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;
768 switch(SvTYPE(varsv)) {
770 methname = "TIEHASH";
771 HvEITER((HV *)varsv) = Null(HE *);
774 methname = "TIEARRAY";
777 #ifdef GV_UNIQUE_CHECK
778 if (GvUNIQUE((GV*)varsv)) {
779 Perl_croak(aTHX_ "Attempt to tie unique GV");
782 methname = "TIEHANDLE";
783 how = PERL_MAGIC_tiedscalar;
784 /* For tied filehandles, we apply tiedscalar magic to the IO
785 slot of the GP rather than the GV itself. AMS 20010812 */
787 GvIOp(varsv) = newIO();
788 varsv = (SV *)GvIOp(varsv);
791 methname = "TIESCALAR";
792 how = PERL_MAGIC_tiedscalar;
796 if (sv_isobject(*MARK)) {
798 PUSHSTACKi(PERLSI_MAGIC);
800 EXTEND(SP,(I32)items);
804 call_method(methname, G_SCALAR);
807 /* Not clear why we don't call call_method here too.
808 * perhaps to get different error message ?
810 stash = gv_stashsv(*MARK, FALSE);
811 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
812 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
813 methname, SvPV(*MARK,n_a));
816 PUSHSTACKi(PERLSI_MAGIC);
818 EXTEND(SP,(I32)items);
822 call_sv((SV*)GvCV(gv), G_SCALAR);
828 if (sv_isobject(sv)) {
829 sv_unmagic(varsv, how);
830 /* Croak if a self-tie on an aggregate is attempted. */
831 if (varsv == SvRV(sv) &&
832 (SvTYPE(varsv) == SVt_PVAV ||
833 SvTYPE(varsv) == SVt_PVHV))
835 "Self-ties of arrays and hashes are not supported");
836 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
839 SP = PL_stack_base + markoff;
849 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
850 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
852 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
855 if ((mg = SvTIED_mg(sv, how))) {
856 SV *obj = SvRV(mg->mg_obj);
860 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
861 isGV(gv) && (cv = GvCV(gv))) {
863 XPUSHs(SvTIED_obj((SV*)gv, mg));
864 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
867 call_sv((SV *)cv, G_VOID);
871 else if (ckWARN(WARN_UNTIE)) {
872 if (mg && SvREFCNT(obj) > 1)
873 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
874 "untie attempted while %"UVuf" inner references still exist",
875 (UV)SvREFCNT(obj) - 1 ) ;
878 sv_unmagic(sv, how) ;
888 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
889 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
891 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
894 if ((mg = SvTIED_mg(sv, how))) {
895 SV *osv = SvTIED_obj(sv, mg);
896 if (osv == mg->mg_obj)
897 osv = sv_mortalcopy(osv);
915 sv = sv_mortalcopy(&PL_sv_no);
916 sv_setpv(sv, "AnyDBM_File");
917 stash = gv_stashsv(sv, FALSE);
918 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
920 require_pv("AnyDBM_File.pm");
922 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
923 DIE(aTHX_ "No dbm on this machine");
933 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
935 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
938 call_sv((SV*)GvCV(gv), G_SCALAR);
941 if (!sv_isobject(TOPs)) {
946 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
949 call_sv((SV*)GvCV(gv), G_SCALAR);
953 if (sv_isobject(TOPs)) {
954 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
955 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
977 struct timeval timebuf;
978 struct timeval *tbuf = &timebuf;
982 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
987 # if BYTEORDER & 0xf0000
988 # define ORDERBYTE (0x88888888 - BYTEORDER)
990 # define ORDERBYTE (0x4444 - BYTEORDER)
996 for (i = 1; i <= 3; i++) {
1004 /* little endians can use vecs directly */
1005 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1012 masksize = NFDBITS / NBBY;
1014 masksize = sizeof(long); /* documented int, everyone seems to use long */
1016 Zero(&fd_sets[0], 4, char*);
1019 # if SELECT_MIN_BITS > 1
1020 /* If SELECT_MIN_BITS is greater than one we most probably will want
1021 * to align the sizes with SELECT_MIN_BITS/8 because for example
1022 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1023 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1024 * on (sets/tests/clears bits) is 32 bits. */
1025 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1027 growsize = sizeof(fd_set);
1035 timebuf.tv_sec = (long)value;
1036 value -= (NV)timebuf.tv_sec;
1037 timebuf.tv_usec = (long)(value * 1000000.0);
1040 tbuf = Null(struct timeval*);
1042 for (i = 1; i <= 3; i++) {
1048 else if (!SvPOK(sv))
1049 SvPV_force(sv,n_a); /* force string conversion */
1052 Sv_Grow(sv, growsize);
1056 while (++j <= growsize) {
1060 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1062 New(403, fd_sets[i], growsize, char);
1063 for (offset = 0; offset < growsize; offset += masksize) {
1064 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1065 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1068 fd_sets[i] = SvPVX(sv);
1072 nfound = PerlSock_select(
1074 (Select_fd_set_t) fd_sets[1],
1075 (Select_fd_set_t) fd_sets[2],
1076 (Select_fd_set_t) fd_sets[3],
1078 for (i = 1; i <= 3; i++) {
1081 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1083 for (offset = 0; offset < growsize; offset += masksize) {
1084 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1085 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1087 Safefree(fd_sets[i]);
1094 if (GIMME == G_ARRAY && tbuf) {
1095 value = (NV)(timebuf.tv_sec) +
1096 (NV)(timebuf.tv_usec) / 1000000.0;
1097 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1098 sv_setnv(sv, value);
1102 DIE(aTHX_ "select not implemented");
1107 Perl_setdefout(pTHX_ GV *gv)
1110 (void)SvREFCNT_inc(gv);
1112 SvREFCNT_dec(PL_defoutgv);
1119 GV *newdefout, *egv;
1122 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1124 egv = GvEGV(PL_defoutgv);
1129 XPUSHs(&PL_sv_undef);
1131 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1132 if (gvp && *gvp == egv) {
1133 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1137 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1142 if (!GvIO(newdefout))
1143 gv_IOadd(newdefout);
1144 setdefout(newdefout);
1162 if (gv && (io = GvIO(gv))
1163 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1165 I32 gimme = GIMME_V;
1167 XPUSHs(SvTIED_obj((SV*)io, mg));
1170 call_method("GETC", gimme);
1173 if (gimme == G_SCALAR)
1174 SvSetMagicSV_nosteal(TARG, TOPs);
1177 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1178 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1179 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1180 report_evil_fh(gv, io, PL_op->op_type);
1181 SETERRNO(EBADF,RMS_IFI);
1185 sv_setpv(TARG, " ");
1186 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1187 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1188 /* Find out how many bytes the char needs */
1189 Size_t len = UTF8SKIP(SvPVX(TARG));
1192 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1193 SvCUR_set(TARG,1+len);
1203 return pp_sysread();
1207 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1209 register PERL_CONTEXT *cx;
1210 I32 gimme = GIMME_V;
1216 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1218 PAD_SET_CUR(CvPADLIST(cv), 1);
1220 setdefout(gv); /* locally select filehandle so $% et al work */
1253 SV *tmpsv = sv_newmortal();
1254 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1255 name = SvPV_nolen(tmpsv);
1258 DIE(aTHX_ "Undefined format \"%s\" called", name);
1259 DIE(aTHX_ "Not a format reference");
1262 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1264 IoFLAGS(io) &= ~IOf_DIDTOP;
1265 return doform(cv,gv,PL_op->op_next);
1271 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1272 register IO *io = GvIOp(gv);
1273 PerlIO *ofp = IoOFP(io);
1277 register PERL_CONTEXT *cx;
1279 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1280 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1283 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1284 PL_formtarget != PL_toptarget)
1288 if (!IoTOP_GV(io)) {
1292 if (!IoTOP_NAME(io)) {
1293 if (!IoFMT_NAME(io))
1294 IoFMT_NAME(io) = savepv(GvNAME(gv));
1295 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1296 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1297 if ((topgv && GvFORM(topgv)) ||
1298 !gv_fetchpv("top",FALSE,SVt_PVFM))
1299 IoTOP_NAME(io) = savepv(SvPVX(topname));
1301 IoTOP_NAME(io) = savepv("top");
1303 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1304 if (!topgv || !GvFORM(topgv)) {
1305 IoLINES_LEFT(io) = 100000000;
1308 IoTOP_GV(io) = topgv;
1310 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1311 I32 lines = IoLINES_LEFT(io);
1312 char *s = SvPVX(PL_formtarget);
1313 if (lines <= 0) /* Yow, header didn't even fit!!! */
1315 while (lines-- > 0) {
1316 s = strchr(s, '\n');
1322 STRLEN save = SvCUR(PL_formtarget);
1323 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1324 do_print(PL_formtarget, ofp);
1325 SvCUR_set(PL_formtarget, save);
1326 sv_chop(PL_formtarget, s);
1327 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1330 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1331 do_print(PL_formfeed, ofp);
1332 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1334 PL_formtarget = PL_toptarget;
1335 IoFLAGS(io) |= IOf_DIDTOP;
1338 DIE(aTHX_ "bad top format reference");
1343 SV *sv = sv_newmortal();
1344 gv_efullname4(sv, fgv, Nullch, FALSE);
1345 name = SvPV_nolen(sv);
1348 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1351 DIE(aTHX_ "Undefined top format called");
1355 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1356 return doform(cv,gv,PL_op);
1360 POPBLOCK(cx,PL_curpm);
1366 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1368 /* integrate with report_evil_fh()? */
1371 SV* sv = sv_newmortal();
1372 gv_efullname4(sv, gv, Nullch, FALSE);
1373 name = SvPV_nolen(sv);
1376 Perl_warner(aTHX_ packWARN(WARN_IO),
1377 "Filehandle %s opened only for input", name);
1379 Perl_warner(aTHX_ packWARN(WARN_IO),
1380 "Filehandle opened only for input");
1382 else if (ckWARN(WARN_CLOSED))
1383 report_evil_fh(gv, io, PL_op->op_type);
1388 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1389 if (ckWARN(WARN_IO))
1390 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1392 if (!do_print(PL_formtarget, fp))
1395 FmLINES(PL_formtarget) = 0;
1396 SvCUR_set(PL_formtarget, 0);
1397 *SvEND(PL_formtarget) = '\0';
1398 if (IoFLAGS(io) & IOf_FLUSH)
1399 (void)PerlIO_flush(fp);
1404 PL_formtarget = PL_bodytarget;
1406 return pop_return();
1411 dSP; dMARK; dORIGMARK;
1418 if (PL_op->op_flags & OPf_STACKED)
1423 if (gv && (io = GvIO(gv))
1424 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1426 if (MARK == ORIGMARK) {
1429 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1433 *MARK = SvTIED_obj((SV*)io, mg);
1436 call_method("PRINTF", G_SCALAR);
1439 MARK = ORIGMARK + 1;
1446 if (!(io = GvIO(gv))) {
1447 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1448 report_evil_fh(gv, io, PL_op->op_type);
1449 SETERRNO(EBADF,RMS_IFI);
1452 else if (!(fp = IoOFP(io))) {
1453 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1454 /* integrate with report_evil_fh()? */
1458 gv_efullname4(sv, gv, Nullch, FALSE);
1459 name = SvPV_nolen(sv);
1462 Perl_warner(aTHX_ packWARN(WARN_IO),
1463 "Filehandle %s opened only for input", name);
1465 Perl_warner(aTHX_ packWARN(WARN_IO),
1466 "Filehandle opened only for input");
1468 else if (ckWARN(WARN_CLOSED))
1469 report_evil_fh(gv, io, PL_op->op_type);
1471 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1475 do_sprintf(sv, SP - MARK, MARK + 1);
1476 if (!do_print(sv, fp))
1479 if (IoFLAGS(io) & IOf_FLUSH)
1480 if (PerlIO_flush(fp) == EOF)
1491 PUSHs(&PL_sv_undef);
1512 /* Need TIEHANDLE method ? */
1514 tmps = SvPV(sv, len);
1515 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1516 IoLINES(GvIOp(gv)) = 0;
1520 PUSHs(&PL_sv_undef);
1527 dSP; dMARK; dORIGMARK; dTARGET;
1534 Sock_size_t bufsize;
1541 bool charstart = FALSE;
1542 STRLEN charskip = 0;
1546 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1547 && gv && (io = GvIO(gv))
1548 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1553 *MARK = SvTIED_obj((SV*)io, mg);
1555 call_method("READ", G_SCALAR);
1568 sv_setpvn(bufsv, "", 0);
1569 length = SvIVx(*++MARK);
1572 offset = SvIVx(*++MARK);
1576 if (!io || !IoIFP(io)) {
1577 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1578 report_evil_fh(gv, io, PL_op->op_type);
1579 SETERRNO(EBADF,RMS_IFI);
1582 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1583 buffer = SvPVutf8_force(bufsv, blen);
1584 /* UTF8 may not have been set if they are all low bytes */
1588 buffer = SvPV_force(bufsv, blen);
1591 DIE(aTHX_ "Negative length");
1599 if (PL_op->op_type == OP_RECV) {
1600 char namebuf[MAXPATHLEN];
1601 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1602 bufsize = sizeof (struct sockaddr_in);
1604 bufsize = sizeof namebuf;
1606 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1610 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1611 /* 'offset' means 'flags' here */
1612 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1613 (struct sockaddr *)namebuf, &bufsize);
1617 /* Bogus return without padding */
1618 bufsize = sizeof (struct sockaddr_in);
1620 SvCUR_set(bufsv, count);
1621 *SvEND(bufsv) = '\0';
1622 (void)SvPOK_only(bufsv);
1626 /* This should not be marked tainted if the fp is marked clean */
1627 if (!(IoFLAGS(io) & IOf_UNTAINT))
1628 SvTAINTED_on(bufsv);
1630 sv_setpvn(TARG, namebuf, bufsize);
1635 if (PL_op->op_type == OP_RECV)
1636 DIE(aTHX_ PL_no_sock_func, "recv");
1638 if (DO_UTF8(bufsv)) {
1639 /* offset adjust in characters not bytes */
1640 blen = sv_len_utf8(bufsv);
1643 if (-offset > (int)blen)
1644 DIE(aTHX_ "Offset outside string");
1647 if (DO_UTF8(bufsv)) {
1648 /* convert offset-as-chars to offset-as-bytes */
1649 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1652 bufsize = SvCUR(bufsv);
1653 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1654 if (offset > bufsize) { /* Zero any newly allocated space */
1655 Zero(buffer+bufsize, offset-bufsize, char);
1657 buffer = buffer + offset;
1659 if (PL_op->op_type == OP_SYSREAD) {
1660 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1661 if (IoTYPE(io) == IoTYPE_SOCKET) {
1662 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1668 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1673 #ifdef HAS_SOCKET__bad_code_maybe
1674 if (IoTYPE(io) == IoTYPE_SOCKET) {
1675 char namebuf[MAXPATHLEN];
1676 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1677 bufsize = sizeof (struct sockaddr_in);
1679 bufsize = sizeof namebuf;
1681 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1682 (struct sockaddr *)namebuf, &bufsize);
1687 count = PerlIO_read(IoIFP(io), buffer, length);
1688 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1689 if (count == 0 && PerlIO_error(IoIFP(io)))
1693 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1695 /* integrate with report_evil_fh()? */
1698 SV* sv = sv_newmortal();
1699 gv_efullname4(sv, gv, Nullch, FALSE);
1700 name = SvPV_nolen(sv);
1703 Perl_warner(aTHX_ packWARN(WARN_IO),
1704 "Filehandle %s opened only for output", name);
1706 Perl_warner(aTHX_ packWARN(WARN_IO),
1707 "Filehandle opened only for output");
1711 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1712 *SvEND(bufsv) = '\0';
1713 (void)SvPOK_only(bufsv);
1714 if (fp_utf8 && !IN_BYTES) {
1715 /* Look at utf8 we got back and count the characters */
1716 char *bend = buffer + count;
1717 while (buffer < bend) {
1719 skip = UTF8SKIP(buffer);
1722 if (buffer - charskip + skip > bend) {
1723 /* partial character - try for rest of it */
1724 length = skip - (bend-buffer);
1725 offset = bend - SvPVX(bufsv);
1737 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1738 provided amount read (count) was what was requested (length)
1740 if (got < wanted && count == length) {
1741 length = wanted - got;
1742 offset = bend - SvPVX(bufsv);
1745 /* return value is character count */
1750 /* This should not be marked tainted if the fp is marked clean */
1751 if (!(IoFLAGS(io) & IOf_UNTAINT))
1752 SvTAINTED_on(bufsv);
1765 int items = (SP - PL_stack_base) - TOPMARK;
1769 sv = sv_2mortal(newSViv(sv_len(*SP)));
1778 dSP; dMARK; dORIGMARK; dTARGET;
1789 if (PL_op->op_type == OP_SYSWRITE
1790 && gv && (io = GvIO(gv))
1791 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1796 *MARK = SvTIED_obj((SV*)io, mg);
1798 call_method("WRITE", G_SCALAR);
1809 #if Size_t_size > IVSIZE
1810 length = (Size_t)SvNVx(*++MARK);
1812 length = (Size_t)SvIVx(*++MARK);
1814 if ((SSize_t)length < 0)
1815 DIE(aTHX_ "Negative length");
1818 if (!io || !IoIFP(io)) {
1820 if (ckWARN(WARN_CLOSED))
1821 report_evil_fh(gv, io, PL_op->op_type);
1822 SETERRNO(EBADF,RMS_IFI);
1826 if (PerlIO_isutf8(IoIFP(io))) {
1827 buffer = SvPVutf8(bufsv, blen);
1831 sv_utf8_downgrade(bufsv, FALSE);
1832 buffer = SvPV(bufsv, blen);
1835 if (PL_op->op_type == OP_SYSWRITE) {
1837 if (DO_UTF8(bufsv)) {
1838 /* length and offset are in chars */
1839 blen = sv_len_utf8(bufsv);
1842 offset = SvIVx(*++MARK);
1844 if (-offset > (IV)blen)
1845 DIE(aTHX_ "Offset outside string");
1847 } else if (offset >= (IV)blen && blen > 0)
1848 DIE(aTHX_ "Offset outside string");
1851 if (length > blen - offset)
1852 length = blen - offset;
1853 if (DO_UTF8(bufsv)) {
1854 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1855 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1858 buffer = buffer+offset;
1860 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1861 if (IoTYPE(io) == IoTYPE_SOCKET) {
1862 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1868 /* See the note at doio.c:do_print about filesize limits. --jhi */
1869 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1874 else if (SP > MARK) {
1877 sockbuf = SvPVx(*++MARK, mlen);
1878 /* length is really flags */
1879 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1880 length, (struct sockaddr *)sockbuf, mlen);
1883 /* length is really flags */
1884 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1887 DIE(aTHX_ PL_no_sock_func, "send");
1893 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1894 #if Size_t_size > IVSIZE
1908 return pp_sysread();
1919 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1921 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1923 if (io && !IoIFP(io)) {
1924 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1926 IoFLAGS(io) &= ~IOf_START;
1927 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1928 sv_setpvn(GvSV(gv), "-", 1);
1929 SvSETMAGIC(GvSV(gv));
1931 else if (!nextargv(gv))
1936 gv = PL_last_in_gv; /* eof */
1939 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1941 if (gv && (io = GvIO(gv))
1942 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1945 XPUSHs(SvTIED_obj((SV*)io, mg));
1948 call_method("EOF", G_SCALAR);
1954 PUSHs(boolSV(!gv || do_eof(gv)));
1968 gv = PL_last_in_gv = (GV*)POPs;
1970 if (gv && (io = GvIO(gv))
1971 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1974 XPUSHs(SvTIED_obj((SV*)io, mg));
1977 call_method("TELL", G_SCALAR);
1983 #if LSEEKSIZE > IVSIZE
1984 PUSHn( do_tell(gv) );
1986 PUSHi( do_tell(gv) );
1993 return pp_sysseek();
2002 #if LSEEKSIZE > IVSIZE
2003 Off_t offset = (Off_t)SvNVx(POPs);
2005 Off_t offset = (Off_t)SvIVx(POPs);
2009 gv = PL_last_in_gv = (GV*)POPs;
2011 if (gv && (io = GvIO(gv))
2012 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2015 XPUSHs(SvTIED_obj((SV*)io, mg));
2016 #if LSEEKSIZE > IVSIZE
2017 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2019 XPUSHs(sv_2mortal(newSViv(offset)));
2021 XPUSHs(sv_2mortal(newSViv(whence)));
2024 call_method("SEEK", G_SCALAR);
2030 if (PL_op->op_type == OP_SEEK)
2031 PUSHs(boolSV(do_seek(gv, offset, whence)));
2033 Off_t sought = do_sysseek(gv, offset, whence);
2035 PUSHs(&PL_sv_undef);
2038 #if LSEEKSIZE > IVSIZE
2043 : newSVpvn(zero_but_true, ZBTLEN);
2044 PUSHs(sv_2mortal(sv));
2053 /* There seems to be no consensus on the length type of truncate()
2054 * and ftruncate(), both off_t and size_t have supporters. In
2055 * general one would think that when using large files, off_t is
2056 * at least as wide as size_t, so using an off_t should be okay. */
2057 /* XXX Configure probe for the length type of *truncate() needed XXX */
2060 #if Off_t_size > IVSIZE
2065 /* Checking for length < 0 is problematic as the type might or
2066 * might not be signed: if it is not, clever compilers will moan. */
2067 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2069 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2075 if (PL_op->op_flags & OPf_SPECIAL) {
2076 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2079 TAINT_PROPER("truncate");
2080 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2083 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2085 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2087 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2096 if (SvTYPE(sv) == SVt_PVGV) {
2097 tmpgv = (GV*)sv; /* *main::FRED for example */
2100 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2101 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2105 name = SvPV(sv, n_a);
2106 TAINT_PROPER("truncate");
2108 if (truncate(name, len) < 0)
2114 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2117 if (my_chsize(tmpfd, len) < 0)
2119 PerlLIO_close(tmpfd);
2128 SETERRNO(EBADF,RMS_IFI);
2132 DIE(aTHX_ "truncate not implemented");
2145 unsigned int func = POPu;
2146 int optype = PL_op->op_type;
2150 IO *io = gv ? GvIOn(gv) : 0;
2152 if (!io || !argsv || !IoIFP(io)) {
2153 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2154 report_evil_fh(gv, io, PL_op->op_type);
2155 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2159 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2162 s = SvPV_force(argsv, len);
2163 need = IOCPARM_LEN(func);
2165 s = Sv_Grow(argsv, need + 1);
2166 SvCUR_set(argsv, need);
2169 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2172 retval = SvIV(argsv);
2173 s = INT2PTR(char*,retval); /* ouch */
2176 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2178 if (optype == OP_IOCTL)
2180 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2182 DIE(aTHX_ "ioctl is not implemented");
2186 DIE(aTHX_ "fcntl is not implemented");
2188 #if defined(OS2) && defined(__EMX__)
2189 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2191 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2195 if (s[SvCUR(argsv)] != 17)
2196 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2198 s[SvCUR(argsv)] = 0; /* put our null back */
2199 SvSETMAGIC(argsv); /* Assume it has changed */
2208 PUSHp(zero_but_true, ZBTLEN);
2229 if (gv && (io = GvIO(gv)))
2236 (void)PerlIO_flush(fp);
2237 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2240 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2241 report_evil_fh(gv, io, PL_op->op_type);
2243 SETERRNO(EBADF,RMS_IFI);
2248 DIE(aTHX_ PL_no_func, "flock()");
2260 int protocol = POPi;
2266 io = gv ? GvIOn(gv) : NULL;
2269 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2270 report_evil_fh(gv, io, PL_op->op_type);
2272 do_close(gv, FALSE);
2273 SETERRNO(EBADF,LIB_INVARG);
2278 do_close(gv, FALSE);
2280 TAINT_PROPER("socket");
2281 fd = PerlSock_socket(domain, type, protocol);
2284 IoIFP(io) = PerlIO_fdopen(fd, "r"PIPESOCK_MODE); /* stdio gets confused about sockets */
2285 IoOFP(io) = PerlIO_fdopen(fd, "w"PIPESOCK_MODE);
2286 IoTYPE(io) = IoTYPE_SOCKET;
2287 if (!IoIFP(io) || !IoOFP(io)) {
2288 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2289 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2290 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2293 #if defined(HAS_FCNTL) && defined(F_SETFD)
2294 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2298 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2303 DIE(aTHX_ PL_no_sock_func, "socket");
2309 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2315 int protocol = POPi;
2322 io1 = gv1 ? GvIOn(gv1) : NULL;
2323 io2 = gv2 ? GvIOn(gv2) : NULL;
2324 if (!gv1 || !gv2 || !io1 || !io2) {
2325 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2327 report_evil_fh(gv1, io1, PL_op->op_type);
2329 report_evil_fh(gv1, io2, PL_op->op_type);
2332 do_close(gv1, FALSE);
2334 do_close(gv2, FALSE);
2339 do_close(gv1, FALSE);
2341 do_close(gv2, FALSE);
2343 TAINT_PROPER("socketpair");
2344 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2346 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"PIPESOCK_MODE);
2347 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"PIPESOCK_MODE);
2348 IoTYPE(io1) = IoTYPE_SOCKET;
2349 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"PIPESOCK_MODE);
2350 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"PIPESOCK_MODE);
2351 IoTYPE(io2) = IoTYPE_SOCKET;
2352 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2353 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2354 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2355 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2356 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2357 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2358 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2361 #if defined(HAS_FCNTL) && defined(F_SETFD)
2362 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2363 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2368 DIE(aTHX_ PL_no_sock_func, "socketpair");
2376 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2377 extern void GETPRIVMODE();
2378 extern void GETUSERMODE();
2383 register IO *io = GvIOn(gv);
2387 int mpeprivmode = 0;
2390 if (!io || !IoIFP(io))
2393 addr = SvPV(addrsv, len);
2394 TAINT_PROPER("bind");
2395 #ifdef MPE /* Deal with MPE bind() peculiarities */
2396 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2397 /* The address *MUST* stupidly be zero. */
2398 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2399 /* PRIV mode is required to bind() to ports < 1024. */
2400 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2401 ((struct sockaddr_in *)addr)->sin_port > 0) {
2402 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2407 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2408 (struct sockaddr *)addr, len) >= 0)
2411 #ifdef MPE /* Switch back to USER mode */
2422 if (ckWARN(WARN_CLOSED))
2423 report_evil_fh(gv, io, PL_op->op_type);
2424 SETERRNO(EBADF,SS_IVCHAN);
2427 DIE(aTHX_ PL_no_sock_func, "bind");
2438 register IO *io = GvIOn(gv);
2441 if (!io || !IoIFP(io))
2444 addr = SvPV(addrsv, len);
2445 TAINT_PROPER("connect");
2446 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2452 if (ckWARN(WARN_CLOSED))
2453 report_evil_fh(gv, io, PL_op->op_type);
2454 SETERRNO(EBADF,SS_IVCHAN);
2457 DIE(aTHX_ PL_no_sock_func, "connect");
2467 register IO *io = gv ? GvIOn(gv) : NULL;
2469 if (!gv || !io || !IoIFP(io))
2472 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2478 if (ckWARN(WARN_CLOSED))
2479 report_evil_fh(gv, io, PL_op->op_type);
2480 SETERRNO(EBADF,SS_IVCHAN);
2483 DIE(aTHX_ PL_no_sock_func, "listen");
2495 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2496 Sock_size_t len = sizeof saddr;
2509 if (!gstio || !IoIFP(gstio))
2513 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2517 do_close(ngv, FALSE);
2518 IoIFP(nstio) = PerlIO_fdopen(fd, "r"PIPESOCK_MODE);
2519 /* FIXME: we dup(fd) here so that refcounting of fd's does not inhibit
2520 fclose of IoOFP's FILE * - and hence leak memory.
2521 Special treatment of _this_ case of IoIFP != IoOFP seems wrong.
2523 IoOFP(nstio) = PerlIO_fdopen(fd2 = PerlLIO_dup(fd), "w"PIPESOCK_MODE);
2524 IoTYPE(nstio) = IoTYPE_SOCKET;
2525 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2526 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2527 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2528 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2531 #if defined(HAS_FCNTL) && defined(F_SETFD)
2532 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2533 fcntl(fd2, F_SETFD, fd2 > PL_maxsysfd); /* ensure close-on-exec */
2537 len = sizeof saddr; /* EPOC somehow truncates info */
2538 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2541 PUSHp((char *)&saddr, len);
2545 if (ckWARN(WARN_CLOSED))
2546 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2547 SETERRNO(EBADF,SS_IVCHAN);
2553 DIE(aTHX_ PL_no_sock_func, "accept");
2563 register IO *io = GvIOn(gv);
2565 if (!io || !IoIFP(io))
2568 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2572 if (ckWARN(WARN_CLOSED))
2573 report_evil_fh(gv, io, PL_op->op_type);
2574 SETERRNO(EBADF,SS_IVCHAN);
2577 DIE(aTHX_ PL_no_sock_func, "shutdown");
2584 return pp_ssockopt();
2586 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2594 int optype = PL_op->op_type;
2597 unsigned int optname;
2603 if (optype == OP_GSOCKOPT)
2604 sv = sv_2mortal(NEWSV(22, 257));
2607 optname = (unsigned int) POPi;
2608 lvl = (unsigned int) POPi;
2612 if (!io || !IoIFP(io))
2615 fd = PerlIO_fileno(IoIFP(io));
2619 (void)SvPOK_only(sv);
2623 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2638 aint = (int)SvIV(sv);
2642 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2651 if (ckWARN(WARN_CLOSED))
2652 report_evil_fh(gv, io, optype);
2653 SETERRNO(EBADF,SS_IVCHAN);
2658 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2665 return pp_getpeername();
2667 DIE(aTHX_ PL_no_sock_func, "getsockname");
2675 int optype = PL_op->op_type;
2679 register IO *io = GvIOn(gv);
2682 if (!io || !IoIFP(io))
2685 sv = sv_2mortal(NEWSV(22, 257));
2686 (void)SvPOK_only(sv);
2690 fd = PerlIO_fileno(IoIFP(io));
2692 case OP_GETSOCKNAME:
2693 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2696 case OP_GETPEERNAME:
2697 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2699 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2701 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";
2702 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2703 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2704 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2705 sizeof(u_short) + sizeof(struct in_addr))) {
2712 #ifdef BOGUS_GETNAME_RETURN
2713 /* Interactive Unix, getpeername() and getsockname()
2714 does not return valid namelen */
2715 if (len == BOGUS_GETNAME_RETURN)
2716 len = sizeof(struct sockaddr);
2724 if (ckWARN(WARN_CLOSED))
2725 report_evil_fh(gv, io, optype);
2726 SETERRNO(EBADF,SS_IVCHAN);
2731 DIE(aTHX_ PL_no_sock_func, "getpeername");
2750 if (PL_op->op_flags & OPf_REF) {
2752 if (PL_op->op_type == OP_LSTAT) {
2753 if (gv != PL_defgv) {
2754 if (ckWARN(WARN_IO))
2755 Perl_warner(aTHX_ packWARN(WARN_IO),
2756 "lstat() on filehandle %s", GvENAME(gv));
2757 } else if (PL_laststype != OP_LSTAT)
2758 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2762 if (gv != PL_defgv) {
2763 PL_laststype = OP_STAT;
2765 sv_setpv(PL_statname, "");
2766 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2767 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2769 if (PL_laststatval < 0) {
2770 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2771 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2777 if (SvTYPE(sv) == SVt_PVGV) {
2781 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2783 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2784 Perl_warner(aTHX_ packWARN(WARN_IO),
2785 "lstat() on filehandle %s", GvENAME(gv));
2788 sv_setpv(PL_statname, SvPV(sv,n_a));
2791 PL_laststype = PL_op->op_type;
2792 if (PL_op->op_type == OP_LSTAT)
2793 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2796 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2797 if (PL_laststatval < 0) {
2798 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2799 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2805 if (gimme != G_ARRAY) {
2806 if (gimme != G_VOID)
2807 XPUSHs(boolSV(max));
2813 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2814 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2815 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2816 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2817 #if Uid_t_size > IVSIZE
2818 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2820 # if Uid_t_sign <= 0
2821 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2823 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2826 #if Gid_t_size > IVSIZE
2827 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2829 # if Gid_t_sign <= 0
2830 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2832 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2835 #ifdef USE_STAT_RDEV
2836 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2838 PUSHs(sv_2mortal(newSVpvn("", 0)));
2840 #if Off_t_size > IVSIZE
2841 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2843 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2846 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2847 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2848 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2850 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2851 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2852 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2854 #ifdef USE_STAT_BLOCKS
2855 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2856 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2858 PUSHs(sv_2mortal(newSVpvn("", 0)));
2859 PUSHs(sv_2mortal(newSVpvn("", 0)));
2869 #if defined(HAS_ACCESS) && defined(R_OK)
2871 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2872 result = access(TOPpx, R_OK);
2887 if (cando(S_IRUSR, 0, &PL_statcache))
2896 #if defined(HAS_ACCESS) && defined(W_OK)
2898 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2899 result = access(TOPpx, W_OK);
2914 if (cando(S_IWUSR, 0, &PL_statcache))
2923 #if defined(HAS_ACCESS) && defined(X_OK)
2925 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2926 result = access(TOPpx, X_OK);
2941 if (cando(S_IXUSR, 0, &PL_statcache))
2950 #ifdef PERL_EFF_ACCESS_R_OK
2952 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2953 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2968 if (cando(S_IRUSR, 1, &PL_statcache))
2977 #ifdef PERL_EFF_ACCESS_W_OK
2979 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2980 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2995 if (cando(S_IWUSR, 1, &PL_statcache))
3004 #ifdef PERL_EFF_ACCESS_X_OK
3006 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
3007 result = PERL_EFF_ACCESS_X_OK(TOPpx);
3022 if (cando(S_IXUSR, 1, &PL_statcache))
3029 I32 result = my_stat();
3038 return pp_ftrowned();
3043 I32 result = my_stat();
3047 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3055 I32 result = my_stat();
3059 if (PL_statcache.st_size == 0)
3066 I32 result = my_stat();
3070 #if Off_t_size > IVSIZE
3071 PUSHn(PL_statcache.st_size);
3073 PUSHi(PL_statcache.st_size);
3080 I32 result = my_stat();
3084 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3090 I32 result = my_stat();
3094 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3100 I32 result = my_stat();
3104 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3110 I32 result = my_stat();
3114 if (S_ISSOCK(PL_statcache.st_mode))
3121 I32 result = my_stat();
3125 if (S_ISCHR(PL_statcache.st_mode))
3132 I32 result = my_stat();
3136 if (S_ISBLK(PL_statcache.st_mode))
3143 I32 result = my_stat();
3147 if (S_ISREG(PL_statcache.st_mode))
3154 I32 result = my_stat();
3158 if (S_ISDIR(PL_statcache.st_mode))
3165 I32 result = my_stat();
3169 if (S_ISFIFO(PL_statcache.st_mode))
3176 I32 result = my_lstat();
3180 if (S_ISLNK(PL_statcache.st_mode))
3189 I32 result = my_stat();
3193 if (PL_statcache.st_mode & S_ISUID)
3203 I32 result = my_stat();
3207 if (PL_statcache.st_mode & S_ISGID)
3217 I32 result = my_stat();
3221 if (PL_statcache.st_mode & S_ISVTX)
3232 char *tmps = Nullch;
3235 if (PL_op->op_flags & OPf_REF)
3237 else if (isGV(TOPs))
3239 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3240 gv = (GV*)SvRV(POPs);
3242 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3244 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3245 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3246 else if (tmps && isDIGIT(*tmps))
3250 if (PerlLIO_isatty(fd))
3255 #if defined(atarist) /* this will work with atariST. Configure will
3256 make guesses for other systems. */
3257 # define FILE_base(f) ((f)->_base)
3258 # define FILE_ptr(f) ((f)->_ptr)
3259 # define FILE_cnt(f) ((f)->_cnt)
3260 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3270 register STDCHAR *s;
3277 if (PL_op->op_flags & OPf_REF)
3279 else if (isGV(TOPs))
3281 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3282 gv = (GV*)SvRV(POPs);
3288 if (gv == PL_defgv) {
3290 io = GvIO(PL_statgv);
3293 goto really_filename;
3298 PL_laststatval = -1;
3299 sv_setpv(PL_statname, "");
3300 io = GvIO(PL_statgv);
3302 if (io && IoIFP(io)) {
3303 if (! PerlIO_has_base(IoIFP(io)))
3304 DIE(aTHX_ "-T and -B not implemented on filehandles");
3305 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3306 if (PL_laststatval < 0)
3308 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3309 if (PL_op->op_type == OP_FTTEXT)
3314 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3315 i = PerlIO_getc(IoIFP(io));
3317 (void)PerlIO_ungetc(IoIFP(io),i);
3319 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3321 len = PerlIO_get_bufsiz(IoIFP(io));
3322 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3323 /* sfio can have large buffers - limit to 512 */
3328 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3330 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3332 SETERRNO(EBADF,RMS_IFI);
3340 PL_laststatval = -1;
3341 PL_laststype = OP_STAT;
3342 sv_setpv(PL_statname, SvPV(sv, n_a));
3343 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3344 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3345 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3348 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3349 if (PL_laststatval < 0) {
3350 (void)PerlIO_close(fp);
3353 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3354 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3355 (void)PerlIO_close(fp);
3357 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3358 RETPUSHNO; /* special case NFS directories */
3359 RETPUSHYES; /* null file is anything */
3364 /* now scan s to look for textiness */
3365 /* XXX ASCII dependent code */
3367 #if defined(DOSISH) || defined(USEMYBINMODE)
3368 /* ignore trailing ^Z on short files */
3369 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3373 for (i = 0; i < len; i++, s++) {
3374 if (!*s) { /* null never allowed in text */
3379 else if (!(isPRINT(*s) || isSPACE(*s)))
3382 else if (*s & 128) {
3384 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3387 /* utf8 characters don't count as odd */
3388 if (UTF8_IS_START(*s)) {
3389 int ulen = UTF8SKIP(s);
3390 if (ulen < len - i) {
3392 for (j = 1; j < ulen; j++) {
3393 if (!UTF8_IS_CONTINUATION(s[j]))
3396 --ulen; /* loop does extra increment */
3406 *s != '\n' && *s != '\r' && *s != '\b' &&
3407 *s != '\t' && *s != '\f' && *s != 27)
3412 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3437 if( !tmps || !*tmps ) {
3438 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3439 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3441 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3446 deprecate("chdir('') or chdir(undef) as chdir()");
3447 tmps = SvPV(*svp, n_a);
3451 TAINT_PROPER("chdir");
3456 TAINT_PROPER("chdir");
3457 PUSHi( PerlDir_chdir(tmps) >= 0 );
3459 /* Clear the DEFAULT element of ENV so we'll get the new value
3461 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3469 dSP; dMARK; dTARGET;
3470 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3476 DIE(aTHX_ PL_no_func, "chown");
3486 TAINT_PROPER("chroot");
3487 PUSHi( chroot(tmps) >= 0 );
3490 DIE(aTHX_ PL_no_func, "chroot");
3496 dSP; dMARK; dTARGET;
3498 value = (I32)apply(PL_op->op_type, MARK, SP);
3506 dSP; dMARK; dTARGET;
3508 value = (I32)apply(PL_op->op_type, MARK, SP);
3516 dSP; dMARK; dTARGET;
3518 value = (I32)apply(PL_op->op_type, MARK, SP);
3530 char *tmps2 = POPpx;
3531 char *tmps = SvPV(TOPs, n_a);
3532 TAINT_PROPER("rename");
3534 anum = PerlLIO_rename(tmps, tmps2);
3536 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3537 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3540 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3541 (void)UNLINK(tmps2);
3542 if (!(anum = link(tmps, tmps2)))
3543 anum = UNLINK(tmps);
3556 char *tmps2 = POPpx;
3557 char *tmps = SvPV(TOPs, n_a);
3558 TAINT_PROPER("link");
3559 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3562 DIE(aTHX_ PL_no_func, "link");
3571 char *tmps2 = POPpx;
3572 char *tmps = SvPV(TOPs, n_a);
3573 TAINT_PROPER("symlink");
3574 SETi( symlink(tmps, tmps2) >= 0 );
3577 DIE(aTHX_ PL_no_func, "symlink");
3587 char buf[MAXPATHLEN];
3591 #ifndef INCOMPLETE_TAINTS
3595 len = readlink(tmps, buf, sizeof(buf) - 1);
3603 RETSETUNDEF; /* just pretend it's a normal file */
3607 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3609 S_dooneliner(pTHX_ char *cmd, char *filename)
3611 char *save_filename = filename;
3617 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3618 strcpy(cmdline, cmd);
3619 strcat(cmdline, " ");
3620 for (s = cmdline + strlen(cmdline); *filename; ) {
3625 myfp = PerlProc_popen(cmdline, "r");
3629 SV *tmpsv = sv_newmortal();
3630 /* Need to save/restore 'PL_rs' ?? */
3631 s = sv_gets(tmpsv, myfp, 0);
3632 (void)PerlProc_pclose(myfp);
3636 #ifdef HAS_SYS_ERRLIST
3641 /* you don't see this */
3643 #ifdef HAS_SYS_ERRLIST
3651 if (instr(s, errmsg)) {
3658 #define EACCES EPERM
3660 if (instr(s, "cannot make"))
3661 SETERRNO(EEXIST,RMS_FEX);
3662 else if (instr(s, "existing file"))
3663 SETERRNO(EEXIST,RMS_FEX);
3664 else if (instr(s, "ile exists"))
3665 SETERRNO(EEXIST,RMS_FEX);
3666 else if (instr(s, "non-exist"))
3667 SETERRNO(ENOENT,RMS_FNF);
3668 else if (instr(s, "does not exist"))
3669 SETERRNO(ENOENT,RMS_FNF);
3670 else if (instr(s, "not empty"))
3671 SETERRNO(EBUSY,SS_DEVOFFLINE);
3672 else if (instr(s, "cannot access"))
3673 SETERRNO(EACCES,RMS_PRV);
3675 SETERRNO(EPERM,RMS_PRV);
3678 else { /* some mkdirs return no failure indication */
3679 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3680 if (PL_op->op_type == OP_RMDIR)
3685 SETERRNO(EACCES,RMS_PRV); /* a guess */
3710 tmps = SvPV(TOPs, len);
3711 /* Different operating and file systems take differently to
3712 * trailing slashes. According to POSIX 1003.1 1996 Edition
3713 * any number of trailing slashes should be allowed.
3714 * Thusly we snip them away so that even non-conforming
3715 * systems are happy. */
3716 /* We should probably do this "filtering" for all
3717 * the functions that expect (potentially) directory names:
3718 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3719 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3720 if (len > 1 && tmps[len-1] == '/') {
3721 while (tmps[len-1] == '/' && len > 1)
3723 tmps = savepvn(tmps, len);
3727 TAINT_PROPER("mkdir");
3729 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3731 SETi( dooneliner("mkdir", tmps) );
3732 oldumask = PerlLIO_umask(0);
3733 PerlLIO_umask(oldumask);
3734 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3748 TAINT_PROPER("rmdir");
3750 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3752 XPUSHi( dooneliner("rmdir", tmps) );
3757 /* Directory calls. */
3761 #if defined(Direntry_t) && defined(HAS_READDIR)
3764 char *dirname = POPpx;
3766 register IO *io = GvIOn(gv);
3772 PerlDir_close(IoDIRP(io));
3773 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3779 SETERRNO(EBADF,RMS_DIR);
3782 DIE(aTHX_ PL_no_dir_func, "opendir");
3788 #if defined(Direntry_t) && defined(HAS_READDIR)
3790 #if !defined(I_DIRENT) && !defined(VMS)
3791 Direntry_t *readdir (DIR *);
3793 register Direntry_t *dp;
3795 register IO *io = GvIOn(gv);
3798 if (!io || !IoDIRP(io))
3801 if (GIMME == G_ARRAY) {
3803 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3805 sv = newSVpvn(dp->d_name, dp->d_namlen);
3807 sv = newSVpv(dp->d_name, 0);
3809 #ifndef INCOMPLETE_TAINTS
3810 if (!(IoFLAGS(io) & IOf_UNTAINT))
3813 XPUSHs(sv_2mortal(sv));
3817 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3820 sv = newSVpvn(dp->d_name, dp->d_namlen);
3822 sv = newSVpv(dp->d_name, 0);
3824 #ifndef INCOMPLETE_TAINTS
3825 if (!(IoFLAGS(io) & IOf_UNTAINT))
3828 XPUSHs(sv_2mortal(sv));
3834 SETERRNO(EBADF,RMS_ISI);
3835 if (GIMME == G_ARRAY)
3840 DIE(aTHX_ PL_no_dir_func, "readdir");
3846 #if defined(HAS_TELLDIR) || defined(telldir)
3848 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3849 /* XXX netbsd still seemed to.
3850 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3851 --JHI 1999-Feb-02 */
3852 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3853 long telldir (DIR *);
3856 register IO *io = GvIOn(gv);
3858 if (!io || !IoDIRP(io))
3861 PUSHi( PerlDir_tell(IoDIRP(io)) );
3865 SETERRNO(EBADF,RMS_ISI);
3868 DIE(aTHX_ PL_no_dir_func, "telldir");
3874 #if defined(HAS_SEEKDIR) || defined(seekdir)
3878 register IO *io = GvIOn(gv);
3880 if (!io || !IoDIRP(io))
3883 (void)PerlDir_seek(IoDIRP(io), along);
3888 SETERRNO(EBADF,RMS_ISI);
3891 DIE(aTHX_ PL_no_dir_func, "seekdir");
3897 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3900 register IO *io = GvIOn(gv);
3902 if (!io || !IoDIRP(io))
3905 (void)PerlDir_rewind(IoDIRP(io));
3909 SETERRNO(EBADF,RMS_ISI);
3912 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3918 #if defined(Direntry_t) && defined(HAS_READDIR)
3921 register IO *io = GvIOn(gv);
3923 if (!io || !IoDIRP(io))
3926 #ifdef VOID_CLOSEDIR
3927 PerlDir_close(IoDIRP(io));
3929 if (PerlDir_close(IoDIRP(io)) < 0) {
3930 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3939 SETERRNO(EBADF,RMS_IFI);
3942 DIE(aTHX_ PL_no_dir_func, "closedir");
3946 /* Process control. */
3956 PERL_FLUSHALL_FOR_CHILD;
3957 childpid = PerlProc_fork();
3962 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3963 SvREADONLY_off(GvSV(tmpgv));
3964 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3965 SvREADONLY_on(GvSV(tmpgv));
3967 #ifdef THREADS_HAVE_PIDS
3968 PL_ppid = (IV)getppid();
3970 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3975 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3980 PERL_FLUSHALL_FOR_CHILD;
3981 childpid = PerlProc_fork();
3987 DIE(aTHX_ PL_no_func, "fork");
3994 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3999 #ifdef PERL_OLD_SIGNALS
4000 childpid = wait4pid(-1, &argflags, 0);
4002 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
4006 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4007 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4008 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4010 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4015 DIE(aTHX_ PL_no_func, "wait");
4021 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4029 #ifdef PERL_OLD_SIGNALS
4030 childpid = wait4pid(childpid, &argflags, optype);
4032 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
4036 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4037 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4038 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4040 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4045 DIE(aTHX_ PL_no_func, "waitpid");
4051 dSP; dMARK; dORIGMARK; dTARGET;
4059 while (++MARK <= SP) {
4060 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4065 TAINT_PROPER("system");
4067 PERL_FLUSHALL_FOR_CHILD;
4068 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4073 if (PerlProc_pipe(pp) >= 0)
4075 while ((childpid = PerlProc_fork()) == -1) {
4076 if (errno != EAGAIN) {
4081 PerlLIO_close(pp[0]);
4082 PerlLIO_close(pp[1]);
4089 Sigsave_t ihand,qhand; /* place to save signals during system() */
4093 PerlLIO_close(pp[1]);
4095 rsignal_save(SIGINT, SIG_IGN, &ihand);
4096 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4099 result = wait4pid(childpid, &status, 0);
4100 } while (result == -1 && errno == EINTR);
4102 (void)rsignal_restore(SIGINT, &ihand);
4103 (void)rsignal_restore(SIGQUIT, &qhand);
4105 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4106 do_execfree(); /* free any memory child malloced on fork */
4112 while (n < sizeof(int)) {
4113 n1 = PerlLIO_read(pp[0],
4114 (void*)(((char*)&errkid)+n),
4120 PerlLIO_close(pp[0]);
4121 if (n) { /* Error */
4122 if (n != sizeof(int))
4123 DIE(aTHX_ "panic: kid popen errno read");
4124 errno = errkid; /* Propagate errno from kid */
4125 STATUS_CURRENT = -1;
4128 PUSHi(STATUS_CURRENT);
4132 PerlLIO_close(pp[0]);
4133 #if defined(HAS_FCNTL) && defined(F_SETFD)
4134 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4137 if (PL_op->op_flags & OPf_STACKED) {
4138 SV *really = *++MARK;
4139 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4141 else if (SP - MARK != 1)
4142 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4144 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4148 #else /* ! FORK or VMS or OS/2 */
4151 if (PL_op->op_flags & OPf_STACKED) {
4152 SV *really = *++MARK;
4154 value = (I32)do_aspawn(really, MARK, SP);
4156 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4159 else if (SP - MARK != 1) {
4161 value = (I32)do_aspawn(Nullsv, MARK, SP);
4163 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4167 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4169 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4171 STATUS_NATIVE_SET(value);
4174 PUSHi(result ? value : STATUS_CURRENT);
4175 #endif /* !FORK or VMS */
4181 dSP; dMARK; dORIGMARK; dTARGET;
4187 while (++MARK <= SP) {
4188 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4193 TAINT_PROPER("exec");
4195 PERL_FLUSHALL_FOR_CHILD;
4196 if (PL_op->op_flags & OPf_STACKED) {
4197 SV *really = *++MARK;
4198 value = (I32)do_aexec(really, MARK, SP);
4200 else if (SP - MARK != 1)
4202 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4206 (void ) do_aspawn(Nullsv, MARK, SP);
4210 value = (I32)do_aexec(Nullsv, MARK, SP);
4215 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4218 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4221 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4234 dSP; dMARK; dTARGET;
4236 value = (I32)apply(PL_op->op_type, MARK, SP);
4241 DIE(aTHX_ PL_no_func, "kill");
4249 # ifdef THREADS_HAVE_PIDS
4252 XPUSHi( getppid() );
4256 DIE(aTHX_ PL_no_func, "getppid");
4272 pgrp = (I32)BSD_GETPGRP(pid);
4274 if (pid != 0 && pid != PerlProc_getpid())
4275 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4281 DIE(aTHX_ PL_no_func, "getpgrp()");
4300 TAINT_PROPER("setpgrp");
4302 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4304 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4305 || (pid != 0 && pid != PerlProc_getpid()))
4307 DIE(aTHX_ "setpgrp can't take arguments");
4309 SETi( setpgrp() >= 0 );
4310 #endif /* USE_BSDPGRP */
4313 DIE(aTHX_ PL_no_func, "setpgrp()");
4319 #ifdef HAS_GETPRIORITY
4323 SETi( getpriority(which, who) );
4326 DIE(aTHX_ PL_no_func, "getpriority()");
4332 #ifdef HAS_SETPRIORITY
4337 TAINT_PROPER("setpriority");
4338 SETi( setpriority(which, who, niceval) >= 0 );
4341 DIE(aTHX_ PL_no_func, "setpriority()");
4351 XPUSHn( time(Null(Time_t*)) );
4353 XPUSHi( time(Null(Time_t*)) );
4364 (void)PerlProc_times(&PL_timesbuf);
4366 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4367 /* struct tms, though same data */
4371 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4372 if (GIMME == G_ARRAY) {
4373 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4374 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4375 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4379 DIE(aTHX_ "times not implemented");
4380 #endif /* HAS_TIMES */
4393 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4394 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4395 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4401 when = (Time_t)SvNVx(POPs);
4403 when = (Time_t)SvIVx(POPs);
4406 if (PL_op->op_type == OP_LOCALTIME)
4407 tmbuf = localtime(&when);
4409 tmbuf = gmtime(&when);
4411 if (GIMME != G_ARRAY) {
4417 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4418 dayname[tmbuf->tm_wday],
4419 monname[tmbuf->tm_mon],
4424 tmbuf->tm_year + 1900);
4425 PUSHs(sv_2mortal(tsv));
4430 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4431 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4432 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4433 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4434 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4435 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4436 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4437 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4438 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4449 anum = alarm((unsigned int)anum);
4456 DIE(aTHX_ PL_no_func, "alarm");
4467 (void)time(&lasttime);
4472 PerlProc_sleep((unsigned int)duration);
4475 XPUSHi(when - lasttime);
4479 /* Shared memory. */
4493 return pp_shmwrite();
4498 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4499 dSP; dMARK; dTARGET;
4500 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4509 /* Message passing. */
4523 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4524 dSP; dMARK; dTARGET;
4525 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4536 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4537 dSP; dMARK; dTARGET;
4538 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4551 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4552 dSP; dMARK; dTARGET;
4553 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4560 DIE(aTHX_ "System V IPC is not implemented on this machine");
4566 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4567 dSP; dMARK; dTARGET;
4568 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4576 PUSHp(zero_but_true, ZBTLEN);
4586 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4587 dSP; dMARK; dTARGET;
4588 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4597 /* Get system info. */
4601 #ifdef HAS_GETHOSTBYNAME
4602 return pp_ghostent();
4604 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4610 #ifdef HAS_GETHOSTBYADDR
4611 return pp_ghostent();
4613 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4619 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4621 I32 which = PL_op->op_type;
4622 register char **elem;
4624 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4625 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4626 struct hostent *gethostbyname(Netdb_name_t);
4627 struct hostent *gethostent(void);
4629 struct hostent *hent;
4634 if (which == OP_GHBYNAME) {
4635 #ifdef HAS_GETHOSTBYNAME
4636 char* name = POPpbytex;
4637 hent = PerlSock_gethostbyname(name);
4639 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4642 else if (which == OP_GHBYADDR) {
4643 #ifdef HAS_GETHOSTBYADDR
4644 int addrtype = POPi;
4647 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4649 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4651 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4655 #ifdef HAS_GETHOSTENT
4656 hent = PerlSock_gethostent();
4658 DIE(aTHX_ PL_no_sock_func, "gethostent");
4661 #ifdef HOST_NOT_FOUND
4663 #ifdef USE_REENTRANT_API
4664 # ifdef USE_GETHOSTENT_ERRNO
4665 h_errno = PL_reentrant_buffer->_gethostent_errno;
4668 STATUS_NATIVE_SET(h_errno);
4672 if (GIMME != G_ARRAY) {
4673 PUSHs(sv = sv_newmortal());
4675 if (which == OP_GHBYNAME) {
4677 sv_setpvn(sv, hent->h_addr, hent->h_length);
4680 sv_setpv(sv, (char*)hent->h_name);
4686 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4687 sv_setpv(sv, (char*)hent->h_name);
4688 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4689 for (elem = hent->h_aliases; elem && *elem; elem++) {
4690 sv_catpv(sv, *elem);
4692 sv_catpvn(sv, " ", 1);
4694 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4695 sv_setiv(sv, (IV)hent->h_addrtype);
4696 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4697 len = hent->h_length;
4698 sv_setiv(sv, (IV)len);
4700 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4701 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4702 sv_setpvn(sv, *elem, len);
4705 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4707 sv_setpvn(sv, hent->h_addr, len);
4712 DIE(aTHX_ PL_no_sock_func, "gethostent");
4718 #ifdef HAS_GETNETBYNAME
4719 return pp_gnetent();
4721 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4727 #ifdef HAS_GETNETBYADDR
4728 return pp_gnetent();
4730 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4736 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4738 I32 which = PL_op->op_type;
4739 register char **elem;
4741 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4742 struct netent *getnetbyaddr(Netdb_net_t, int);
4743 struct netent *getnetbyname(Netdb_name_t);
4744 struct netent *getnetent(void);
4746 struct netent *nent;
4749 if (which == OP_GNBYNAME){
4750 #ifdef HAS_GETNETBYNAME
4751 char *name = POPpbytex;
4752 nent = PerlSock_getnetbyname(name);
4754 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4757 else if (which == OP_GNBYADDR) {
4758 #ifdef HAS_GETNETBYADDR
4759 int addrtype = POPi;
4760 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4761 nent = PerlSock_getnetbyaddr(addr, addrtype);
4763 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4767 #ifdef HAS_GETNETENT
4768 nent = PerlSock_getnetent();
4770 DIE(aTHX_ PL_no_sock_func, "getnetent");
4773 #ifdef HOST_NOT_FOUND
4775 #ifdef USE_REENTRANT_API
4776 # ifdef USE_GETNETENT_ERRNO
4777 h_errno = PL_reentrant_buffer->_getnetent_errno;
4780 STATUS_NATIVE_SET(h_errno);
4785 if (GIMME != G_ARRAY) {
4786 PUSHs(sv = sv_newmortal());
4788 if (which == OP_GNBYNAME)
4789 sv_setiv(sv, (IV)nent->n_net);
4791 sv_setpv(sv, nent->n_name);
4797 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4798 sv_setpv(sv, nent->n_name);
4799 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4800 for (elem = nent->n_aliases; elem && *elem; elem++) {
4801 sv_catpv(sv, *elem);
4803 sv_catpvn(sv, " ", 1);
4805 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4806 sv_setiv(sv, (IV)nent->n_addrtype);
4807 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4808 sv_setiv(sv, (IV)nent->n_net);
4813 DIE(aTHX_ PL_no_sock_func, "getnetent");
4819 #ifdef HAS_GETPROTOBYNAME
4820 return pp_gprotoent();
4822 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4828 #ifdef HAS_GETPROTOBYNUMBER
4829 return pp_gprotoent();
4831 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4837 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4839 I32 which = PL_op->op_type;
4840 register char **elem;
4842 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4843 struct protoent *getprotobyname(Netdb_name_t);
4844 struct protoent *getprotobynumber(int);
4845 struct protoent *getprotoent(void);
4847 struct protoent *pent;
4850 if (which == OP_GPBYNAME) {
4851 #ifdef HAS_GETPROTOBYNAME
4852 char* name = POPpbytex;
4853 pent = PerlSock_getprotobyname(name);
4855 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4858 else if (which == OP_GPBYNUMBER) {
4859 #ifdef HAS_GETPROTOBYNUMBER
4861 pent = PerlSock_getprotobynumber(number);
4863 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4867 #ifdef HAS_GETPROTOENT
4868 pent = PerlSock_getprotoent();
4870 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4874 if (GIMME != G_ARRAY) {
4875 PUSHs(sv = sv_newmortal());
4877 if (which == OP_GPBYNAME)
4878 sv_setiv(sv, (IV)pent->p_proto);
4880 sv_setpv(sv, pent->p_name);
4886 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4887 sv_setpv(sv, pent->p_name);
4888 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4889 for (elem = pent->p_aliases; elem && *elem; elem++) {
4890 sv_catpv(sv, *elem);
4892 sv_catpvn(sv, " ", 1);
4894 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4895 sv_setiv(sv, (IV)pent->p_proto);
4900 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4906 #ifdef HAS_GETSERVBYNAME
4907 return pp_gservent();
4909 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4915 #ifdef HAS_GETSERVBYPORT
4916 return pp_gservent();
4918 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4924 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4926 I32 which = PL_op->op_type;
4927 register char **elem;
4929 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4930 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4931 struct servent *getservbyport(int, Netdb_name_t);
4932 struct servent *getservent(void);
4934 struct servent *sent;
4937 if (which == OP_GSBYNAME) {
4938 #ifdef HAS_GETSERVBYNAME
4939 char *proto = POPpbytex;
4940 char *name = POPpbytex;
4942 if (proto && !*proto)
4945 sent = PerlSock_getservbyname(name, proto);
4947 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4950 else if (which == OP_GSBYPORT) {
4951 #ifdef HAS_GETSERVBYPORT
4952 char *proto = POPpbytex;
4953 unsigned short port = (unsigned short)POPu;
4955 if (proto && !*proto)
4959 port = PerlSock_htons(port);
4961 sent = PerlSock_getservbyport(port, proto);
4963 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4967 #ifdef HAS_GETSERVENT
4968 sent = PerlSock_getservent();
4970 DIE(aTHX_ PL_no_sock_func, "getservent");
4974 if (GIMME != G_ARRAY) {
4975 PUSHs(sv = sv_newmortal());
4977 if (which == OP_GSBYNAME) {
4979 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4981 sv_setiv(sv, (IV)(sent->s_port));
4985 sv_setpv(sv, sent->s_name);
4991 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4992 sv_setpv(sv, sent->s_name);
4993 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4994 for (elem = sent->s_aliases; elem && *elem; elem++) {
4995 sv_catpv(sv, *elem);
4997 sv_catpvn(sv, " ", 1);
4999 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5001 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5003 sv_setiv(sv, (IV)(sent->s_port));
5005 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5006 sv_setpv(sv, sent->s_proto);
5011 DIE(aTHX_ PL_no_sock_func, "getservent");
5017 #ifdef HAS_SETHOSTENT
5019 PerlSock_sethostent(TOPi);
5022 DIE(aTHX_ PL_no_sock_func, "sethostent");
5028 #ifdef HAS_SETNETENT
5030 PerlSock_setnetent(TOPi);
5033 DIE(aTHX_ PL_no_sock_func, "setnetent");
5039 #ifdef HAS_SETPROTOENT
5041 PerlSock_setprotoent(TOPi);
5044 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5050 #ifdef HAS_SETSERVENT
5052 PerlSock_setservent(TOPi);
5055 DIE(aTHX_ PL_no_sock_func, "setservent");
5061 #ifdef HAS_ENDHOSTENT
5063 PerlSock_endhostent();
5067 DIE(aTHX_ PL_no_sock_func, "endhostent");
5073 #ifdef HAS_ENDNETENT
5075 PerlSock_endnetent();
5079 DIE(aTHX_ PL_no_sock_func, "endnetent");
5085 #ifdef HAS_ENDPROTOENT
5087 PerlSock_endprotoent();
5091 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5097 #ifdef HAS_ENDSERVENT
5099 PerlSock_endservent();
5103 DIE(aTHX_ PL_no_sock_func, "endservent");
5112 DIE(aTHX_ PL_no_func, "getpwnam");
5121 DIE(aTHX_ PL_no_func, "getpwuid");
5129 I32 which = PL_op->op_type;
5132 struct passwd *pwent = NULL;
5134 * We currently support only the SysV getsp* shadow password interface.
5135 * The interface is declared in <shadow.h> and often one needs to link
5136 * with -lsecurity or some such.
5137 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5140 * AIX getpwnam() is clever enough to return the encrypted password
5141 * only if the caller (euid?) is root.
5143 * There are at least two other shadow password APIs. Many platforms
5144 * seem to contain more than one interface for accessing the shadow
5145 * password databases, possibly for compatibility reasons.
5146 * The getsp*() is by far he simplest one, the other two interfaces
5147 * are much more complicated, but also very similar to each other.
5152 * struct pr_passwd *getprpw*();
5153 * The password is in
5154 * char getprpw*(...).ufld.fd_encrypt[]
5155 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5160 * struct es_passwd *getespw*();
5161 * The password is in
5162 * char *(getespw*(...).ufld.fd_encrypt)
5163 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5165 * Mention I_PROT here so that Configure probes for it.
5167 * In HP-UX for getprpw*() the manual page claims that one should include
5168 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5169 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5170 * and pp_sys.c already includes <shadow.h> if there is such.
5172 * Note that <sys/security.h> is already probed for, but currently
5173 * it is only included in special cases.
5175 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5176 * be preferred interface, even though also the getprpw*() interface
5177 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5178 * One also needs to call set_auth_parameters() in main() before
5179 * doing anything else, whether one is using getespw*() or getprpw*().
5181 * Note that accessing the shadow databases can be magnitudes
5182 * slower than accessing the standard databases.
5190 char* name = POPpbytex;
5191 pwent = getpwnam(name);
5197 pwent = getpwuid(uid);
5201 # ifdef HAS_GETPWENT
5203 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5204 if (pwent) pwent = getpwnam(pwent->pw_name);
5207 DIE(aTHX_ PL_no_func, "getpwent");
5213 if (GIMME != G_ARRAY) {
5214 PUSHs(sv = sv_newmortal());
5216 if (which == OP_GPWNAM)
5217 # if Uid_t_sign <= 0
5218 sv_setiv(sv, (IV)pwent->pw_uid);
5220 sv_setuv(sv, (UV)pwent->pw_uid);
5223 sv_setpv(sv, pwent->pw_name);
5229 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5230 sv_setpv(sv, pwent->pw_name);
5232 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5234 /* If we have getspnam(), we try to dig up the shadow
5235 * password. If we are underprivileged, the shadow
5236 * interface will set the errno to EACCES or similar,
5237 * and return a null pointer. If this happens, we will
5238 * use the dummy password (usually "*" or "x") from the
5239 * standard password database.
5241 * In theory we could skip the shadow call completely
5242 * if euid != 0 but in practice we cannot know which
5243 * security measures are guarding the shadow databases
5244 * on a random platform.
5246 * Resist the urge to use additional shadow interfaces.
5247 * Divert the urge to writing an extension instead.
5250 # ifdef HAS_GETSPNAM
5252 struct spwd *spwent;
5253 int saverrno; /* Save and restore errno so that
5254 * underprivileged attempts seem
5255 * to have never made the unsccessful
5256 * attempt to retrieve the shadow password. */
5259 spwent = getspnam(pwent->pw_name);
5261 if (spwent && spwent->sp_pwdp)
5262 sv_setpv(sv, spwent->sp_pwdp);
5266 if (!SvPOK(sv)) /* Use the standard password, then. */
5267 sv_setpv(sv, pwent->pw_passwd);
5270 # ifndef INCOMPLETE_TAINTS
5271 /* passwd is tainted because user himself can diddle with it.
5272 * admittedly not much and in a very limited way, but nevertheless. */
5276 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5277 # if Uid_t_sign <= 0
5278 sv_setiv(sv, (IV)pwent->pw_uid);
5280 sv_setuv(sv, (UV)pwent->pw_uid);
5283 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5284 # if Uid_t_sign <= 0
5285 sv_setiv(sv, (IV)pwent->pw_gid);
5287 sv_setuv(sv, (UV)pwent->pw_gid);
5289 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5290 * because of the poor interface of the Perl getpw*(),
5291 * not because there's some standard/convention saying so.
5292 * A better interface would have been to return a hash,
5293 * but we are accursed by our history, alas. --jhi. */
5294 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5296 sv_setiv(sv, (IV)pwent->pw_change);
5299 sv_setiv(sv, (IV)pwent->pw_quota);
5302 sv_setpv(sv, pwent->pw_age);
5307 /* pw_class and pw_comment are mutually exclusive--.
5308 * see the above note for pw_change, pw_quota, and pw_age. */
5309 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5311 sv_setpv(sv, pwent->pw_class);
5314 sv_setpv(sv, pwent->pw_comment);
5318 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5320 sv_setpv(sv, pwent->pw_gecos);
5322 # ifndef INCOMPLETE_TAINTS
5323 /* pw_gecos is tainted because user himself can diddle with it. */
5327 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5328 sv_setpv(sv, pwent->pw_dir);
5330 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5331 sv_setpv(sv, pwent->pw_shell);
5332 # ifndef INCOMPLETE_TAINTS
5333 /* pw_shell is tainted because user himself can diddle with it. */
5338 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5339 sv_setiv(sv, (IV)pwent->pw_expire);
5344 DIE(aTHX_ PL_no_func, "getpwent");
5350 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5355 DIE(aTHX_ PL_no_func, "setpwent");
5361 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5366 DIE(aTHX_ PL_no_func, "endpwent");
5375 DIE(aTHX_ PL_no_func, "getgrnam");
5384 DIE(aTHX_ PL_no_func, "getgrgid");
5392 I32 which = PL_op->op_type;
5393 register char **elem;
5395 struct group *grent;
5398 if (which == OP_GGRNAM) {
5399 char* name = POPpbytex;
5400 grent = (struct group *)getgrnam(name);
5402 else if (which == OP_GGRGID) {
5404 grent = (struct group *)getgrgid(gid);
5408 grent = (struct group *)getgrent();
5410 DIE(aTHX_ PL_no_func, "getgrent");
5414 if (GIMME != G_ARRAY) {
5415 PUSHs(sv = sv_newmortal());
5417 if (which == OP_GGRNAM)
5418 sv_setiv(sv, (IV)grent->gr_gid);
5420 sv_setpv(sv, grent->gr_name);
5426 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5427 sv_setpv(sv, grent->gr_name);
5429 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5431 sv_setpv(sv, grent->gr_passwd);
5434 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5435 sv_setiv(sv, (IV)grent->gr_gid);
5437 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5438 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5439 /* In UNICOS/mk (_CRAYMPP) the multithreading
5440 * versions (getgrnam_r, getgrgid_r)
5441 * seem to return an illegal pointer
5442 * as the group members list, gr_mem.
5443 * getgrent() doesn't even have a _r version
5444 * but the gr_mem is poisonous anyway.
5445 * So yes, you cannot get the list of group
5446 * members if building multithreaded in UNICOS/mk. */
5447 for (elem = grent->gr_mem; elem && *elem; elem++) {
5448 sv_catpv(sv, *elem);
5450 sv_catpvn(sv, " ", 1);
5457 DIE(aTHX_ PL_no_func, "getgrent");
5463 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5468 DIE(aTHX_ PL_no_func, "setgrent");
5474 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5479 DIE(aTHX_ PL_no_func, "endgrent");
5489 if (!(tmps = PerlProc_getlogin()))
5491 PUSHp(tmps, strlen(tmps));
5494 DIE(aTHX_ PL_no_func, "getlogin");
5498 /* Miscellaneous. */
5503 dSP; dMARK; dORIGMARK; dTARGET;
5504 register I32 items = SP - MARK;
5505 unsigned long a[20];
5511 while (++MARK <= SP) {
5512 if (SvTAINTED(*MARK)) {
5518 TAINT_PROPER("syscall");
5521 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5522 * or where sizeof(long) != sizeof(char*). But such machines will
5523 * not likely have syscall implemented either, so who cares?
5525 while (++MARK <= SP) {
5526 if (SvNIOK(*MARK) || !i)
5527 a[i++] = SvIV(*MARK);
5528 else if (*MARK == &PL_sv_undef)
5531 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5537 DIE(aTHX_ "Too many args to syscall");
5539 DIE(aTHX_ "Too few args to syscall");
5541 retval = syscall(a[0]);
5544 retval = syscall(a[0],a[1]);
5547 retval = syscall(a[0],a[1],a[2]);
5550 retval = syscall(a[0],a[1],a[2],a[3]);
5553 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5556 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5559 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5562 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5566 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5569 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5572 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5576 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5580 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5584 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5585 a[10],a[11],a[12],a[13]);
5587 #endif /* atarist */
5593 DIE(aTHX_ PL_no_func, "syscall");
5597 #ifdef FCNTL_EMULATE_FLOCK
5599 /* XXX Emulate flock() with fcntl().
5600 What's really needed is a good file locking module.
5604 fcntl_emulate_flock(int fd, int operation)
5608 switch (operation & ~LOCK_NB) {
5610 flock.l_type = F_RDLCK;
5613 flock.l_type = F_WRLCK;
5616 flock.l_type = F_UNLCK;
5622 flock.l_whence = SEEK_SET;
5623 flock.l_start = flock.l_len = (Off_t)0;
5625 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5628 #endif /* FCNTL_EMULATE_FLOCK */
5630 #ifdef LOCKF_EMULATE_FLOCK
5632 /* XXX Emulate flock() with lockf(). This is just to increase
5633 portability of scripts. The calls are not completely
5634 interchangeable. What's really needed is a good file
5638 /* The lockf() constants might have been defined in <unistd.h>.
5639 Unfortunately, <unistd.h> causes troubles on some mixed
5640 (BSD/POSIX) systems, such as SunOS 4.1.3.
5642 Further, the lockf() constants aren't POSIX, so they might not be
5643 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5644 just stick in the SVID values and be done with it. Sigh.
5648 # define F_ULOCK 0 /* Unlock a previously locked region */
5651 # define F_LOCK 1 /* Lock a region for exclusive use */
5654 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5657 # define F_TEST 3 /* Test a region for other processes locks */
5661 lockf_emulate_flock(int fd, int operation)
5667 /* flock locks entire file so for lockf we need to do the same */
5669 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5670 if (pos > 0) /* is seekable and needs to be repositioned */
5671 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5672 pos = -1; /* seek failed, so don't seek back afterwards */
5675 switch (operation) {
5677 /* LOCK_SH - get a shared lock */
5679 /* LOCK_EX - get an exclusive lock */
5681 i = lockf (fd, F_LOCK, 0);
5684 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5685 case LOCK_SH|LOCK_NB:
5686 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5687 case LOCK_EX|LOCK_NB:
5688 i = lockf (fd, F_TLOCK, 0);
5690 if ((errno == EAGAIN) || (errno == EACCES))
5691 errno = EWOULDBLOCK;
5694 /* LOCK_UN - unlock (non-blocking is a no-op) */
5696 case LOCK_UN|LOCK_NB:
5697 i = lockf (fd, F_ULOCK, 0);
5700 /* Default - can't decipher operation */
5707 if (pos > 0) /* need to restore position of the handle */
5708 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5713 #endif /* LOCKF_EMULATE_FLOCK */