MARK);
1804 if (-offset > (IV)blen)
1805 DIE(aTHX_ "Offset outside string");
1807 } else if (offset >= (IV)blen && blen > 0)
1808 DIE(aTHX_ "Offset outside string");
1811 if (length > blen - offset)
1812 length = blen - offset;
1813 if (DO_UTF8(bufsv)) {
1814 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1815 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1818 buffer = buffer+offset;
1820 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1821 if (IoTYPE(io) == IoTYPE_SOCKET) {
1822 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1828 /* See the note at doio.c:do_print about filesize limits. --jhi */
1829 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1834 else if (SP > MARK) {
1837 sockbuf = SvPVx(*++MARK, mlen);
1838 /* length is really flags */
1839 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1840 length, (struct sockaddr *)sockbuf, mlen);
1843 /* length is really flags */
1844 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1847 DIE(aTHX_ PL_no_sock_func, "send");
1853 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1854 #if Size_t_size > IVSIZE
1868 return pp_sysread();
1879 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1881 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1883 if (io && !IoIFP(io)) {
1884 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1886 IoFLAGS(io) &= ~IOf_START;
1887 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1888 sv_setpvn(GvSV(gv), "-", 1);
1889 SvSETMAGIC(GvSV(gv));
1891 else if (!nextargv(gv))
1896 gv = PL_last_in_gv; /* eof */
1899 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1901 if (gv && (io = GvIO(gv))
1902 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1905 XPUSHs(SvTIED_obj((SV*)io, mg));
1908 call_method("EOF", G_SCALAR);
1914 PUSHs(boolSV(!gv || do_eof(gv)));
1928 gv = PL_last_in_gv = (GV*)POPs;
1930 if (gv && (io = GvIO(gv))
1931 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1934 XPUSHs(SvTIED_obj((SV*)io, mg));
1937 call_method("TELL", G_SCALAR);
1943 #if LSEEKSIZE > IVSIZE
1944 PUSHn( do_tell(gv) );
1946 PUSHi( do_tell(gv) );
1953 return pp_sysseek();
1962 #if LSEEKSIZE > IVSIZE
1963 Off_t offset = (Off_t)SvNVx(POPs);
1965 Off_t offset = (Off_t)SvIVx(POPs);
1969 gv = PL_last_in_gv = (GV*)POPs;
1971 if (gv && (io = GvIO(gv))
1972 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1975 XPUSHs(SvTIED_obj((SV*)io, mg));
1976 #if LSEEKSIZE > IVSIZE
1977 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1979 XPUSHs(sv_2mortal(newSViv(offset)));
1981 XPUSHs(sv_2mortal(newSViv(whence)));
1984 call_method("SEEK", G_SCALAR);
1990 if (PL_op->op_type == OP_SEEK)
1991 PUSHs(boolSV(do_seek(gv, offset, whence)));
1993 Off_t sought = do_sysseek(gv, offset, whence);
1995 PUSHs(&PL_sv_undef);
1998 #if LSEEKSIZE > IVSIZE
2003 : newSVpvn(zero_but_true, ZBTLEN);
2004 PUSHs(sv_2mortal(sv));
2013 /* There seems to be no consensus on the length type of truncate()
2014 * and ftruncate(), both off_t and size_t have supporters. In
2015 * general one would think that when using large files, off_t is
2016 * at least as wide as size_t, so using an off_t should be okay. */
2017 /* XXX Configure probe for the length type of *truncate() needed XXX */
2020 #if Off_t_size > IVSIZE
2025 /* Checking for length < 0 is problematic as the type might or
2026 * might not be signed: if it is not, clever compilers will moan. */
2027 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2029 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2035 if (PL_op->op_flags & OPf_SPECIAL) {
2036 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2039 TAINT_PROPER("truncate");
2040 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2043 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2045 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2047 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2056 if (SvTYPE(sv) == SVt_PVGV) {
2057 tmpgv = (GV*)sv; /* *main::FRED for example */
2060 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2061 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2065 name = SvPV(sv, n_a);
2066 TAINT_PROPER("truncate");
2068 if (truncate(name, len) < 0)
2074 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2077 if (my_chsize(tmpfd, len) < 0)
2079 PerlLIO_close(tmpfd);
2088 SETERRNO(EBADF,RMS_IFI);
2092 DIE(aTHX_ "truncate not implemented");
2105 unsigned int func = POPu;
2106 int optype = PL_op->op_type;
2110 IO *io = gv ? GvIOn(gv) : 0;
2112 if (!io || !argsv || !IoIFP(io)) {
2113 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2114 report_evil_fh(gv, io, PL_op->op_type);
2115 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2119 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2122 s = SvPV_force(argsv, len);
2123 need = IOCPARM_LEN(func);
2125 s = Sv_Grow(argsv, need + 1);
2126 SvCUR_set(argsv, need);
2129 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2132 retval = SvIV(argsv);
2133 s = INT2PTR(char*,retval); /* ouch */
2136 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2138 if (optype == OP_IOCTL)
2140 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2142 DIE(aTHX_ "ioctl is not implemented");
2146 DIE(aTHX_ "fcntl is not implemented");
2148 #if defined(OS2) && defined(__EMX__)
2149 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2151 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2155 if (s[SvCUR(argsv)] != 17)
2156 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2158 s[SvCUR(argsv)] = 0; /* put our null back */
2159 SvSETMAGIC(argsv); /* Assume it has changed */
2168 PUSHp(zero_but_true, ZBTLEN);
2189 if (gv && (io = GvIO(gv)))
2196 (void)PerlIO_flush(fp);
2197 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2200 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2201 report_evil_fh(gv, io, PL_op->op_type);
2203 SETERRNO(EBADF,RMS_IFI);
2208 DIE(aTHX_ PL_no_func, "flock()");
2220 int protocol = POPi;
2226 io = gv ? GvIOn(gv) : NULL;
2229 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2230 report_evil_fh(gv, io, PL_op->op_type);
2232 do_close(gv, FALSE);
2233 SETERRNO(EBADF,LIB_INVARG);
2238 do_close(gv, FALSE);
2240 TAINT_PROPER("socket");
2241 fd = PerlSock_socket(domain, type, protocol);
2244 IoIFP(io) = PerlIO_fdopen(fd, "r"PIPESOCK_MODE); /* stdio gets confused about sockets */
2245 IoOFP(io) = PerlIO_fdopen(fd, "w"PIPESOCK_MODE);
2246 IoTYPE(io) = IoTYPE_SOCKET;
2247 if (!IoIFP(io) || !IoOFP(io)) {
2248 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2249 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2250 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2253 #if defined(HAS_FCNTL) && defined(F_SETFD)
2254 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2258 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2263 DIE(aTHX_ PL_no_sock_func, "socket");
2269 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2275 int protocol = POPi;
2282 io1 = gv1 ? GvIOn(gv1) : NULL;
2283 io2 = gv2 ? GvIOn(gv2) : NULL;
2284 if (!gv1 || !gv2 || !io1 || !io2) {
2285 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2287 report_evil_fh(gv1, io1, PL_op->op_type);
2289 report_evil_fh(gv1, io2, PL_op->op_type);
2292 do_close(gv1, FALSE);
2294 do_close(gv2, FALSE);
2299 do_close(gv1, FALSE);
2301 do_close(gv2, FALSE);
2303 TAINT_PROPER("socketpair");
2304 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2306 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"PIPESOCK_MODE);
2307 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"PIPESOCK_MODE);
2308 IoTYPE(io1) = IoTYPE_SOCKET;
2309 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"PIPESOCK_MODE);
2310 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"PIPESOCK_MODE);
2311 IoTYPE(io2) = IoTYPE_SOCKET;
2312 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2313 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2314 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2315 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2316 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2317 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2318 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2321 #if defined(HAS_FCNTL) && defined(F_SETFD)
2322 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2323 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2328 DIE(aTHX_ PL_no_sock_func, "socketpair");
2336 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2337 extern void GETPRIVMODE();
2338 extern void GETUSERMODE();
2343 register IO *io = GvIOn(gv);
2347 int mpeprivmode = 0;
2350 if (!io || !IoIFP(io))
2353 addr = SvPV(addrsv, len);
2354 TAINT_PROPER("bind");
2355 #ifdef MPE /* Deal with MPE bind() peculiarities */
2356 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2357 /* The address *MUST* stupidly be zero. */
2358 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2359 /* PRIV mode is required to bind() to ports < 1024. */
2360 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2361 ((struct sockaddr_in *)addr)->sin_port > 0) {
2362 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2367 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2368 (struct sockaddr *)addr, len) >= 0)
2371 #ifdef MPE /* Switch back to USER mode */
2382 if (ckWARN(WARN_CLOSED))
2383 report_evil_fh(gv, io, PL_op->op_type);
2384 SETERRNO(EBADF,SS_IVCHAN);
2387 DIE(aTHX_ PL_no_sock_func, "bind");
2398 register IO *io = GvIOn(gv);
2401 if (!io || !IoIFP(io))
2404 addr = SvPV(addrsv, len);
2405 TAINT_PROPER("connect");
2406 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2412 if (ckWARN(WARN_CLOSED))
2413 report_evil_fh(gv, io, PL_op->op_type);
2414 SETERRNO(EBADF,SS_IVCHAN);
2417 DIE(aTHX_ PL_no_sock_func, "connect");
2427 register IO *io = gv ? GvIOn(gv) : NULL;
2429 if (!gv || !io || !IoIFP(io))
2432 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2438 if (ckWARN(WARN_CLOSED))
2439 report_evil_fh(gv, io, PL_op->op_type);
2440 SETERRNO(EBADF,SS_IVCHAN);
2443 DIE(aTHX_ PL_no_sock_func, "listen");
2455 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2456 Sock_size_t len = sizeof saddr;
2468 if (!gstio || !IoIFP(gstio))
2472 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2476 do_close(ngv, FALSE);
2477 IoIFP(nstio) = PerlIO_fdopen(fd, "r"PIPESOCK_MODE);
2478 IoOFP(nstio) = PerlIO_fdopen(fd, "w"PIPESOCK_MODE);
2479 IoTYPE(nstio) = IoTYPE_SOCKET;
2480 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2481 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2482 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2483 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2486 #if defined(HAS_FCNTL) && defined(F_SETFD)
2487 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2491 len = sizeof saddr; /* EPOC somehow truncates info */
2492 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2495 PUSHp((char *)&saddr, len);
2499 if (ckWARN(WARN_CLOSED))
2500 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2501 SETERRNO(EBADF,SS_IVCHAN);
2507 DIE(aTHX_ PL_no_sock_func, "accept");
2517 register IO *io = GvIOn(gv);
2519 if (!io || !IoIFP(io))
2522 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2526 if (ckWARN(WARN_CLOSED))
2527 report_evil_fh(gv, io, PL_op->op_type);
2528 SETERRNO(EBADF,SS_IVCHAN);
2531 DIE(aTHX_ PL_no_sock_func, "shutdown");
2538 return pp_ssockopt();
2540 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2548 int optype = PL_op->op_type;
2551 unsigned int optname;
2557 if (optype == OP_GSOCKOPT)
2558 sv = sv_2mortal(NEWSV(22, 257));
2561 optname = (unsigned int) POPi;
2562 lvl = (unsigned int) POPi;
2566 if (!io || !IoIFP(io))
2569 fd = PerlIO_fileno(IoIFP(io));
2573 (void)SvPOK_only(sv);
2577 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2592 aint = (int)SvIV(sv);
2596 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2605 if (ckWARN(WARN_CLOSED))
2606 report_evil_fh(gv, io, optype);
2607 SETERRNO(EBADF,SS_IVCHAN);
2612 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2619 return pp_getpeername();
2621 DIE(aTHX_ PL_no_sock_func, "getsockname");
2629 int optype = PL_op->op_type;
2633 register IO *io = GvIOn(gv);
2636 if (!io || !IoIFP(io))
2639 sv = sv_2mortal(NEWSV(22, 257));
2640 (void)SvPOK_only(sv);
2644 fd = PerlIO_fileno(IoIFP(io));
2646 case OP_GETSOCKNAME:
2647 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2650 case OP_GETPEERNAME:
2651 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2653 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2655 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";
2656 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2657 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2658 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2659 sizeof(u_short) + sizeof(struct in_addr))) {
2666 #ifdef BOGUS_GETNAME_RETURN
2667 /* Interactive Unix, getpeername() and getsockname()
2668 does not return valid namelen */
2669 if (len == BOGUS_GETNAME_RETURN)
2670 len = sizeof(struct sockaddr);
2678 if (ckWARN(WARN_CLOSED))
2679 report_evil_fh(gv, io, optype);
2680 SETERRNO(EBADF,SS_IVCHAN);
2685 DIE(aTHX_ PL_no_sock_func, "getpeername");
2704 if (PL_op->op_flags & OPf_REF) {
2706 if (PL_op->op_type == OP_LSTAT) {
2707 if (gv != PL_defgv) {
2708 if (ckWARN(WARN_IO))
2709 Perl_warner(aTHX_ packWARN(WARN_IO),
2710 "lstat() on filehandle %s", GvENAME(gv));
2711 } else if (PL_laststype != OP_LSTAT)
2712 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2716 if (gv != PL_defgv) {
2717 PL_laststype = OP_STAT;
2719 sv_setpv(PL_statname, "");
2720 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2721 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2723 if (PL_laststatval < 0) {
2724 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2725 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2731 if (SvTYPE(sv) == SVt_PVGV) {
2735 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2737 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2738 Perl_warner(aTHX_ packWARN(WARN_IO),
2739 "lstat() on filehandle %s", GvENAME(gv));
2742 sv_setpv(PL_statname, SvPV(sv,n_a));
2745 PL_laststype = PL_op->op_type;
2746 if (PL_op->op_type == OP_LSTAT)
2747 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2750 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2751 if (PL_laststatval < 0) {
2752 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2753 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2759 if (gimme != G_ARRAY) {
2760 if (gimme != G_VOID)
2761 XPUSHs(boolSV(max));
2767 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2768 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2769 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2770 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2771 #if Uid_t_size > IVSIZE
2772 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2774 # if Uid_t_sign <= 0
2775 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2777 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2780 #if Gid_t_size > IVSIZE
2781 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2783 # if Gid_t_sign <= 0
2784 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2786 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2789 #ifdef USE_STAT_RDEV
2790 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2792 PUSHs(sv_2mortal(newSVpvn("", 0)));
2794 #if Off_t_size > IVSIZE
2795 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2797 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2800 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2801 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2802 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2804 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2805 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2806 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2808 #ifdef USE_STAT_BLOCKS
2809 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2810 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2812 PUSHs(sv_2mortal(newSVpvn("", 0)));
2813 PUSHs(sv_2mortal(newSVpvn("", 0)));
2823 #if defined(HAS_ACCESS) && defined(R_OK)
2825 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2826 result = access(TOPpx, R_OK);
2841 if (cando(S_IRUSR, 0, &PL_statcache))
2850 #if defined(HAS_ACCESS) && defined(W_OK)
2852 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2853 result = access(TOPpx, W_OK);
2868 if (cando(S_IWUSR, 0, &PL_statcache))
2877 #if defined(HAS_ACCESS) && defined(X_OK)
2879 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2880 result = access(TOPpx, X_OK);
2895 if (cando(S_IXUSR, 0, &PL_statcache))
2904 #ifdef PERL_EFF_ACCESS_R_OK
2906 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2907 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2922 if (cando(S_IRUSR, 1, &PL_statcache))
2931 #ifdef PERL_EFF_ACCESS_W_OK
2933 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2934 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2949 if (cando(S_IWUSR, 1, &PL_statcache))
2958 #ifdef PERL_EFF_ACCESS_X_OK
2960 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2961 result = PERL_EFF_ACCESS_X_OK(TOPpx);
2976 if (cando(S_IXUSR, 1, &PL_statcache))
2983 I32 result = my_stat();
2992 return pp_ftrowned();
2997 I32 result = my_stat();
3001 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3009 I32 result = my_stat();
3013 if (PL_statcache.st_size == 0)
3020 I32 result = my_stat();
3024 #if Off_t_size > IVSIZE
3025 PUSHn(PL_statcache.st_size);
3027 PUSHi(PL_statcache.st_size);
3034 I32 result = my_stat();
3038 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3044 I32 result = my_stat();
3048 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3054 I32 result = my_stat();
3058 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3064 I32 result = my_stat();
3068 if (S_ISSOCK(PL_statcache.st_mode))
3075 I32 result = my_stat();
3079 if (S_ISCHR(PL_statcache.st_mode))
3086 I32 result = my_stat();
3090 if (S_ISBLK(PL_statcache.st_mode))
3097 I32 result = my_stat();
3101 if (S_ISREG(PL_statcache.st_mode))
3108 I32 result = my_stat();
3112 if (S_ISDIR(PL_statcache.st_mode))
3119 I32 result = my_stat();
3123 if (S_ISFIFO(PL_statcache.st_mode))
3130 I32 result = my_lstat();
3134 if (S_ISLNK(PL_statcache.st_mode))
3143 I32 result = my_stat();
3147 if (PL_statcache.st_mode & S_ISUID)
3157 I32 result = my_stat();
3161 if (PL_statcache.st_mode & S_ISGID)
3171 I32 result = my_stat();
3175 if (PL_statcache.st_mode & S_ISVTX)
3186 char *tmps = Nullch;
3189 if (PL_op->op_flags & OPf_REF)
3191 else if (isGV(TOPs))
3193 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3194 gv = (GV*)SvRV(POPs);
3196 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3198 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3199 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3200 else if (tmps && isDIGIT(*tmps))
3204 if (PerlLIO_isatty(fd))
3209 #if defined(atarist) /* this will work with atariST. Configure will
3210 make guesses for other systems. */
3211 # define FILE_base(f) ((f)->_base)
3212 # define FILE_ptr(f) ((f)->_ptr)
3213 # define FILE_cnt(f) ((f)->_cnt)
3214 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3224 register STDCHAR *s;
3231 if (PL_op->op_flags & OPf_REF)
3233 else if (isGV(TOPs))
3235 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3236 gv = (GV*)SvRV(POPs);
3242 if (gv == PL_defgv) {
3244 io = GvIO(PL_statgv);
3247 goto really_filename;
3252 PL_laststatval = -1;
3253 sv_setpv(PL_statname, "");
3254 io = GvIO(PL_statgv);
3256 if (io && IoIFP(io)) {
3257 if (! PerlIO_has_base(IoIFP(io)))
3258 DIE(aTHX_ "-T and -B not implemented on filehandles");
3259 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3260 if (PL_laststatval < 0)
3262 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3263 if (PL_op->op_type == OP_FTTEXT)
3268 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3269 i = PerlIO_getc(IoIFP(io));
3271 (void)PerlIO_ungetc(IoIFP(io),i);
3273 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3275 len = PerlIO_get_bufsiz(IoIFP(io));
3276 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3277 /* sfio can have large buffers - limit to 512 */
3282 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3284 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3286 SETERRNO(EBADF,RMS_IFI);
3294 PL_laststatval = -1;
3295 PL_laststype = OP_STAT;
3296 sv_setpv(PL_statname, SvPV(sv, n_a));
3297 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3298 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3299 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3302 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3303 if (PL_laststatval < 0) {
3304 (void)PerlIO_close(fp);
3307 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3308 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3309 (void)PerlIO_close(fp);
3311 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3312 RETPUSHNO; /* special case NFS directories */
3313 RETPUSHYES; /* null file is anything */
3318 /* now scan s to look for textiness */
3319 /* XXX ASCII dependent code */
3321 #if defined(DOSISH) || defined(USEMYBINMODE)
3322 /* ignore trailing ^Z on short files */
3323 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3327 for (i = 0; i < len; i++, s++) {
3328 if (!*s) { /* null never allowed in text */
3333 else if (!(isPRINT(*s) || isSPACE(*s)))
3336 else if (*s & 128) {
3338 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3341 /* utf8 characters don't count as odd */
3342 if (UTF8_IS_START(*s)) {
3343 int ulen = UTF8SKIP(s);
3344 if (ulen < len - i) {
3346 for (j = 1; j < ulen; j++) {
3347 if (!UTF8_IS_CONTINUATION(s[j]))
3350 --ulen; /* loop does extra increment */
3360 *s != '\n' && *s != '\r' && *s != '\b' &&
3361 *s != '\t' && *s != '\f' && *s != 27)
3366 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3391 if( !tmps || !*tmps ) {
3392 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3393 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3395 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3400 deprecate("chdir('') or chdir(undef) as chdir()");
3401 tmps = SvPV(*svp, n_a);
3405 TAINT_PROPER("chdir");
3410 TAINT_PROPER("chdir");
3411 PUSHi( PerlDir_chdir(tmps) >= 0 );
3413 /* Clear the DEFAULT element of ENV so we'll get the new value
3415 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3423 dSP; dMARK; dTARGET;
3424 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3430 DIE(aTHX_ PL_no_func, "chown");
3440 TAINT_PROPER("chroot");
3441 PUSHi( chroot(tmps) >= 0 );
3444 DIE(aTHX_ PL_no_func, "chroot");
3450 dSP; dMARK; dTARGET;
3452 value = (I32)apply(PL_op->op_type, MARK, SP);
3460 dSP; dMARK; dTARGET;
3462 value = (I32)apply(PL_op->op_type, MARK, SP);
3470 dSP; dMARK; dTARGET;
3472 value = (I32)apply(PL_op->op_type, MARK, SP);
3484 char *tmps2 = POPpx;
3485 char *tmps = SvPV(TOPs, n_a);
3486 TAINT_PROPER("rename");
3488 anum = PerlLIO_rename(tmps, tmps2);
3490 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3491 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3494 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3495 (void)UNLINK(tmps2);
3496 if (!(anum = link(tmps, tmps2)))
3497 anum = UNLINK(tmps);
3510 char *tmps2 = POPpx;
3511 char *tmps = SvPV(TOPs, n_a);
3512 TAINT_PROPER("link");
3513 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3516 DIE(aTHX_ PL_no_func, "link");
3525 char *tmps2 = POPpx;
3526 char *tmps = SvPV(TOPs, n_a);
3527 TAINT_PROPER("symlink");
3528 SETi( symlink(tmps, tmps2) >= 0 );
3531 DIE(aTHX_ PL_no_func, "symlink");
3541 char buf[MAXPATHLEN];
3545 #ifndef INCOMPLETE_TAINTS
3549 len = readlink(tmps, buf, sizeof(buf) - 1);
3557 RETSETUNDEF; /* just pretend it's a normal file */
3561 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3563 S_dooneliner(pTHX_ char *cmd, char *filename)
3565 char *save_filename = filename;
3571 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3572 strcpy(cmdline, cmd);
3573 strcat(cmdline, " ");
3574 for (s = cmdline + strlen(cmdline); *filename; ) {
3579 myfp = PerlProc_popen(cmdline, "r");
3583 SV *tmpsv = sv_newmortal();
3584 /* Need to save/restore 'PL_rs' ?? */
3585 s = sv_gets(tmpsv, myfp, 0);
3586 (void)PerlProc_pclose(myfp);
3590 #ifdef HAS_SYS_ERRLIST
3595 /* you don't see this */
3597 #ifdef HAS_SYS_ERRLIST
3605 if (instr(s, errmsg)) {
3612 #define EACCES EPERM
3614 if (instr(s, "cannot make"))
3615 SETERRNO(EEXIST,RMS_FEX);
3616 else if (instr(s, "existing file"))
3617 SETERRNO(EEXIST,RMS_FEX);
3618 else if (instr(s, "ile exists"))
3619 SETERRNO(EEXIST,RMS_FEX);
3620 else if (instr(s, "non-exist"))
3621 SETERRNO(ENOENT,RMS_FNF);
3622 else if (instr(s, "does not exist"))
3623 SETERRNO(ENOENT,RMS_FNF);
3624 else if (instr(s, "not empty"))
3625 SETERRNO(EBUSY,SS_DEVOFFLINE);
3626 else if (instr(s, "cannot access"))
3627 SETERRNO(EACCES,RMS_PRV);
3629 SETERRNO(EPERM,RMS_PRV);
3632 else { /* some mkdirs return no failure indication */
3633 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3634 if (PL_op->op_type == OP_RMDIR)
3639 SETERRNO(EACCES,RMS_PRV); /* a guess */
3664 tmps = SvPV(TOPs, len);
3665 /* Different operating and file systems take differently to
3666 * trailing slashes. According to POSIX 1003.1 1996 Edition
3667 * any number of trailing slashes should be allowed.
3668 * Thusly we snip them away so that even non-conforming
3669 * systems are happy. */
3670 /* We should probably do this "filtering" for all
3671 * the functions that expect (potentially) directory names:
3672 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3673 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3674 if (len > 1 && tmps[len-1] == '/') {
3675 while (tmps[len-1] == '/' && len > 1)
3677 tmps = savepvn(tmps, len);
3681 TAINT_PROPER("mkdir");
3683 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3685 SETi( dooneliner("mkdir", tmps) );
3686 oldumask = PerlLIO_umask(0);
3687 PerlLIO_umask(oldumask);
3688 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3702 TAINT_PROPER("rmdir");
3704 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3706 XPUSHi( dooneliner("rmdir", tmps) );
3711 /* Directory calls. */
3715 #if defined(Direntry_t) && defined(HAS_READDIR)
3718 char *dirname = POPpx;
3720 register IO *io = GvIOn(gv);
3726 PerlDir_close(IoDIRP(io));
3727 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3733 SETERRNO(EBADF,RMS_DIR);
3736 DIE(aTHX_ PL_no_dir_func, "opendir");
3742 #if defined(Direntry_t) && defined(HAS_READDIR)
3744 #if !defined(I_DIRENT) && !defined(VMS)
3745 Direntry_t *readdir (DIR *);
3747 register Direntry_t *dp;
3749 register IO *io = GvIOn(gv);
3752 if (!io || !IoDIRP(io))
3755 if (GIMME == G_ARRAY) {
3757 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3759 sv = newSVpvn(dp->d_name, dp->d_namlen);
3761 sv = newSVpv(dp->d_name, 0);
3763 #ifndef INCOMPLETE_TAINTS
3764 if (!(IoFLAGS(io) & IOf_UNTAINT))
3767 XPUSHs(sv_2mortal(sv));
3771 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3774 sv = newSVpvn(dp->d_name, dp->d_namlen);
3776 sv = newSVpv(dp->d_name, 0);
3778 #ifndef INCOMPLETE_TAINTS
3779 if (!(IoFLAGS(io) & IOf_UNTAINT))
3782 XPUSHs(sv_2mortal(sv));
3788 SETERRNO(EBADF,RMS_ISI);
3789 if (GIMME == G_ARRAY)
3794 DIE(aTHX_ PL_no_dir_func, "readdir");
3800 #if defined(HAS_TELLDIR) || defined(telldir)
3802 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3803 /* XXX netbsd still seemed to.
3804 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3805 --JHI 1999-Feb-02 */
3806 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3807 long telldir (DIR *);
3810 register IO *io = GvIOn(gv);
3812 if (!io || !IoDIRP(io))
3815 PUSHi( PerlDir_tell(IoDIRP(io)) );
3819 SETERRNO(EBADF,RMS_ISI);
3822 DIE(aTHX_ PL_no_dir_func, "telldir");
3828 #if defined(HAS_SEEKDIR) || defined(seekdir)
3832 register IO *io = GvIOn(gv);
3834 if (!io || !IoDIRP(io))
3837 (void)PerlDir_seek(IoDIRP(io), along);
3842 SETERRNO(EBADF,RMS_ISI);
3845 DIE(aTHX_ PL_no_dir_func, "seekdir");
3851 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3854 register IO *io = GvIOn(gv);
3856 if (!io || !IoDIRP(io))
3859 (void)PerlDir_rewind(IoDIRP(io));
3863 SETERRNO(EBADF,RMS_ISI);
3866 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3872 #if defined(Direntry_t) && defined(HAS_READDIR)
3875 register IO *io = GvIOn(gv);
3877 if (!io || !IoDIRP(io))
3880 #ifdef VOID_CLOSEDIR
3881 PerlDir_close(IoDIRP(io));
3883 if (PerlDir_close(IoDIRP(io)) < 0) {
3884 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3893 SETERRNO(EBADF,RMS_IFI);
3896 DIE(aTHX_ PL_no_dir_func, "closedir");
3900 /* Process control. */
3910 PERL_FLUSHALL_FOR_CHILD;
3911 childpid = PerlProc_fork();
3916 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3917 SvREADONLY_off(GvSV(tmpgv));
3918 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3919 SvREADONLY_on(GvSV(tmpgv));
3921 #ifdef THREADS_HAVE_PIDS
3922 PL_ppid = (IV)getppid();
3924 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3929 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3934 PERL_FLUSHALL_FOR_CHILD;
3935 childpid = PerlProc_fork();
3941 DIE(aTHX_ PL_no_func, "fork");
3948 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3953 #ifdef PERL_OLD_SIGNALS
3954 childpid = wait4pid(-1, &argflags, 0);
3956 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
3960 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3961 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3962 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3964 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3969 DIE(aTHX_ PL_no_func, "wait");
3975 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3983 #ifdef PERL_OLD_SIGNALS
3984 childpid = wait4pid(childpid, &argflags, optype);
3986 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
3990 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3991 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3992 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3994 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3999 DIE(aTHX_ PL_no_func, "waitpid");
4005 dSP; dMARK; dORIGMARK; dTARGET;
4013 while (++MARK <= SP) {
4014 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4019 TAINT_PROPER("system");
4021 PERL_FLUSHALL_FOR_CHILD;
4022 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4027 if (PerlProc_pipe(pp) >= 0)
4029 while ((childpid = PerlProc_fork()) == -1) {
4030 if (errno != EAGAIN) {
4035 PerlLIO_close(pp[0]);
4036 PerlLIO_close(pp[1]);
4043 Sigsave_t ihand,qhand; /* place to save signals during system() */
4047 PerlLIO_close(pp[1]);
4049 rsignal_save(SIGINT, SIG_IGN, &ihand);
4050 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4053 result = wait4pid(childpid, &status, 0);
4054 } while (result == -1 && errno == EINTR);
4056 (void)rsignal_restore(SIGINT, &ihand);
4057 (void)rsignal_restore(SIGQUIT, &qhand);
4059 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4060 do_execfree(); /* free any memory child malloced on fork */
4066 while (n < sizeof(int)) {
4067 n1 = PerlLIO_read(pp[0],
4068 (void*)(((char*)&errkid)+n),
4074 PerlLIO_close(pp[0]);
4075 if (n) { /* Error */
4076 if (n != sizeof(int))
4077 DIE(aTHX_ "panic: kid popen errno read");
4078 errno = errkid; /* Propagate errno from kid */
4079 STATUS_CURRENT = -1;
4082 PUSHi(STATUS_CURRENT);
4086 PerlLIO_close(pp[0]);
4087 #if defined(HAS_FCNTL) && defined(F_SETFD)
4088 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4091 if (PL_op->op_flags & OPf_STACKED) {
4092 SV *really = *++MARK;
4093 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4095 else if (SP - MARK != 1)
4096 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4098 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4102 #else /* ! FORK or VMS or OS/2 */
4105 if (PL_op->op_flags & OPf_STACKED) {
4106 SV *really = *++MARK;
4108 value = (I32)do_aspawn(really, MARK, SP);
4110 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4113 else if (SP - MARK != 1) {
4115 value = (I32)do_aspawn(Nullsv, MARK, SP);
4117 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4121 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4123 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4125 STATUS_NATIVE_SET(value);
4128 PUSHi(result ? value : STATUS_CURRENT);
4129 #endif /* !FORK or VMS */
4135 dSP; dMARK; dORIGMARK; dTARGET;
4141 while (++MARK <= SP) {
4142 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4147 TAINT_PROPER("exec");
4149 PERL_FLUSHALL_FOR_CHILD;
4150 if (PL_op->op_flags & OPf_STACKED) {
4151 SV *really = *++MARK;
4152 value = (I32)do_aexec(really, MARK, SP);
4154 else if (SP - MARK != 1)
4156 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4160 (void ) do_aspawn(Nullsv, MARK, SP);
4164 value = (I32)do_aexec(Nullsv, MARK, SP);
4169 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4172 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4175 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4188 dSP; dMARK; dTARGET;
4190 value = (I32)apply(PL_op->op_type, MARK, SP);
4195 DIE(aTHX_ PL_no_func, "kill");
4203 # ifdef THREADS_HAVE_PIDS
4206 XPUSHi( getppid() );
4210 DIE(aTHX_ PL_no_func, "getppid");
4226 pgrp = (I32)BSD_GETPGRP(pid);
4228 if (pid != 0 && pid != PerlProc_getpid())
4229 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4235 DIE(aTHX_ PL_no_func, "getpgrp()");
4254 TAINT_PROPER("setpgrp");
4256 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4258 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4259 || (pid != 0 && pid != PerlProc_getpid()))
4261 DIE(aTHX_ "setpgrp can't take arguments");
4263 SETi( setpgrp() >= 0 );
4264 #endif /* USE_BSDPGRP */
4267 DIE(aTHX_ PL_no_func, "setpgrp()");
4273 #ifdef HAS_GETPRIORITY
4277 SETi( getpriority(which, who) );
4280 DIE(aTHX_ PL_no_func, "getpriority()");
4286 #ifdef HAS_SETPRIORITY
4291 TAINT_PROPER("setpriority");
4292 SETi( setpriority(which, who, niceval) >= 0 );
4295 DIE(aTHX_ PL_no_func, "setpriority()");
4305 XPUSHn( time(Null(Time_t*)) );
4307 XPUSHi( time(Null(Time_t*)) );
4318 (void)PerlProc_times(&PL_timesbuf);
4320 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4321 /* struct tms, though same data */
4325 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4326 if (GIMME == G_ARRAY) {
4327 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4328 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4329 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4333 DIE(aTHX_ "times not implemented");
4334 #endif /* HAS_TIMES */
4347 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4348 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4349 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4355 when = (Time_t)SvNVx(POPs);
4357 when = (Time_t)SvIVx(POPs);
4360 if (PL_op->op_type == OP_LOCALTIME)
4361 tmbuf = localtime(&when);
4363 tmbuf = gmtime(&when);
4365 if (GIMME != G_ARRAY) {
4371 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4372 dayname[tmbuf->tm_wday],
4373 monname[tmbuf->tm_mon],
4378 tmbuf->tm_year + 1900);
4379 PUSHs(sv_2mortal(tsv));
4384 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4385 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4386 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4387 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4388 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4389 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4390 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4391 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4392 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4403 anum = alarm((unsigned int)anum);
4410 DIE(aTHX_ PL_no_func, "alarm");
4421 (void)time(&lasttime);
4426 PerlProc_sleep((unsigned int)duration);
4429 XPUSHi(when - lasttime);
4433 /* Shared memory. */
4447 return pp_shmwrite();
4452 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4453 dSP; dMARK; dTARGET;
4454 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4463 /* Message passing. */
4477 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4478 dSP; dMARK; dTARGET;
4479 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4490 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4491 dSP; dMARK; dTARGET;
4492 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4505 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4506 dSP; dMARK; dTARGET;
4507 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4514 DIE(aTHX_ "System V IPC is not implemented on this machine");
4520 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4521 dSP; dMARK; dTARGET;
4522 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4530 PUSHp(zero_but_true, ZBTLEN);
4540 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4541 dSP; dMARK; dTARGET;
4542 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4551 /* Get system info. */
4555 #ifdef HAS_GETHOSTBYNAME
4556 return pp_ghostent();
4558 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4564 #ifdef HAS_GETHOSTBYADDR
4565 return pp_ghostent();
4567 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4573 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4575 I32 which = PL_op->op_type;
4576 register char **elem;
4578 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4579 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4580 struct hostent *gethostbyname(Netdb_name_t);
4581 struct hostent *gethostent(void);
4583 struct hostent *hent;
4588 if (which == OP_GHBYNAME) {
4589 #ifdef HAS_GETHOSTBYNAME
4590 char* name = POPpbytex;
4591 hent = PerlSock_gethostbyname(name);
4593 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4596 else if (which == OP_GHBYADDR) {
4597 #ifdef HAS_GETHOSTBYADDR
4598 int addrtype = POPi;
4601 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4603 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4605 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4609 #ifdef HAS_GETHOSTENT
4610 hent = PerlSock_gethostent();
4612 DIE(aTHX_ PL_no_sock_func, "gethostent");
4615 #ifdef HOST_NOT_FOUND
4617 #ifdef USE_REENTRANT_API
4618 # ifdef USE_GETHOSTENT_ERRNO
4619 h_errno = PL_reentrant_buffer->_gethostent_errno;
4622 STATUS_NATIVE_SET(h_errno);
4626 if (GIMME != G_ARRAY) {
4627 PUSHs(sv = sv_newmortal());
4629 if (which == OP_GHBYNAME) {
4631 sv_setpvn(sv, hent->h_addr, hent->h_length);
4634 sv_setpv(sv, (char*)hent->h_name);
4640 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4641 sv_setpv(sv, (char*)hent->h_name);
4642 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4643 for (elem = hent->h_aliases; elem && *elem; elem++) {
4644 sv_catpv(sv, *elem);
4646 sv_catpvn(sv, " ", 1);
4648 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4649 sv_setiv(sv, (IV)hent->h_addrtype);
4650 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4651 len = hent->h_length;
4652 sv_setiv(sv, (IV)len);
4654 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4655 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4656 sv_setpvn(sv, *elem, len);
4659 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4661 sv_setpvn(sv, hent->h_addr, len);
4666 DIE(aTHX_ PL_no_sock_func, "gethostent");
4672 #ifdef HAS_GETNETBYNAME
4673 return pp_gnetent();
4675 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4681 #ifdef HAS_GETNETBYADDR
4682 return pp_gnetent();
4684 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4690 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4692 I32 which = PL_op->op_type;
4693 register char **elem;
4695 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4696 struct netent *getnetbyaddr(Netdb_net_t, int);
4697 struct netent *getnetbyname(Netdb_name_t);
4698 struct netent *getnetent(void);
4700 struct netent *nent;
4703 if (which == OP_GNBYNAME){
4704 #ifdef HAS_GETNETBYNAME
4705 char *name = POPpbytex;
4706 nent = PerlSock_getnetbyname(name);
4708 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4711 else if (which == OP_GNBYADDR) {
4712 #ifdef HAS_GETNETBYADDR
4713 int addrtype = POPi;
4714 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4715 nent = PerlSock_getnetbyaddr(addr, addrtype);
4717 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4721 #ifdef HAS_GETNETENT
4722 nent = PerlSock_getnetent();
4724 DIE(aTHX_ PL_no_sock_func, "getnetent");
4727 #ifdef HOST_NOT_FOUND
4729 #ifdef USE_REENTRANT_API
4730 # ifdef USE_GETNETENT_ERRNO
4731 h_errno = PL_reentrant_buffer->_getnetent_errno;
4734 STATUS_NATIVE_SET(h_errno);
4739 if (GIMME != G_ARRAY) {
4740 PUSHs(sv = sv_newmortal());
4742 if (which == OP_GNBYNAME)
4743 sv_setiv(sv, (IV)nent->n_net);
4745 sv_setpv(sv, nent->n_name);
4751 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4752 sv_setpv(sv, nent->n_name);
4753 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4754 for (elem = nent->n_aliases; elem && *elem; elem++) {
4755 sv_catpv(sv, *elem);
4757 sv_catpvn(sv, " ", 1);
4759 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4760 sv_setiv(sv, (IV)nent->n_addrtype);
4761 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4762 sv_setiv(sv, (IV)nent->n_net);
4767 DIE(aTHX_ PL_no_sock_func, "getnetent");
4773 #ifdef HAS_GETPROTOBYNAME
4774 return pp_gprotoent();
4776 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4782 #ifdef HAS_GETPROTOBYNUMBER
4783 return pp_gprotoent();
4785 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4791 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4793 I32 which = PL_op->op_type;
4794 register char **elem;
4796 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4797 struct protoent *getprotobyname(Netdb_name_t);
4798 struct protoent *getprotobynumber(int);
4799 struct protoent *getprotoent(void);
4801 struct protoent *pent;
4804 if (which == OP_GPBYNAME) {
4805 #ifdef HAS_GETPROTOBYNAME
4806 char* name = POPpbytex;
4807 pent = PerlSock_getprotobyname(name);
4809 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4812 else if (which == OP_GPBYNUMBER) {
4813 #ifdef HAS_GETPROTOBYNUMBER
4815 pent = PerlSock_getprotobynumber(number);
4817 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4821 #ifdef HAS_GETPROTOENT
4822 pent = PerlSock_getprotoent();
4824 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4828 if (GIMME != G_ARRAY) {
4829 PUSHs(sv = sv_newmortal());
4831 if (which == OP_GPBYNAME)
4832 sv_setiv(sv, (IV)pent->p_proto);
4834 sv_setpv(sv, pent->p_name);
4840 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4841 sv_setpv(sv, pent->p_name);
4842 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4843 for (elem = pent->p_aliases; elem && *elem; elem++) {
4844 sv_catpv(sv, *elem);
4846 sv_catpvn(sv, " ", 1);
4848 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4849 sv_setiv(sv, (IV)pent->p_proto);
4854 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4860 #ifdef HAS_GETSERVBYNAME
4861 return pp_gservent();
4863 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4869 #ifdef HAS_GETSERVBYPORT
4870 return pp_gservent();
4872 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4878 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4880 I32 which = PL_op->op_type;
4881 register char **elem;
4883 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4884 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4885 struct servent *getservbyport(int, Netdb_name_t);
4886 struct servent *getservent(void);
4888 struct servent *sent;
4891 if (which == OP_GSBYNAME) {
4892 #ifdef HAS_GETSERVBYNAME
4893 char *proto = POPpbytex;
4894 char *name = POPpbytex;
4896 if (proto && !*proto)
4899 sent = PerlSock_getservbyname(name, proto);
4901 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4904 else if (which == OP_GSBYPORT) {
4905 #ifdef HAS_GETSERVBYPORT
4906 char *proto = POPpbytex;
4907 unsigned short port = (unsigned short)POPu;
4909 if (proto && !*proto)
4913 port = PerlSock_htons(port);
4915 sent = PerlSock_getservbyport(port, proto);
4917 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4921 #ifdef HAS_GETSERVENT
4922 sent = PerlSock_getservent();
4924 DIE(aTHX_ PL_no_sock_func, "getservent");
4928 if (GIMME != G_ARRAY) {
4929 PUSHs(sv = sv_newmortal());
4931 if (which == OP_GSBYNAME) {
4933 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4935 sv_setiv(sv, (IV)(sent->s_port));
4939 sv_setpv(sv, sent->s_name);
4945 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4946 sv_setpv(sv, sent->s_name);
4947 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4948 for (elem = sent->s_aliases; elem && *elem; elem++) {
4949 sv_catpv(sv, *elem);
4951 sv_catpvn(sv, " ", 1);
4953 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4955 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4957 sv_setiv(sv, (IV)(sent->s_port));
4959 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4960 sv_setpv(sv, sent->s_proto);
4965 DIE(aTHX_ PL_no_sock_func, "getservent");
4971 #ifdef HAS_SETHOSTENT
4973 PerlSock_sethostent(TOPi);
4976 DIE(aTHX_ PL_no_sock_func, "sethostent");
4982 #ifdef HAS_SETNETENT
4984 PerlSock_setnetent(TOPi);
4987 DIE(aTHX_ PL_no_sock_func, "setnetent");
4993 #ifdef HAS_SETPROTOENT
4995 PerlSock_setprotoent(TOPi);
4998 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5004 #ifdef HAS_SETSERVENT
5006 PerlSock_setservent(TOPi);
5009 DIE(aTHX_ PL_no_sock_func, "setservent");
5015 #ifdef HAS_ENDHOSTENT
5017 PerlSock_endhostent();
5021 DIE(aTHX_ PL_no_sock_func, "endhostent");
5027 #ifdef HAS_ENDNETENT
5029 PerlSock_endnetent();
5033 DIE(aTHX_ PL_no_sock_func, "endnetent");
5039 #ifdef HAS_ENDPROTOENT
5041 PerlSock_endprotoent();
5045 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5051 #ifdef HAS_ENDSERVENT
5053 PerlSock_endservent();
5057 DIE(aTHX_ PL_no_sock_func, "endservent");
5066 DIE(aTHX_ PL_no_func, "getpwnam");
5075 DIE(aTHX_ PL_no_func, "getpwuid");
5083 I32 which = PL_op->op_type;
5086 struct passwd *pwent = NULL;
5088 * We currently support only the SysV getsp* shadow password interface.
5089 * The interface is declared in <shadow.h> and often one needs to link
5090 * with -lsecurity or some such.
5091 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5094 * AIX getpwnam() is clever enough to return the encrypted password
5095 * only if the caller (euid?) is root.
5097 * There are at least two other shadow password APIs. Many platforms
5098 * seem to contain more than one interface for accessing the shadow
5099 * password databases, possibly for compatibility reasons.
5100 * The getsp*() is by far he simplest one, the other two interfaces
5101 * are much more complicated, but also very similar to each other.
5106 * struct pr_passwd *getprpw*();
5107 * The password is in
5108 * char getprpw*(...).ufld.fd_encrypt[]
5109 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5114 * struct es_passwd *getespw*();
5115 * The password is in
5116 * char *(getespw*(...).ufld.fd_encrypt)
5117 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5119 * Mention I_PROT here so that Configure probes for it.
5121 * In HP-UX for getprpw*() the manual page claims that one should include
5122 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5123 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5124 * and pp_sys.c already includes <shadow.h> if there is such.
5126 * Note that <sys/security.h> is already probed for, but currently
5127 * it is only included in special cases.
5129 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5130 * be preferred interface, even though also the getprpw*() interface
5131 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5132 * One also needs to call set_auth_parameters() in main() before
5133 * doing anything else, whether one is using getespw*() or getprpw*().
5135 * Note that accessing the shadow databases can be magnitudes
5136 * slower than accessing the standard databases.
5144 char* name = POPpbytex;
5145 pwent = getpwnam(name);
5151 pwent = getpwuid(uid);
5155 # ifdef HAS_GETPWENT
5157 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5158 if (pwent) pwent = getpwnam(pwent->pw_name);
5161 DIE(aTHX_ PL_no_func, "getpwent");
5167 if (GIMME != G_ARRAY) {
5168 PUSHs(sv = sv_newmortal());
5170 if (which == OP_GPWNAM)
5171 # if Uid_t_sign <= 0
5172 sv_setiv(sv, (IV)pwent->pw_uid);
5174 sv_setuv(sv, (UV)pwent->pw_uid);
5177 sv_setpv(sv, pwent->pw_name);
5183 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5184 sv_setpv(sv, pwent->pw_name);
5186 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5188 /* If we have getspnam(), we try to dig up the shadow
5189 * password. If we are underprivileged, the shadow
5190 * interface will set the errno to EACCES or similar,
5191 * and return a null pointer. If this happens, we will
5192 * use the dummy password (usually "*" or "x") from the
5193 * standard password database.
5195 * In theory we could skip the shadow call completely
5196 * if euid != 0 but in practice we cannot know which
5197 * security measures are guarding the shadow databases
5198 * on a random platform.
5200 * Resist the urge to use additional shadow interfaces.
5201 * Divert the urge to writing an extension instead.
5204 # ifdef HAS_GETSPNAM
5206 struct spwd *spwent;
5207 int saverrno; /* Save and restore errno so that
5208 * underprivileged attempts seem
5209 * to have never made the unsccessful
5210 * attempt to retrieve the shadow password. */
5213 spwent = getspnam(pwent->pw_name);
5215 if (spwent && spwent->sp_pwdp)
5216 sv_setpv(sv, spwent->sp_pwdp);
5220 if (!SvPOK(sv)) /* Use the standard password, then. */
5221 sv_setpv(sv, pwent->pw_passwd);
5224 # ifndef INCOMPLETE_TAINTS
5225 /* passwd is tainted because user himself can diddle with it.
5226 * admittedly not much and in a very limited way, but nevertheless. */
5230 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5231 # if Uid_t_sign <= 0
5232 sv_setiv(sv, (IV)pwent->pw_uid);
5234 sv_setuv(sv, (UV)pwent->pw_uid);
5237 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5238 # if Uid_t_sign <= 0
5239 sv_setiv(sv, (IV)pwent->pw_gid);
5241 sv_setuv(sv, (UV)pwent->pw_gid);
5243 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5244 * because of the poor interface of the Perl getpw*(),
5245 * not because there's some standard/convention saying so.
5246 * A better interface would have been to return a hash,
5247 * but we are accursed by our history, alas. --jhi. */
5248 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5250 sv_setiv(sv, (IV)pwent->pw_change);
5253 sv_setiv(sv, (IV)pwent->pw_quota);
5256 sv_setpv(sv, pwent->pw_age);
5261 /* pw_class and pw_comment are mutually exclusive--.
5262 * see the above note for pw_change, pw_quota, and pw_age. */
5263 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5265 sv_setpv(sv, pwent->pw_class);
5268 sv_setpv(sv, pwent->pw_comment);
5272 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5274 sv_setpv(sv, pwent->pw_gecos);
5276 # ifndef INCOMPLETE_TAINTS
5277 /* pw_gecos is tainted because user himself can diddle with it. */
5281 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5282 sv_setpv(sv, pwent->pw_dir);
5284 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5285 sv_setpv(sv, pwent->pw_shell);
5286 # ifndef INCOMPLETE_TAINTS
5287 /* pw_shell is tainted because user himself can diddle with it. */
5292 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5293 sv_setiv(sv, (IV)pwent->pw_expire);
5298 DIE(aTHX_ PL_no_func, "getpwent");
5304 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5309 DIE(aTHX_ PL_no_func, "setpwent");
5315 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5320 DIE(aTHX_ PL_no_func, "endpwent");
5329 DIE(aTHX_ PL_no_func, "getgrnam");
5338 DIE(aTHX_ PL_no_func, "getgrgid");
5346 I32 which = PL_op->op_type;
5347 register char **elem;
5349 struct group *grent;
5352 if (which == OP_GGRNAM) {
5353 char* name = POPpbytex;
5354 grent = (struct group *)getgrnam(name);
5356 else if (which == OP_GGRGID) {
5358 grent = (struct group *)getgrgid(gid);
5362 grent = (struct group *)getgrent();
5364 DIE(aTHX_ PL_no_func, "getgrent");
5368 if (GIMME != G_ARRAY) {
5369 PUSHs(sv = sv_newmortal());
5371 if (which == OP_GGRNAM)
5372 sv_setiv(sv, (IV)grent->gr_gid);
5374 sv_setpv(sv, grent->gr_name);
5380 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5381 sv_setpv(sv, grent->gr_name);
5383 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5385 sv_setpv(sv, grent->gr_passwd);
5388 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5389 sv_setiv(sv, (IV)grent->gr_gid);
5391 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5392 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5393 /* In UNICOS/mk (_CRAYMPP) the multithreading
5394 * versions (getgrnam_r, getgrgid_r)
5395 * seem to return an illegal pointer
5396 * as the group members list, gr_mem.
5397 * getgrent() doesn't even have a _r version
5398 * but the gr_mem is poisonous anyway.
5399 * So yes, you cannot get the list of group
5400 * members if building multithreaded in UNICOS/mk. */
5401 for (elem = grent->gr_mem; elem && *elem; elem++) {
5402 sv_catpv(sv, *elem);
5404 sv_catpvn(sv, " ", 1);
5411 DIE(aTHX_ PL_no_func, "getgrent");
5417 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5422 DIE(aTHX_ PL_no_func, "setgrent");
5428 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5433 DIE(aTHX_ PL_no_func, "endgrent");
5443 if (!(tmps = PerlProc_getlogin()))
5445 PUSHp(tmps, strlen(tmps));
5448 DIE(aTHX_ PL_no_func, "getlogin");
5452 /* Miscellaneous. */
5457 dSP; dMARK; dORIGMARK; dTARGET;
5458 register I32 items = SP - MARK;
5459 unsigned long a[20];
5465 while (++MARK <= SP) {
5466 if (SvTAINTED(*MARK)) {
5472 TAINT_PROPER("syscall");
5475 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5476 * or where sizeof(long) != sizeof(char*). But such machines will
5477 * not likely have syscall implemented either, so who cares?
5479 while (++MARK <= SP) {
5480 if (SvNIOK(*MARK) || !i)
5481 a[i++] = SvIV(*MARK);
5482 else if (*MARK == &PL_sv_undef)
5485 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5491 DIE(aTHX_ "Too many args to syscall");
5493 DIE(aTHX_ "Too few args to syscall");
5495 retval = syscall(a[0]);
5498 retval = syscall(a[0],a[1]);
5501 retval = syscall(a[0],a[1],a[2]);
5504 retval = syscall(a[0],a[1],a[2],a[3]);
5507 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5510 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5513 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5516 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5520 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5523 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5526 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5530 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5534 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5538 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5539 a[10],a[11],a[12],a[13]);
5541 #endif /* atarist */
5547 DIE(aTHX_ PL_no_func, "syscall");
5551 #ifdef FCNTL_EMULATE_FLOCK
5553 /* XXX Emulate flock() with fcntl().
5554 What's really needed is a good file locking module.
5558 fcntl_emulate_flock(int fd, int operation)
5562 switch (operation & ~LOCK_NB) {
5564 flock.l_type = F_RDLCK;
5567 flock.l_type = F_WRLCK;
5570 flock.l_type = F_UNLCK;
5576 flock.l_whence = SEEK_SET;
5577 flock.l_start = flock.l_len = (Off_t)0;
5579 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5582 #endif /* FCNTL_EMULATE_FLOCK */
5584 #ifdef LOCKF_EMULATE_FLOCK
5586 /* XXX Emulate flock() with lockf(). This is just to increase
5587 portability of scripts. The calls are not completely
5588 interchangeable. What's really needed is a good file
5592 /* The lockf() constants might have been defined in <unistd.h>.
5593 Unfortunately, <unistd.h> causes troubles on some mixed
5594 (BSD/POSIX) systems, such as SunOS 4.1.3.
5596 Further, the lockf() constants aren't POSIX, so they might not be
5597 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5598 just stick in the SVID values and be done with it. Sigh.
5602 # define F_ULOCK 0 /* Unlock a previously locked region */
5605 # define F_LOCK 1 /* Lock a region for exclusive use */
5608 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5611 # define F_TEST 3 /* Test a region for other processes locks */
5615 lockf_emulate_flock(int fd, int operation)
5621 /* flock locks entire file so for lockf we need to do the same */
5623 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5624 if (pos > 0) /* is seekable and needs to be repositioned */
5625 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5626 pos = -1; /* seek failed, so don't seek back afterwards */
5629 switch (operation) {
5631 /* LOCK_SH - get a shared lock */
5633 /* LOCK_EX - get an exclusive lock */
5635 i = lockf (fd, F_LOCK, 0);
5638 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5639 case LOCK_SH|LOCK_NB:
5640 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5641 case LOCK_EX|LOCK_NB:
5642 i = lockf (fd, F_TLOCK, 0);
5644 if ((errno == EAGAIN) || (errno == EACCES))
5645 errno = EWOULDBLOCK;
5648 /* LOCK_UN - unlock (non-blocking is a no-op) */
5650 case LOCK_UN|LOCK_NB:
5651 i = lockf (fd, F_ULOCK, 0);
5654 /* Default - can't decipher operation */
5661 if (pos > 0) /* need to restore position of the handle */
5662 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5667 #endif /* LOCKF_EMULATE_FLOCK */