3 * Copyright (c) 1991-2002, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * But only a short way ahead its floor and the walls on either side were
12 * cloven by a great fissure, out of which the red glare came, now leaping
13 * up, now dying down into darkness; and all the while far below there was
14 * a rumour and a trouble as of great engines throbbing and labouring.
18 #define PERL_IN_PP_SYS_C
22 /* Shadow password support for solaris - pdo@cs.umd.edu
23 * Not just Solaris: at least HP-UX, IRIX, Linux.
24 * The API is from SysV.
26 * There are at least two more shadow interfaces,
27 * see the comments in pp_gpwent().
31 /* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
32 * and another MAXINT from "perl.h" <- <sys/param.h>. */
40 extern "C" int syscall(unsigned long,...);
45 # include <sys/wait.h>
49 # include <sys/resource.h>
58 # include <sys/select.h>
62 /* XXX Configure test needed.
63 h_errno might not be a simple 'int', especially for multi-threaded
64 applications, see "extern int errno in perl.h". Creating such
65 a test requires taking into account the differences between
66 compiling multithreaded and singlethreaded ($ccflags et al).
67 HOST_NOT_FOUND is typically defined in <netdb.h>.
69 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
78 struct passwd *getpwnam (char *);
79 struct passwd *getpwuid (Uid_t);
84 struct passwd *getpwent (void);
85 #elif defined (VMS) && defined (my_getpwent)
86 struct passwd *Perl_my_getpwent (void);
95 struct group *getgrnam (char *);
96 struct group *getgrgid (Gid_t);
100 struct group *getgrent (void);
106 # if defined(_MSC_VER) || defined(__MINGW32__)
107 # include <sys/utime.h>
114 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
117 # define my_chsize PerlLIO_chsize
122 #else /* no flock() */
124 /* fcntl.h might not have been included, even if it exists, because
125 the current Configure only sets I_FCNTL if it's needed to pick up
126 the *_OK constants. Make sure it has been included before testing
127 the fcntl() locking constants. */
128 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
132 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
133 # define FLOCK fcntl_emulate_flock
134 # define FCNTL_EMULATE_FLOCK
135 # else /* no flock() or fcntl(F_SETLK,...) */
137 # define FLOCK lockf_emulate_flock
138 # define LOCKF_EMULATE_FLOCK
140 # endif /* no flock() or fcntl(F_SETLK,...) */
143 static int FLOCK (int, int);
146 * These are the flock() constants. Since this sytems doesn't have
147 * flock(), the values of the constants are probably not available.
161 # endif /* emulating flock() */
163 #endif /* no flock() */
166 static char zero_but_true[ZBTLEN + 1] = "0 but true";
168 #if defined(I_SYS_ACCESS) && !defined(R_OK)
169 # include <sys/access.h>
172 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
173 # define FD_CLOEXEC 1 /* NeXT needs this */
176 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
177 #undef PERL_EFF_ACCESS_W_OK
178 #undef PERL_EFF_ACCESS_X_OK
180 /* F_OK unused: if stat() cannot find it... */
182 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
183 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
184 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
185 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
186 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
189 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
190 # ifdef I_SYS_SECURITY
191 # include <sys/security.h>
195 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
196 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
197 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
200 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
201 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
202 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
206 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
208 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
209 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
210 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
213 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
214 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
215 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
218 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
220 Uid_t ruid = getuid();
221 Uid_t euid = geteuid();
222 Gid_t rgid = getgid();
223 Gid_t egid = getegid();
227 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
228 Perl_croak(aTHX_ "switching effective uid is not implemented");
231 if (setreuid(euid, ruid))
234 if (setresuid(euid, ruid, (Uid_t)-1))
237 Perl_croak(aTHX_ "entering effective uid failed");
240 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
241 Perl_croak(aTHX_ "switching effective gid is not implemented");
244 if (setregid(egid, rgid))
247 if (setresgid(egid, rgid, (Gid_t)-1))
250 Perl_croak(aTHX_ "entering effective gid failed");
253 res = access(path, mode);
256 if (setreuid(ruid, euid))
259 if (setresuid(ruid, euid, (Uid_t)-1))
262 Perl_croak(aTHX_ "leaving effective uid failed");
265 if (setregid(rgid, egid))
268 if (setresgid(rgid, egid, (Gid_t)-1))
271 Perl_croak(aTHX_ "leaving effective gid failed");
276 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
277 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
278 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
281 #if !defined(PERL_EFF_ACCESS_R_OK)
282 /* With it or without it: anyway you get a warning: either that
283 it is unused, or it is declared static and never defined.
286 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
288 Perl_croak(aTHX_ "switching effective uid is not implemented");
304 if (PL_op->op_private & OPpOPEN_IN_RAW)
306 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
308 fp = PerlProc_popen(tmps, mode);
311 if (PL_curcop->cop_io) {
312 type = SvPV_nolen(PL_curcop->cop_io);
315 PerlIO_apply_layers(aTHX_ fp,mode,type);
317 if (gimme == G_VOID) {
319 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
323 else if (gimme == G_SCALAR) {
324 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
325 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
336 if (sv_gets(sv, fp, 0) == Nullch) {
340 XPUSHs(sv_2mortal(sv));
341 if (SvLEN(sv) - SvCUR(sv) > 20) {
342 SvLEN_set(sv, SvCUR(sv)+1);
343 Renew(SvPVX(sv), SvLEN(sv), char);
348 STATUS_NATIVE_SET(PerlProc_pclose(fp));
349 TAINT; /* "I believe that this is not gratuitous!" */
352 STATUS_NATIVE_SET(-1);
353 if (gimme == G_SCALAR)
363 tryAMAGICunTARGET(iter, -1);
365 /* Note that we only ever get here if File::Glob fails to load
366 * without at the same time croaking, for some reason, or if
367 * perl was built with PERL_EXTERNAL_GLOB */
374 * The external globbing program may use things we can't control,
375 * so for security reasons we must assume the worst.
378 taint_proper(PL_no_security, "glob");
382 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
383 PL_last_in_gv = (GV*)*PL_stack_sp--;
385 SAVESPTR(PL_rs); /* This is not permanent, either. */
386 PL_rs = sv_2mortal(newSVpvn("\000", 1));
389 *SvPVX(PL_rs) = '\n';
393 result = do_readline();
400 PL_last_in_gv = cGVOP_gv;
401 return do_readline();
410 if (SP - MARK != 1) {
412 do_join(TARG, &PL_sv_no, MARK, SP);
419 tmps = SvPV(tmpsv, len);
422 (void)SvUPGRADE(error, SVt_PV);
423 if (SvPOK(error) && SvCUR(error))
424 sv_catpv(error, "\t...caught");
426 tmps = SvPV(tmpsv, len);
429 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
431 Perl_warn(aTHX_ "%"SVf, tmpsv);
443 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
445 if (SP - MARK != 1) {
447 do_join(TARG, &PL_sv_no, MARK, SP);
449 tmps = SvPV(tmpsv, len);
455 tmps = (SvROK(tmpsv) && PL_in_eval) ? Nullch : SvPV(tmpsv, len);
459 (void)SvUPGRADE(error, SVt_PV);
460 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
462 SvSetSV(error,tmpsv);
463 else if (sv_isobject(error)) {
464 HV *stash = SvSTASH(SvRV(error));
465 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
467 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
468 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
475 call_sv((SV*)GvCV(gv),
476 G_SCALAR|G_EVAL|G_KEEPERR);
477 sv_setsv(error,*PL_stack_sp--);
480 DIE(aTHX_ Nullformat);
483 if (SvPOK(error) && SvCUR(error))
484 sv_catpv(error, "\t...propagated");
486 tmps = SvPV(tmpsv, len);
490 tmpsv = sv_2mortal(newSVpvn("Died", 4));
492 DIE(aTHX_ "%"SVf, tmpsv);
512 DIE(aTHX_ PL_no_usym, "filehandle");
513 if ((io = GvIOp(gv)))
514 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
516 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
517 /* Method's args are same as ours ... */
518 /* ... except handle is replaced by the object */
519 *MARK-- = SvTIED_obj((SV*)io, mg);
523 call_method("OPEN", G_SCALAR);
536 tmps = SvPV(sv, len);
537 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
540 PUSHi( (I32)PL_forkprocess );
541 else if (PL_forkprocess == 0) /* we are a new child */
560 if (gv && (io = GvIO(gv))
561 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
564 XPUSHs(SvTIED_obj((SV*)io, mg));
567 call_method("CLOSE", G_SCALAR);
573 PUSHs(boolSV(do_close(gv, TRUE)));
593 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
594 DIE(aTHX_ PL_no_usym, "filehandle");
599 do_close(rgv, FALSE);
601 do_close(wgv, FALSE);
603 if (PerlProc_pipe(fd) < 0)
606 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
607 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
608 IoIFP(wstio) = IoOFP(wstio);
609 IoTYPE(rstio) = IoTYPE_RDONLY;
610 IoTYPE(wstio) = IoTYPE_WRONLY;
612 if (!IoIFP(rstio) || !IoOFP(wstio)) {
613 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
614 else PerlLIO_close(fd[0]);
615 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
616 else PerlLIO_close(fd[1]);
619 #if defined(HAS_FCNTL) && defined(F_SETFD)
620 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
621 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
628 DIE(aTHX_ PL_no_func, "pipe");
644 if (gv && (io = GvIO(gv))
645 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
648 XPUSHs(SvTIED_obj((SV*)io, mg));
651 call_method("FILENO", G_SCALAR);
657 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
658 /* Can't do this because people seem to do things like
659 defined(fileno($foo)) to check whether $foo is a valid fh.
660 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
661 report_evil_fh(gv, io, PL_op->op_type);
666 PUSHi(PerlIO_fileno(fp));
677 anum = PerlLIO_umask(0);
678 (void)PerlLIO_umask(anum);
681 anum = PerlLIO_umask(POPi);
682 TAINT_PROPER("umask");
685 /* Only DIE if trying to restrict permissions on `user' (self).
686 * Otherwise it's harmless and more useful to just return undef
687 * since 'group' and 'other' concepts probably don't exist here. */
688 if (MAXARG >= 1 && (POPi & 0700))
689 DIE(aTHX_ "umask not implemented");
690 XPUSHs(&PL_sv_undef);
712 if (gv && (io = GvIO(gv))
713 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
716 XPUSHs(SvTIED_obj((SV*)io, mg));
721 call_method("BINMODE", G_SCALAR);
728 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
729 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
730 report_evil_fh(gv, io, PL_op->op_type);
735 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
736 (discp) ? SvPV_nolen(discp) : Nullch)) {
754 I32 markoff = MARK - PL_stack_base;
756 int how = PERL_MAGIC_tied;
761 switch(SvTYPE(varsv)) {
763 methname = "TIEHASH";
764 HvEITER((HV *)varsv) = Null(HE *);
767 methname = "TIEARRAY";
770 #ifdef GV_UNIQUE_CHECK
771 if (GvUNIQUE((GV*)varsv)) {
772 Perl_croak(aTHX_ "Attempt to tie unique GV");
775 methname = "TIEHANDLE";
776 how = PERL_MAGIC_tiedscalar;
777 /* For tied filehandles, we apply tiedscalar magic to the IO
778 slot of the GP rather than the GV itself. AMS 20010812 */
780 GvIOp(varsv) = newIO();
781 varsv = (SV *)GvIOp(varsv);
784 methname = "TIESCALAR";
785 how = PERL_MAGIC_tiedscalar;
789 if (sv_isobject(*MARK)) {
791 PUSHSTACKi(PERLSI_MAGIC);
793 EXTEND(SP,(I32)items);
797 call_method(methname, G_SCALAR);
800 /* Not clear why we don't call call_method here too.
801 * perhaps to get different error message ?
803 stash = gv_stashsv(*MARK, FALSE);
804 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
805 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
806 methname, SvPV(*MARK,n_a));
809 PUSHSTACKi(PERLSI_MAGIC);
811 EXTEND(SP,(I32)items);
815 call_sv((SV*)GvCV(gv), G_SCALAR);
821 if (sv_isobject(sv)) {
822 sv_unmagic(varsv, how);
823 /* Croak if a self-tie on an aggregate is attempted. */
824 if (varsv == SvRV(sv) &&
825 (SvTYPE(sv) == SVt_PVAV ||
826 SvTYPE(sv) == SVt_PVHV))
828 "Self-ties of arrays and hashes are not supported");
829 sv_magic(varsv, sv, how, Nullch, 0);
832 SP = PL_stack_base + markoff;
842 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
843 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
845 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
848 if ((mg = SvTIED_mg(sv, how))) {
849 SV *obj = SvRV(mg->mg_obj);
853 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
854 isGV(gv) && (cv = GvCV(gv))) {
856 XPUSHs(SvTIED_obj((SV*)gv, mg));
857 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
860 call_sv((SV *)cv, G_VOID);
864 else if (ckWARN(WARN_UNTIE)) {
865 if (mg && SvREFCNT(obj) > 1)
866 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
867 "untie attempted while %"UVuf" inner references still exist",
868 (UV)SvREFCNT(obj) - 1 ) ;
871 sv_unmagic(sv, how) ;
881 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
882 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
884 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
887 if ((mg = SvTIED_mg(sv, how))) {
888 SV *osv = SvTIED_obj(sv, mg);
889 if (osv == mg->mg_obj)
890 osv = sv_mortalcopy(osv);
908 sv = sv_mortalcopy(&PL_sv_no);
909 sv_setpv(sv, "AnyDBM_File");
910 stash = gv_stashsv(sv, FALSE);
911 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
913 require_pv("AnyDBM_File.pm");
915 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
916 DIE(aTHX_ "No dbm on this machine");
926 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
928 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
931 call_sv((SV*)GvCV(gv), G_SCALAR);
934 if (!sv_isobject(TOPs)) {
939 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
942 call_sv((SV*)GvCV(gv), G_SCALAR);
946 if (sv_isobject(TOPs)) {
947 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
948 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
970 struct timeval timebuf;
971 struct timeval *tbuf = &timebuf;
975 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
980 # if BYTEORDER & 0xf0000
981 # define ORDERBYTE (0x88888888 - BYTEORDER)
983 # define ORDERBYTE (0x4444 - BYTEORDER)
989 for (i = 1; i <= 3; i++) {
997 /* little endians can use vecs directly */
998 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1005 masksize = NFDBITS / NBBY;
1007 masksize = sizeof(long); /* documented int, everyone seems to use long */
1009 Zero(&fd_sets[0], 4, char*);
1012 # if SELECT_MIN_BITS > 1
1013 /* If SELECT_MIN_BITS is greater than one we most probably will want
1014 * to align the sizes with SELECT_MIN_BITS/8 because for example
1015 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1016 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1017 * on (sets/tests/clears bits) is 32 bits. */
1018 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1020 growsize = sizeof(fd_set);
1028 timebuf.tv_sec = (long)value;
1029 value -= (NV)timebuf.tv_sec;
1030 timebuf.tv_usec = (long)(value * 1000000.0);
1033 tbuf = Null(struct timeval*);
1035 for (i = 1; i <= 3; i++) {
1041 else if (!SvPOK(sv))
1042 SvPV_force(sv,n_a); /* force string conversion */
1045 Sv_Grow(sv, growsize);
1049 while (++j <= growsize) {
1053 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1055 New(403, fd_sets[i], growsize, char);
1056 for (offset = 0; offset < growsize; offset += masksize) {
1057 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1058 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1061 fd_sets[i] = SvPVX(sv);
1065 nfound = PerlSock_select(
1067 (Select_fd_set_t) fd_sets[1],
1068 (Select_fd_set_t) fd_sets[2],
1069 (Select_fd_set_t) fd_sets[3],
1071 for (i = 1; i <= 3; i++) {
1074 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1076 for (offset = 0; offset < growsize; offset += masksize) {
1077 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1078 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1080 Safefree(fd_sets[i]);
1087 if (GIMME == G_ARRAY && tbuf) {
1088 value = (NV)(timebuf.tv_sec) +
1089 (NV)(timebuf.tv_usec) / 1000000.0;
1090 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1091 sv_setnv(sv, value);
1095 DIE(aTHX_ "select not implemented");
1100 Perl_setdefout(pTHX_ GV *gv)
1103 (void)SvREFCNT_inc(gv);
1105 SvREFCNT_dec(PL_defoutgv);
1112 GV *newdefout, *egv;
1115 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1117 egv = GvEGV(PL_defoutgv);
1122 XPUSHs(&PL_sv_undef);
1124 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1125 if (gvp && *gvp == egv) {
1126 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1130 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1135 if (!GvIO(newdefout))
1136 gv_IOadd(newdefout);
1137 setdefout(newdefout);
1155 if (gv && (io = GvIO(gv))
1156 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1158 I32 gimme = GIMME_V;
1160 XPUSHs(SvTIED_obj((SV*)io, mg));
1163 call_method("GETC", gimme);
1166 if (gimme == G_SCALAR)
1167 SvSetMagicSV_nosteal(TARG, TOPs);
1170 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1171 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1172 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1173 report_evil_fh(gv, io, PL_op->op_type);
1177 sv_setpv(TARG, " ");
1178 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1179 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1180 /* Find out how many bytes the char needs */
1181 Size_t len = UTF8SKIP(SvPVX(TARG));
1184 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1185 SvCUR_set(TARG,1+len);
1195 return pp_sysread();
1199 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1201 register PERL_CONTEXT *cx;
1202 I32 gimme = GIMME_V;
1203 AV* padlist = CvPADLIST(cv);
1204 SV** svp = AvARRAY(padlist);
1210 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1212 SAVEVPTR(PL_curpad);
1213 PL_curpad = AvARRAY((AV*)svp[1]);
1215 setdefout(gv); /* locally select filehandle so $% et al work */
1248 SV *tmpsv = sv_newmortal();
1249 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1250 name = SvPV_nolen(tmpsv);
1253 DIE(aTHX_ "Undefined format \"%s\" called", name);
1254 DIE(aTHX_ "Not a format reference");
1257 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1259 IoFLAGS(io) &= ~IOf_DIDTOP;
1260 return doform(cv,gv,PL_op->op_next);
1266 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1267 register IO *io = GvIOp(gv);
1268 PerlIO *ofp = IoOFP(io);
1272 register PERL_CONTEXT *cx;
1274 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1275 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1278 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1279 PL_formtarget != PL_toptarget)
1283 if (!IoTOP_GV(io)) {
1287 if (!IoTOP_NAME(io)) {
1288 if (!IoFMT_NAME(io))
1289 IoFMT_NAME(io) = savepv(GvNAME(gv));
1290 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1291 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1292 if ((topgv && GvFORM(topgv)) ||
1293 !gv_fetchpv("top",FALSE,SVt_PVFM))
1294 IoTOP_NAME(io) = savepv(SvPVX(topname));
1296 IoTOP_NAME(io) = savepv("top");
1298 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1299 if (!topgv || !GvFORM(topgv)) {
1300 IoLINES_LEFT(io) = 100000000;
1303 IoTOP_GV(io) = topgv;
1305 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1306 I32 lines = IoLINES_LEFT(io);
1307 char *s = SvPVX(PL_formtarget);
1308 if (lines <= 0) /* Yow, header didn't even fit!!! */
1310 while (lines-- > 0) {
1311 s = strchr(s, '\n');
1317 STRLEN save = SvCUR(PL_formtarget);
1318 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1319 do_print(PL_formtarget, ofp);
1320 SvCUR_set(PL_formtarget, save);
1321 sv_chop(PL_formtarget, s);
1322 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1325 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1326 do_print(PL_formfeed, ofp);
1327 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1329 PL_formtarget = PL_toptarget;
1330 IoFLAGS(io) |= IOf_DIDTOP;
1333 DIE(aTHX_ "bad top format reference");
1338 SV *sv = sv_newmortal();
1339 gv_efullname4(sv, fgv, Nullch, FALSE);
1340 name = SvPV_nolen(sv);
1343 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1346 DIE(aTHX_ "Undefined top format called");
1350 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1351 return doform(cv,gv,PL_op);
1355 POPBLOCK(cx,PL_curpm);
1361 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1363 /* integrate with report_evil_fh()? */
1366 SV* sv = sv_newmortal();
1367 gv_efullname4(sv, gv, Nullch, FALSE);
1368 name = SvPV_nolen(sv);
1371 Perl_warner(aTHX_ packWARN(WARN_IO),
1372 "Filehandle %s opened only for input", name);
1374 Perl_warner(aTHX_ packWARN(WARN_IO),
1375 "Filehandle opened only for input");
1377 else if (ckWARN(WARN_CLOSED))
1378 report_evil_fh(gv, io, PL_op->op_type);
1383 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1384 if (ckWARN(WARN_IO))
1385 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1387 if (!do_print(PL_formtarget, fp))
1390 FmLINES(PL_formtarget) = 0;
1391 SvCUR_set(PL_formtarget, 0);
1392 *SvEND(PL_formtarget) = '\0';
1393 if (IoFLAGS(io) & IOf_FLUSH)
1394 (void)PerlIO_flush(fp);
1399 PL_formtarget = PL_bodytarget;
1401 return pop_return();
1406 dSP; dMARK; dORIGMARK;
1413 if (PL_op->op_flags & OPf_STACKED)
1418 if (gv && (io = GvIO(gv))
1419 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1421 if (MARK == ORIGMARK) {
1424 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1428 *MARK = SvTIED_obj((SV*)io, mg);
1431 call_method("PRINTF", G_SCALAR);
1434 MARK = ORIGMARK + 1;
1441 if (!(io = GvIO(gv))) {
1442 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1443 report_evil_fh(gv, io, PL_op->op_type);
1444 SETERRNO(EBADF,RMS$_IFI);
1447 else if (!(fp = IoOFP(io))) {
1448 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1449 /* integrate with report_evil_fh()? */
1453 gv_efullname4(sv, gv, Nullch, FALSE);
1454 name = SvPV_nolen(sv);
1457 Perl_warner(aTHX_ packWARN(WARN_IO),
1458 "Filehandle %s opened only for input", name);
1460 Perl_warner(aTHX_ packWARN(WARN_IO),
1461 "Filehandle opened only for input");
1463 else if (ckWARN(WARN_CLOSED))
1464 report_evil_fh(gv, io, PL_op->op_type);
1466 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1470 do_sprintf(sv, SP - MARK, MARK + 1);
1471 if (!do_print(sv, fp))
1474 if (IoFLAGS(io) & IOf_FLUSH)
1475 if (PerlIO_flush(fp) == EOF)
1486 PUSHs(&PL_sv_undef);
1507 /* Need TIEHANDLE method ? */
1509 tmps = SvPV(sv, len);
1510 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1511 IoLINES(GvIOp(gv)) = 0;
1515 PUSHs(&PL_sv_undef);
1522 dSP; dMARK; dORIGMARK; dTARGET;
1529 Sock_size_t bufsize;
1536 bool charstart = FALSE;
1537 STRLEN charskip = 0;
1541 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1542 && gv && (io = GvIO(gv))
1543 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1548 *MARK = SvTIED_obj((SV*)io, mg);
1550 call_method("READ", G_SCALAR);
1563 sv_setpvn(bufsv, "", 0);
1564 length = SvIVx(*++MARK);
1567 offset = SvIVx(*++MARK);
1571 if (!io || !IoIFP(io))
1573 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1574 buffer = SvPVutf8_force(bufsv, blen);
1575 /* UTF8 may not have been set if they are all low bytes */
1579 buffer = SvPV_force(bufsv, blen);
1582 DIE(aTHX_ "Negative length");
1590 if (PL_op->op_type == OP_RECV) {
1591 char namebuf[MAXPATHLEN];
1592 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1593 bufsize = sizeof (struct sockaddr_in);
1595 bufsize = sizeof namebuf;
1597 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1601 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1602 /* 'offset' means 'flags' here */
1603 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1604 (struct sockaddr *)namebuf, &bufsize);
1608 /* Bogus return without padding */
1609 bufsize = sizeof (struct sockaddr_in);
1611 SvCUR_set(bufsv, count);
1612 *SvEND(bufsv) = '\0';
1613 (void)SvPOK_only(bufsv);
1617 /* This should not be marked tainted if the fp is marked clean */
1618 if (!(IoFLAGS(io) & IOf_UNTAINT))
1619 SvTAINTED_on(bufsv);
1621 sv_setpvn(TARG, namebuf, bufsize);
1626 if (PL_op->op_type == OP_RECV)
1627 DIE(aTHX_ PL_no_sock_func, "recv");
1629 if (DO_UTF8(bufsv)) {
1630 /* offset adjust in characters not bytes */
1631 blen = sv_len_utf8(bufsv);
1634 if (-offset > (int)blen)
1635 DIE(aTHX_ "Offset outside string");
1638 if (DO_UTF8(bufsv)) {
1639 /* convert offset-as-chars to offset-as-bytes */
1640 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1643 bufsize = SvCUR(bufsv);
1644 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1645 if (offset > bufsize) { /* Zero any newly allocated space */
1646 Zero(buffer+bufsize, offset-bufsize, char);
1648 buffer = buffer + offset;
1650 if (PL_op->op_type == OP_SYSREAD) {
1651 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1652 if (IoTYPE(io) == IoTYPE_SOCKET) {
1653 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1659 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1664 #ifdef HAS_SOCKET__bad_code_maybe
1665 if (IoTYPE(io) == IoTYPE_SOCKET) {
1666 char namebuf[MAXPATHLEN];
1667 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1668 bufsize = sizeof (struct sockaddr_in);
1670 bufsize = sizeof namebuf;
1672 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1673 (struct sockaddr *)namebuf, &bufsize);
1678 count = PerlIO_read(IoIFP(io), buffer, length);
1679 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1680 if (count == 0 && PerlIO_error(IoIFP(io)))
1684 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1686 /* integrate with report_evil_fh()? */
1689 SV* sv = sv_newmortal();
1690 gv_efullname4(sv, gv, Nullch, FALSE);
1691 name = SvPV_nolen(sv);
1694 Perl_warner(aTHX_ packWARN(WARN_IO),
1695 "Filehandle %s opened only for output", name);
1697 Perl_warner(aTHX_ packWARN(WARN_IO),
1698 "Filehandle opened only for output");
1702 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1703 *SvEND(bufsv) = '\0';
1704 (void)SvPOK_only(bufsv);
1705 if (fp_utf8 && !IN_BYTES) {
1706 /* Look at utf8 we got back and count the characters */
1707 char *bend = buffer + count;
1708 while (buffer < bend) {
1710 skip = UTF8SKIP(buffer);
1713 if (buffer - charskip + skip > bend) {
1714 /* partial character - try for rest of it */
1715 length = skip - (bend-buffer);
1716 offset = bend - SvPVX(bufsv);
1728 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1729 provided amount read (count) was what was requested (length)
1731 if (got < wanted && count == length) {
1732 length = wanted - got;
1733 offset = bend - SvPVX(bufsv);
1736 /* return value is character count */
1741 /* This should not be marked tainted if the fp is marked clean */
1742 if (!(IoFLAGS(io) & IOf_UNTAINT))
1743 SvTAINTED_on(bufsv);
1756 int items = (SP - PL_stack_base) - TOPMARK;
1760 sv = sv_2mortal(newSViv(sv_len(*SP)));
1769 dSP; dMARK; dORIGMARK; dTARGET;
1780 if (PL_op->op_type == OP_SYSWRITE
1781 && gv && (io = GvIO(gv))
1782 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1787 *MARK = SvTIED_obj((SV*)io, mg);
1789 call_method("WRITE", G_SCALAR);
1800 #if Size_t_size > IVSIZE
1801 length = (Size_t)SvNVx(*++MARK);
1803 length = (Size_t)SvIVx(*++MARK);
1805 if ((SSize_t)length < 0)
1806 DIE(aTHX_ "Negative length");
1809 if (!io || !IoIFP(io)) {
1811 if (ckWARN(WARN_CLOSED))
1812 report_evil_fh(gv, io, PL_op->op_type);
1816 if (PerlIO_isutf8(IoIFP(io))) {
1817 buffer = SvPVutf8(bufsv, blen);
1821 sv_utf8_downgrade(bufsv, FALSE);
1822 buffer = SvPV(bufsv, blen);
1825 if (PL_op->op_type == OP_SYSWRITE) {
1827 if (DO_UTF8(bufsv)) {
1828 /* length and offset are in chars */
1829 blen = sv_len_utf8(bufsv);
1832 offset = SvIVx(*++MARK);
1834 if (-offset > (IV)blen)
1835 DIE(aTHX_ "Offset outside string");
1837 } else if (offset >= (IV)blen && blen > 0)
1838 DIE(aTHX_ "Offset outside string");
1841 if (length > blen - offset)
1842 length = blen - offset;
1843 if (DO_UTF8(bufsv)) {
1844 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1845 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1848 buffer = buffer+offset;
1850 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1851 if (IoTYPE(io) == IoTYPE_SOCKET) {
1852 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1858 /* See the note at doio.c:do_print about filesize limits. --jhi */
1859 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1864 else if (SP > MARK) {
1867 sockbuf = SvPVx(*++MARK, mlen);
1868 /* length is really flags */
1869 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1870 length, (struct sockaddr *)sockbuf, mlen);
1873 /* length is really flags */
1874 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1877 DIE(aTHX_ PL_no_sock_func, "send");
1883 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1884 #if Size_t_size > IVSIZE
1898 return pp_sysread();
1909 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1911 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1913 if (io && !IoIFP(io)) {
1914 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1916 IoFLAGS(io) &= ~IOf_START;
1917 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1918 sv_setpvn(GvSV(gv), "-", 1);
1919 SvSETMAGIC(GvSV(gv));
1921 else if (!nextargv(gv))
1926 gv = PL_last_in_gv; /* eof */
1929 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1931 if (gv && (io = GvIO(gv))
1932 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1935 XPUSHs(SvTIED_obj((SV*)io, mg));
1938 call_method("EOF", G_SCALAR);
1944 PUSHs(boolSV(!gv || do_eof(gv)));
1958 gv = PL_last_in_gv = (GV*)POPs;
1960 if (gv && (io = GvIO(gv))
1961 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1964 XPUSHs(SvTIED_obj((SV*)io, mg));
1967 call_method("TELL", G_SCALAR);
1973 #if LSEEKSIZE > IVSIZE
1974 PUSHn( do_tell(gv) );
1976 PUSHi( do_tell(gv) );
1983 return pp_sysseek();
1992 #if LSEEKSIZE > IVSIZE
1993 Off_t offset = (Off_t)SvNVx(POPs);
1995 Off_t offset = (Off_t)SvIVx(POPs);
1999 gv = PL_last_in_gv = (GV*)POPs;
2001 if (gv && (io = GvIO(gv))
2002 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2005 XPUSHs(SvTIED_obj((SV*)io, mg));
2006 #if LSEEKSIZE > IVSIZE
2007 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2009 XPUSHs(sv_2mortal(newSViv(offset)));
2011 XPUSHs(sv_2mortal(newSViv(whence)));
2014 call_method("SEEK", G_SCALAR);
2020 if (PL_op->op_type == OP_SEEK)
2021 PUSHs(boolSV(do_seek(gv, offset, whence)));
2023 Off_t sought = do_sysseek(gv, offset, whence);
2025 PUSHs(&PL_sv_undef);
2028 #if LSEEKSIZE > IVSIZE
2033 : newSVpvn(zero_but_true, ZBTLEN);
2034 PUSHs(sv_2mortal(sv));
2043 /* There seems to be no consensus on the length type of truncate()
2044 * and ftruncate(), both off_t and size_t have supporters. In
2045 * general one would think that when using large files, off_t is
2046 * at least as wide as size_t, so using an off_t should be okay. */
2047 /* XXX Configure probe for the length type of *truncate() needed XXX */
2050 #if Size_t_size > IVSIZE
2055 /* Checking for length < 0 is problematic as the type might or
2056 * might not be signed: if it is not, clever compilers will moan. */
2057 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2059 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2065 if (PL_op->op_flags & OPf_SPECIAL) {
2066 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2069 TAINT_PROPER("truncate");
2070 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2073 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2075 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2077 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2086 if (SvTYPE(sv) == SVt_PVGV) {
2087 tmpgv = (GV*)sv; /* *main::FRED for example */
2090 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2091 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2095 name = SvPV(sv, n_a);
2096 TAINT_PROPER("truncate");
2098 if (truncate(name, len) < 0)
2104 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2107 if (my_chsize(tmpfd, len) < 0)
2109 PerlLIO_close(tmpfd);
2118 SETERRNO(EBADF,RMS$_IFI);
2122 DIE(aTHX_ "truncate not implemented");
2135 unsigned int func = POPu;
2136 int optype = PL_op->op_type;
2140 IO *io = gv ? GvIOn(gv) : 0;
2142 if (!io || !argsv || !IoIFP(io)) {
2143 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2144 report_evil_fh(gv, io, PL_op->op_type);
2145 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
2149 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2152 s = SvPV_force(argsv, len);
2153 need = IOCPARM_LEN(func);
2155 s = Sv_Grow(argsv, need + 1);
2156 SvCUR_set(argsv, need);
2159 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2162 retval = SvIV(argsv);
2163 s = INT2PTR(char*,retval); /* ouch */
2166 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2168 if (optype == OP_IOCTL)
2170 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2172 DIE(aTHX_ "ioctl is not implemented");
2176 #if defined(OS2) && defined(__EMX__)
2177 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2179 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2182 DIE(aTHX_ "fcntl is not implemented");
2186 if (s[SvCUR(argsv)] != 17)
2187 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2189 s[SvCUR(argsv)] = 0; /* put our null back */
2190 SvSETMAGIC(argsv); /* Assume it has changed */
2199 PUSHp(zero_but_true, ZBTLEN);
2219 if (gv && (io = GvIO(gv)))
2226 (void)PerlIO_flush(fp);
2227 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2230 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2231 report_evil_fh(gv, io, PL_op->op_type);
2233 SETERRNO(EBADF,RMS$_IFI);
2238 DIE(aTHX_ PL_no_func, "flock()");
2250 int protocol = POPi;
2256 io = gv ? GvIOn(gv) : NULL;
2259 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2260 report_evil_fh(gv, io, PL_op->op_type);
2262 do_close(gv, FALSE);
2263 SETERRNO(EBADF,LIB$_INVARG);
2268 do_close(gv, FALSE);
2270 TAINT_PROPER("socket");
2271 fd = PerlSock_socket(domain, type, protocol);
2274 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2275 IoOFP(io) = PerlIO_fdopen(fd, "w");
2276 IoTYPE(io) = IoTYPE_SOCKET;
2277 if (!IoIFP(io) || !IoOFP(io)) {
2278 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2279 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2280 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2283 #if defined(HAS_FCNTL) && defined(F_SETFD)
2284 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2288 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2293 DIE(aTHX_ PL_no_sock_func, "socket");
2299 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2305 int protocol = POPi;
2312 io1 = gv1 ? GvIOn(gv1) : NULL;
2313 io2 = gv2 ? GvIOn(gv2) : NULL;
2314 if (!gv1 || !gv2 || !io1 || !io2) {
2315 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2317 report_evil_fh(gv1, io1, PL_op->op_type);
2319 report_evil_fh(gv1, io2, PL_op->op_type);
2322 do_close(gv1, FALSE);
2324 do_close(gv2, FALSE);
2329 do_close(gv1, FALSE);
2331 do_close(gv2, FALSE);
2333 TAINT_PROPER("socketpair");
2334 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2336 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2337 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
2338 IoTYPE(io1) = IoTYPE_SOCKET;
2339 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2340 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
2341 IoTYPE(io2) = IoTYPE_SOCKET;
2342 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2343 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2344 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2345 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2346 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2347 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2348 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2351 #if defined(HAS_FCNTL) && defined(F_SETFD)
2352 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2353 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2358 DIE(aTHX_ PL_no_sock_func, "socketpair");
2366 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2367 extern void GETPRIVMODE();
2368 extern void GETUSERMODE();
2373 register IO *io = GvIOn(gv);
2377 int mpeprivmode = 0;
2380 if (!io || !IoIFP(io))
2383 addr = SvPV(addrsv, len);
2384 TAINT_PROPER("bind");
2385 #ifdef MPE /* Deal with MPE bind() peculiarities */
2386 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2387 /* The address *MUST* stupidly be zero. */
2388 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2389 /* PRIV mode is required to bind() to ports < 1024. */
2390 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2391 ((struct sockaddr_in *)addr)->sin_port > 0) {
2392 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2397 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2398 (struct sockaddr *)addr, len) >= 0)
2401 #ifdef MPE /* Switch back to USER mode */
2412 if (ckWARN(WARN_CLOSED))
2413 report_evil_fh(gv, io, PL_op->op_type);
2414 SETERRNO(EBADF,SS$_IVCHAN);
2417 DIE(aTHX_ PL_no_sock_func, "bind");
2428 register IO *io = GvIOn(gv);
2431 if (!io || !IoIFP(io))
2434 addr = SvPV(addrsv, len);
2435 TAINT_PROPER("connect");
2436 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2442 if (ckWARN(WARN_CLOSED))
2443 report_evil_fh(gv, io, PL_op->op_type);
2444 SETERRNO(EBADF,SS$_IVCHAN);
2447 DIE(aTHX_ PL_no_sock_func, "connect");
2457 register IO *io = gv ? GvIOn(gv) : NULL;
2459 if (!gv || !io || !IoIFP(io))
2462 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2468 if (ckWARN(WARN_CLOSED))
2469 report_evil_fh(gv, io, PL_op->op_type);
2470 SETERRNO(EBADF,SS$_IVCHAN);
2473 DIE(aTHX_ PL_no_sock_func, "listen");
2485 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2486 Sock_size_t len = sizeof saddr;
2499 if (!gstio || !IoIFP(gstio))
2503 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2507 do_close(ngv, FALSE);
2508 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2509 /* FIXME: we dup(fd) here so that refcounting of fd's does not inhibit
2510 fclose of IoOFP's FILE * - and hence leak memory.
2511 Special treatment of _this_ case of IoIFP != IoOFP seems wrong.
2513 IoOFP(nstio) = PerlIO_fdopen(fd2 = PerlLIO_dup(fd), "w");
2514 IoTYPE(nstio) = IoTYPE_SOCKET;
2515 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2516 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2517 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2518 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2521 #if defined(HAS_FCNTL) && defined(F_SETFD)
2522 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2523 fcntl(fd2, F_SETFD, fd2 > PL_maxsysfd); /* ensure close-on-exec */
2527 len = sizeof saddr; /* EPOC somehow truncates info */
2528 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2531 PUSHp((char *)&saddr, len);
2535 if (ckWARN(WARN_CLOSED))
2536 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2537 SETERRNO(EBADF,SS$_IVCHAN);
2543 DIE(aTHX_ PL_no_sock_func, "accept");
2553 register IO *io = GvIOn(gv);
2555 if (!io || !IoIFP(io))
2558 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2562 if (ckWARN(WARN_CLOSED))
2563 report_evil_fh(gv, io, PL_op->op_type);
2564 SETERRNO(EBADF,SS$_IVCHAN);
2567 DIE(aTHX_ PL_no_sock_func, "shutdown");
2574 return pp_ssockopt();
2576 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2584 int optype = PL_op->op_type;
2587 unsigned int optname;
2593 if (optype == OP_GSOCKOPT)
2594 sv = sv_2mortal(NEWSV(22, 257));
2597 optname = (unsigned int) POPi;
2598 lvl = (unsigned int) POPi;
2602 if (!io || !IoIFP(io))
2605 fd = PerlIO_fileno(IoIFP(io));
2609 (void)SvPOK_only(sv);
2613 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2628 aint = (int)SvIV(sv);
2632 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2641 if (ckWARN(WARN_CLOSED))
2642 report_evil_fh(gv, io, optype);
2643 SETERRNO(EBADF,SS$_IVCHAN);
2648 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2655 return pp_getpeername();
2657 DIE(aTHX_ PL_no_sock_func, "getsockname");
2665 int optype = PL_op->op_type;
2669 register IO *io = GvIOn(gv);
2672 if (!io || !IoIFP(io))
2675 sv = sv_2mortal(NEWSV(22, 257));
2676 (void)SvPOK_only(sv);
2680 fd = PerlIO_fileno(IoIFP(io));
2682 case OP_GETSOCKNAME:
2683 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2686 case OP_GETPEERNAME:
2687 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2689 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2691 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";
2692 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2693 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2694 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2695 sizeof(u_short) + sizeof(struct in_addr))) {
2702 #ifdef BOGUS_GETNAME_RETURN
2703 /* Interactive Unix, getpeername() and getsockname()
2704 does not return valid namelen */
2705 if (len == BOGUS_GETNAME_RETURN)
2706 len = sizeof(struct sockaddr);
2714 if (ckWARN(WARN_CLOSED))
2715 report_evil_fh(gv, io, optype);
2716 SETERRNO(EBADF,SS$_IVCHAN);
2721 DIE(aTHX_ PL_no_sock_func, "getpeername");
2740 if (PL_op->op_flags & OPf_REF) {
2742 if (PL_op->op_type == OP_LSTAT) {
2743 if (gv != PL_defgv) {
2744 if (ckWARN(WARN_IO))
2745 Perl_warner(aTHX_ packWARN(WARN_IO),
2746 "lstat() on filehandle %s", GvENAME(gv));
2747 } else if (PL_laststype != OP_LSTAT)
2748 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2752 if (gv != PL_defgv) {
2753 PL_laststype = OP_STAT;
2755 sv_setpv(PL_statname, "");
2756 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2757 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2759 if (PL_laststatval < 0) {
2760 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2761 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2767 if (SvTYPE(sv) == SVt_PVGV) {
2771 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2773 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2774 Perl_warner(aTHX_ packWARN(WARN_IO),
2775 "lstat() on filehandle %s", GvENAME(gv));
2778 sv_setpv(PL_statname, SvPV(sv,n_a));
2781 PL_laststype = PL_op->op_type;
2782 if (PL_op->op_type == OP_LSTAT)
2783 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2786 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2787 if (PL_laststatval < 0) {
2788 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2789 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2795 if (gimme != G_ARRAY) {
2796 if (gimme != G_VOID)
2797 XPUSHs(boolSV(max));
2803 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2804 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2805 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2806 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2807 #if Uid_t_size > IVSIZE
2808 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2810 # if Uid_t_sign <= 0
2811 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2813 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2816 #if Gid_t_size > IVSIZE
2817 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2819 # if Gid_t_sign <= 0
2820 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2822 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2825 #ifdef USE_STAT_RDEV
2826 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2828 PUSHs(sv_2mortal(newSVpvn("", 0)));
2830 #if Off_t_size > IVSIZE
2831 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2833 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2836 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2837 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2838 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2840 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2841 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2842 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2844 #ifdef USE_STAT_BLOCKS
2845 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2846 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2848 PUSHs(sv_2mortal(newSVpvn("", 0)));
2849 PUSHs(sv_2mortal(newSVpvn("", 0)));
2859 #if defined(HAS_ACCESS) && defined(R_OK)
2861 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2862 result = access(TOPpx, R_OK);
2877 if (cando(S_IRUSR, 0, &PL_statcache))
2886 #if defined(HAS_ACCESS) && defined(W_OK)
2888 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2889 result = access(TOPpx, W_OK);
2904 if (cando(S_IWUSR, 0, &PL_statcache))
2913 #if defined(HAS_ACCESS) && defined(X_OK)
2915 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2916 result = access(TOPpx, X_OK);
2931 if (cando(S_IXUSR, 0, &PL_statcache))
2940 #ifdef PERL_EFF_ACCESS_R_OK
2942 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2943 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2958 if (cando(S_IRUSR, 1, &PL_statcache))
2967 #ifdef PERL_EFF_ACCESS_W_OK
2969 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2970 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2985 if (cando(S_IWUSR, 1, &PL_statcache))
2994 #ifdef PERL_EFF_ACCESS_X_OK
2996 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2997 result = PERL_EFF_ACCESS_X_OK(TOPpx);
3012 if (cando(S_IXUSR, 1, &PL_statcache))
3019 I32 result = my_stat();
3028 return pp_ftrowned();
3033 I32 result = my_stat();
3037 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3045 I32 result = my_stat();
3049 if (PL_statcache.st_size == 0)
3056 I32 result = my_stat();
3060 #if Off_t_size > IVSIZE
3061 PUSHn(PL_statcache.st_size);
3063 PUSHi(PL_statcache.st_size);
3070 I32 result = my_stat();
3074 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3080 I32 result = my_stat();
3084 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3090 I32 result = my_stat();
3094 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3100 I32 result = my_stat();
3104 if (S_ISSOCK(PL_statcache.st_mode))
3111 I32 result = my_stat();
3115 if (S_ISCHR(PL_statcache.st_mode))
3122 I32 result = my_stat();
3126 if (S_ISBLK(PL_statcache.st_mode))
3133 I32 result = my_stat();
3137 if (S_ISREG(PL_statcache.st_mode))
3144 I32 result = my_stat();
3148 if (S_ISDIR(PL_statcache.st_mode))
3155 I32 result = my_stat();
3159 if (S_ISFIFO(PL_statcache.st_mode))
3166 I32 result = my_lstat();
3170 if (S_ISLNK(PL_statcache.st_mode))
3179 I32 result = my_stat();
3183 if (PL_statcache.st_mode & S_ISUID)
3193 I32 result = my_stat();
3197 if (PL_statcache.st_mode & S_ISGID)
3207 I32 result = my_stat();
3211 if (PL_statcache.st_mode & S_ISVTX)
3222 char *tmps = Nullch;
3225 if (PL_op->op_flags & OPf_REF)
3227 else if (isGV(TOPs))
3229 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3230 gv = (GV*)SvRV(POPs);
3232 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3234 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3235 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3236 else if (tmps && isDIGIT(*tmps))
3240 if (PerlLIO_isatty(fd))
3245 #if defined(atarist) /* this will work with atariST. Configure will
3246 make guesses for other systems. */
3247 # define FILE_base(f) ((f)->_base)
3248 # define FILE_ptr(f) ((f)->_ptr)
3249 # define FILE_cnt(f) ((f)->_cnt)
3250 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3260 register STDCHAR *s;
3267 if (PL_op->op_flags & OPf_REF)
3269 else if (isGV(TOPs))
3271 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3272 gv = (GV*)SvRV(POPs);
3278 if (gv == PL_defgv) {
3280 io = GvIO(PL_statgv);
3283 goto really_filename;
3288 PL_laststatval = -1;
3289 sv_setpv(PL_statname, "");
3290 io = GvIO(PL_statgv);
3292 if (io && IoIFP(io)) {
3293 if (! PerlIO_has_base(IoIFP(io)))
3294 DIE(aTHX_ "-T and -B not implemented on filehandles");
3295 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3296 if (PL_laststatval < 0)
3298 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3299 if (PL_op->op_type == OP_FTTEXT)
3304 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3305 i = PerlIO_getc(IoIFP(io));
3307 (void)PerlIO_ungetc(IoIFP(io),i);
3309 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3311 len = PerlIO_get_bufsiz(IoIFP(io));
3312 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3313 /* sfio can have large buffers - limit to 512 */
3318 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3320 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3322 SETERRNO(EBADF,RMS$_IFI);
3330 PL_laststatval = -1;
3331 PL_laststype = OP_STAT;
3332 sv_setpv(PL_statname, SvPV(sv, n_a));
3333 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3334 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3335 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3338 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3339 if (PL_laststatval < 0) {
3340 (void)PerlIO_close(fp);
3343 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3344 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3345 (void)PerlIO_close(fp);
3347 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3348 RETPUSHNO; /* special case NFS directories */
3349 RETPUSHYES; /* null file is anything */
3354 /* now scan s to look for textiness */
3355 /* XXX ASCII dependent code */
3357 #if defined(DOSISH) || defined(USEMYBINMODE)
3358 /* ignore trailing ^Z on short files */
3359 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3363 for (i = 0; i < len; i++, s++) {
3364 if (!*s) { /* null never allowed in text */
3369 else if (!(isPRINT(*s) || isSPACE(*s)))
3372 else if (*s & 128) {
3374 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3377 /* utf8 characters don't count as odd */
3378 if (UTF8_IS_START(*s)) {
3379 int ulen = UTF8SKIP(s);
3380 if (ulen < len - i) {
3382 for (j = 1; j < ulen; j++) {
3383 if (!UTF8_IS_CONTINUATION(s[j]))
3386 --ulen; /* loop does extra increment */
3396 *s != '\n' && *s != '\r' && *s != '\b' &&
3397 *s != '\t' && *s != '\f' && *s != 27)
3402 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3427 if( !tmps || !*tmps ) {
3428 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3429 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3431 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3436 deprecate("chdir('') or chdir(undef) as chdir()");
3437 tmps = SvPV(*svp, n_a);
3441 TAINT_PROPER("chdir");
3446 TAINT_PROPER("chdir");
3447 PUSHi( PerlDir_chdir(tmps) >= 0 );
3449 /* Clear the DEFAULT element of ENV so we'll get the new value
3451 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3459 dSP; dMARK; dTARGET;
3460 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3466 DIE(aTHX_ PL_no_func, "chown");
3476 TAINT_PROPER("chroot");
3477 PUSHi( chroot(tmps) >= 0 );
3480 DIE(aTHX_ PL_no_func, "chroot");
3486 dSP; dMARK; dTARGET;
3488 value = (I32)apply(PL_op->op_type, MARK, SP);
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);
3520 char *tmps2 = POPpx;
3521 char *tmps = SvPV(TOPs, n_a);
3522 TAINT_PROPER("rename");
3524 anum = PerlLIO_rename(tmps, tmps2);
3526 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3527 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3530 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3531 (void)UNLINK(tmps2);
3532 if (!(anum = link(tmps, tmps2)))
3533 anum = UNLINK(tmps);
3546 char *tmps2 = POPpx;
3547 char *tmps = SvPV(TOPs, n_a);
3548 TAINT_PROPER("link");
3549 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3552 DIE(aTHX_ PL_no_func, "link");
3561 char *tmps2 = POPpx;
3562 char *tmps = SvPV(TOPs, n_a);
3563 TAINT_PROPER("symlink");
3564 SETi( symlink(tmps, tmps2) >= 0 );
3567 DIE(aTHX_ PL_no_func, "symlink");
3577 char buf[MAXPATHLEN];
3581 #ifndef INCOMPLETE_TAINTS
3585 len = readlink(tmps, buf, sizeof(buf) - 1);
3593 RETSETUNDEF; /* just pretend it's a normal file */
3597 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3599 S_dooneliner(pTHX_ char *cmd, char *filename)
3601 char *save_filename = filename;
3607 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3608 strcpy(cmdline, cmd);
3609 strcat(cmdline, " ");
3610 for (s = cmdline + strlen(cmdline); *filename; ) {
3615 myfp = PerlProc_popen(cmdline, "r");
3619 SV *tmpsv = sv_newmortal();
3620 /* Need to save/restore 'PL_rs' ?? */
3621 s = sv_gets(tmpsv, myfp, 0);
3622 (void)PerlProc_pclose(myfp);
3626 #ifdef HAS_SYS_ERRLIST
3631 /* you don't see this */
3633 #ifdef HAS_SYS_ERRLIST
3641 if (instr(s, errmsg)) {
3648 #define EACCES EPERM
3650 if (instr(s, "cannot make"))
3651 SETERRNO(EEXIST,RMS$_FEX);
3652 else if (instr(s, "existing file"))
3653 SETERRNO(EEXIST,RMS$_FEX);
3654 else if (instr(s, "ile exists"))
3655 SETERRNO(EEXIST,RMS$_FEX);
3656 else if (instr(s, "non-exist"))
3657 SETERRNO(ENOENT,RMS$_FNF);
3658 else if (instr(s, "does not exist"))
3659 SETERRNO(ENOENT,RMS$_FNF);
3660 else if (instr(s, "not empty"))
3661 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3662 else if (instr(s, "cannot access"))
3663 SETERRNO(EACCES,RMS$_PRV);
3665 SETERRNO(EPERM,RMS$_PRV);
3668 else { /* some mkdirs return no failure indication */
3669 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3670 if (PL_op->op_type == OP_RMDIR)
3675 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3700 tmps = SvPV(TOPs, len);
3701 /* Different operating and file systems take differently to
3702 * trailing slashes. According to POSIX 1003.1 1996 Edition
3703 * any number of trailing slashes should be allowed.
3704 * Thusly we snip them away so that even non-conforming
3705 * systems are happy. */
3706 /* We should probably do this "filtering" for all
3707 * the functions that expect (potentially) directory names:
3708 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3709 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3710 if (len > 1 && tmps[len-1] == '/') {
3711 while (tmps[len] == '/' && len > 1)
3713 tmps = savepvn(tmps, len);
3717 TAINT_PROPER("mkdir");
3719 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3721 SETi( dooneliner("mkdir", tmps) );
3722 oldumask = PerlLIO_umask(0);
3723 PerlLIO_umask(oldumask);
3724 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3738 TAINT_PROPER("rmdir");
3740 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3742 XPUSHi( dooneliner("rmdir", tmps) );
3747 /* Directory calls. */
3751 #if defined(Direntry_t) && defined(HAS_READDIR)
3754 char *dirname = POPpx;
3756 register IO *io = GvIOn(gv);
3762 PerlDir_close(IoDIRP(io));
3763 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3769 SETERRNO(EBADF,RMS$_DIR);
3772 DIE(aTHX_ PL_no_dir_func, "opendir");
3778 #if defined(Direntry_t) && defined(HAS_READDIR)
3780 #if !defined(I_DIRENT) && !defined(VMS)
3781 Direntry_t *readdir (DIR *);
3783 register Direntry_t *dp;
3785 register IO *io = GvIOn(gv);
3788 if (!io || !IoDIRP(io))
3791 if (GIMME == G_ARRAY) {
3793 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3795 sv = newSVpvn(dp->d_name, dp->d_namlen);
3797 sv = newSVpv(dp->d_name, 0);
3799 #ifndef INCOMPLETE_TAINTS
3800 if (!(IoFLAGS(io) & IOf_UNTAINT))
3803 XPUSHs(sv_2mortal(sv));
3807 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3810 sv = newSVpvn(dp->d_name, dp->d_namlen);
3812 sv = newSVpv(dp->d_name, 0);
3814 #ifndef INCOMPLETE_TAINTS
3815 if (!(IoFLAGS(io) & IOf_UNTAINT))
3818 XPUSHs(sv_2mortal(sv));
3824 SETERRNO(EBADF,RMS$_ISI);
3825 if (GIMME == G_ARRAY)
3830 DIE(aTHX_ PL_no_dir_func, "readdir");
3836 #if defined(HAS_TELLDIR) || defined(telldir)
3838 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3839 /* XXX netbsd still seemed to.
3840 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3841 --JHI 1999-Feb-02 */
3842 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3843 long telldir (DIR *);
3846 register IO *io = GvIOn(gv);
3848 if (!io || !IoDIRP(io))
3851 PUSHi( PerlDir_tell(IoDIRP(io)) );
3855 SETERRNO(EBADF,RMS$_ISI);
3858 DIE(aTHX_ PL_no_dir_func, "telldir");
3864 #if defined(HAS_SEEKDIR) || defined(seekdir)
3868 register IO *io = GvIOn(gv);
3870 if (!io || !IoDIRP(io))
3873 (void)PerlDir_seek(IoDIRP(io), along);
3878 SETERRNO(EBADF,RMS$_ISI);
3881 DIE(aTHX_ PL_no_dir_func, "seekdir");
3887 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3890 register IO *io = GvIOn(gv);
3892 if (!io || !IoDIRP(io))
3895 (void)PerlDir_rewind(IoDIRP(io));
3899 SETERRNO(EBADF,RMS$_ISI);
3902 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3908 #if defined(Direntry_t) && defined(HAS_READDIR)
3911 register IO *io = GvIOn(gv);
3913 if (!io || !IoDIRP(io))
3916 #ifdef VOID_CLOSEDIR
3917 PerlDir_close(IoDIRP(io));
3919 if (PerlDir_close(IoDIRP(io)) < 0) {
3920 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3929 SETERRNO(EBADF,RMS$_IFI);
3932 DIE(aTHX_ PL_no_dir_func, "closedir");
3936 /* Process control. */
3946 PERL_FLUSHALL_FOR_CHILD;
3947 childpid = PerlProc_fork();
3952 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3953 SvREADONLY_off(GvSV(tmpgv));
3954 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3955 SvREADONLY_on(GvSV(tmpgv));
3957 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3962 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3967 PERL_FLUSHALL_FOR_CHILD;
3968 childpid = PerlProc_fork();
3974 DIE(aTHX_ PL_no_func, "fork");
3981 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3986 #ifdef PERL_OLD_SIGNALS
3987 childpid = wait4pid(-1, &argflags, 0);
3989 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
3993 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3994 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3995 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3997 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4002 DIE(aTHX_ PL_no_func, "wait");
4008 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4016 #ifdef PERL_OLD_SIGNALS
4017 childpid = wait4pid(childpid, &argflags, optype);
4019 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
4023 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4024 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4025 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4027 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4032 DIE(aTHX_ PL_no_func, "waitpid");
4038 dSP; dMARK; dORIGMARK; dTARGET;
4046 while (++MARK <= SP) {
4047 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4052 /* XXX Remove warning at end of deprecation cycle --RD 2002-02 */
4053 if (SP - MARK == 1) {
4054 TAINT_PROPER("system");
4056 else if (ckWARN2(WARN_TAINT, WARN_DEPRECATED)) {
4057 Perl_warner(aTHX_ packWARN2(WARN_TAINT, WARN_DEPRECATED),
4058 "Use of tainted arguments in %s is deprecated", "system");
4061 PERL_FLUSHALL_FOR_CHILD;
4062 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4067 if (PerlProc_pipe(pp) >= 0)
4069 while ((childpid = PerlProc_fork()) == -1) {
4070 if (errno != EAGAIN) {
4075 PerlLIO_close(pp[0]);
4076 PerlLIO_close(pp[1]);
4083 Sigsave_t ihand,qhand; /* place to save signals during system() */
4087 PerlLIO_close(pp[1]);
4089 rsignal_save(SIGINT, SIG_IGN, &ihand);
4090 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4093 result = wait4pid(childpid, &status, 0);
4094 } while (result == -1 && errno == EINTR);
4096 (void)rsignal_restore(SIGINT, &ihand);
4097 (void)rsignal_restore(SIGQUIT, &qhand);
4099 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4100 do_execfree(); /* free any memory child malloced on fork */
4106 while (n < sizeof(int)) {
4107 n1 = PerlLIO_read(pp[0],
4108 (void*)(((char*)&errkid)+n),
4114 PerlLIO_close(pp[0]);
4115 if (n) { /* Error */
4116 if (n != sizeof(int))
4117 DIE(aTHX_ "panic: kid popen errno read");
4118 errno = errkid; /* Propagate errno from kid */
4119 STATUS_CURRENT = -1;
4122 PUSHi(STATUS_CURRENT);
4126 PerlLIO_close(pp[0]);
4127 #if defined(HAS_FCNTL) && defined(F_SETFD)
4128 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4131 if (PL_op->op_flags & OPf_STACKED) {
4132 SV *really = *++MARK;
4133 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4135 else if (SP - MARK != 1)
4136 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4138 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4142 #else /* ! FORK or VMS or OS/2 */
4145 if (PL_op->op_flags & OPf_STACKED) {
4146 SV *really = *++MARK;
4147 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4149 else if (SP - MARK != 1)
4150 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4152 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4154 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4156 STATUS_NATIVE_SET(value);
4159 PUSHi(result ? value : STATUS_CURRENT);
4160 #endif /* !FORK or VMS */
4166 dSP; dMARK; dORIGMARK; dTARGET;
4172 while (++MARK <= SP) {
4173 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4178 /* XXX Remove warning at end of deprecation cycle --RD 2002-02 */
4179 if (SP - MARK == 1) {
4180 TAINT_PROPER("exec");
4182 else if (ckWARN2(WARN_TAINT, WARN_DEPRECATED)) {
4183 Perl_warner(aTHX_ packWARN2(WARN_TAINT, WARN_DEPRECATED),
4184 "Use of tainted arguments in %s is deprecated", "exec");
4187 PERL_FLUSHALL_FOR_CHILD;
4188 if (PL_op->op_flags & OPf_STACKED) {
4189 SV *really = *++MARK;
4190 value = (I32)do_aexec(really, MARK, SP);
4192 else if (SP - MARK != 1)
4194 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4198 (void ) do_aspawn(Nullsv, MARK, SP);
4202 value = (I32)do_aexec(Nullsv, MARK, SP);
4207 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4210 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4213 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4226 dSP; dMARK; dTARGET;
4228 value = (I32)apply(PL_op->op_type, MARK, SP);
4233 DIE(aTHX_ PL_no_func, "kill");
4241 XPUSHi( getppid() );
4244 DIE(aTHX_ PL_no_func, "getppid");
4260 pgrp = (I32)BSD_GETPGRP(pid);
4262 if (pid != 0 && pid != PerlProc_getpid())
4263 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4269 DIE(aTHX_ PL_no_func, "getpgrp()");
4288 TAINT_PROPER("setpgrp");
4290 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4292 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4293 || (pid != 0 && pid != PerlProc_getpid()))
4295 DIE(aTHX_ "setpgrp can't take arguments");
4297 SETi( setpgrp() >= 0 );
4298 #endif /* USE_BSDPGRP */
4301 DIE(aTHX_ PL_no_func, "setpgrp()");
4307 #ifdef HAS_GETPRIORITY
4311 SETi( getpriority(which, who) );
4314 DIE(aTHX_ PL_no_func, "getpriority()");
4320 #ifdef HAS_SETPRIORITY
4325 TAINT_PROPER("setpriority");
4326 SETi( setpriority(which, who, niceval) >= 0 );
4329 DIE(aTHX_ PL_no_func, "setpriority()");
4339 XPUSHn( time(Null(Time_t*)) );
4341 XPUSHi( time(Null(Time_t*)) );
4346 /* XXX The POSIX name is CLK_TCK; it is to be preferred
4347 to HZ. Probably. For now, assume that if the system
4348 defines HZ, it does so correctly. (Will this break
4350 Probably we ought to use _sysconf(_SC_CLK_TCK), if
4351 it's supported. --AD 9/96.
4372 (void)PerlProc_times(&PL_timesbuf);
4374 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4375 /* struct tms, though same data */
4379 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/HZ)));
4380 if (GIMME == G_ARRAY) {
4381 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/HZ)));
4382 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/HZ)));
4383 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/HZ)));
4387 DIE(aTHX_ "times not implemented");
4388 #endif /* HAS_TIMES */
4401 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4402 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4403 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4409 when = (Time_t)SvNVx(POPs);
4411 when = (Time_t)SvIVx(POPs);
4414 if (PL_op->op_type == OP_LOCALTIME)
4415 tmbuf = localtime(&when);
4417 tmbuf = gmtime(&when);
4419 if (GIMME != G_ARRAY) {
4425 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4426 dayname[tmbuf->tm_wday],
4427 monname[tmbuf->tm_mon],
4432 tmbuf->tm_year + 1900);
4433 PUSHs(sv_2mortal(tsv));
4438 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4439 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4440 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4441 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4442 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4443 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4444 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4445 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4446 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4457 anum = alarm((unsigned int)anum);
4464 DIE(aTHX_ PL_no_func, "alarm");
4475 (void)time(&lasttime);
4480 PerlProc_sleep((unsigned int)duration);
4483 XPUSHi(when - lasttime);
4487 /* Shared memory. */
4501 return pp_shmwrite();
4506 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4507 dSP; dMARK; dTARGET;
4508 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4517 /* Message passing. */
4531 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4532 dSP; dMARK; dTARGET;
4533 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4544 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4545 dSP; dMARK; dTARGET;
4546 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4559 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4560 dSP; dMARK; dTARGET;
4561 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4568 DIE(aTHX_ "System V IPC is not implemented on this machine");
4574 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4575 dSP; dMARK; dTARGET;
4576 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4584 PUSHp(zero_but_true, ZBTLEN);
4594 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4595 dSP; dMARK; dTARGET;
4596 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4605 /* Get system info. */
4609 #ifdef HAS_GETHOSTBYNAME
4610 return pp_ghostent();
4612 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4618 #ifdef HAS_GETHOSTBYADDR
4619 return pp_ghostent();
4621 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4627 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4629 I32 which = PL_op->op_type;
4630 register char **elem;
4632 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4633 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4634 struct hostent *gethostbyname(Netdb_name_t);
4635 struct hostent *gethostent(void);
4637 struct hostent *hent;
4642 if (which == OP_GHBYNAME) {
4643 #ifdef HAS_GETHOSTBYNAME
4644 char* name = POPpbytex;
4645 hent = PerlSock_gethostbyname(name);
4647 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4650 else if (which == OP_GHBYADDR) {
4651 #ifdef HAS_GETHOSTBYADDR
4652 int addrtype = POPi;
4655 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4657 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4659 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4663 #ifdef HAS_GETHOSTENT
4664 hent = PerlSock_gethostent();
4666 DIE(aTHX_ PL_no_sock_func, "gethostent");
4669 #ifdef HOST_NOT_FOUND
4671 #ifdef USE_REENTRANT_API
4672 # ifdef USE_GETHOSTENT_ERRNO
4673 h_errno = PL_reentrant_buffer->_gethostent_errno;
4676 STATUS_NATIVE_SET(h_errno);
4680 if (GIMME != G_ARRAY) {
4681 PUSHs(sv = sv_newmortal());
4683 if (which == OP_GHBYNAME) {
4685 sv_setpvn(sv, hent->h_addr, hent->h_length);
4688 sv_setpv(sv, (char*)hent->h_name);
4694 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4695 sv_setpv(sv, (char*)hent->h_name);
4696 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4697 for (elem = hent->h_aliases; elem && *elem; elem++) {
4698 sv_catpv(sv, *elem);
4700 sv_catpvn(sv, " ", 1);
4702 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4703 sv_setiv(sv, (IV)hent->h_addrtype);
4704 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4705 len = hent->h_length;
4706 sv_setiv(sv, (IV)len);
4708 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4709 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4710 sv_setpvn(sv, *elem, len);
4713 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4715 sv_setpvn(sv, hent->h_addr, len);
4720 DIE(aTHX_ PL_no_sock_func, "gethostent");
4726 #ifdef HAS_GETNETBYNAME
4727 return pp_gnetent();
4729 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4735 #ifdef HAS_GETNETBYADDR
4736 return pp_gnetent();
4738 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4744 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4746 I32 which = PL_op->op_type;
4747 register char **elem;
4749 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4750 struct netent *getnetbyaddr(Netdb_net_t, int);
4751 struct netent *getnetbyname(Netdb_name_t);
4752 struct netent *getnetent(void);
4754 struct netent *nent;
4757 if (which == OP_GNBYNAME){
4758 #ifdef HAS_GETNETBYNAME
4759 char *name = POPpbytex;
4760 nent = PerlSock_getnetbyname(name);
4762 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4765 else if (which == OP_GNBYADDR) {
4766 #ifdef HAS_GETNETBYADDR
4767 int addrtype = POPi;
4768 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4769 nent = PerlSock_getnetbyaddr(addr, addrtype);
4771 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4775 #ifdef HAS_GETNETENT
4776 nent = PerlSock_getnetent();
4778 DIE(aTHX_ PL_no_sock_func, "getnetent");
4781 #ifdef HOST_NOT_FOUND
4783 #ifdef USE_REENTRANT_API
4784 # ifdef USE_GETNETENT_ERRNO
4785 h_errno = PL_reentrant_buffer->_getnetent_errno;
4788 STATUS_NATIVE_SET(h_errno);
4793 if (GIMME != G_ARRAY) {
4794 PUSHs(sv = sv_newmortal());
4796 if (which == OP_GNBYNAME)
4797 sv_setiv(sv, (IV)nent->n_net);
4799 sv_setpv(sv, nent->n_name);
4805 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4806 sv_setpv(sv, nent->n_name);
4807 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4808 for (elem = nent->n_aliases; elem && *elem; elem++) {
4809 sv_catpv(sv, *elem);
4811 sv_catpvn(sv, " ", 1);
4813 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4814 sv_setiv(sv, (IV)nent->n_addrtype);
4815 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4816 sv_setiv(sv, (IV)nent->n_net);
4821 DIE(aTHX_ PL_no_sock_func, "getnetent");
4827 #ifdef HAS_GETPROTOBYNAME
4828 return pp_gprotoent();
4830 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4836 #ifdef HAS_GETPROTOBYNUMBER
4837 return pp_gprotoent();
4839 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4845 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4847 I32 which = PL_op->op_type;
4848 register char **elem;
4850 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4851 struct protoent *getprotobyname(Netdb_name_t);
4852 struct protoent *getprotobynumber(int);
4853 struct protoent *getprotoent(void);
4855 struct protoent *pent;
4858 if (which == OP_GPBYNAME) {
4859 #ifdef HAS_GETPROTOBYNAME
4860 char* name = POPpbytex;
4861 pent = PerlSock_getprotobyname(name);
4863 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4866 else if (which == OP_GPBYNUMBER) {
4867 #ifdef HAS_GETPROTOBYNUMBER
4869 pent = PerlSock_getprotobynumber(number);
4871 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4875 #ifdef HAS_GETPROTOENT
4876 pent = PerlSock_getprotoent();
4878 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4882 if (GIMME != G_ARRAY) {
4883 PUSHs(sv = sv_newmortal());
4885 if (which == OP_GPBYNAME)
4886 sv_setiv(sv, (IV)pent->p_proto);
4888 sv_setpv(sv, pent->p_name);
4894 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4895 sv_setpv(sv, pent->p_name);
4896 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4897 for (elem = pent->p_aliases; elem && *elem; elem++) {
4898 sv_catpv(sv, *elem);
4900 sv_catpvn(sv, " ", 1);
4902 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4903 sv_setiv(sv, (IV)pent->p_proto);
4908 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4914 #ifdef HAS_GETSERVBYNAME
4915 return pp_gservent();
4917 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4923 #ifdef HAS_GETSERVBYPORT
4924 return pp_gservent();
4926 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4932 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4934 I32 which = PL_op->op_type;
4935 register char **elem;
4937 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4938 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4939 struct servent *getservbyport(int, Netdb_name_t);
4940 struct servent *getservent(void);
4942 struct servent *sent;
4945 if (which == OP_GSBYNAME) {
4946 #ifdef HAS_GETSERVBYNAME
4947 char *proto = POPpbytex;
4948 char *name = POPpbytex;
4950 if (proto && !*proto)
4953 sent = PerlSock_getservbyname(name, proto);
4955 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4958 else if (which == OP_GSBYPORT) {
4959 #ifdef HAS_GETSERVBYPORT
4960 char *proto = POPpbytex;
4961 unsigned short port = (unsigned short)POPu;
4964 port = PerlSock_htons(port);
4966 sent = PerlSock_getservbyport(port, proto);
4968 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4972 #ifdef HAS_GETSERVENT
4973 sent = PerlSock_getservent();
4975 DIE(aTHX_ PL_no_sock_func, "getservent");
4979 if (GIMME != G_ARRAY) {
4980 PUSHs(sv = sv_newmortal());
4982 if (which == OP_GSBYNAME) {
4984 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4986 sv_setiv(sv, (IV)(sent->s_port));
4990 sv_setpv(sv, sent->s_name);
4996 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4997 sv_setpv(sv, sent->s_name);
4998 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4999 for (elem = sent->s_aliases; elem && *elem; elem++) {
5000 sv_catpv(sv, *elem);
5002 sv_catpvn(sv, " ", 1);
5004 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5006 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5008 sv_setiv(sv, (IV)(sent->s_port));
5010 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5011 sv_setpv(sv, sent->s_proto);
5016 DIE(aTHX_ PL_no_sock_func, "getservent");
5022 #ifdef HAS_SETHOSTENT
5024 PerlSock_sethostent(TOPi);
5027 DIE(aTHX_ PL_no_sock_func, "sethostent");
5033 #ifdef HAS_SETNETENT
5035 PerlSock_setnetent(TOPi);
5038 DIE(aTHX_ PL_no_sock_func, "setnetent");
5044 #ifdef HAS_SETPROTOENT
5046 PerlSock_setprotoent(TOPi);
5049 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5055 #ifdef HAS_SETSERVENT
5057 PerlSock_setservent(TOPi);
5060 DIE(aTHX_ PL_no_sock_func, "setservent");
5066 #ifdef HAS_ENDHOSTENT
5068 PerlSock_endhostent();
5072 DIE(aTHX_ PL_no_sock_func, "endhostent");
5078 #ifdef HAS_ENDNETENT
5080 PerlSock_endnetent();
5084 DIE(aTHX_ PL_no_sock_func, "endnetent");
5090 #ifdef HAS_ENDPROTOENT
5092 PerlSock_endprotoent();
5096 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5102 #ifdef HAS_ENDSERVENT
5104 PerlSock_endservent();
5108 DIE(aTHX_ PL_no_sock_func, "endservent");
5117 DIE(aTHX_ PL_no_func, "getpwnam");
5126 DIE(aTHX_ PL_no_func, "getpwuid");
5134 I32 which = PL_op->op_type;
5137 struct passwd *pwent = NULL;
5139 * We currently support only the SysV getsp* shadow password interface.
5140 * The interface is declared in <shadow.h> and often one needs to link
5141 * with -lsecurity or some such.
5142 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5145 * AIX getpwnam() is clever enough to return the encrypted password
5146 * only if the caller (euid?) is root.
5148 * There are at least two other shadow password APIs. Many platforms
5149 * seem to contain more than one interface for accessing the shadow
5150 * password databases, possibly for compatibility reasons.
5151 * The getsp*() is by far he simplest one, the other two interfaces
5152 * are much more complicated, but also very similar to each other.
5157 * struct pr_passwd *getprpw*();
5158 * The password is in
5159 * char getprpw*(...).ufld.fd_encrypt[]
5160 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5165 * struct es_passwd *getespw*();
5166 * The password is in
5167 * char *(getespw*(...).ufld.fd_encrypt)
5168 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5170 * Mention I_PROT here so that Configure probes for it.
5172 * In HP-UX for getprpw*() the manual page claims that one should include
5173 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5174 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5175 * and pp_sys.c already includes <shadow.h> if there is such.
5177 * Note that <sys/security.h> is already probed for, but currently
5178 * it is only included in special cases.
5180 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5181 * be preferred interface, even though also the getprpw*() interface
5182 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5183 * One also needs to call set_auth_parameters() in main() before
5184 * doing anything else, whether one is using getespw*() or getprpw*().
5186 * Note that accessing the shadow databases can be magnitudes
5187 * slower than accessing the standard databases.
5195 char* name = POPpbytex;
5196 pwent = getpwnam(name);
5202 pwent = getpwuid(uid);
5206 # ifdef HAS_GETPWENT
5209 DIE(aTHX_ PL_no_func, "getpwent");
5215 if (GIMME != G_ARRAY) {
5216 PUSHs(sv = sv_newmortal());
5218 if (which == OP_GPWNAM)
5219 # if Uid_t_sign <= 0
5220 sv_setiv(sv, (IV)pwent->pw_uid);
5222 sv_setuv(sv, (UV)pwent->pw_uid);
5225 sv_setpv(sv, pwent->pw_name);
5231 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5232 sv_setpv(sv, pwent->pw_name);
5234 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5236 /* If we have getspnam(), we try to dig up the shadow
5237 * password. If we are underprivileged, the shadow
5238 * interface will set the errno to EACCES or similar,
5239 * and return a null pointer. If this happens, we will
5240 * use the dummy password (usually "*" or "x") from the
5241 * standard password database.
5243 * In theory we could skip the shadow call completely
5244 * if euid != 0 but in practice we cannot know which
5245 * security measures are guarding the shadow databases
5246 * on a random platform.
5248 * Resist the urge to use additional shadow interfaces.
5249 * Divert the urge to writing an extension instead.
5252 # ifdef HAS_GETSPNAM
5254 struct spwd *spwent;
5255 int saverrno; /* Save and restore errno so that
5256 * underprivileged attempts seem
5257 * to have never made the unsccessful
5258 * attempt to retrieve the shadow password. */
5261 spwent = getspnam(pwent->pw_name);
5263 if (spwent && spwent->sp_pwdp)
5264 sv_setpv(sv, spwent->sp_pwdp);
5268 if (!SvPOK(sv)) /* Use the standard password, then. */
5269 sv_setpv(sv, pwent->pw_passwd);
5272 # ifndef INCOMPLETE_TAINTS
5273 /* passwd is tainted because user himself can diddle with it.
5274 * admittedly not much and in a very limited way, but nevertheless. */
5278 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5279 # if Uid_t_sign <= 0
5280 sv_setiv(sv, (IV)pwent->pw_uid);
5282 sv_setuv(sv, (UV)pwent->pw_uid);
5285 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5286 # if Uid_t_sign <= 0
5287 sv_setiv(sv, (IV)pwent->pw_gid);
5289 sv_setuv(sv, (UV)pwent->pw_gid);
5291 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5292 * because of the poor interface of the Perl getpw*(),
5293 * not because there's some standard/convention saying so.
5294 * A better interface would have been to return a hash,
5295 * but we are accursed by our history, alas. --jhi. */
5296 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5298 sv_setiv(sv, (IV)pwent->pw_change);
5301 sv_setiv(sv, (IV)pwent->pw_quota);
5304 sv_setpv(sv, pwent->pw_age);
5309 /* pw_class and pw_comment are mutually exclusive--.
5310 * see the above note for pw_change, pw_quota, and pw_age. */
5311 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5313 sv_setpv(sv, pwent->pw_class);
5316 sv_setpv(sv, pwent->pw_comment);
5320 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5322 sv_setpv(sv, pwent->pw_gecos);
5324 # ifndef INCOMPLETE_TAINTS
5325 /* pw_gecos is tainted because user himself can diddle with it. */
5329 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5330 sv_setpv(sv, pwent->pw_dir);
5332 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5333 sv_setpv(sv, pwent->pw_shell);
5334 # ifndef INCOMPLETE_TAINTS
5335 /* pw_shell is tainted because user himself can diddle with it. */
5340 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5341 sv_setiv(sv, (IV)pwent->pw_expire);
5346 DIE(aTHX_ PL_no_func, "getpwent");
5352 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5357 DIE(aTHX_ PL_no_func, "setpwent");
5363 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5368 DIE(aTHX_ PL_no_func, "endpwent");
5377 DIE(aTHX_ PL_no_func, "getgrnam");
5386 DIE(aTHX_ PL_no_func, "getgrgid");
5394 I32 which = PL_op->op_type;
5395 register char **elem;
5397 struct group *grent;
5400 if (which == OP_GGRNAM) {
5401 char* name = POPpbytex;
5402 grent = (struct group *)getgrnam(name);
5404 else if (which == OP_GGRGID) {
5406 grent = (struct group *)getgrgid(gid);
5410 grent = (struct group *)getgrent();
5412 DIE(aTHX_ PL_no_func, "getgrent");
5416 if (GIMME != G_ARRAY) {
5417 PUSHs(sv = sv_newmortal());
5419 if (which == OP_GGRNAM)
5420 sv_setiv(sv, (IV)grent->gr_gid);
5422 sv_setpv(sv, grent->gr_name);
5428 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5429 sv_setpv(sv, grent->gr_name);
5431 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5433 sv_setpv(sv, grent->gr_passwd);
5436 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5437 sv_setiv(sv, (IV)grent->gr_gid);
5439 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5440 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5441 /* In UNICOS/mk (_CRAYMPP) the multithreading
5442 * versions (getgrnam_r, getgrgid_r)
5443 * seem to return an illegal pointer
5444 * as the group members list, gr_mem.
5445 * getgrent() doesn't even have a _r version
5446 * but the gr_mem is poisonous anyway.
5447 * So yes, you cannot get the list of group
5448 * members if building multithreaded in UNICOS/mk. */
5449 for (elem = grent->gr_mem; elem && *elem; elem++) {
5450 sv_catpv(sv, *elem);
5452 sv_catpvn(sv, " ", 1);
5459 DIE(aTHX_ PL_no_func, "getgrent");
5465 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5470 DIE(aTHX_ PL_no_func, "setgrent");
5476 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5481 DIE(aTHX_ PL_no_func, "endgrent");
5491 if (!(tmps = PerlProc_getlogin()))
5493 PUSHp(tmps, strlen(tmps));
5496 DIE(aTHX_ PL_no_func, "getlogin");
5500 /* Miscellaneous. */
5505 dSP; dMARK; dORIGMARK; dTARGET;
5506 register I32 items = SP - MARK;
5507 unsigned long a[20];
5513 while (++MARK <= SP) {
5514 if (SvTAINTED(*MARK)) {
5520 TAINT_PROPER("syscall");
5523 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5524 * or where sizeof(long) != sizeof(char*). But such machines will
5525 * not likely have syscall implemented either, so who cares?
5527 while (++MARK <= SP) {
5528 if (SvNIOK(*MARK) || !i)
5529 a[i++] = SvIV(*MARK);
5530 else if (*MARK == &PL_sv_undef)
5533 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5539 DIE(aTHX_ "Too many args to syscall");
5541 DIE(aTHX_ "Too few args to syscall");
5543 retval = syscall(a[0]);
5546 retval = syscall(a[0],a[1]);
5549 retval = syscall(a[0],a[1],a[2]);
5552 retval = syscall(a[0],a[1],a[2],a[3]);
5555 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5558 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5561 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5564 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5568 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5571 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],
5578 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5582 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5586 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5587 a[10],a[11],a[12],a[13]);
5589 #endif /* atarist */
5595 DIE(aTHX_ PL_no_func, "syscall");
5599 #ifdef FCNTL_EMULATE_FLOCK
5601 /* XXX Emulate flock() with fcntl().
5602 What's really needed is a good file locking module.
5606 fcntl_emulate_flock(int fd, int operation)
5610 switch (operation & ~LOCK_NB) {
5612 flock.l_type = F_RDLCK;
5615 flock.l_type = F_WRLCK;
5618 flock.l_type = F_UNLCK;
5624 flock.l_whence = SEEK_SET;
5625 flock.l_start = flock.l_len = (Off_t)0;
5627 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5630 #endif /* FCNTL_EMULATE_FLOCK */
5632 #ifdef LOCKF_EMULATE_FLOCK
5634 /* XXX Emulate flock() with lockf(). This is just to increase
5635 portability of scripts. The calls are not completely
5636 interchangeable. What's really needed is a good file
5640 /* The lockf() constants might have been defined in <unistd.h>.
5641 Unfortunately, <unistd.h> causes troubles on some mixed
5642 (BSD/POSIX) systems, such as SunOS 4.1.3.
5644 Further, the lockf() constants aren't POSIX, so they might not be
5645 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5646 just stick in the SVID values and be done with it. Sigh.
5650 # define F_ULOCK 0 /* Unlock a previously locked region */
5653 # define F_LOCK 1 /* Lock a region for exclusive use */
5656 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5659 # define F_TEST 3 /* Test a region for other processes locks */
5663 lockf_emulate_flock(int fd, int operation)
5669 /* flock locks entire file so for lockf we need to do the same */
5671 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5672 if (pos > 0) /* is seekable and needs to be repositioned */
5673 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5674 pos = -1; /* seek failed, so don't seek back afterwards */
5677 switch (operation) {
5679 /* LOCK_SH - get a shared lock */
5681 /* LOCK_EX - get an exclusive lock */
5683 i = lockf (fd, F_LOCK, 0);
5686 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5687 case LOCK_SH|LOCK_NB:
5688 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5689 case LOCK_EX|LOCK_NB:
5690 i = lockf (fd, F_TLOCK, 0);
5692 if ((errno == EAGAIN) || (errno == EACCES))
5693 errno = EWOULDBLOCK;
5696 /* LOCK_UN - unlock (non-blocking is a no-op) */
5698 case LOCK_UN|LOCK_NB:
5699 i = lockf (fd, F_ULOCK, 0);
5702 /* Default - can't decipher operation */
5709 if (pos > 0) /* need to restore position of the handle */
5710 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5715 #endif /* LOCKF_EMULATE_FLOCK */