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) && PL_in_eval) ? 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");
612 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
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);
741 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
742 (discp) ? SvPV_nolen(discp) : Nullch)) {
760 I32 markoff = MARK - PL_stack_base;
762 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 \"%s\"",
812 methname, SvPV(*MARK,n_a));
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);
1183 sv_setpv(TARG, " ");
1184 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1185 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1186 /* Find out how many bytes the char needs */
1187 Size_t len = UTF8SKIP(SvPVX(TARG));
1190 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1191 SvCUR_set(TARG,1+len);
1201 return pp_sysread();
1205 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1207 register PERL_CONTEXT *cx;
1208 I32 gimme = GIMME_V;
1214 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1216 PAD_SET_CUR(CvPADLIST(cv), 1);
1218 setdefout(gv); /* locally select filehandle so $% et al work */
1251 SV *tmpsv = sv_newmortal();
1252 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1253 name = SvPV_nolen(tmpsv);
1256 DIE(aTHX_ "Undefined format \"%s\" called", name);
1257 DIE(aTHX_ "Not a format reference");
1260 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1262 IoFLAGS(io) &= ~IOf_DIDTOP;
1263 return doform(cv,gv,PL_op->op_next);
1269 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1270 register IO *io = GvIOp(gv);
1271 PerlIO *ofp = IoOFP(io);
1275 register PERL_CONTEXT *cx;
1277 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1278 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1281 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1282 PL_formtarget != PL_toptarget)
1286 if (!IoTOP_GV(io)) {
1290 if (!IoTOP_NAME(io)) {
1291 if (!IoFMT_NAME(io))
1292 IoFMT_NAME(io) = savepv(GvNAME(gv));
1293 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1294 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1295 if ((topgv && GvFORM(topgv)) ||
1296 !gv_fetchpv("top",FALSE,SVt_PVFM))
1297 IoTOP_NAME(io) = savepv(SvPVX(topname));
1299 IoTOP_NAME(io) = savepv("top");
1301 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1302 if (!topgv || !GvFORM(topgv)) {
1303 IoLINES_LEFT(io) = 100000000;
1306 IoTOP_GV(io) = topgv;
1308 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1309 I32 lines = IoLINES_LEFT(io);
1310 char *s = SvPVX(PL_formtarget);
1311 if (lines <= 0) /* Yow, header didn't even fit!!! */
1313 while (lines-- > 0) {
1314 s = strchr(s, '\n');
1320 STRLEN save = SvCUR(PL_formtarget);
1321 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1322 do_print(PL_formtarget, ofp);
1323 SvCUR_set(PL_formtarget, save);
1324 sv_chop(PL_formtarget, s);
1325 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1328 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1329 do_print(PL_formfeed, ofp);
1330 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1332 PL_formtarget = PL_toptarget;
1333 IoFLAGS(io) |= IOf_DIDTOP;
1336 DIE(aTHX_ "bad top format reference");
1341 SV *sv = sv_newmortal();
1342 gv_efullname4(sv, fgv, Nullch, FALSE);
1343 name = SvPV_nolen(sv);
1346 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1349 DIE(aTHX_ "Undefined top format called");
1353 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1354 return doform(cv,gv,PL_op);
1358 POPBLOCK(cx,PL_curpm);
1364 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1366 /* integrate with report_evil_fh()? */
1369 SV* sv = sv_newmortal();
1370 gv_efullname4(sv, gv, Nullch, FALSE);
1371 name = SvPV_nolen(sv);
1374 Perl_warner(aTHX_ packWARN(WARN_IO),
1375 "Filehandle %s opened only for input", name);
1377 Perl_warner(aTHX_ packWARN(WARN_IO),
1378 "Filehandle opened only for input");
1380 else if (ckWARN(WARN_CLOSED))
1381 report_evil_fh(gv, io, PL_op->op_type);
1386 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1387 if (ckWARN(WARN_IO))
1388 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1390 if (!do_print(PL_formtarget, fp))
1393 FmLINES(PL_formtarget) = 0;
1394 SvCUR_set(PL_formtarget, 0);
1395 *SvEND(PL_formtarget) = '\0';
1396 if (IoFLAGS(io) & IOf_FLUSH)
1397 (void)PerlIO_flush(fp);
1402 PL_formtarget = PL_bodytarget;
1404 return pop_return();
1409 dSP; dMARK; dORIGMARK;
1416 if (PL_op->op_flags & OPf_STACKED)
1421 if (gv && (io = GvIO(gv))
1422 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1424 if (MARK == ORIGMARK) {
1427 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1431 *MARK = SvTIED_obj((SV*)io, mg);
1434 call_method("PRINTF", G_SCALAR);
1437 MARK = ORIGMARK + 1;
1444 if (!(io = GvIO(gv))) {
1445 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1446 report_evil_fh(gv, io, PL_op->op_type);
1447 SETERRNO(EBADF,RMS_IFI);
1450 else if (!(fp = IoOFP(io))) {
1451 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1452 /* integrate with report_evil_fh()? */
1456 gv_efullname4(sv, gv, Nullch, FALSE);
1457 name = SvPV_nolen(sv);
1460 Perl_warner(aTHX_ packWARN(WARN_IO),
1461 "Filehandle %s opened only for input", name);
1463 Perl_warner(aTHX_ packWARN(WARN_IO),
1464 "Filehandle opened only for input");
1466 else if (ckWARN(WARN_CLOSED))
1467 report_evil_fh(gv, io, PL_op->op_type);
1469 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1473 do_sprintf(sv, SP - MARK, MARK + 1);
1474 if (!do_print(sv, fp))
1477 if (IoFLAGS(io) & IOf_FLUSH)
1478 if (PerlIO_flush(fp) == EOF)
1489 PUSHs(&PL_sv_undef);
1510 /* Need TIEHANDLE method ? */
1512 tmps = SvPV(sv, len);
1513 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1514 IoLINES(GvIOp(gv)) = 0;
1518 PUSHs(&PL_sv_undef);
1525 dSP; dMARK; dORIGMARK; dTARGET;
1532 Sock_size_t bufsize;
1539 bool charstart = FALSE;
1540 STRLEN charskip = 0;
1544 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1545 && gv && (io = GvIO(gv))
1546 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1551 *MARK = SvTIED_obj((SV*)io, mg);
1553 call_method("READ", G_SCALAR);
1566 sv_setpvn(bufsv, "", 0);
1567 length = SvIVx(*++MARK);
1570 offset = SvIVx(*++MARK);
1574 if (!io || !IoIFP(io))
1576 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1577 buffer = SvPVutf8_force(bufsv, blen);
1578 /* UTF8 may not have been set if they are all low bytes */
1582 buffer = SvPV_force(bufsv, blen);
1585 DIE(aTHX_ "Negative length");
1593 if (PL_op->op_type == OP_RECV) {
1594 char namebuf[MAXPATHLEN];
1595 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1596 bufsize = sizeof (struct sockaddr_in);
1598 bufsize = sizeof namebuf;
1600 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1604 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1605 /* 'offset' means 'flags' here */
1606 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1607 (struct sockaddr *)namebuf, &bufsize);
1611 /* Bogus return without padding */
1612 bufsize = sizeof (struct sockaddr_in);
1614 SvCUR_set(bufsv, count);
1615 *SvEND(bufsv) = '\0';
1616 (void)SvPOK_only(bufsv);
1620 /* This should not be marked tainted if the fp is marked clean */
1621 if (!(IoFLAGS(io) & IOf_UNTAINT))
1622 SvTAINTED_on(bufsv);
1624 sv_setpvn(TARG, namebuf, bufsize);
1629 if (PL_op->op_type == OP_RECV)
1630 DIE(aTHX_ PL_no_sock_func, "recv");
1632 if (DO_UTF8(bufsv)) {
1633 /* offset adjust in characters not bytes */
1634 blen = sv_len_utf8(bufsv);
1637 if (-offset > (int)blen)
1638 DIE(aTHX_ "Offset outside string");
1641 if (DO_UTF8(bufsv)) {
1642 /* convert offset-as-chars to offset-as-bytes */
1643 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1646 bufsize = SvCUR(bufsv);
1647 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1648 if (offset > bufsize) { /* Zero any newly allocated space */
1649 Zero(buffer+bufsize, offset-bufsize, char);
1651 buffer = buffer + offset;
1653 if (PL_op->op_type == OP_SYSREAD) {
1654 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1655 if (IoTYPE(io) == IoTYPE_SOCKET) {
1656 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1662 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1667 #ifdef HAS_SOCKET__bad_code_maybe
1668 if (IoTYPE(io) == IoTYPE_SOCKET) {
1669 char namebuf[MAXPATHLEN];
1670 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1671 bufsize = sizeof (struct sockaddr_in);
1673 bufsize = sizeof namebuf;
1675 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1676 (struct sockaddr *)namebuf, &bufsize);
1681 count = PerlIO_read(IoIFP(io), buffer, length);
1682 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1683 if (count == 0 && PerlIO_error(IoIFP(io)))
1687 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1689 /* integrate with report_evil_fh()? */
1692 SV* sv = sv_newmortal();
1693 gv_efullname4(sv, gv, Nullch, FALSE);
1694 name = SvPV_nolen(sv);
1697 Perl_warner(aTHX_ packWARN(WARN_IO),
1698 "Filehandle %s opened only for output", name);
1700 Perl_warner(aTHX_ packWARN(WARN_IO),
1701 "Filehandle opened only for output");
1705 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1706 *SvEND(bufsv) = '\0';
1707 (void)SvPOK_only(bufsv);
1708 if (fp_utf8 && !IN_BYTES) {
1709 /* Look at utf8 we got back and count the characters */
1710 char *bend = buffer + count;
1711 while (buffer < bend) {
1713 skip = UTF8SKIP(buffer);
1716 if (buffer - charskip + skip > bend) {
1717 /* partial character - try for rest of it */
1718 length = skip - (bend-buffer);
1719 offset = bend - SvPVX(bufsv);
1731 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1732 provided amount read (count) was what was requested (length)
1734 if (got < wanted && count == length) {
1735 length = wanted - got;
1736 offset = bend - SvPVX(bufsv);
1739 /* return value is character count */
1744 /* This should not be marked tainted if the fp is marked clean */
1745 if (!(IoFLAGS(io) & IOf_UNTAINT))
1746 SvTAINTED_on(bufsv);
1759 int items = (SP - PL_stack_base) - TOPMARK;
1763 sv = sv_2mortal(newSViv(sv_len(*SP)));
1772 dSP; dMARK; dORIGMARK; dTARGET;
1783 if (PL_op->op_type == OP_SYSWRITE
1784 && gv && (io = GvIO(gv))
1785 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1790 *MARK = SvTIED_obj((SV*)io, mg);
1792 call_method("WRITE", G_SCALAR);
1803 #if Size_t_size > IVSIZE
1804 length = (Size_t)SvNVx(*++MARK);
1806 length = (Size_t)SvIVx(*++MARK);
1808 if ((SSize_t)length < 0)
1809 DIE(aTHX_ "Negative length");
1812 if (!io || !IoIFP(io)) {
1814 if (ckWARN(WARN_CLOSED))
1815 report_evil_fh(gv, io, PL_op->op_type);
1819 if (PerlIO_isutf8(IoIFP(io))) {
1820 buffer = SvPVutf8(bufsv, blen);
1824 sv_utf8_downgrade(bufsv, FALSE);
1825 buffer = SvPV(bufsv, blen);
1828 if (PL_op->op_type == OP_SYSWRITE) {
1830 if (DO_UTF8(bufsv)) {
1831 /* length and offset are in chars */
1832 blen = sv_len_utf8(bufsv);
1835 offset = SvIVx(*++MARK);
1837 if (-offset > (IV)blen)
1838 DIE(aTHX_ "Offset outside string");
1840 } else if (offset >= (IV)blen && blen > 0)
1841 DIE(aTHX_ "Offset outside string");
1844 if (length > blen - offset)
1845 length = blen - offset;
1846 if (DO_UTF8(bufsv)) {
1847 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1848 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1851 buffer = buffer+offset;
1853 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1854 if (IoTYPE(io) == IoTYPE_SOCKET) {
1855 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1861 /* See the note at doio.c:do_print about filesize limits. --jhi */
1862 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1867 else if (SP > MARK) {
1870 sockbuf = SvPVx(*++MARK, mlen);
1871 /* length is really flags */
1872 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1873 length, (struct sockaddr *)sockbuf, mlen);
1876 /* length is really flags */
1877 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1880 DIE(aTHX_ PL_no_sock_func, "send");
1886 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1887 #if Size_t_size > IVSIZE
1901 return pp_sysread();
1912 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1914 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1916 if (io && !IoIFP(io)) {
1917 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1919 IoFLAGS(io) &= ~IOf_START;
1920 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1921 sv_setpvn(GvSV(gv), "-", 1);
1922 SvSETMAGIC(GvSV(gv));
1924 else if (!nextargv(gv))
1929 gv = PL_last_in_gv; /* eof */
1932 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1934 if (gv && (io = GvIO(gv))
1935 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1938 XPUSHs(SvTIED_obj((SV*)io, mg));
1941 call_method("EOF", G_SCALAR);
1947 PUSHs(boolSV(!gv || do_eof(gv)));
1961 gv = PL_last_in_gv = (GV*)POPs;
1963 if (gv && (io = GvIO(gv))
1964 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1967 XPUSHs(SvTIED_obj((SV*)io, mg));
1970 call_method("TELL", G_SCALAR);
1976 #if LSEEKSIZE > IVSIZE
1977 PUSHn( do_tell(gv) );
1979 PUSHi( do_tell(gv) );
1986 return pp_sysseek();
1995 #if LSEEKSIZE > IVSIZE
1996 Off_t offset = (Off_t)SvNVx(POPs);
1998 Off_t offset = (Off_t)SvIVx(POPs);
2002 gv = PL_last_in_gv = (GV*)POPs;
2004 if (gv && (io = GvIO(gv))
2005 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2008 XPUSHs(SvTIED_obj((SV*)io, mg));
2009 #if LSEEKSIZE > IVSIZE
2010 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2012 XPUSHs(sv_2mortal(newSViv(offset)));
2014 XPUSHs(sv_2mortal(newSViv(whence)));
2017 call_method("SEEK", G_SCALAR);
2023 if (PL_op->op_type == OP_SEEK)
2024 PUSHs(boolSV(do_seek(gv, offset, whence)));
2026 Off_t sought = do_sysseek(gv, offset, whence);
2028 PUSHs(&PL_sv_undef);
2031 #if LSEEKSIZE > IVSIZE
2036 : newSVpvn(zero_but_true, ZBTLEN);
2037 PUSHs(sv_2mortal(sv));
2046 /* There seems to be no consensus on the length type of truncate()
2047 * and ftruncate(), both off_t and size_t have supporters. In
2048 * general one would think that when using large files, off_t is
2049 * at least as wide as size_t, so using an off_t should be okay. */
2050 /* XXX Configure probe for the length type of *truncate() needed XXX */
2053 #if Off_t_size > IVSIZE
2058 /* Checking for length < 0 is problematic as the type might or
2059 * might not be signed: if it is not, clever compilers will moan. */
2060 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2062 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2068 if (PL_op->op_flags & OPf_SPECIAL) {
2069 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2072 TAINT_PROPER("truncate");
2073 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2076 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2078 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2080 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2089 if (SvTYPE(sv) == SVt_PVGV) {
2090 tmpgv = (GV*)sv; /* *main::FRED for example */
2093 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2094 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2098 name = SvPV(sv, n_a);
2099 TAINT_PROPER("truncate");
2101 if (truncate(name, len) < 0)
2107 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2110 if (my_chsize(tmpfd, len) < 0)
2112 PerlLIO_close(tmpfd);
2121 SETERRNO(EBADF,RMS_IFI);
2125 DIE(aTHX_ "truncate not implemented");
2138 unsigned int func = POPu;
2139 int optype = PL_op->op_type;
2143 IO *io = gv ? GvIOn(gv) : 0;
2145 if (!io || !argsv || !IoIFP(io)) {
2146 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2147 report_evil_fh(gv, io, PL_op->op_type);
2148 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2152 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2155 s = SvPV_force(argsv, len);
2156 need = IOCPARM_LEN(func);
2158 s = Sv_Grow(argsv, need + 1);
2159 SvCUR_set(argsv, need);
2162 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2165 retval = SvIV(argsv);
2166 s = INT2PTR(char*,retval); /* ouch */
2169 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2171 if (optype == OP_IOCTL)
2173 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2175 DIE(aTHX_ "ioctl is not implemented");
2179 DIE(aTHX_ "fcntl is not implemented");
2181 #if defined(OS2) && defined(__EMX__)
2182 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2184 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2188 if (s[SvCUR(argsv)] != 17)
2189 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2191 s[SvCUR(argsv)] = 0; /* put our null back */
2192 SvSETMAGIC(argsv); /* Assume it has changed */
2201 PUSHp(zero_but_true, ZBTLEN);
2222 if (gv && (io = GvIO(gv)))
2229 (void)PerlIO_flush(fp);
2230 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2233 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2234 report_evil_fh(gv, io, PL_op->op_type);
2236 SETERRNO(EBADF,RMS_IFI);
2241 DIE(aTHX_ PL_no_func, "flock()");
2253 int protocol = POPi;
2259 io = gv ? GvIOn(gv) : NULL;
2262 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2263 report_evil_fh(gv, io, PL_op->op_type);
2265 do_close(gv, FALSE);
2266 SETERRNO(EBADF,LIB_INVARG);
2271 do_close(gv, FALSE);
2273 TAINT_PROPER("socket");
2274 fd = PerlSock_socket(domain, type, protocol);
2277 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2278 IoOFP(io) = PerlIO_fdopen(fd, "w");
2279 IoTYPE(io) = IoTYPE_SOCKET;
2280 if (!IoIFP(io) || !IoOFP(io)) {
2281 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2282 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2283 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2286 #if defined(HAS_FCNTL) && defined(F_SETFD)
2287 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2291 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2296 DIE(aTHX_ PL_no_sock_func, "socket");
2302 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2308 int protocol = POPi;
2315 io1 = gv1 ? GvIOn(gv1) : NULL;
2316 io2 = gv2 ? GvIOn(gv2) : NULL;
2317 if (!gv1 || !gv2 || !io1 || !io2) {
2318 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2320 report_evil_fh(gv1, io1, PL_op->op_type);
2322 report_evil_fh(gv1, io2, PL_op->op_type);
2325 do_close(gv1, FALSE);
2327 do_close(gv2, FALSE);
2332 do_close(gv1, FALSE);
2334 do_close(gv2, FALSE);
2336 TAINT_PROPER("socketpair");
2337 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2339 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2340 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
2341 IoTYPE(io1) = IoTYPE_SOCKET;
2342 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2343 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
2344 IoTYPE(io2) = IoTYPE_SOCKET;
2345 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2346 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2347 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2348 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2349 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2350 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2351 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2354 #if defined(HAS_FCNTL) && defined(F_SETFD)
2355 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2356 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2361 DIE(aTHX_ PL_no_sock_func, "socketpair");
2369 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2370 extern void GETPRIVMODE();
2371 extern void GETUSERMODE();
2376 register IO *io = GvIOn(gv);
2380 int mpeprivmode = 0;
2383 if (!io || !IoIFP(io))
2386 addr = SvPV(addrsv, len);
2387 TAINT_PROPER("bind");
2388 #ifdef MPE /* Deal with MPE bind() peculiarities */
2389 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2390 /* The address *MUST* stupidly be zero. */
2391 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2392 /* PRIV mode is required to bind() to ports < 1024. */
2393 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2394 ((struct sockaddr_in *)addr)->sin_port > 0) {
2395 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2400 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2401 (struct sockaddr *)addr, len) >= 0)
2404 #ifdef MPE /* Switch back to USER mode */
2415 if (ckWARN(WARN_CLOSED))
2416 report_evil_fh(gv, io, PL_op->op_type);
2417 SETERRNO(EBADF,SS_IVCHAN);
2420 DIE(aTHX_ PL_no_sock_func, "bind");
2431 register IO *io = GvIOn(gv);
2434 if (!io || !IoIFP(io))
2437 addr = SvPV(addrsv, len);
2438 TAINT_PROPER("connect");
2439 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2445 if (ckWARN(WARN_CLOSED))
2446 report_evil_fh(gv, io, PL_op->op_type);
2447 SETERRNO(EBADF,SS_IVCHAN);
2450 DIE(aTHX_ PL_no_sock_func, "connect");
2460 register IO *io = gv ? GvIOn(gv) : NULL;
2462 if (!gv || !io || !IoIFP(io))
2465 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2471 if (ckWARN(WARN_CLOSED))
2472 report_evil_fh(gv, io, PL_op->op_type);
2473 SETERRNO(EBADF,SS_IVCHAN);
2476 DIE(aTHX_ PL_no_sock_func, "listen");
2488 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2489 Sock_size_t len = sizeof saddr;
2502 if (!gstio || !IoIFP(gstio))
2506 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2510 do_close(ngv, FALSE);
2511 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2512 /* FIXME: we dup(fd) here so that refcounting of fd's does not inhibit
2513 fclose of IoOFP's FILE * - and hence leak memory.
2514 Special treatment of _this_ case of IoIFP != IoOFP seems wrong.
2516 IoOFP(nstio) = PerlIO_fdopen(fd2 = PerlLIO_dup(fd), "w");
2517 IoTYPE(nstio) = IoTYPE_SOCKET;
2518 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2519 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2520 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2521 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2524 #if defined(HAS_FCNTL) && defined(F_SETFD)
2525 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2526 fcntl(fd2, F_SETFD, fd2 > PL_maxsysfd); /* ensure close-on-exec */
2530 len = sizeof saddr; /* EPOC somehow truncates info */
2531 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2534 PUSHp((char *)&saddr, len);
2538 if (ckWARN(WARN_CLOSED))
2539 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2540 SETERRNO(EBADF,SS_IVCHAN);
2546 DIE(aTHX_ PL_no_sock_func, "accept");
2556 register IO *io = GvIOn(gv);
2558 if (!io || !IoIFP(io))
2561 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2565 if (ckWARN(WARN_CLOSED))
2566 report_evil_fh(gv, io, PL_op->op_type);
2567 SETERRNO(EBADF,SS_IVCHAN);
2570 DIE(aTHX_ PL_no_sock_func, "shutdown");
2577 return pp_ssockopt();
2579 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2587 int optype = PL_op->op_type;
2590 unsigned int optname;
2596 if (optype == OP_GSOCKOPT)
2597 sv = sv_2mortal(NEWSV(22, 257));
2600 optname = (unsigned int) POPi;
2601 lvl = (unsigned int) POPi;
2605 if (!io || !IoIFP(io))
2608 fd = PerlIO_fileno(IoIFP(io));
2612 (void)SvPOK_only(sv);
2616 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2631 aint = (int)SvIV(sv);
2635 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2644 if (ckWARN(WARN_CLOSED))
2645 report_evil_fh(gv, io, optype);
2646 SETERRNO(EBADF,SS_IVCHAN);
2651 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2658 return pp_getpeername();
2660 DIE(aTHX_ PL_no_sock_func, "getsockname");
2668 int optype = PL_op->op_type;
2672 register IO *io = GvIOn(gv);
2675 if (!io || !IoIFP(io))
2678 sv = sv_2mortal(NEWSV(22, 257));
2679 (void)SvPOK_only(sv);
2683 fd = PerlIO_fileno(IoIFP(io));
2685 case OP_GETSOCKNAME:
2686 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2689 case OP_GETPEERNAME:
2690 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2692 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2694 static const char nowhere[] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2695 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2696 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2697 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2698 sizeof(u_short) + sizeof(struct in_addr))) {
2705 #ifdef BOGUS_GETNAME_RETURN
2706 /* Interactive Unix, getpeername() and getsockname()
2707 does not return valid namelen */
2708 if (len == BOGUS_GETNAME_RETURN)
2709 len = sizeof(struct sockaddr);
2717 if (ckWARN(WARN_CLOSED))
2718 report_evil_fh(gv, io, optype);
2719 SETERRNO(EBADF,SS_IVCHAN);
2724 DIE(aTHX_ PL_no_sock_func, "getpeername");
2743 if (PL_op->op_flags & OPf_REF) {
2745 if (PL_op->op_type == OP_LSTAT) {
2746 if (gv != PL_defgv) {
2747 if (ckWARN(WARN_IO))
2748 Perl_warner(aTHX_ packWARN(WARN_IO),
2749 "lstat() on filehandle %s", GvENAME(gv));
2750 } else if (PL_laststype != OP_LSTAT)
2751 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2755 if (gv != PL_defgv) {
2756 PL_laststype = OP_STAT;
2758 sv_setpv(PL_statname, "");
2759 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2760 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2762 if (PL_laststatval < 0) {
2763 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2764 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2770 if (SvTYPE(sv) == SVt_PVGV) {
2774 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2776 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2777 Perl_warner(aTHX_ packWARN(WARN_IO),
2778 "lstat() on filehandle %s", GvENAME(gv));
2781 sv_setpv(PL_statname, SvPV(sv,n_a));
2784 PL_laststype = PL_op->op_type;
2785 if (PL_op->op_type == OP_LSTAT)
2786 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2789 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2790 if (PL_laststatval < 0) {
2791 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2792 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2798 if (gimme != G_ARRAY) {
2799 if (gimme != G_VOID)
2800 XPUSHs(boolSV(max));
2806 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2807 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2808 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2809 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2810 #if Uid_t_size > IVSIZE
2811 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2813 # if Uid_t_sign <= 0
2814 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2816 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2819 #if Gid_t_size > IVSIZE
2820 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2822 # if Gid_t_sign <= 0
2823 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2825 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2828 #ifdef USE_STAT_RDEV
2829 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2831 PUSHs(sv_2mortal(newSVpvn("", 0)));
2833 #if Off_t_size > IVSIZE
2834 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2836 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2839 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2840 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2841 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2843 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2844 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2845 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2847 #ifdef USE_STAT_BLOCKS
2848 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2849 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2851 PUSHs(sv_2mortal(newSVpvn("", 0)));
2852 PUSHs(sv_2mortal(newSVpvn("", 0)));
2862 #if defined(HAS_ACCESS) && defined(R_OK)
2864 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2865 result = access(TOPpx, R_OK);
2880 if (cando(S_IRUSR, 0, &PL_statcache))
2889 #if defined(HAS_ACCESS) && defined(W_OK)
2891 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2892 result = access(TOPpx, W_OK);
2907 if (cando(S_IWUSR, 0, &PL_statcache))
2916 #if defined(HAS_ACCESS) && defined(X_OK)
2918 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2919 result = access(TOPpx, X_OK);
2934 if (cando(S_IXUSR, 0, &PL_statcache))
2943 #ifdef PERL_EFF_ACCESS_R_OK
2945 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2946 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2961 if (cando(S_IRUSR, 1, &PL_statcache))
2970 #ifdef PERL_EFF_ACCESS_W_OK
2972 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2973 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2988 if (cando(S_IWUSR, 1, &PL_statcache))
2997 #ifdef PERL_EFF_ACCESS_X_OK
2999 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
3000 result = PERL_EFF_ACCESS_X_OK(TOPpx);
3015 if (cando(S_IXUSR, 1, &PL_statcache))
3022 I32 result = my_stat();
3031 return pp_ftrowned();
3036 I32 result = my_stat();
3040 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3048 I32 result = my_stat();
3052 if (PL_statcache.st_size == 0)
3059 I32 result = my_stat();
3063 #if Off_t_size > IVSIZE
3064 PUSHn(PL_statcache.st_size);
3066 PUSHi(PL_statcache.st_size);
3073 I32 result = my_stat();
3077 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3083 I32 result = my_stat();
3087 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3093 I32 result = my_stat();
3097 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3103 I32 result = my_stat();
3107 if (S_ISSOCK(PL_statcache.st_mode))
3114 I32 result = my_stat();
3118 if (S_ISCHR(PL_statcache.st_mode))
3125 I32 result = my_stat();
3129 if (S_ISBLK(PL_statcache.st_mode))
3136 I32 result = my_stat();
3140 if (S_ISREG(PL_statcache.st_mode))
3147 I32 result = my_stat();
3151 if (S_ISDIR(PL_statcache.st_mode))
3158 I32 result = my_stat();
3162 if (S_ISFIFO(PL_statcache.st_mode))
3169 I32 result = my_lstat();
3173 if (S_ISLNK(PL_statcache.st_mode))
3182 I32 result = my_stat();
3186 if (PL_statcache.st_mode & S_ISUID)
3196 I32 result = my_stat();
3200 if (PL_statcache.st_mode & S_ISGID)
3210 I32 result = my_stat();
3214 if (PL_statcache.st_mode & S_ISVTX)
3225 char *tmps = Nullch;
3228 if (PL_op->op_flags & OPf_REF)
3230 else if (isGV(TOPs))
3232 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3233 gv = (GV*)SvRV(POPs);
3235 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3237 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3238 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3239 else if (tmps && isDIGIT(*tmps))
3243 if (PerlLIO_isatty(fd))
3248 #if defined(atarist) /* this will work with atariST. Configure will
3249 make guesses for other systems. */
3250 # define FILE_base(f) ((f)->_base)
3251 # define FILE_ptr(f) ((f)->_ptr)
3252 # define FILE_cnt(f) ((f)->_cnt)
3253 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3263 register STDCHAR *s;
3270 if (PL_op->op_flags & OPf_REF)
3272 else if (isGV(TOPs))
3274 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3275 gv = (GV*)SvRV(POPs);
3281 if (gv == PL_defgv) {
3283 io = GvIO(PL_statgv);
3286 goto really_filename;
3291 PL_laststatval = -1;
3292 sv_setpv(PL_statname, "");
3293 io = GvIO(PL_statgv);
3295 if (io && IoIFP(io)) {
3296 if (! PerlIO_has_base(IoIFP(io)))
3297 DIE(aTHX_ "-T and -B not implemented on filehandles");
3298 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3299 if (PL_laststatval < 0)
3301 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3302 if (PL_op->op_type == OP_FTTEXT)
3307 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3308 i = PerlIO_getc(IoIFP(io));
3310 (void)PerlIO_ungetc(IoIFP(io),i);
3312 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3314 len = PerlIO_get_bufsiz(IoIFP(io));
3315 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3316 /* sfio can have large buffers - limit to 512 */
3321 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3323 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3325 SETERRNO(EBADF,RMS_IFI);
3333 PL_laststatval = -1;
3334 PL_laststype = OP_STAT;
3335 sv_setpv(PL_statname, SvPV(sv, n_a));
3336 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3337 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3338 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3341 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3342 if (PL_laststatval < 0) {
3343 (void)PerlIO_close(fp);
3346 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3347 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3348 (void)PerlIO_close(fp);
3350 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3351 RETPUSHNO; /* special case NFS directories */
3352 RETPUSHYES; /* null file is anything */
3357 /* now scan s to look for textiness */
3358 /* XXX ASCII dependent code */
3360 #if defined(DOSISH) || defined(USEMYBINMODE)
3361 /* ignore trailing ^Z on short files */
3362 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3366 for (i = 0; i < len; i++, s++) {
3367 if (!*s) { /* null never allowed in text */
3372 else if (!(isPRINT(*s) || isSPACE(*s)))
3375 else if (*s & 128) {
3377 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3380 /* utf8 characters don't count as odd */
3381 if (UTF8_IS_START(*s)) {
3382 int ulen = UTF8SKIP(s);
3383 if (ulen < len - i) {
3385 for (j = 1; j < ulen; j++) {
3386 if (!UTF8_IS_CONTINUATION(s[j]))
3389 --ulen; /* loop does extra increment */
3399 *s != '\n' && *s != '\r' && *s != '\b' &&
3400 *s != '\t' && *s != '\f' && *s != 27)
3405 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3430 if( !tmps || !*tmps ) {
3431 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3432 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3434 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3439 deprecate("chdir('') or chdir(undef) as chdir()");
3440 tmps = SvPV(*svp, n_a);
3444 TAINT_PROPER("chdir");
3449 TAINT_PROPER("chdir");
3450 PUSHi( PerlDir_chdir(tmps) >= 0 );
3452 /* Clear the DEFAULT element of ENV so we'll get the new value
3454 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3462 dSP; dMARK; dTARGET;
3463 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3469 DIE(aTHX_ PL_no_func, "chown");
3479 TAINT_PROPER("chroot");
3480 PUSHi( chroot(tmps) >= 0 );
3483 DIE(aTHX_ PL_no_func, "chroot");
3489 dSP; dMARK; dTARGET;
3491 value = (I32)apply(PL_op->op_type, MARK, SP);
3499 dSP; dMARK; dTARGET;
3501 value = (I32)apply(PL_op->op_type, MARK, SP);
3509 dSP; dMARK; dTARGET;
3511 value = (I32)apply(PL_op->op_type, MARK, SP);
3523 char *tmps2 = POPpx;
3524 char *tmps = SvPV(TOPs, n_a);
3525 TAINT_PROPER("rename");
3527 anum = PerlLIO_rename(tmps, tmps2);
3529 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3530 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3533 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3534 (void)UNLINK(tmps2);
3535 if (!(anum = link(tmps, tmps2)))
3536 anum = UNLINK(tmps);
3549 char *tmps2 = POPpx;
3550 char *tmps = SvPV(TOPs, n_a);
3551 TAINT_PROPER("link");
3552 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3555 DIE(aTHX_ PL_no_func, "link");
3564 char *tmps2 = POPpx;
3565 char *tmps = SvPV(TOPs, n_a);
3566 TAINT_PROPER("symlink");
3567 SETi( symlink(tmps, tmps2) >= 0 );
3570 DIE(aTHX_ PL_no_func, "symlink");
3580 char buf[MAXPATHLEN];
3584 #ifndef INCOMPLETE_TAINTS
3588 len = readlink(tmps, buf, sizeof(buf) - 1);
3596 RETSETUNDEF; /* just pretend it's a normal file */
3600 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3602 S_dooneliner(pTHX_ char *cmd, char *filename)
3604 char *save_filename = filename;
3610 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3611 strcpy(cmdline, cmd);
3612 strcat(cmdline, " ");
3613 for (s = cmdline + strlen(cmdline); *filename; ) {
3618 myfp = PerlProc_popen(cmdline, "r");
3622 SV *tmpsv = sv_newmortal();
3623 /* Need to save/restore 'PL_rs' ?? */
3624 s = sv_gets(tmpsv, myfp, 0);
3625 (void)PerlProc_pclose(myfp);
3629 #ifdef HAS_SYS_ERRLIST
3634 /* you don't see this */
3636 #ifdef HAS_SYS_ERRLIST
3644 if (instr(s, errmsg)) {
3651 #define EACCES EPERM
3653 if (instr(s, "cannot make"))
3654 SETERRNO(EEXIST,RMS_FEX);
3655 else if (instr(s, "existing file"))
3656 SETERRNO(EEXIST,RMS_FEX);
3657 else if (instr(s, "ile exists"))
3658 SETERRNO(EEXIST,RMS_FEX);
3659 else if (instr(s, "non-exist"))
3660 SETERRNO(ENOENT,RMS_FNF);
3661 else if (instr(s, "does not exist"))
3662 SETERRNO(ENOENT,RMS_FNF);
3663 else if (instr(s, "not empty"))
3664 SETERRNO(EBUSY,SS_DEVOFFLINE);
3665 else if (instr(s, "cannot access"))
3666 SETERRNO(EACCES,RMS_PRV);
3668 SETERRNO(EPERM,RMS_PRV);
3671 else { /* some mkdirs return no failure indication */
3672 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3673 if (PL_op->op_type == OP_RMDIR)
3678 SETERRNO(EACCES,RMS_PRV); /* a guess */
3703 tmps = SvPV(TOPs, len);
3704 /* Different operating and file systems take differently to
3705 * trailing slashes. According to POSIX 1003.1 1996 Edition
3706 * any number of trailing slashes should be allowed.
3707 * Thusly we snip them away so that even non-conforming
3708 * systems are happy. */
3709 /* We should probably do this "filtering" for all
3710 * the functions that expect (potentially) directory names:
3711 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3712 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3713 if (len > 1 && tmps[len-1] == '/') {
3714 while (tmps[len] == '/' && len > 1)
3716 tmps = savepvn(tmps, len);
3720 TAINT_PROPER("mkdir");
3722 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3724 SETi( dooneliner("mkdir", tmps) );
3725 oldumask = PerlLIO_umask(0);
3726 PerlLIO_umask(oldumask);
3727 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3741 TAINT_PROPER("rmdir");
3743 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3745 XPUSHi( dooneliner("rmdir", tmps) );
3750 /* Directory calls. */
3754 #if defined(Direntry_t) && defined(HAS_READDIR)
3757 char *dirname = POPpx;
3759 register IO *io = GvIOn(gv);
3765 PerlDir_close(IoDIRP(io));
3766 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3772 SETERRNO(EBADF,RMS_DIR);
3775 DIE(aTHX_ PL_no_dir_func, "opendir");
3781 #if defined(Direntry_t) && defined(HAS_READDIR)
3783 #if !defined(I_DIRENT) && !defined(VMS)
3784 Direntry_t *readdir (DIR *);
3786 register Direntry_t *dp;
3788 register IO *io = GvIOn(gv);
3791 if (!io || !IoDIRP(io))
3794 if (GIMME == G_ARRAY) {
3796 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3798 sv = newSVpvn(dp->d_name, dp->d_namlen);
3800 sv = newSVpv(dp->d_name, 0);
3802 #ifndef INCOMPLETE_TAINTS
3803 if (!(IoFLAGS(io) & IOf_UNTAINT))
3806 XPUSHs(sv_2mortal(sv));
3810 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3813 sv = newSVpvn(dp->d_name, dp->d_namlen);
3815 sv = newSVpv(dp->d_name, 0);
3817 #ifndef INCOMPLETE_TAINTS
3818 if (!(IoFLAGS(io) & IOf_UNTAINT))
3821 XPUSHs(sv_2mortal(sv));
3827 SETERRNO(EBADF,RMS_ISI);
3828 if (GIMME == G_ARRAY)
3833 DIE(aTHX_ PL_no_dir_func, "readdir");
3839 #if defined(HAS_TELLDIR) || defined(telldir)
3841 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3842 /* XXX netbsd still seemed to.
3843 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3844 --JHI 1999-Feb-02 */
3845 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3846 long telldir (DIR *);
3849 register IO *io = GvIOn(gv);
3851 if (!io || !IoDIRP(io))
3854 PUSHi( PerlDir_tell(IoDIRP(io)) );
3858 SETERRNO(EBADF,RMS_ISI);
3861 DIE(aTHX_ PL_no_dir_func, "telldir");
3867 #if defined(HAS_SEEKDIR) || defined(seekdir)
3871 register IO *io = GvIOn(gv);
3873 if (!io || !IoDIRP(io))
3876 (void)PerlDir_seek(IoDIRP(io), along);
3881 SETERRNO(EBADF,RMS_ISI);
3884 DIE(aTHX_ PL_no_dir_func, "seekdir");
3890 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3893 register IO *io = GvIOn(gv);
3895 if (!io || !IoDIRP(io))
3898 (void)PerlDir_rewind(IoDIRP(io));
3902 SETERRNO(EBADF,RMS_ISI);
3905 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3911 #if defined(Direntry_t) && defined(HAS_READDIR)
3914 register IO *io = GvIOn(gv);
3916 if (!io || !IoDIRP(io))
3919 #ifdef VOID_CLOSEDIR
3920 PerlDir_close(IoDIRP(io));
3922 if (PerlDir_close(IoDIRP(io)) < 0) {
3923 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3932 SETERRNO(EBADF,RMS_IFI);
3935 DIE(aTHX_ PL_no_dir_func, "closedir");
3939 /* Process control. */
3949 PERL_FLUSHALL_FOR_CHILD;
3950 childpid = PerlProc_fork();
3955 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3956 SvREADONLY_off(GvSV(tmpgv));
3957 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3958 SvREADONLY_on(GvSV(tmpgv));
3960 #ifdef THREADS_HAVE_PIDS
3961 PL_ppid = (IV)getppid();
3963 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3968 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3973 PERL_FLUSHALL_FOR_CHILD;
3974 childpid = PerlProc_fork();
3980 DIE(aTHX_ PL_no_func, "fork");
3987 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3992 #ifdef PERL_OLD_SIGNALS
3993 childpid = wait4pid(-1, &argflags, 0);
3995 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
3999 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4000 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4001 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4003 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4008 DIE(aTHX_ PL_no_func, "wait");
4014 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4022 #ifdef PERL_OLD_SIGNALS
4023 childpid = wait4pid(childpid, &argflags, optype);
4025 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
4029 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4030 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4031 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4033 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4038 DIE(aTHX_ PL_no_func, "waitpid");
4044 dSP; dMARK; dORIGMARK; dTARGET;
4052 while (++MARK <= SP) {
4053 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4058 TAINT_PROPER("system");
4060 PERL_FLUSHALL_FOR_CHILD;
4061 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4066 if (PerlProc_pipe(pp) >= 0)
4068 while ((childpid = PerlProc_fork()) == -1) {
4069 if (errno != EAGAIN) {
4074 PerlLIO_close(pp[0]);
4075 PerlLIO_close(pp[1]);
4082 Sigsave_t ihand,qhand; /* place to save signals during system() */
4086 PerlLIO_close(pp[1]);
4088 rsignal_save(SIGINT, SIG_IGN, &ihand);
4089 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4092 result = wait4pid(childpid, &status, 0);
4093 } while (result == -1 && errno == EINTR);
4095 (void)rsignal_restore(SIGINT, &ihand);
4096 (void)rsignal_restore(SIGQUIT, &qhand);
4098 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4099 do_execfree(); /* free any memory child malloced on fork */
4105 while (n < sizeof(int)) {
4106 n1 = PerlLIO_read(pp[0],
4107 (void*)(((char*)&errkid)+n),
4113 PerlLIO_close(pp[0]);
4114 if (n) { /* Error */
4115 if (n != sizeof(int))
4116 DIE(aTHX_ "panic: kid popen errno read");
4117 errno = errkid; /* Propagate errno from kid */
4118 STATUS_CURRENT = -1;
4121 PUSHi(STATUS_CURRENT);
4125 PerlLIO_close(pp[0]);
4126 #if defined(HAS_FCNTL) && defined(F_SETFD)
4127 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4130 if (PL_op->op_flags & OPf_STACKED) {
4131 SV *really = *++MARK;
4132 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4134 else if (SP - MARK != 1)
4135 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4137 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4141 #else /* ! FORK or VMS or OS/2 */
4144 if (PL_op->op_flags & OPf_STACKED) {
4145 SV *really = *++MARK;
4147 value = (I32)do_aspawn(really, MARK, SP);
4149 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4152 else if (SP - MARK != 1) {
4154 value = (I32)do_aspawn(Nullsv, MARK, SP);
4156 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4160 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4162 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4164 STATUS_NATIVE_SET(value);
4167 PUSHi(result ? value : STATUS_CURRENT);
4168 #endif /* !FORK or VMS */
4174 dSP; dMARK; dORIGMARK; dTARGET;
4180 while (++MARK <= SP) {
4181 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4186 TAINT_PROPER("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 # ifdef THREADS_HAVE_PIDS
4245 XPUSHi( getppid() );
4249 DIE(aTHX_ PL_no_func, "getppid");
4265 pgrp = (I32)BSD_GETPGRP(pid);
4267 if (pid != 0 && pid != PerlProc_getpid())
4268 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4274 DIE(aTHX_ PL_no_func, "getpgrp()");
4293 TAINT_PROPER("setpgrp");
4295 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4297 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4298 || (pid != 0 && pid != PerlProc_getpid()))
4300 DIE(aTHX_ "setpgrp can't take arguments");
4302 SETi( setpgrp() >= 0 );
4303 #endif /* USE_BSDPGRP */
4306 DIE(aTHX_ PL_no_func, "setpgrp()");
4312 #ifdef HAS_GETPRIORITY
4316 SETi( getpriority(which, who) );
4319 DIE(aTHX_ PL_no_func, "getpriority()");
4325 #ifdef HAS_SETPRIORITY
4330 TAINT_PROPER("setpriority");
4331 SETi( setpriority(which, who, niceval) >= 0 );
4334 DIE(aTHX_ PL_no_func, "setpriority()");
4344 XPUSHn( time(Null(Time_t*)) );
4346 XPUSHi( time(Null(Time_t*)) );
4357 (void)PerlProc_times(&PL_timesbuf);
4359 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4360 /* struct tms, though same data */
4364 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4365 if (GIMME == G_ARRAY) {
4366 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4367 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4368 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4372 DIE(aTHX_ "times not implemented");
4373 #endif /* HAS_TIMES */
4386 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4387 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4388 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4394 when = (Time_t)SvNVx(POPs);
4396 when = (Time_t)SvIVx(POPs);
4399 if (PL_op->op_type == OP_LOCALTIME)
4400 tmbuf = localtime(&when);
4402 tmbuf = gmtime(&when);
4404 if (GIMME != G_ARRAY) {
4410 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4411 dayname[tmbuf->tm_wday],
4412 monname[tmbuf->tm_mon],
4417 tmbuf->tm_year + 1900);
4418 PUSHs(sv_2mortal(tsv));
4423 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4424 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4425 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4426 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4427 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4428 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4429 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4430 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4431 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4442 anum = alarm((unsigned int)anum);
4449 DIE(aTHX_ PL_no_func, "alarm");
4460 (void)time(&lasttime);
4465 PerlProc_sleep((unsigned int)duration);
4468 XPUSHi(when - lasttime);
4472 /* Shared memory. */
4486 return pp_shmwrite();
4491 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4492 dSP; dMARK; dTARGET;
4493 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4502 /* Message passing. */
4516 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4517 dSP; dMARK; dTARGET;
4518 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4529 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4530 dSP; dMARK; dTARGET;
4531 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4544 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4545 dSP; dMARK; dTARGET;
4546 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4553 DIE(aTHX_ "System V IPC is not implemented on this machine");
4559 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4560 dSP; dMARK; dTARGET;
4561 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4569 PUSHp(zero_but_true, ZBTLEN);
4579 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4580 dSP; dMARK; dTARGET;
4581 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4590 /* Get system info. */
4594 #ifdef HAS_GETHOSTBYNAME
4595 return pp_ghostent();
4597 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4603 #ifdef HAS_GETHOSTBYADDR
4604 return pp_ghostent();
4606 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4612 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4614 I32 which = PL_op->op_type;
4615 register char **elem;
4617 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4618 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4619 struct hostent *gethostbyname(Netdb_name_t);
4620 struct hostent *gethostent(void);
4622 struct hostent *hent;
4627 if (which == OP_GHBYNAME) {
4628 #ifdef HAS_GETHOSTBYNAME
4629 char* name = POPpbytex;
4630 hent = PerlSock_gethostbyname(name);
4632 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4635 else if (which == OP_GHBYADDR) {
4636 #ifdef HAS_GETHOSTBYADDR
4637 int addrtype = POPi;
4640 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4642 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4644 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4648 #ifdef HAS_GETHOSTENT
4649 hent = PerlSock_gethostent();
4651 DIE(aTHX_ PL_no_sock_func, "gethostent");
4654 #ifdef HOST_NOT_FOUND
4656 #ifdef USE_REENTRANT_API
4657 # ifdef USE_GETHOSTENT_ERRNO
4658 h_errno = PL_reentrant_buffer->_gethostent_errno;
4661 STATUS_NATIVE_SET(h_errno);
4665 if (GIMME != G_ARRAY) {
4666 PUSHs(sv = sv_newmortal());
4668 if (which == OP_GHBYNAME) {
4670 sv_setpvn(sv, hent->h_addr, hent->h_length);
4673 sv_setpv(sv, (char*)hent->h_name);
4679 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4680 sv_setpv(sv, (char*)hent->h_name);
4681 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4682 for (elem = hent->h_aliases; elem && *elem; elem++) {
4683 sv_catpv(sv, *elem);
4685 sv_catpvn(sv, " ", 1);
4687 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4688 sv_setiv(sv, (IV)hent->h_addrtype);
4689 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4690 len = hent->h_length;
4691 sv_setiv(sv, (IV)len);
4693 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4694 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4695 sv_setpvn(sv, *elem, len);
4698 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4700 sv_setpvn(sv, hent->h_addr, len);
4705 DIE(aTHX_ PL_no_sock_func, "gethostent");
4711 #ifdef HAS_GETNETBYNAME
4712 return pp_gnetent();
4714 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4720 #ifdef HAS_GETNETBYADDR
4721 return pp_gnetent();
4723 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4729 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4731 I32 which = PL_op->op_type;
4732 register char **elem;
4734 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4735 struct netent *getnetbyaddr(Netdb_net_t, int);
4736 struct netent *getnetbyname(Netdb_name_t);
4737 struct netent *getnetent(void);
4739 struct netent *nent;
4742 if (which == OP_GNBYNAME){
4743 #ifdef HAS_GETNETBYNAME
4744 char *name = POPpbytex;
4745 nent = PerlSock_getnetbyname(name);
4747 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4750 else if (which == OP_GNBYADDR) {
4751 #ifdef HAS_GETNETBYADDR
4752 int addrtype = POPi;
4753 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4754 nent = PerlSock_getnetbyaddr(addr, addrtype);
4756 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4760 #ifdef HAS_GETNETENT
4761 nent = PerlSock_getnetent();
4763 DIE(aTHX_ PL_no_sock_func, "getnetent");
4766 #ifdef HOST_NOT_FOUND
4768 #ifdef USE_REENTRANT_API
4769 # ifdef USE_GETNETENT_ERRNO
4770 h_errno = PL_reentrant_buffer->_getnetent_errno;
4773 STATUS_NATIVE_SET(h_errno);
4778 if (GIMME != G_ARRAY) {
4779 PUSHs(sv = sv_newmortal());
4781 if (which == OP_GNBYNAME)
4782 sv_setiv(sv, (IV)nent->n_net);
4784 sv_setpv(sv, nent->n_name);
4790 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4791 sv_setpv(sv, nent->n_name);
4792 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4793 for (elem = nent->n_aliases; elem && *elem; elem++) {
4794 sv_catpv(sv, *elem);
4796 sv_catpvn(sv, " ", 1);
4798 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4799 sv_setiv(sv, (IV)nent->n_addrtype);
4800 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4801 sv_setiv(sv, (IV)nent->n_net);
4806 DIE(aTHX_ PL_no_sock_func, "getnetent");
4812 #ifdef HAS_GETPROTOBYNAME
4813 return pp_gprotoent();
4815 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4821 #ifdef HAS_GETPROTOBYNUMBER
4822 return pp_gprotoent();
4824 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4830 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4832 I32 which = PL_op->op_type;
4833 register char **elem;
4835 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4836 struct protoent *getprotobyname(Netdb_name_t);
4837 struct protoent *getprotobynumber(int);
4838 struct protoent *getprotoent(void);
4840 struct protoent *pent;
4843 if (which == OP_GPBYNAME) {
4844 #ifdef HAS_GETPROTOBYNAME
4845 char* name = POPpbytex;
4846 pent = PerlSock_getprotobyname(name);
4848 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4851 else if (which == OP_GPBYNUMBER) {
4852 #ifdef HAS_GETPROTOBYNUMBER
4854 pent = PerlSock_getprotobynumber(number);
4856 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4860 #ifdef HAS_GETPROTOENT
4861 pent = PerlSock_getprotoent();
4863 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4867 if (GIMME != G_ARRAY) {
4868 PUSHs(sv = sv_newmortal());
4870 if (which == OP_GPBYNAME)
4871 sv_setiv(sv, (IV)pent->p_proto);
4873 sv_setpv(sv, pent->p_name);
4879 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4880 sv_setpv(sv, pent->p_name);
4881 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4882 for (elem = pent->p_aliases; elem && *elem; elem++) {
4883 sv_catpv(sv, *elem);
4885 sv_catpvn(sv, " ", 1);
4887 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4888 sv_setiv(sv, (IV)pent->p_proto);
4893 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4899 #ifdef HAS_GETSERVBYNAME
4900 return pp_gservent();
4902 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4908 #ifdef HAS_GETSERVBYPORT
4909 return pp_gservent();
4911 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4917 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4919 I32 which = PL_op->op_type;
4920 register char **elem;
4922 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4923 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4924 struct servent *getservbyport(int, Netdb_name_t);
4925 struct servent *getservent(void);
4927 struct servent *sent;
4930 if (which == OP_GSBYNAME) {
4931 #ifdef HAS_GETSERVBYNAME
4932 char *proto = POPpbytex;
4933 char *name = POPpbytex;
4935 if (proto && !*proto)
4938 sent = PerlSock_getservbyname(name, proto);
4940 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4943 else if (which == OP_GSBYPORT) {
4944 #ifdef HAS_GETSERVBYPORT
4945 char *proto = POPpbytex;
4946 unsigned short port = (unsigned short)POPu;
4949 port = PerlSock_htons(port);
4951 sent = PerlSock_getservbyport(port, proto);
4953 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4957 #ifdef HAS_GETSERVENT
4958 sent = PerlSock_getservent();
4960 DIE(aTHX_ PL_no_sock_func, "getservent");
4964 if (GIMME != G_ARRAY) {
4965 PUSHs(sv = sv_newmortal());
4967 if (which == OP_GSBYNAME) {
4969 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4971 sv_setiv(sv, (IV)(sent->s_port));
4975 sv_setpv(sv, sent->s_name);
4981 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4982 sv_setpv(sv, sent->s_name);
4983 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4984 for (elem = sent->s_aliases; elem && *elem; elem++) {
4985 sv_catpv(sv, *elem);
4987 sv_catpvn(sv, " ", 1);
4989 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4991 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4993 sv_setiv(sv, (IV)(sent->s_port));
4995 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4996 sv_setpv(sv, sent->s_proto);
5001 DIE(aTHX_ PL_no_sock_func, "getservent");
5007 #ifdef HAS_SETHOSTENT
5009 PerlSock_sethostent(TOPi);
5012 DIE(aTHX_ PL_no_sock_func, "sethostent");
5018 #ifdef HAS_SETNETENT
5020 PerlSock_setnetent(TOPi);
5023 DIE(aTHX_ PL_no_sock_func, "setnetent");
5029 #ifdef HAS_SETPROTOENT
5031 PerlSock_setprotoent(TOPi);
5034 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5040 #ifdef HAS_SETSERVENT
5042 PerlSock_setservent(TOPi);
5045 DIE(aTHX_ PL_no_sock_func, "setservent");
5051 #ifdef HAS_ENDHOSTENT
5053 PerlSock_endhostent();
5057 DIE(aTHX_ PL_no_sock_func, "endhostent");
5063 #ifdef HAS_ENDNETENT
5065 PerlSock_endnetent();
5069 DIE(aTHX_ PL_no_sock_func, "endnetent");
5075 #ifdef HAS_ENDPROTOENT
5077 PerlSock_endprotoent();
5081 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5087 #ifdef HAS_ENDSERVENT
5089 PerlSock_endservent();
5093 DIE(aTHX_ PL_no_sock_func, "endservent");
5102 DIE(aTHX_ PL_no_func, "getpwnam");
5111 DIE(aTHX_ PL_no_func, "getpwuid");
5119 I32 which = PL_op->op_type;
5122 struct passwd *pwent = NULL;
5124 * We currently support only the SysV getsp* shadow password interface.
5125 * The interface is declared in <shadow.h> and often one needs to link
5126 * with -lsecurity or some such.
5127 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5130 * AIX getpwnam() is clever enough to return the encrypted password
5131 * only if the caller (euid?) is root.
5133 * There are at least two other shadow password APIs. Many platforms
5134 * seem to contain more than one interface for accessing the shadow
5135 * password databases, possibly for compatibility reasons.
5136 * The getsp*() is by far he simplest one, the other two interfaces
5137 * are much more complicated, but also very similar to each other.
5142 * struct pr_passwd *getprpw*();
5143 * The password is in
5144 * char getprpw*(...).ufld.fd_encrypt[]
5145 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5150 * struct es_passwd *getespw*();
5151 * The password is in
5152 * char *(getespw*(...).ufld.fd_encrypt)
5153 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5155 * Mention I_PROT here so that Configure probes for it.
5157 * In HP-UX for getprpw*() the manual page claims that one should include
5158 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5159 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5160 * and pp_sys.c already includes <shadow.h> if there is such.
5162 * Note that <sys/security.h> is already probed for, but currently
5163 * it is only included in special cases.
5165 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5166 * be preferred interface, even though also the getprpw*() interface
5167 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5168 * One also needs to call set_auth_parameters() in main() before
5169 * doing anything else, whether one is using getespw*() or getprpw*().
5171 * Note that accessing the shadow databases can be magnitudes
5172 * slower than accessing the standard databases.
5180 char* name = POPpbytex;
5181 pwent = getpwnam(name);
5187 pwent = getpwuid(uid);
5191 # ifdef HAS_GETPWENT
5193 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5194 if (pwent) pwent = getpwnam(pwent->pw_name);
5197 DIE(aTHX_ PL_no_func, "getpwent");
5203 if (GIMME != G_ARRAY) {
5204 PUSHs(sv = sv_newmortal());
5206 if (which == OP_GPWNAM)
5207 # if Uid_t_sign <= 0
5208 sv_setiv(sv, (IV)pwent->pw_uid);
5210 sv_setuv(sv, (UV)pwent->pw_uid);
5213 sv_setpv(sv, pwent->pw_name);
5219 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5220 sv_setpv(sv, pwent->pw_name);
5222 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5224 /* If we have getspnam(), we try to dig up the shadow
5225 * password. If we are underprivileged, the shadow
5226 * interface will set the errno to EACCES or similar,
5227 * and return a null pointer. If this happens, we will
5228 * use the dummy password (usually "*" or "x") from the
5229 * standard password database.
5231 * In theory we could skip the shadow call completely
5232 * if euid != 0 but in practice we cannot know which
5233 * security measures are guarding the shadow databases
5234 * on a random platform.
5236 * Resist the urge to use additional shadow interfaces.
5237 * Divert the urge to writing an extension instead.
5240 # ifdef HAS_GETSPNAM
5242 struct spwd *spwent;
5243 int saverrno; /* Save and restore errno so that
5244 * underprivileged attempts seem
5245 * to have never made the unsccessful
5246 * attempt to retrieve the shadow password. */
5249 spwent = getspnam(pwent->pw_name);
5251 if (spwent && spwent->sp_pwdp)
5252 sv_setpv(sv, spwent->sp_pwdp);
5256 if (!SvPOK(sv)) /* Use the standard password, then. */
5257 sv_setpv(sv, pwent->pw_passwd);
5260 # ifndef INCOMPLETE_TAINTS
5261 /* passwd is tainted because user himself can diddle with it.
5262 * admittedly not much and in a very limited way, but nevertheless. */
5266 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5267 # if Uid_t_sign <= 0
5268 sv_setiv(sv, (IV)pwent->pw_uid);
5270 sv_setuv(sv, (UV)pwent->pw_uid);
5273 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5274 # if Uid_t_sign <= 0
5275 sv_setiv(sv, (IV)pwent->pw_gid);
5277 sv_setuv(sv, (UV)pwent->pw_gid);
5279 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5280 * because of the poor interface of the Perl getpw*(),
5281 * not because there's some standard/convention saying so.
5282 * A better interface would have been to return a hash,
5283 * but we are accursed by our history, alas. --jhi. */
5284 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5286 sv_setiv(sv, (IV)pwent->pw_change);
5289 sv_setiv(sv, (IV)pwent->pw_quota);
5292 sv_setpv(sv, pwent->pw_age);
5297 /* pw_class and pw_comment are mutually exclusive--.
5298 * see the above note for pw_change, pw_quota, and pw_age. */
5299 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5301 sv_setpv(sv, pwent->pw_class);
5304 sv_setpv(sv, pwent->pw_comment);
5308 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5310 sv_setpv(sv, pwent->pw_gecos);
5312 # ifndef INCOMPLETE_TAINTS
5313 /* pw_gecos is tainted because user himself can diddle with it. */
5317 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5318 sv_setpv(sv, pwent->pw_dir);
5320 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5321 sv_setpv(sv, pwent->pw_shell);
5322 # ifndef INCOMPLETE_TAINTS
5323 /* pw_shell is tainted because user himself can diddle with it. */
5328 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5329 sv_setiv(sv, (IV)pwent->pw_expire);
5334 DIE(aTHX_ PL_no_func, "getpwent");
5340 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5345 DIE(aTHX_ PL_no_func, "setpwent");
5351 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5356 DIE(aTHX_ PL_no_func, "endpwent");
5365 DIE(aTHX_ PL_no_func, "getgrnam");
5374 DIE(aTHX_ PL_no_func, "getgrgid");
5382 I32 which = PL_op->op_type;
5383 register char **elem;
5385 struct group *grent;
5388 if (which == OP_GGRNAM) {
5389 char* name = POPpbytex;
5390 grent = (struct group *)getgrnam(name);
5392 else if (which == OP_GGRGID) {
5394 grent = (struct group *)getgrgid(gid);
5398 grent = (struct group *)getgrent();
5400 DIE(aTHX_ PL_no_func, "getgrent");
5404 if (GIMME != G_ARRAY) {
5405 PUSHs(sv = sv_newmortal());
5407 if (which == OP_GGRNAM)
5408 sv_setiv(sv, (IV)grent->gr_gid);
5410 sv_setpv(sv, grent->gr_name);
5416 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5417 sv_setpv(sv, grent->gr_name);
5419 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5421 sv_setpv(sv, grent->gr_passwd);
5424 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5425 sv_setiv(sv, (IV)grent->gr_gid);
5427 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5428 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5429 /* In UNICOS/mk (_CRAYMPP) the multithreading
5430 * versions (getgrnam_r, getgrgid_r)
5431 * seem to return an illegal pointer
5432 * as the group members list, gr_mem.
5433 * getgrent() doesn't even have a _r version
5434 * but the gr_mem is poisonous anyway.
5435 * So yes, you cannot get the list of group
5436 * members if building multithreaded in UNICOS/mk. */
5437 for (elem = grent->gr_mem; elem && *elem; elem++) {
5438 sv_catpv(sv, *elem);
5440 sv_catpvn(sv, " ", 1);
5447 DIE(aTHX_ PL_no_func, "getgrent");
5453 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5458 DIE(aTHX_ PL_no_func, "setgrent");
5464 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5469 DIE(aTHX_ PL_no_func, "endgrent");
5479 if (!(tmps = PerlProc_getlogin()))
5481 PUSHp(tmps, strlen(tmps));
5484 DIE(aTHX_ PL_no_func, "getlogin");
5488 /* Miscellaneous. */
5493 dSP; dMARK; dORIGMARK; dTARGET;
5494 register I32 items = SP - MARK;
5495 unsigned long a[20];
5501 while (++MARK <= SP) {
5502 if (SvTAINTED(*MARK)) {
5508 TAINT_PROPER("syscall");
5511 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5512 * or where sizeof(long) != sizeof(char*). But such machines will
5513 * not likely have syscall implemented either, so who cares?
5515 while (++MARK <= SP) {
5516 if (SvNIOK(*MARK) || !i)
5517 a[i++] = SvIV(*MARK);
5518 else if (*MARK == &PL_sv_undef)
5521 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5527 DIE(aTHX_ "Too many args to syscall");
5529 DIE(aTHX_ "Too few args to syscall");
5531 retval = syscall(a[0]);
5534 retval = syscall(a[0],a[1]);
5537 retval = syscall(a[0],a[1],a[2]);
5540 retval = syscall(a[0],a[1],a[2],a[3]);
5543 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5546 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5549 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5552 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5556 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5559 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5562 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5566 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5570 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5574 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5575 a[10],a[11],a[12],a[13]);
5577 #endif /* atarist */
5583 DIE(aTHX_ PL_no_func, "syscall");
5587 #ifdef FCNTL_EMULATE_FLOCK
5589 /* XXX Emulate flock() with fcntl().
5590 What's really needed is a good file locking module.
5594 fcntl_emulate_flock(int fd, int operation)
5598 switch (operation & ~LOCK_NB) {
5600 flock.l_type = F_RDLCK;
5603 flock.l_type = F_WRLCK;
5606 flock.l_type = F_UNLCK;
5612 flock.l_whence = SEEK_SET;
5613 flock.l_start = flock.l_len = (Off_t)0;
5615 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5618 #endif /* FCNTL_EMULATE_FLOCK */
5620 #ifdef LOCKF_EMULATE_FLOCK
5622 /* XXX Emulate flock() with lockf(). This is just to increase
5623 portability of scripts. The calls are not completely
5624 interchangeable. What's really needed is a good file
5628 /* The lockf() constants might have been defined in <unistd.h>.
5629 Unfortunately, <unistd.h> causes troubles on some mixed
5630 (BSD/POSIX) systems, such as SunOS 4.1.3.
5632 Further, the lockf() constants aren't POSIX, so they might not be
5633 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5634 just stick in the SVID values and be done with it. Sigh.
5638 # define F_ULOCK 0 /* Unlock a previously locked region */
5641 # define F_LOCK 1 /* Lock a region for exclusive use */
5644 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5647 # define F_TEST 3 /* Test a region for other processes locks */
5651 lockf_emulate_flock(int fd, int operation)
5657 /* flock locks entire file so for lockf we need to do the same */
5659 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5660 if (pos > 0) /* is seekable and needs to be repositioned */
5661 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5662 pos = -1; /* seek failed, so don't seek back afterwards */
5665 switch (operation) {
5667 /* LOCK_SH - get a shared lock */
5669 /* LOCK_EX - get an exclusive lock */
5671 i = lockf (fd, F_LOCK, 0);
5674 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5675 case LOCK_SH|LOCK_NB:
5676 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5677 case LOCK_EX|LOCK_NB:
5678 i = lockf (fd, F_TLOCK, 0);
5680 if ((errno == EAGAIN) || (errno == EACCES))
5681 errno = EWOULDBLOCK;
5684 /* LOCK_UN - unlock (non-blocking is a no-op) */
5686 case LOCK_UN|LOCK_NB:
5687 i = lockf (fd, F_ULOCK, 0);
5690 /* Default - can't decipher operation */
5697 if (pos > 0) /* need to restore position of the handle */
5698 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5703 #endif /* LOCKF_EMULATE_FLOCK */