3 * Copyright (c) 1991-2002, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * But only a short way ahead its floor and the walls on either side were
12 * cloven by a great fissure, out of which the red glare came, now leaping
13 * up, now dying down into darkness; and all the while far below there was
14 * a rumour and a trouble as of great engines throbbing and labouring.
18 #define PERL_IN_PP_SYS_C
22 /* Shadow password support for solaris - pdo@cs.umd.edu
23 * Not just Solaris: at least HP-UX, IRIX, Linux.
24 * The API is from SysV.
26 * There are at least two more shadow interfaces,
27 * see the comments in pp_gpwent().
31 /* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
32 * and another MAXINT from "perl.h" <- <sys/param.h>. */
40 extern "C" int syscall(unsigned long,...);
45 # include <sys/wait.h>
49 # include <sys/resource.h>
58 # include <sys/select.h>
62 /* XXX Configure test needed.
63 h_errno might not be a simple 'int', especially for multi-threaded
64 applications, see "extern int errno in perl.h". Creating such
65 a test requires taking into account the differences between
66 compiling multithreaded and singlethreaded ($ccflags et al).
67 HOST_NOT_FOUND is typically defined in <netdb.h>.
69 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
78 struct passwd *getpwnam (char *);
79 struct passwd *getpwuid (Uid_t);
84 struct passwd *getpwent (void);
85 #elif defined (VMS) && defined (my_getpwent)
86 struct passwd *Perl_my_getpwent (void);
95 struct group *getgrnam (char *);
96 struct group *getgrgid (Gid_t);
100 struct group *getgrent (void);
106 # if defined(_MSC_VER) || defined(__MINGW32__)
107 # include <sys/utime.h>
114 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
117 # define my_chsize PerlLIO_chsize
122 #else /* no flock() */
124 /* fcntl.h might not have been included, even if it exists, because
125 the current Configure only sets I_FCNTL if it's needed to pick up
126 the *_OK constants. Make sure it has been included before testing
127 the fcntl() locking constants. */
128 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
132 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
133 # define FLOCK fcntl_emulate_flock
134 # define FCNTL_EMULATE_FLOCK
135 # else /* no flock() or fcntl(F_SETLK,...) */
137 # define FLOCK lockf_emulate_flock
138 # define LOCKF_EMULATE_FLOCK
140 # endif /* no flock() or fcntl(F_SETLK,...) */
143 static int FLOCK (int, int);
146 * These are the flock() constants. Since this sytems doesn't have
147 * flock(), the values of the constants are probably not available.
161 # endif /* emulating flock() */
163 #endif /* no flock() */
166 static char zero_but_true[ZBTLEN + 1] = "0 but true";
168 #if defined(I_SYS_ACCESS) && !defined(R_OK)
169 # include <sys/access.h>
172 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
173 # define FD_CLOEXEC 1 /* NeXT needs this */
176 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
177 #undef PERL_EFF_ACCESS_W_OK
178 #undef PERL_EFF_ACCESS_X_OK
180 /* F_OK unused: if stat() cannot find it... */
182 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
183 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
184 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
185 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
186 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
189 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
190 # ifdef I_SYS_SECURITY
191 # include <sys/security.h>
195 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
196 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
197 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
200 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
201 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
202 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
206 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
208 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
209 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
210 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
213 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
214 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
215 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
218 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
220 Uid_t ruid = getuid();
221 Uid_t euid = geteuid();
222 Gid_t rgid = getgid();
223 Gid_t egid = getegid();
227 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
228 Perl_croak(aTHX_ "switching effective uid is not implemented");
231 if (setreuid(euid, ruid))
234 if (setresuid(euid, ruid, (Uid_t)-1))
237 Perl_croak(aTHX_ "entering effective uid failed");
240 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
241 Perl_croak(aTHX_ "switching effective gid is not implemented");
244 if (setregid(egid, rgid))
247 if (setresgid(egid, rgid, (Gid_t)-1))
250 Perl_croak(aTHX_ "entering effective gid failed");
253 res = access(path, mode);
256 if (setreuid(ruid, euid))
259 if (setresuid(ruid, euid, (Uid_t)-1))
262 Perl_croak(aTHX_ "leaving effective uid failed");
265 if (setregid(rgid, egid))
268 if (setresgid(rgid, egid, (Gid_t)-1))
271 Perl_croak(aTHX_ "leaving effective gid failed");
276 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
277 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
278 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
281 #if !defined(PERL_EFF_ACCESS_R_OK)
282 /* With it or without it: anyway you get a warning: either that
283 it is unused, or it is declared static and never defined.
286 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
288 Perl_croak(aTHX_ "switching effective uid is not implemented");
304 if (PL_op->op_private & OPpOPEN_IN_RAW)
306 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
308 fp = PerlProc_popen(tmps, mode);
311 if (PL_curcop->cop_io) {
312 type = SvPV_nolen(PL_curcop->cop_io);
315 PerlIO_apply_layers(aTHX_ fp,mode,type);
317 if (gimme == G_VOID) {
319 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
323 else if (gimme == G_SCALAR) {
325 PL_rs = &PL_sv_undef;
326 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
327 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
339 if (sv_gets(sv, fp, 0) == Nullch) {
343 XPUSHs(sv_2mortal(sv));
344 if (SvLEN(sv) - SvCUR(sv) > 20) {
345 SvLEN_set(sv, SvCUR(sv)+1);
346 Renew(SvPVX(sv), SvLEN(sv), char);
351 STATUS_NATIVE_SET(PerlProc_pclose(fp));
352 TAINT; /* "I believe that this is not gratuitous!" */
355 STATUS_NATIVE_SET(-1);
356 if (gimme == G_SCALAR)
366 tryAMAGICunTARGET(iter, -1);
368 /* Note that we only ever get here if File::Glob fails to load
369 * without at the same time croaking, for some reason, or if
370 * perl was built with PERL_EXTERNAL_GLOB */
377 * The external globbing program may use things we can't control,
378 * so for security reasons we must assume the worst.
381 taint_proper(PL_no_security, "glob");
385 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
386 PL_last_in_gv = (GV*)*PL_stack_sp--;
388 SAVESPTR(PL_rs); /* This is not permanent, either. */
389 PL_rs = sv_2mortal(newSVpvn("\000", 1));
392 *SvPVX(PL_rs) = '\n';
396 result = do_readline();
403 PL_last_in_gv = cGVOP_gv;
404 return do_readline();
413 if (SP - MARK != 1) {
415 do_join(TARG, &PL_sv_no, MARK, SP);
422 tmps = SvPV(tmpsv, len);
425 (void)SvUPGRADE(error, SVt_PV);
426 if (SvPOK(error) && SvCUR(error))
427 sv_catpv(error, "\t...caught");
429 tmps = SvPV(tmpsv, len);
432 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
434 Perl_warn(aTHX_ "%"SVf, tmpsv);
446 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
448 if (SP - MARK != 1) {
450 do_join(TARG, &PL_sv_no, MARK, SP);
452 tmps = SvPV(tmpsv, len);
458 tmps = (SvROK(tmpsv) && PL_in_eval) ? Nullch : SvPV(tmpsv, len);
462 (void)SvUPGRADE(error, SVt_PV);
463 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
465 SvSetSV(error,tmpsv);
466 else if (sv_isobject(error)) {
467 HV *stash = SvSTASH(SvRV(error));
468 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
470 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
471 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
478 call_sv((SV*)GvCV(gv),
479 G_SCALAR|G_EVAL|G_KEEPERR);
480 sv_setsv(error,*PL_stack_sp--);
483 DIE(aTHX_ Nullformat);
486 if (SvPOK(error) && SvCUR(error))
487 sv_catpv(error, "\t...propagated");
489 tmps = SvPV(tmpsv, len);
493 tmpsv = sv_2mortal(newSVpvn("Died", 4));
495 DIE(aTHX_ "%"SVf, tmpsv);
515 DIE(aTHX_ PL_no_usym, "filehandle");
516 if ((io = GvIOp(gv)))
517 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
519 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
520 /* Method's args are same as ours ... */
521 /* ... except handle is replaced by the object */
522 *MARK-- = SvTIED_obj((SV*)io, mg);
526 call_method("OPEN", G_SCALAR);
539 tmps = SvPV(sv, len);
540 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
543 PUSHi( (I32)PL_forkprocess );
544 else if (PL_forkprocess == 0) /* we are a new child */
563 if (gv && (io = GvIO(gv))
564 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
567 XPUSHs(SvTIED_obj((SV*)io, mg));
570 call_method("CLOSE", G_SCALAR);
576 PUSHs(boolSV(do_close(gv, TRUE)));
596 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
597 DIE(aTHX_ PL_no_usym, "filehandle");
602 do_close(rgv, FALSE);
604 do_close(wgv, FALSE);
606 if (PerlProc_pipe(fd) < 0)
609 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
610 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
611 IoOFP(rstio) = IoIFP(rstio);
612 IoIFP(wstio) = IoOFP(wstio);
613 IoTYPE(rstio) = IoTYPE_RDONLY;
614 IoTYPE(wstio) = IoTYPE_WRONLY;
616 if (!IoIFP(rstio) || !IoOFP(wstio)) {
617 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
618 else PerlLIO_close(fd[0]);
619 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
620 else PerlLIO_close(fd[1]);
623 #if defined(HAS_FCNTL) && defined(F_SETFD)
624 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
625 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
632 DIE(aTHX_ PL_no_func, "pipe");
648 if (gv && (io = GvIO(gv))
649 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
652 XPUSHs(SvTIED_obj((SV*)io, mg));
655 call_method("FILENO", G_SCALAR);
661 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
662 /* Can't do this because people seem to do things like
663 defined(fileno($foo)) to check whether $foo is a valid fh.
664 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
665 report_evil_fh(gv, io, PL_op->op_type);
670 PUSHi(PerlIO_fileno(fp));
681 anum = PerlLIO_umask(0);
682 (void)PerlLIO_umask(anum);
685 anum = PerlLIO_umask(POPi);
686 TAINT_PROPER("umask");
689 /* Only DIE if trying to restrict permissions on `user' (self).
690 * Otherwise it's harmless and more useful to just return undef
691 * since 'group' and 'other' concepts probably don't exist here. */
692 if (MAXARG >= 1 && (POPi & 0700))
693 DIE(aTHX_ "umask not implemented");
694 XPUSHs(&PL_sv_undef);
716 if (gv && (io = GvIO(gv))
717 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
720 XPUSHs(SvTIED_obj((SV*)io, mg));
725 call_method("BINMODE", G_SCALAR);
732 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
733 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
734 report_evil_fh(gv, io, PL_op->op_type);
739 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
740 (discp) ? SvPV_nolen(discp) : Nullch)) {
758 I32 markoff = MARK - PL_stack_base;
760 int how = PERL_MAGIC_tied;
765 switch(SvTYPE(varsv)) {
767 methname = "TIEHASH";
768 HvEITER((HV *)varsv) = Null(HE *);
771 methname = "TIEARRAY";
774 #ifdef GV_UNIQUE_CHECK
775 if (GvUNIQUE((GV*)varsv)) {
776 Perl_croak(aTHX_ "Attempt to tie unique GV");
779 methname = "TIEHANDLE";
780 how = PERL_MAGIC_tiedscalar;
781 /* For tied filehandles, we apply tiedscalar magic to the IO
782 slot of the GP rather than the GV itself. AMS 20010812 */
784 GvIOp(varsv) = newIO();
785 varsv = (SV *)GvIOp(varsv);
788 methname = "TIESCALAR";
789 how = PERL_MAGIC_tiedscalar;
793 if (sv_isobject(*MARK)) {
795 PUSHSTACKi(PERLSI_MAGIC);
797 EXTEND(SP,(I32)items);
801 call_method(methname, G_SCALAR);
804 /* Not clear why we don't call call_method here too.
805 * perhaps to get different error message ?
807 stash = gv_stashsv(*MARK, FALSE);
808 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
809 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
810 methname, SvPV(*MARK,n_a));
813 PUSHSTACKi(PERLSI_MAGIC);
815 EXTEND(SP,(I32)items);
819 call_sv((SV*)GvCV(gv), G_SCALAR);
825 if (sv_isobject(sv)) {
826 sv_unmagic(varsv, how);
827 /* Croak if a self-tie on an aggregate is attempted. */
828 if (varsv == SvRV(sv) && how == PERL_MAGIC_tied)
830 "Self-ties of arrays and hashes are not supported");
831 sv_magic(varsv, sv, how, Nullch, 0);
834 SP = PL_stack_base + markoff;
844 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
845 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
847 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
850 if ((mg = SvTIED_mg(sv, how))) {
851 SV *obj = SvRV(mg->mg_obj);
855 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
856 isGV(gv) && (cv = GvCV(gv))) {
858 XPUSHs(SvTIED_obj((SV*)gv, mg));
859 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
862 call_sv((SV *)cv, G_VOID);
866 else if (ckWARN(WARN_UNTIE)) {
867 if (mg && SvREFCNT(obj) > 1)
868 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
869 "untie attempted while %"UVuf" inner references still exist",
870 (UV)SvREFCNT(obj) - 1 ) ;
873 sv_unmagic(sv, how) ;
883 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
884 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
886 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
889 if ((mg = SvTIED_mg(sv, how))) {
890 SV *osv = SvTIED_obj(sv, mg);
891 if (osv == mg->mg_obj)
892 osv = sv_mortalcopy(osv);
910 sv = sv_mortalcopy(&PL_sv_no);
911 sv_setpv(sv, "AnyDBM_File");
912 stash = gv_stashsv(sv, FALSE);
913 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
915 require_pv("AnyDBM_File.pm");
917 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
918 DIE(aTHX_ "No dbm on this machine");
928 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
930 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
933 call_sv((SV*)GvCV(gv), G_SCALAR);
936 if (!sv_isobject(TOPs)) {
941 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
944 call_sv((SV*)GvCV(gv), G_SCALAR);
948 if (sv_isobject(TOPs)) {
949 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
950 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
972 struct timeval timebuf;
973 struct timeval *tbuf = &timebuf;
977 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
982 # if BYTEORDER & 0xf0000
983 # define ORDERBYTE (0x88888888 - BYTEORDER)
985 # define ORDERBYTE (0x4444 - BYTEORDER)
991 for (i = 1; i <= 3; i++) {
999 /* little endians can use vecs directly */
1000 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1007 masksize = NFDBITS / NBBY;
1009 masksize = sizeof(long); /* documented int, everyone seems to use long */
1011 Zero(&fd_sets[0], 4, char*);
1014 # if SELECT_MIN_BITS > 1
1015 /* If SELECT_MIN_BITS is greater than one we most probably will want
1016 * to align the sizes with SELECT_MIN_BITS/8 because for example
1017 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1018 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1019 * on (sets/tests/clears bits) is 32 bits. */
1020 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1022 growsize = sizeof(fd_set);
1030 timebuf.tv_sec = (long)value;
1031 value -= (NV)timebuf.tv_sec;
1032 timebuf.tv_usec = (long)(value * 1000000.0);
1035 tbuf = Null(struct timeval*);
1037 for (i = 1; i <= 3; i++) {
1043 else if (!SvPOK(sv))
1044 SvPV_force(sv,n_a); /* force string conversion */
1047 Sv_Grow(sv, growsize);
1051 while (++j <= growsize) {
1055 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1057 New(403, fd_sets[i], growsize, char);
1058 for (offset = 0; offset < growsize; offset += masksize) {
1059 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1060 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1063 fd_sets[i] = SvPVX(sv);
1067 nfound = PerlSock_select(
1069 (Select_fd_set_t) fd_sets[1],
1070 (Select_fd_set_t) fd_sets[2],
1071 (Select_fd_set_t) fd_sets[3],
1073 for (i = 1; i <= 3; i++) {
1076 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1078 for (offset = 0; offset < growsize; offset += masksize) {
1079 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1080 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1082 Safefree(fd_sets[i]);
1089 if (GIMME == G_ARRAY && tbuf) {
1090 value = (NV)(timebuf.tv_sec) +
1091 (NV)(timebuf.tv_usec) / 1000000.0;
1092 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1093 sv_setnv(sv, value);
1097 DIE(aTHX_ "select not implemented");
1102 Perl_setdefout(pTHX_ GV *gv)
1105 (void)SvREFCNT_inc(gv);
1107 SvREFCNT_dec(PL_defoutgv);
1114 GV *newdefout, *egv;
1117 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1119 egv = GvEGV(PL_defoutgv);
1124 XPUSHs(&PL_sv_undef);
1126 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1127 if (gvp && *gvp == egv) {
1128 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1132 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1137 if (!GvIO(newdefout))
1138 gv_IOadd(newdefout);
1139 setdefout(newdefout);
1157 if (gv && (io = GvIO(gv))
1158 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1160 I32 gimme = GIMME_V;
1162 XPUSHs(SvTIED_obj((SV*)io, mg));
1165 call_method("GETC", gimme);
1168 if (gimme == G_SCALAR)
1169 SvSetMagicSV_nosteal(TARG, TOPs);
1172 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1173 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1174 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1175 report_evil_fh(gv, io, PL_op->op_type);
1179 sv_setpv(TARG, " ");
1180 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1181 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1182 /* Find out how many bytes the char needs */
1183 Size_t len = UTF8SKIP(SvPVX(TARG));
1186 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1187 SvCUR_set(TARG,1+len);
1197 return pp_sysread();
1201 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1203 register PERL_CONTEXT *cx;
1204 I32 gimme = GIMME_V;
1205 AV* padlist = CvPADLIST(cv);
1206 SV** svp = AvARRAY(padlist);
1212 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1214 SAVEVPTR(PL_curpad);
1215 PL_curpad = AvARRAY((AV*)svp[1]);
1217 setdefout(gv); /* locally select filehandle so $% et al work */
1250 SV *tmpsv = sv_newmortal();
1251 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1252 name = SvPV_nolen(tmpsv);
1255 DIE(aTHX_ "Undefined format \"%s\" called", name);
1256 DIE(aTHX_ "Not a format reference");
1259 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1261 IoFLAGS(io) &= ~IOf_DIDTOP;
1262 return doform(cv,gv,PL_op->op_next);
1268 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1269 register IO *io = GvIOp(gv);
1270 PerlIO *ofp = IoOFP(io);
1274 register PERL_CONTEXT *cx;
1276 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1277 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1280 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1281 PL_formtarget != PL_toptarget)
1285 if (!IoTOP_GV(io)) {
1289 if (!IoTOP_NAME(io)) {
1290 if (!IoFMT_NAME(io))
1291 IoFMT_NAME(io) = savepv(GvNAME(gv));
1292 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1293 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1294 if ((topgv && GvFORM(topgv)) ||
1295 !gv_fetchpv("top",FALSE,SVt_PVFM))
1296 IoTOP_NAME(io) = savepv(SvPVX(topname));
1298 IoTOP_NAME(io) = savepv("top");
1300 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1301 if (!topgv || !GvFORM(topgv)) {
1302 IoLINES_LEFT(io) = 100000000;
1305 IoTOP_GV(io) = topgv;
1307 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1308 I32 lines = IoLINES_LEFT(io);
1309 char *s = SvPVX(PL_formtarget);
1310 if (lines <= 0) /* Yow, header didn't even fit!!! */
1312 while (lines-- > 0) {
1313 s = strchr(s, '\n');
1319 STRLEN save = SvCUR(PL_formtarget);
1320 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1321 do_print(PL_formtarget, ofp);
1322 SvCUR_set(PL_formtarget, save);
1323 sv_chop(PL_formtarget, s);
1324 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1327 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1328 do_print(PL_formfeed, ofp);
1329 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1331 PL_formtarget = PL_toptarget;
1332 IoFLAGS(io) |= IOf_DIDTOP;
1335 DIE(aTHX_ "bad top format reference");
1340 SV *sv = sv_newmortal();
1341 gv_efullname4(sv, fgv, Nullch, FALSE);
1342 name = SvPV_nolen(sv);
1345 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1348 DIE(aTHX_ "Undefined top format called");
1352 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1353 return doform(cv,gv,PL_op);
1357 POPBLOCK(cx,PL_curpm);
1363 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1365 /* integrate with report_evil_fh()? */
1368 SV* sv = sv_newmortal();
1369 gv_efullname4(sv, gv, Nullch, FALSE);
1370 name = SvPV_nolen(sv);
1373 Perl_warner(aTHX_ packWARN(WARN_IO),
1374 "Filehandle %s opened only for input", name);
1376 Perl_warner(aTHX_ packWARN(WARN_IO),
1377 "Filehandle opened only for input");
1379 else if (ckWARN(WARN_CLOSED))
1380 report_evil_fh(gv, io, PL_op->op_type);
1385 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1386 if (ckWARN(WARN_IO))
1387 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1389 if (!do_print(PL_formtarget, fp))
1392 FmLINES(PL_formtarget) = 0;
1393 SvCUR_set(PL_formtarget, 0);
1394 *SvEND(PL_formtarget) = '\0';
1395 if (IoFLAGS(io) & IOf_FLUSH)
1396 (void)PerlIO_flush(fp);
1401 PL_formtarget = PL_bodytarget;
1403 return pop_return();
1408 dSP; dMARK; dORIGMARK;
1415 if (PL_op->op_flags & OPf_STACKED)
1420 if (gv && (io = GvIO(gv))
1421 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1423 if (MARK == ORIGMARK) {
1426 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1430 *MARK = SvTIED_obj((SV*)io, mg);
1433 call_method("PRINTF", G_SCALAR);
1436 MARK = ORIGMARK + 1;
1443 if (!(io = GvIO(gv))) {
1444 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1445 report_evil_fh(gv, io, PL_op->op_type);
1446 SETERRNO(EBADF,RMS$_IFI);
1449 else if (!(fp = IoOFP(io))) {
1450 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1451 /* integrate with report_evil_fh()? */
1455 gv_efullname4(sv, gv, Nullch, FALSE);
1456 name = SvPV_nolen(sv);
1459 Perl_warner(aTHX_ packWARN(WARN_IO),
1460 "Filehandle %s opened only for input", name);
1462 Perl_warner(aTHX_ packWARN(WARN_IO),
1463 "Filehandle opened only for input");
1465 else if (ckWARN(WARN_CLOSED))
1466 report_evil_fh(gv, io, PL_op->op_type);
1468 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1472 do_sprintf(sv, SP - MARK, MARK + 1);
1473 if (!do_print(sv, fp))
1476 if (IoFLAGS(io) & IOf_FLUSH)
1477 if (PerlIO_flush(fp) == EOF)
1488 PUSHs(&PL_sv_undef);
1509 /* Need TIEHANDLE method ? */
1511 tmps = SvPV(sv, len);
1512 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1513 IoLINES(GvIOp(gv)) = 0;
1517 PUSHs(&PL_sv_undef);
1524 dSP; dMARK; dORIGMARK; dTARGET;
1531 Sock_size_t bufsize;
1538 bool charstart = FALSE;
1539 STRLEN charskip = 0;
1543 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1544 && gv && (io = GvIO(gv))
1545 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1550 *MARK = SvTIED_obj((SV*)io, mg);
1552 call_method("READ", G_SCALAR);
1565 sv_setpvn(bufsv, "", 0);
1566 length = SvIVx(*++MARK);
1569 offset = SvIVx(*++MARK);
1573 if (!io || !IoIFP(io))
1575 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1576 buffer = SvPVutf8_force(bufsv, blen);
1577 /* UTF8 may not have been set if they are all low bytes */
1581 buffer = SvPV_force(bufsv, blen);
1584 DIE(aTHX_ "Negative length");
1592 if (PL_op->op_type == OP_RECV) {
1593 char namebuf[MAXPATHLEN];
1594 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1595 bufsize = sizeof (struct sockaddr_in);
1597 bufsize = sizeof namebuf;
1599 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1603 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1604 /* 'offset' means 'flags' here */
1605 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1606 (struct sockaddr *)namebuf, &bufsize);
1610 /* Bogus return without padding */
1611 bufsize = sizeof (struct sockaddr_in);
1613 SvCUR_set(bufsv, count);
1614 *SvEND(bufsv) = '\0';
1615 (void)SvPOK_only(bufsv);
1619 /* This should not be marked tainted if the fp is marked clean */
1620 if (!(IoFLAGS(io) & IOf_UNTAINT))
1621 SvTAINTED_on(bufsv);
1623 sv_setpvn(TARG, namebuf, bufsize);
1628 if (PL_op->op_type == OP_RECV)
1629 DIE(aTHX_ PL_no_sock_func, "recv");
1631 if (DO_UTF8(bufsv)) {
1632 /* offset adjust in characters not bytes */
1633 blen = sv_len_utf8(bufsv);
1636 if (-offset > (int)blen)
1637 DIE(aTHX_ "Offset outside string");
1640 if (DO_UTF8(bufsv)) {
1641 /* convert offset-as-chars to offset-as-bytes */
1642 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1645 bufsize = SvCUR(bufsv);
1646 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1647 if (offset > bufsize) { /* Zero any newly allocated space */
1648 Zero(buffer+bufsize, offset-bufsize, char);
1650 buffer = buffer + offset;
1652 if (PL_op->op_type == OP_SYSREAD) {
1653 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1654 if (IoTYPE(io) == IoTYPE_SOCKET) {
1655 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1661 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1666 #ifdef HAS_SOCKET__bad_code_maybe
1667 if (IoTYPE(io) == IoTYPE_SOCKET) {
1668 char namebuf[MAXPATHLEN];
1669 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1670 bufsize = sizeof (struct sockaddr_in);
1672 bufsize = sizeof namebuf;
1674 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1675 (struct sockaddr *)namebuf, &bufsize);
1680 count = PerlIO_read(IoIFP(io), buffer, length);
1681 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1682 if (count == 0 && PerlIO_error(IoIFP(io)))
1686 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1688 /* integrate with report_evil_fh()? */
1691 SV* sv = sv_newmortal();
1692 gv_efullname4(sv, gv, Nullch, FALSE);
1693 name = SvPV_nolen(sv);
1696 Perl_warner(aTHX_ packWARN(WARN_IO),
1697 "Filehandle %s opened only for output", name);
1699 Perl_warner(aTHX_ packWARN(WARN_IO),
1700 "Filehandle opened only for output");
1704 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1705 *SvEND(bufsv) = '\0';
1706 (void)SvPOK_only(bufsv);
1707 if (fp_utf8 && !IN_BYTES) {
1708 /* Look at utf8 we got back and count the characters */
1709 char *bend = buffer + count;
1710 while (buffer < bend) {
1712 skip = UTF8SKIP(buffer);
1715 if (buffer - charskip + skip > bend) {
1716 /* partial character - try for rest of it */
1717 length = skip - (bend-buffer);
1718 offset = bend - SvPVX(bufsv);
1730 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1731 provided amount read (count) was what was requested (length)
1733 if (got < wanted && count == length) {
1734 length = wanted - got;
1735 offset = bend - SvPVX(bufsv);
1738 /* return value is character count */
1743 /* This should not be marked tainted if the fp is marked clean */
1744 if (!(IoFLAGS(io) & IOf_UNTAINT))
1745 SvTAINTED_on(bufsv);
1758 int items = (SP - PL_stack_base) - TOPMARK;
1762 sv = sv_2mortal(newSViv(sv_len(*SP)));
1771 dSP; dMARK; dORIGMARK; dTARGET;
1782 if (PL_op->op_type == OP_SYSWRITE
1783 && gv && (io = GvIO(gv))
1784 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1789 *MARK = SvTIED_obj((SV*)io, mg);
1791 call_method("WRITE", G_SCALAR);
1802 #if Size_t_size > IVSIZE
1803 length = (Size_t)SvNVx(*++MARK);
1805 length = (Size_t)SvIVx(*++MARK);
1807 if ((SSize_t)length < 0)
1808 DIE(aTHX_ "Negative length");
1811 if (!io || !IoIFP(io)) {
1813 if (ckWARN(WARN_CLOSED))
1814 report_evil_fh(gv, io, PL_op->op_type);
1818 if (PerlIO_isutf8(IoIFP(io))) {
1819 buffer = SvPVutf8(bufsv, blen);
1823 sv_utf8_downgrade(bufsv, FALSE);
1824 buffer = SvPV(bufsv, blen);
1827 if (PL_op->op_type == OP_SYSWRITE) {
1829 if (DO_UTF8(bufsv)) {
1830 /* length and offset are in chars */
1831 blen = sv_len_utf8(bufsv);
1834 offset = SvIVx(*++MARK);
1836 if (-offset > (IV)blen)
1837 DIE(aTHX_ "Offset outside string");
1839 } else if (offset >= (IV)blen && blen > 0)
1840 DIE(aTHX_ "Offset outside string");
1843 if (length > blen - offset)
1844 length = blen - offset;
1845 if (DO_UTF8(bufsv)) {
1846 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1847 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1850 buffer = buffer+offset;
1852 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1853 if (IoTYPE(io) == IoTYPE_SOCKET) {
1854 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1860 /* See the note at doio.c:do_print about filesize limits. --jhi */
1861 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1866 else if (SP > MARK) {
1869 sockbuf = SvPVx(*++MARK, mlen);
1870 /* length is really flags */
1871 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1872 length, (struct sockaddr *)sockbuf, mlen);
1875 /* length is really flags */
1876 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1879 DIE(aTHX_ PL_no_sock_func, "send");
1885 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1886 #if Size_t_size > IVSIZE
1900 return pp_sysread();
1911 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1913 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1915 if (io && !IoIFP(io)) {
1916 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1918 IoFLAGS(io) &= ~IOf_START;
1919 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1920 sv_setpvn(GvSV(gv), "-", 1);
1921 SvSETMAGIC(GvSV(gv));
1923 else if (!nextargv(gv))
1928 gv = PL_last_in_gv; /* eof */
1931 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1933 if (gv && (io = GvIO(gv))
1934 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1937 XPUSHs(SvTIED_obj((SV*)io, mg));
1940 call_method("EOF", G_SCALAR);
1946 PUSHs(boolSV(!gv || do_eof(gv)));
1960 gv = PL_last_in_gv = (GV*)POPs;
1962 if (gv && (io = GvIO(gv))
1963 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1966 XPUSHs(SvTIED_obj((SV*)io, mg));
1969 call_method("TELL", G_SCALAR);
1975 #if LSEEKSIZE > IVSIZE
1976 PUSHn( do_tell(gv) );
1978 PUSHi( do_tell(gv) );
1985 return pp_sysseek();
1994 #if LSEEKSIZE > IVSIZE
1995 Off_t offset = (Off_t)SvNVx(POPs);
1997 Off_t offset = (Off_t)SvIVx(POPs);
2001 gv = PL_last_in_gv = (GV*)POPs;
2003 if (gv && (io = GvIO(gv))
2004 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2007 XPUSHs(SvTIED_obj((SV*)io, mg));
2008 #if LSEEKSIZE > IVSIZE
2009 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2011 XPUSHs(sv_2mortal(newSViv(offset)));
2013 XPUSHs(sv_2mortal(newSViv(whence)));
2016 call_method("SEEK", G_SCALAR);
2022 if (PL_op->op_type == OP_SEEK)
2023 PUSHs(boolSV(do_seek(gv, offset, whence)));
2025 Off_t sought = do_sysseek(gv, offset, whence);
2027 PUSHs(&PL_sv_undef);
2030 #if LSEEKSIZE > IVSIZE
2035 : newSVpvn(zero_but_true, ZBTLEN);
2036 PUSHs(sv_2mortal(sv));
2045 /* There seems to be no consensus on the length type of truncate()
2046 * and ftruncate(), both off_t and size_t have supporters. In
2047 * general one would think that when using large files, off_t is
2048 * at least as wide as size_t, so using an off_t should be okay. */
2049 /* XXX Configure probe for the length type of *truncate() needed XXX */
2052 #if Size_t_size > IVSIZE
2057 /* Checking for length < 0 is problematic as the type might or
2058 * might not be signed: if it is not, clever compilers will moan. */
2059 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2061 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2067 if (PL_op->op_flags & OPf_SPECIAL) {
2068 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2071 TAINT_PROPER("truncate");
2072 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2075 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2077 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2079 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2088 if (SvTYPE(sv) == SVt_PVGV) {
2089 tmpgv = (GV*)sv; /* *main::FRED for example */
2092 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2093 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2097 name = SvPV(sv, n_a);
2098 TAINT_PROPER("truncate");
2100 if (truncate(name, len) < 0)
2106 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2109 if (my_chsize(tmpfd, len) < 0)
2111 PerlLIO_close(tmpfd);
2120 SETERRNO(EBADF,RMS$_IFI);
2124 DIE(aTHX_ "truncate not implemented");
2137 unsigned int func = POPu;
2138 int optype = PL_op->op_type;
2142 IO *io = gv ? GvIOn(gv) : 0;
2144 if (!io || !argsv || !IoIFP(io)) {
2145 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2146 report_evil_fh(gv, io, PL_op->op_type);
2147 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
2151 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2154 s = SvPV_force(argsv, len);
2155 need = IOCPARM_LEN(func);
2157 s = Sv_Grow(argsv, need + 1);
2158 SvCUR_set(argsv, need);
2161 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2164 retval = SvIV(argsv);
2165 s = INT2PTR(char*,retval); /* ouch */
2168 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2170 if (optype == OP_IOCTL)
2172 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2174 DIE(aTHX_ "ioctl is not implemented");
2178 #if defined(OS2) && defined(__EMX__)
2179 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2181 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2184 DIE(aTHX_ "fcntl is not implemented");
2188 if (s[SvCUR(argsv)] != 17)
2189 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2191 s[SvCUR(argsv)] = 0; /* put our null back */
2192 SvSETMAGIC(argsv); /* Assume it has changed */
2201 PUSHp(zero_but_true, ZBTLEN);
2221 if (gv && (io = GvIO(gv)))
2228 (void)PerlIO_flush(fp);
2229 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2232 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2233 report_evil_fh(gv, io, PL_op->op_type);
2235 SETERRNO(EBADF,RMS$_IFI);
2240 DIE(aTHX_ PL_no_func, "flock()");
2252 int protocol = POPi;
2258 io = gv ? GvIOn(gv) : NULL;
2261 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2262 report_evil_fh(gv, io, PL_op->op_type);
2264 do_close(gv, FALSE);
2265 SETERRNO(EBADF,LIB$_INVARG);
2270 do_close(gv, FALSE);
2272 TAINT_PROPER("socket");
2273 fd = PerlSock_socket(domain, type, protocol);
2276 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2277 IoOFP(io) = PerlIO_fdopen(fd, "w");
2278 IoTYPE(io) = IoTYPE_SOCKET;
2279 if (!IoIFP(io) || !IoOFP(io)) {
2280 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2281 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2282 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2285 #if defined(HAS_FCNTL) && defined(F_SETFD)
2286 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2290 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2295 DIE(aTHX_ PL_no_sock_func, "socket");
2301 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2307 int protocol = POPi;
2314 io1 = gv1 ? GvIOn(gv1) : NULL;
2315 io2 = gv2 ? GvIOn(gv2) : NULL;
2316 if (!gv1 || !gv2 || !io1 || !io2) {
2317 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2319 report_evil_fh(gv1, io1, PL_op->op_type);
2321 report_evil_fh(gv1, io2, PL_op->op_type);
2324 do_close(gv1, FALSE);
2326 do_close(gv2, FALSE);
2331 do_close(gv1, FALSE);
2333 do_close(gv2, FALSE);
2335 TAINT_PROPER("socketpair");
2336 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2338 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2339 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
2340 IoTYPE(io1) = IoTYPE_SOCKET;
2341 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2342 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
2343 IoTYPE(io2) = IoTYPE_SOCKET;
2344 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2345 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2346 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2347 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2348 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2349 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2350 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2353 #if defined(HAS_FCNTL) && defined(F_SETFD)
2354 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2355 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2360 DIE(aTHX_ PL_no_sock_func, "socketpair");
2368 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2369 extern void GETPRIVMODE();
2370 extern void GETUSERMODE();
2375 register IO *io = GvIOn(gv);
2379 int mpeprivmode = 0;
2382 if (!io || !IoIFP(io))
2385 addr = SvPV(addrsv, len);
2386 TAINT_PROPER("bind");
2387 #ifdef MPE /* Deal with MPE bind() peculiarities */
2388 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2389 /* The address *MUST* stupidly be zero. */
2390 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2391 /* PRIV mode is required to bind() to ports < 1024. */
2392 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2393 ((struct sockaddr_in *)addr)->sin_port > 0) {
2394 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2399 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2400 (struct sockaddr *)addr, len) >= 0)
2403 #ifdef MPE /* Switch back to USER mode */
2414 if (ckWARN(WARN_CLOSED))
2415 report_evil_fh(gv, io, PL_op->op_type);
2416 SETERRNO(EBADF,SS$_IVCHAN);
2419 DIE(aTHX_ PL_no_sock_func, "bind");
2430 register IO *io = GvIOn(gv);
2433 if (!io || !IoIFP(io))
2436 addr = SvPV(addrsv, len);
2437 TAINT_PROPER("connect");
2438 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2444 if (ckWARN(WARN_CLOSED))
2445 report_evil_fh(gv, io, PL_op->op_type);
2446 SETERRNO(EBADF,SS$_IVCHAN);
2449 DIE(aTHX_ PL_no_sock_func, "connect");
2459 register IO *io = gv ? GvIOn(gv) : NULL;
2461 if (!gv || !io || !IoIFP(io))
2464 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2470 if (ckWARN(WARN_CLOSED))
2471 report_evil_fh(gv, io, PL_op->op_type);
2472 SETERRNO(EBADF,SS$_IVCHAN);
2475 DIE(aTHX_ PL_no_sock_func, "listen");
2487 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2488 Sock_size_t len = sizeof saddr;
2501 if (!gstio || !IoIFP(gstio))
2505 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2509 do_close(ngv, FALSE);
2510 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2511 /* FIXME: we dup(fd) here so that refcounting of fd's does not inhibit
2512 fclose of IoOFP's FILE * - and hence leak memory.
2513 Special treatment of _this_ case of IoIFP != IoOFP seems wrong.
2515 IoOFP(nstio) = PerlIO_fdopen(fd2 = PerlLIO_dup(fd), "w");
2516 IoTYPE(nstio) = IoTYPE_SOCKET;
2517 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2518 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2519 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2520 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2523 #if defined(HAS_FCNTL) && defined(F_SETFD)
2524 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2525 fcntl(fd2, F_SETFD, fd2 > PL_maxsysfd); /* ensure close-on-exec */
2529 len = sizeof saddr; /* EPOC somehow truncates info */
2530 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2533 PUSHp((char *)&saddr, len);
2537 if (ckWARN(WARN_CLOSED))
2538 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2539 SETERRNO(EBADF,SS$_IVCHAN);
2545 DIE(aTHX_ PL_no_sock_func, "accept");
2555 register IO *io = GvIOn(gv);
2557 if (!io || !IoIFP(io))
2560 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2564 if (ckWARN(WARN_CLOSED))
2565 report_evil_fh(gv, io, PL_op->op_type);
2566 SETERRNO(EBADF,SS$_IVCHAN);
2569 DIE(aTHX_ PL_no_sock_func, "shutdown");
2576 return pp_ssockopt();
2578 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2586 int optype = PL_op->op_type;
2589 unsigned int optname;
2595 if (optype == OP_GSOCKOPT)
2596 sv = sv_2mortal(NEWSV(22, 257));
2599 optname = (unsigned int) POPi;
2600 lvl = (unsigned int) POPi;
2604 if (!io || !IoIFP(io))
2607 fd = PerlIO_fileno(IoIFP(io));
2611 (void)SvPOK_only(sv);
2615 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2630 aint = (int)SvIV(sv);
2634 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2643 if (ckWARN(WARN_CLOSED))
2644 report_evil_fh(gv, io, optype);
2645 SETERRNO(EBADF,SS$_IVCHAN);
2650 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2657 return pp_getpeername();
2659 DIE(aTHX_ PL_no_sock_func, "getsockname");
2667 int optype = PL_op->op_type;
2671 register IO *io = GvIOn(gv);
2674 if (!io || !IoIFP(io))
2677 sv = sv_2mortal(NEWSV(22, 257));
2678 (void)SvPOK_only(sv);
2682 fd = PerlIO_fileno(IoIFP(io));
2684 case OP_GETSOCKNAME:
2685 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2688 case OP_GETPEERNAME:
2689 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2691 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2693 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";
2694 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2695 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2696 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2697 sizeof(u_short) + sizeof(struct in_addr))) {
2704 #ifdef BOGUS_GETNAME_RETURN
2705 /* Interactive Unix, getpeername() and getsockname()
2706 does not return valid namelen */
2707 if (len == BOGUS_GETNAME_RETURN)
2708 len = sizeof(struct sockaddr);
2716 if (ckWARN(WARN_CLOSED))
2717 report_evil_fh(gv, io, optype);
2718 SETERRNO(EBADF,SS$_IVCHAN);
2723 DIE(aTHX_ PL_no_sock_func, "getpeername");
2742 if (PL_op->op_flags & OPf_REF) {
2744 if (PL_op->op_type == OP_LSTAT) {
2745 if (gv != PL_defgv) {
2746 if (ckWARN(WARN_IO))
2747 Perl_warner(aTHX_ packWARN(WARN_IO),
2748 "lstat() on filehandle %s", GvENAME(gv));
2749 } else if (PL_laststype != OP_LSTAT)
2750 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2754 if (gv != PL_defgv) {
2755 PL_laststype = OP_STAT;
2757 sv_setpv(PL_statname, "");
2758 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2759 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2761 if (PL_laststatval < 0) {
2762 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2763 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2769 if (SvTYPE(sv) == SVt_PVGV) {
2773 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2775 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2776 Perl_warner(aTHX_ packWARN(WARN_IO),
2777 "lstat() on filehandle %s", GvENAME(gv));
2780 sv_setpv(PL_statname, SvPV(sv,n_a));
2783 PL_laststype = PL_op->op_type;
2784 if (PL_op->op_type == OP_LSTAT)
2785 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2788 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2789 if (PL_laststatval < 0) {
2790 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2791 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2797 if (gimme != G_ARRAY) {
2798 if (gimme != G_VOID)
2799 XPUSHs(boolSV(max));
2805 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2806 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2807 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2808 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2809 #if Uid_t_size > IVSIZE
2810 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2812 # if Uid_t_sign <= 0
2813 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2815 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2818 #if Gid_t_size > IVSIZE
2819 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2821 # if Gid_t_sign <= 0
2822 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2824 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2827 #ifdef USE_STAT_RDEV
2828 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2830 PUSHs(sv_2mortal(newSVpvn("", 0)));
2832 #if Off_t_size > IVSIZE
2833 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2835 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2838 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2839 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2840 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2842 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2843 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2844 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2846 #ifdef USE_STAT_BLOCKS
2847 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2848 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2850 PUSHs(sv_2mortal(newSVpvn("", 0)));
2851 PUSHs(sv_2mortal(newSVpvn("", 0)));
2861 #if defined(HAS_ACCESS) && defined(R_OK)
2863 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2864 result = access(TOPpx, R_OK);
2879 if (cando(S_IRUSR, 0, &PL_statcache))
2888 #if defined(HAS_ACCESS) && defined(W_OK)
2890 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2891 result = access(TOPpx, W_OK);
2906 if (cando(S_IWUSR, 0, &PL_statcache))
2915 #if defined(HAS_ACCESS) && defined(X_OK)
2917 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2918 result = access(TOPpx, X_OK);
2933 if (cando(S_IXUSR, 0, &PL_statcache))
2942 #ifdef PERL_EFF_ACCESS_R_OK
2944 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2945 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2960 if (cando(S_IRUSR, 1, &PL_statcache))
2969 #ifdef PERL_EFF_ACCESS_W_OK
2971 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2972 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2987 if (cando(S_IWUSR, 1, &PL_statcache))
2996 #ifdef PERL_EFF_ACCESS_X_OK
2998 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2999 result = PERL_EFF_ACCESS_X_OK(TOPpx);
3014 if (cando(S_IXUSR, 1, &PL_statcache))
3021 I32 result = my_stat();
3030 return pp_ftrowned();
3035 I32 result = my_stat();
3039 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3047 I32 result = my_stat();
3051 if (PL_statcache.st_size == 0)
3058 I32 result = my_stat();
3062 #if Off_t_size > IVSIZE
3063 PUSHn(PL_statcache.st_size);
3065 PUSHi(PL_statcache.st_size);
3072 I32 result = my_stat();
3076 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3082 I32 result = my_stat();
3086 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3092 I32 result = my_stat();
3096 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3102 I32 result = my_stat();
3106 if (S_ISSOCK(PL_statcache.st_mode))
3113 I32 result = my_stat();
3117 if (S_ISCHR(PL_statcache.st_mode))
3124 I32 result = my_stat();
3128 if (S_ISBLK(PL_statcache.st_mode))
3135 I32 result = my_stat();
3139 if (S_ISREG(PL_statcache.st_mode))
3146 I32 result = my_stat();
3150 if (S_ISDIR(PL_statcache.st_mode))
3157 I32 result = my_stat();
3161 if (S_ISFIFO(PL_statcache.st_mode))
3168 I32 result = my_lstat();
3172 if (S_ISLNK(PL_statcache.st_mode))
3181 I32 result = my_stat();
3185 if (PL_statcache.st_mode & S_ISUID)
3195 I32 result = my_stat();
3199 if (PL_statcache.st_mode & S_ISGID)
3209 I32 result = my_stat();
3213 if (PL_statcache.st_mode & S_ISVTX)
3224 char *tmps = Nullch;
3227 if (PL_op->op_flags & OPf_REF)
3229 else if (isGV(TOPs))
3231 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3232 gv = (GV*)SvRV(POPs);
3234 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3236 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3237 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3238 else if (tmps && isDIGIT(*tmps))
3242 if (PerlLIO_isatty(fd))
3247 #if defined(atarist) /* this will work with atariST. Configure will
3248 make guesses for other systems. */
3249 # define FILE_base(f) ((f)->_base)
3250 # define FILE_ptr(f) ((f)->_ptr)
3251 # define FILE_cnt(f) ((f)->_cnt)
3252 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3262 register STDCHAR *s;
3269 if (PL_op->op_flags & OPf_REF)
3271 else if (isGV(TOPs))
3273 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3274 gv = (GV*)SvRV(POPs);
3280 if (gv == PL_defgv) {
3282 io = GvIO(PL_statgv);
3285 goto really_filename;
3290 PL_laststatval = -1;
3291 sv_setpv(PL_statname, "");
3292 io = GvIO(PL_statgv);
3294 if (io && IoIFP(io)) {
3295 if (! PerlIO_has_base(IoIFP(io)))
3296 DIE(aTHX_ "-T and -B not implemented on filehandles");
3297 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3298 if (PL_laststatval < 0)
3300 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3301 if (PL_op->op_type == OP_FTTEXT)
3306 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3307 i = PerlIO_getc(IoIFP(io));
3309 (void)PerlIO_ungetc(IoIFP(io),i);
3311 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3313 len = PerlIO_get_bufsiz(IoIFP(io));
3314 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3315 /* sfio can have large buffers - limit to 512 */
3320 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3322 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3324 SETERRNO(EBADF,RMS$_IFI);
3332 PL_laststatval = -1;
3333 PL_laststype = OP_STAT;
3334 sv_setpv(PL_statname, SvPV(sv, n_a));
3335 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3336 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3337 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3340 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3341 if (PL_laststatval < 0) {
3342 (void)PerlIO_close(fp);
3345 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3346 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3347 (void)PerlIO_close(fp);
3349 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3350 RETPUSHNO; /* special case NFS directories */
3351 RETPUSHYES; /* null file is anything */
3356 /* now scan s to look for textiness */
3357 /* XXX ASCII dependent code */
3359 #if defined(DOSISH) || defined(USEMYBINMODE)
3360 /* ignore trailing ^Z on short files */
3361 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3365 for (i = 0; i < len; i++, s++) {
3366 if (!*s) { /* null never allowed in text */
3371 else if (!(isPRINT(*s) || isSPACE(*s)))
3374 else if (*s & 128) {
3376 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3379 /* utf8 characters don't count as odd */
3380 if (UTF8_IS_START(*s)) {
3381 int ulen = UTF8SKIP(s);
3382 if (ulen < len - i) {
3384 for (j = 1; j < ulen; j++) {
3385 if (!UTF8_IS_CONTINUATION(s[j]))
3388 --ulen; /* loop does extra increment */
3398 *s != '\n' && *s != '\r' && *s != '\b' &&
3399 *s != '\t' && *s != '\f' && *s != 27)
3404 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3429 if( !tmps || !*tmps ) {
3430 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3431 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3433 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3438 deprecate("chdir('') or chdir(undef) as chdir()");
3439 tmps = SvPV(*svp, n_a);
3443 TAINT_PROPER("chdir");
3448 TAINT_PROPER("chdir");
3449 PUSHi( PerlDir_chdir(tmps) >= 0 );
3451 /* Clear the DEFAULT element of ENV so we'll get the new value
3453 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3461 dSP; dMARK; dTARGET;
3462 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3468 DIE(aTHX_ PL_no_func, "chown");
3478 TAINT_PROPER("chroot");
3479 PUSHi( chroot(tmps) >= 0 );
3482 DIE(aTHX_ PL_no_func, "chroot");
3488 dSP; dMARK; dTARGET;
3490 value = (I32)apply(PL_op->op_type, MARK, SP);
3498 dSP; dMARK; dTARGET;
3500 value = (I32)apply(PL_op->op_type, MARK, SP);
3508 dSP; dMARK; dTARGET;
3510 value = (I32)apply(PL_op->op_type, MARK, SP);
3522 char *tmps2 = POPpx;
3523 char *tmps = SvPV(TOPs, n_a);
3524 TAINT_PROPER("rename");
3526 anum = PerlLIO_rename(tmps, tmps2);
3528 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3529 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3532 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3533 (void)UNLINK(tmps2);
3534 if (!(anum = link(tmps, tmps2)))
3535 anum = UNLINK(tmps);
3548 char *tmps2 = POPpx;
3549 char *tmps = SvPV(TOPs, n_a);
3550 TAINT_PROPER("link");
3551 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3554 DIE(aTHX_ PL_no_func, "link");
3563 char *tmps2 = POPpx;
3564 char *tmps = SvPV(TOPs, n_a);
3565 TAINT_PROPER("symlink");
3566 SETi( symlink(tmps, tmps2) >= 0 );
3569 DIE(aTHX_ PL_no_func, "symlink");
3579 char buf[MAXPATHLEN];
3583 #ifndef INCOMPLETE_TAINTS
3587 len = readlink(tmps, buf, sizeof(buf) - 1);
3595 RETSETUNDEF; /* just pretend it's a normal file */
3599 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3601 S_dooneliner(pTHX_ char *cmd, char *filename)
3603 char *save_filename = filename;
3609 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3610 strcpy(cmdline, cmd);
3611 strcat(cmdline, " ");
3612 for (s = cmdline + strlen(cmdline); *filename; ) {
3617 myfp = PerlProc_popen(cmdline, "r");
3621 SV *tmpsv = sv_newmortal();
3622 /* Need to save/restore 'PL_rs' ?? */
3623 s = sv_gets(tmpsv, myfp, 0);
3624 (void)PerlProc_pclose(myfp);
3628 #ifdef HAS_SYS_ERRLIST
3633 /* you don't see this */
3635 #ifdef HAS_SYS_ERRLIST
3643 if (instr(s, errmsg)) {
3650 #define EACCES EPERM
3652 if (instr(s, "cannot make"))
3653 SETERRNO(EEXIST,RMS$_FEX);
3654 else if (instr(s, "existing file"))
3655 SETERRNO(EEXIST,RMS$_FEX);
3656 else if (instr(s, "ile exists"))
3657 SETERRNO(EEXIST,RMS$_FEX);
3658 else if (instr(s, "non-exist"))
3659 SETERRNO(ENOENT,RMS$_FNF);
3660 else if (instr(s, "does not exist"))
3661 SETERRNO(ENOENT,RMS$_FNF);
3662 else if (instr(s, "not empty"))
3663 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3664 else if (instr(s, "cannot access"))
3665 SETERRNO(EACCES,RMS$_PRV);
3667 SETERRNO(EPERM,RMS$_PRV);
3670 else { /* some mkdirs return no failure indication */
3671 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3672 if (PL_op->op_type == OP_RMDIR)
3677 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3702 tmps = SvPV(TOPs, len);
3703 /* Different operating and file systems take differently to
3704 * trailing slashes. According to POSIX 1003.1 1996 Edition
3705 * any number of trailing slashes should be allowed.
3706 * Thusly we snip them away so that even non-conforming
3707 * systems are happy. */
3708 /* We should probably do this "filtering" for all
3709 * the functions that expect (potentially) directory names:
3710 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3711 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3712 if (len > 1 && tmps[len-1] == '/') {
3713 while (tmps[len] == '/' && len > 1)
3715 tmps = savepvn(tmps, len);
3719 TAINT_PROPER("mkdir");
3721 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3723 SETi( dooneliner("mkdir", tmps) );
3724 oldumask = PerlLIO_umask(0);
3725 PerlLIO_umask(oldumask);
3726 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3740 TAINT_PROPER("rmdir");
3742 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3744 XPUSHi( dooneliner("rmdir", tmps) );
3749 /* Directory calls. */
3753 #if defined(Direntry_t) && defined(HAS_READDIR)
3756 char *dirname = POPpx;
3758 register IO *io = GvIOn(gv);
3764 PerlDir_close(IoDIRP(io));
3765 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3771 SETERRNO(EBADF,RMS$_DIR);
3774 DIE(aTHX_ PL_no_dir_func, "opendir");
3780 #if defined(Direntry_t) && defined(HAS_READDIR)
3782 #if !defined(I_DIRENT) && !defined(VMS)
3783 Direntry_t *readdir (DIR *);
3785 register Direntry_t *dp;
3787 register IO *io = GvIOn(gv);
3790 if (!io || !IoDIRP(io))
3793 if (GIMME == G_ARRAY) {
3795 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3797 sv = newSVpvn(dp->d_name, dp->d_namlen);
3799 sv = newSVpv(dp->d_name, 0);
3801 #ifndef INCOMPLETE_TAINTS
3802 if (!(IoFLAGS(io) & IOf_UNTAINT))
3805 XPUSHs(sv_2mortal(sv));
3809 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3812 sv = newSVpvn(dp->d_name, dp->d_namlen);
3814 sv = newSVpv(dp->d_name, 0);
3816 #ifndef INCOMPLETE_TAINTS
3817 if (!(IoFLAGS(io) & IOf_UNTAINT))
3820 XPUSHs(sv_2mortal(sv));
3826 SETERRNO(EBADF,RMS$_ISI);
3827 if (GIMME == G_ARRAY)
3832 DIE(aTHX_ PL_no_dir_func, "readdir");
3838 #if defined(HAS_TELLDIR) || defined(telldir)
3840 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3841 /* XXX netbsd still seemed to.
3842 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3843 --JHI 1999-Feb-02 */
3844 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3845 long telldir (DIR *);
3848 register IO *io = GvIOn(gv);
3850 if (!io || !IoDIRP(io))
3853 PUSHi( PerlDir_tell(IoDIRP(io)) );
3857 SETERRNO(EBADF,RMS$_ISI);
3860 DIE(aTHX_ PL_no_dir_func, "telldir");
3866 #if defined(HAS_SEEKDIR) || defined(seekdir)
3870 register IO *io = GvIOn(gv);
3872 if (!io || !IoDIRP(io))
3875 (void)PerlDir_seek(IoDIRP(io), along);
3880 SETERRNO(EBADF,RMS$_ISI);
3883 DIE(aTHX_ PL_no_dir_func, "seekdir");
3889 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3892 register IO *io = GvIOn(gv);
3894 if (!io || !IoDIRP(io))
3897 (void)PerlDir_rewind(IoDIRP(io));
3901 SETERRNO(EBADF,RMS$_ISI);
3904 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3910 #if defined(Direntry_t) && defined(HAS_READDIR)
3913 register IO *io = GvIOn(gv);
3915 if (!io || !IoDIRP(io))
3918 #ifdef VOID_CLOSEDIR
3919 PerlDir_close(IoDIRP(io));
3921 if (PerlDir_close(IoDIRP(io)) < 0) {
3922 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3931 SETERRNO(EBADF,RMS$_IFI);
3934 DIE(aTHX_ PL_no_dir_func, "closedir");
3938 /* Process control. */
3948 PERL_FLUSHALL_FOR_CHILD;
3949 childpid = PerlProc_fork();
3954 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3955 SvREADONLY_off(GvSV(tmpgv));
3956 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3957 SvREADONLY_on(GvSV(tmpgv));
3959 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3964 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3969 PERL_FLUSHALL_FOR_CHILD;
3970 childpid = PerlProc_fork();
3976 DIE(aTHX_ PL_no_func, "fork");
3983 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3988 #ifdef PERL_OLD_SIGNALS
3989 childpid = wait4pid(-1, &argflags, 0);
3991 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
3995 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3996 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3997 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3999 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4004 DIE(aTHX_ PL_no_func, "wait");
4010 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4018 #ifdef PERL_OLD_SIGNALS
4019 childpid = wait4pid(childpid, &argflags, optype);
4021 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
4025 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4026 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4027 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4029 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4034 DIE(aTHX_ PL_no_func, "waitpid");
4040 dSP; dMARK; dORIGMARK; dTARGET;
4048 while (++MARK <= SP) {
4049 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4054 /* XXX Remove warning at end of deprecation cycle --RD 2002-02 */
4055 if (SP - MARK == 1) {
4056 TAINT_PROPER("system");
4058 else if (ckWARN2(WARN_TAINT, WARN_DEPRECATED)) {
4059 Perl_warner(aTHX_ packWARN2(WARN_TAINT, WARN_DEPRECATED),
4060 "Use of tainted arguments in %s is deprecated", "system");
4063 PERL_FLUSHALL_FOR_CHILD;
4064 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4069 if (PerlProc_pipe(pp) >= 0)
4071 while ((childpid = PerlProc_fork()) == -1) {
4072 if (errno != EAGAIN) {
4077 PerlLIO_close(pp[0]);
4078 PerlLIO_close(pp[1]);
4085 Sigsave_t ihand,qhand; /* place to save signals during system() */
4089 PerlLIO_close(pp[1]);
4091 rsignal_save(SIGINT, SIG_IGN, &ihand);
4092 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4095 result = wait4pid(childpid, &status, 0);
4096 } while (result == -1 && errno == EINTR);
4098 (void)rsignal_restore(SIGINT, &ihand);
4099 (void)rsignal_restore(SIGQUIT, &qhand);
4101 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4102 do_execfree(); /* free any memory child malloced on fork */
4108 while (n < sizeof(int)) {
4109 n1 = PerlLIO_read(pp[0],
4110 (void*)(((char*)&errkid)+n),
4116 PerlLIO_close(pp[0]);
4117 if (n) { /* Error */
4118 if (n != sizeof(int))
4119 DIE(aTHX_ "panic: kid popen errno read");
4120 errno = errkid; /* Propagate errno from kid */
4121 STATUS_CURRENT = -1;
4124 PUSHi(STATUS_CURRENT);
4128 PerlLIO_close(pp[0]);
4129 #if defined(HAS_FCNTL) && defined(F_SETFD)
4130 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4133 if (PL_op->op_flags & OPf_STACKED) {
4134 SV *really = *++MARK;
4135 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4137 else if (SP - MARK != 1)
4138 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4140 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4144 #else /* ! FORK or VMS or OS/2 */
4147 if (PL_op->op_flags & OPf_STACKED) {
4148 SV *really = *++MARK;
4149 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4151 else if (SP - MARK != 1)
4152 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4154 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4156 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4158 STATUS_NATIVE_SET(value);
4161 PUSHi(result ? value : STATUS_CURRENT);
4162 #endif /* !FORK or VMS */
4168 dSP; dMARK; dORIGMARK; dTARGET;
4174 while (++MARK <= SP) {
4175 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4180 /* XXX Remove warning at end of deprecation cycle --RD 2002-02 */
4181 if (SP - MARK == 1) {
4182 TAINT_PROPER("exec");
4184 else if (ckWARN2(WARN_TAINT, WARN_DEPRECATED)) {
4185 Perl_warner(aTHX_ packWARN2(WARN_TAINT, WARN_DEPRECATED),
4186 "Use of tainted arguments in %s is deprecated", "exec");
4189 PERL_FLUSHALL_FOR_CHILD;
4190 if (PL_op->op_flags & OPf_STACKED) {
4191 SV *really = *++MARK;
4192 value = (I32)do_aexec(really, MARK, SP);
4194 else if (SP - MARK != 1)
4196 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4200 (void ) do_aspawn(Nullsv, MARK, SP);
4204 value = (I32)do_aexec(Nullsv, MARK, SP);
4209 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4212 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4215 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4228 dSP; dMARK; dTARGET;
4230 value = (I32)apply(PL_op->op_type, MARK, SP);
4235 DIE(aTHX_ PL_no_func, "kill");
4243 XPUSHi( getppid() );
4246 DIE(aTHX_ PL_no_func, "getppid");
4262 pgrp = (I32)BSD_GETPGRP(pid);
4264 if (pid != 0 && pid != PerlProc_getpid())
4265 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4271 DIE(aTHX_ PL_no_func, "getpgrp()");
4290 TAINT_PROPER("setpgrp");
4292 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4294 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4295 || (pid != 0 && pid != PerlProc_getpid()))
4297 DIE(aTHX_ "setpgrp can't take arguments");
4299 SETi( setpgrp() >= 0 );
4300 #endif /* USE_BSDPGRP */
4303 DIE(aTHX_ PL_no_func, "setpgrp()");
4309 #ifdef HAS_GETPRIORITY
4313 SETi( getpriority(which, who) );
4316 DIE(aTHX_ PL_no_func, "getpriority()");
4322 #ifdef HAS_SETPRIORITY
4327 TAINT_PROPER("setpriority");
4328 SETi( setpriority(which, who, niceval) >= 0 );
4331 DIE(aTHX_ PL_no_func, "setpriority()");
4341 XPUSHn( time(Null(Time_t*)) );
4343 XPUSHi( time(Null(Time_t*)) );
4348 /* XXX The POSIX name is CLK_TCK; it is to be preferred
4349 to HZ. Probably. For now, assume that if the system
4350 defines HZ, it does so correctly. (Will this break
4352 Probably we ought to use _sysconf(_SC_CLK_TCK), if
4353 it's supported. --AD 9/96.
4374 (void)PerlProc_times(&PL_timesbuf);
4376 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4377 /* struct tms, though same data */
4381 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/HZ)));
4382 if (GIMME == G_ARRAY) {
4383 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/HZ)));
4384 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/HZ)));
4385 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/HZ)));
4389 DIE(aTHX_ "times not implemented");
4390 #endif /* HAS_TIMES */
4403 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4404 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4405 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4411 when = (Time_t)SvNVx(POPs);
4413 when = (Time_t)SvIVx(POPs);
4416 if (PL_op->op_type == OP_LOCALTIME)
4417 tmbuf = localtime(&when);
4419 tmbuf = gmtime(&when);
4421 if (GIMME != G_ARRAY) {
4427 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4428 dayname[tmbuf->tm_wday],
4429 monname[tmbuf->tm_mon],
4434 tmbuf->tm_year + 1900);
4435 PUSHs(sv_2mortal(tsv));
4440 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4441 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4442 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4443 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4444 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4445 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4446 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4447 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4448 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4459 anum = alarm((unsigned int)anum);
4466 DIE(aTHX_ PL_no_func, "alarm");
4477 (void)time(&lasttime);
4482 PerlProc_sleep((unsigned int)duration);
4485 XPUSHi(when - lasttime);
4489 /* Shared memory. */
4503 return pp_shmwrite();
4508 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4509 dSP; dMARK; dTARGET;
4510 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4519 /* Message passing. */
4533 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4534 dSP; dMARK; dTARGET;
4535 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4546 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4547 dSP; dMARK; dTARGET;
4548 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4561 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4562 dSP; dMARK; dTARGET;
4563 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4570 DIE(aTHX_ "System V IPC is not implemented on this machine");
4576 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4577 dSP; dMARK; dTARGET;
4578 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4586 PUSHp(zero_but_true, ZBTLEN);
4596 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4597 dSP; dMARK; dTARGET;
4598 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4607 /* Get system info. */
4611 #ifdef HAS_GETHOSTBYNAME
4612 return pp_ghostent();
4614 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4620 #ifdef HAS_GETHOSTBYADDR
4621 return pp_ghostent();
4623 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4629 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4631 I32 which = PL_op->op_type;
4632 register char **elem;
4634 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4635 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4636 struct hostent *gethostbyname(Netdb_name_t);
4637 struct hostent *gethostent(void);
4639 struct hostent *hent;
4644 if (which == OP_GHBYNAME) {
4645 #ifdef HAS_GETHOSTBYNAME
4646 char* name = POPpbytex;
4647 hent = PerlSock_gethostbyname(name);
4649 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4652 else if (which == OP_GHBYADDR) {
4653 #ifdef HAS_GETHOSTBYADDR
4654 int addrtype = POPi;
4657 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4659 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4661 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4665 #ifdef HAS_GETHOSTENT
4666 hent = PerlSock_gethostent();
4668 DIE(aTHX_ PL_no_sock_func, "gethostent");
4671 #ifdef HOST_NOT_FOUND
4673 #ifdef USE_REENTRANT_API
4674 # ifdef USE_GETHOSTENT_ERRNO
4675 h_errno = PL_reentrant_buffer->_gethostent_errno;
4678 STATUS_NATIVE_SET(h_errno);
4682 if (GIMME != G_ARRAY) {
4683 PUSHs(sv = sv_newmortal());
4685 if (which == OP_GHBYNAME) {
4687 sv_setpvn(sv, hent->h_addr, hent->h_length);
4690 sv_setpv(sv, (char*)hent->h_name);
4696 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4697 sv_setpv(sv, (char*)hent->h_name);
4698 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4699 for (elem = hent->h_aliases; elem && *elem; elem++) {
4700 sv_catpv(sv, *elem);
4702 sv_catpvn(sv, " ", 1);
4704 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4705 sv_setiv(sv, (IV)hent->h_addrtype);
4706 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4707 len = hent->h_length;
4708 sv_setiv(sv, (IV)len);
4710 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4711 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4712 sv_setpvn(sv, *elem, len);
4715 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4717 sv_setpvn(sv, hent->h_addr, len);
4722 DIE(aTHX_ PL_no_sock_func, "gethostent");
4728 #ifdef HAS_GETNETBYNAME
4729 return pp_gnetent();
4731 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4737 #ifdef HAS_GETNETBYADDR
4738 return pp_gnetent();
4740 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4746 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4748 I32 which = PL_op->op_type;
4749 register char **elem;
4751 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4752 struct netent *getnetbyaddr(Netdb_net_t, int);
4753 struct netent *getnetbyname(Netdb_name_t);
4754 struct netent *getnetent(void);
4756 struct netent *nent;
4759 if (which == OP_GNBYNAME){
4760 #ifdef HAS_GETNETBYNAME
4761 char *name = POPpbytex;
4762 nent = PerlSock_getnetbyname(name);
4764 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4767 else if (which == OP_GNBYADDR) {
4768 #ifdef HAS_GETNETBYADDR
4769 int addrtype = POPi;
4770 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4771 nent = PerlSock_getnetbyaddr(addr, addrtype);
4773 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4777 #ifdef HAS_GETNETENT
4778 nent = PerlSock_getnetent();
4780 DIE(aTHX_ PL_no_sock_func, "getnetent");
4783 #ifdef HOST_NOT_FOUND
4785 #ifdef USE_REENTRANT_API
4786 # ifdef USE_GETNETENT_ERRNO
4787 h_errno = PL_reentrant_buffer->_getnetent_errno;
4790 STATUS_NATIVE_SET(h_errno);
4795 if (GIMME != G_ARRAY) {
4796 PUSHs(sv = sv_newmortal());
4798 if (which == OP_GNBYNAME)
4799 sv_setiv(sv, (IV)nent->n_net);
4801 sv_setpv(sv, nent->n_name);
4807 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4808 sv_setpv(sv, nent->n_name);
4809 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4810 for (elem = nent->n_aliases; elem && *elem; elem++) {
4811 sv_catpv(sv, *elem);
4813 sv_catpvn(sv, " ", 1);
4815 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4816 sv_setiv(sv, (IV)nent->n_addrtype);
4817 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4818 sv_setiv(sv, (IV)nent->n_net);
4823 DIE(aTHX_ PL_no_sock_func, "getnetent");
4829 #ifdef HAS_GETPROTOBYNAME
4830 return pp_gprotoent();
4832 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4838 #ifdef HAS_GETPROTOBYNUMBER
4839 return pp_gprotoent();
4841 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4847 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4849 I32 which = PL_op->op_type;
4850 register char **elem;
4852 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4853 struct protoent *getprotobyname(Netdb_name_t);
4854 struct protoent *getprotobynumber(int);
4855 struct protoent *getprotoent(void);
4857 struct protoent *pent;
4860 if (which == OP_GPBYNAME) {
4861 #ifdef HAS_GETPROTOBYNAME
4862 char* name = POPpbytex;
4863 pent = PerlSock_getprotobyname(name);
4865 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4868 else if (which == OP_GPBYNUMBER) {
4869 #ifdef HAS_GETPROTOBYNUMBER
4871 pent = PerlSock_getprotobynumber(number);
4873 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4877 #ifdef HAS_GETPROTOENT
4878 pent = PerlSock_getprotoent();
4880 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4884 if (GIMME != G_ARRAY) {
4885 PUSHs(sv = sv_newmortal());
4887 if (which == OP_GPBYNAME)
4888 sv_setiv(sv, (IV)pent->p_proto);
4890 sv_setpv(sv, pent->p_name);
4896 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4897 sv_setpv(sv, pent->p_name);
4898 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4899 for (elem = pent->p_aliases; elem && *elem; elem++) {
4900 sv_catpv(sv, *elem);
4902 sv_catpvn(sv, " ", 1);
4904 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4905 sv_setiv(sv, (IV)pent->p_proto);
4910 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4916 #ifdef HAS_GETSERVBYNAME
4917 return pp_gservent();
4919 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4925 #ifdef HAS_GETSERVBYPORT
4926 return pp_gservent();
4928 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4934 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4936 I32 which = PL_op->op_type;
4937 register char **elem;
4939 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4940 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4941 struct servent *getservbyport(int, Netdb_name_t);
4942 struct servent *getservent(void);
4944 struct servent *sent;
4947 if (which == OP_GSBYNAME) {
4948 #ifdef HAS_GETSERVBYNAME
4949 char *proto = POPpbytex;
4950 char *name = POPpbytex;
4952 if (proto && !*proto)
4955 sent = PerlSock_getservbyname(name, proto);
4957 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4960 else if (which == OP_GSBYPORT) {
4961 #ifdef HAS_GETSERVBYPORT
4962 char *proto = POPpbytex;
4963 unsigned short port = (unsigned short)POPu;
4966 port = PerlSock_htons(port);
4968 sent = PerlSock_getservbyport(port, proto);
4970 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4974 #ifdef HAS_GETSERVENT
4975 sent = PerlSock_getservent();
4977 DIE(aTHX_ PL_no_sock_func, "getservent");
4981 if (GIMME != G_ARRAY) {
4982 PUSHs(sv = sv_newmortal());
4984 if (which == OP_GSBYNAME) {
4986 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4988 sv_setiv(sv, (IV)(sent->s_port));
4992 sv_setpv(sv, sent->s_name);
4998 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4999 sv_setpv(sv, sent->s_name);
5000 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5001 for (elem = sent->s_aliases; elem && *elem; elem++) {
5002 sv_catpv(sv, *elem);
5004 sv_catpvn(sv, " ", 1);
5006 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5008 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5010 sv_setiv(sv, (IV)(sent->s_port));
5012 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5013 sv_setpv(sv, sent->s_proto);
5018 DIE(aTHX_ PL_no_sock_func, "getservent");
5024 #ifdef HAS_SETHOSTENT
5026 PerlSock_sethostent(TOPi);
5029 DIE(aTHX_ PL_no_sock_func, "sethostent");
5035 #ifdef HAS_SETNETENT
5037 PerlSock_setnetent(TOPi);
5040 DIE(aTHX_ PL_no_sock_func, "setnetent");
5046 #ifdef HAS_SETPROTOENT
5048 PerlSock_setprotoent(TOPi);
5051 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5057 #ifdef HAS_SETSERVENT
5059 PerlSock_setservent(TOPi);
5062 DIE(aTHX_ PL_no_sock_func, "setservent");
5068 #ifdef HAS_ENDHOSTENT
5070 PerlSock_endhostent();
5074 DIE(aTHX_ PL_no_sock_func, "endhostent");
5080 #ifdef HAS_ENDNETENT
5082 PerlSock_endnetent();
5086 DIE(aTHX_ PL_no_sock_func, "endnetent");
5092 #ifdef HAS_ENDPROTOENT
5094 PerlSock_endprotoent();
5098 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5104 #ifdef HAS_ENDSERVENT
5106 PerlSock_endservent();
5110 DIE(aTHX_ PL_no_sock_func, "endservent");
5119 DIE(aTHX_ PL_no_func, "getpwnam");
5128 DIE(aTHX_ PL_no_func, "getpwuid");
5136 I32 which = PL_op->op_type;
5139 struct passwd *pwent = NULL;
5141 * We currently support only the SysV getsp* shadow password interface.
5142 * The interface is declared in <shadow.h> and often one needs to link
5143 * with -lsecurity or some such.
5144 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5147 * AIX getpwnam() is clever enough to return the encrypted password
5148 * only if the caller (euid?) is root.
5150 * There are at least two other shadow password APIs. Many platforms
5151 * seem to contain more than one interface for accessing the shadow
5152 * password databases, possibly for compatibility reasons.
5153 * The getsp*() is by far he simplest one, the other two interfaces
5154 * are much more complicated, but also very similar to each other.
5159 * struct pr_passwd *getprpw*();
5160 * The password is in
5161 * char getprpw*(...).ufld.fd_encrypt[]
5162 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5167 * struct es_passwd *getespw*();
5168 * The password is in
5169 * char *(getespw*(...).ufld.fd_encrypt)
5170 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5172 * Mention I_PROT here so that Configure probes for it.
5174 * In HP-UX for getprpw*() the manual page claims that one should include
5175 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5176 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5177 * and pp_sys.c already includes <shadow.h> if there is such.
5179 * Note that <sys/security.h> is already probed for, but currently
5180 * it is only included in special cases.
5182 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5183 * be preferred interface, even though also the getprpw*() interface
5184 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5185 * One also needs to call set_auth_parameters() in main() before
5186 * doing anything else, whether one is using getespw*() or getprpw*().
5188 * Note that accessing the shadow databases can be magnitudes
5189 * slower than accessing the standard databases.
5197 char* name = POPpbytex;
5198 pwent = getpwnam(name);
5204 pwent = getpwuid(uid);
5208 # ifdef HAS_GETPWENT
5211 DIE(aTHX_ PL_no_func, "getpwent");
5217 if (GIMME != G_ARRAY) {
5218 PUSHs(sv = sv_newmortal());
5220 if (which == OP_GPWNAM)
5221 # if Uid_t_sign <= 0
5222 sv_setiv(sv, (IV)pwent->pw_uid);
5224 sv_setuv(sv, (UV)pwent->pw_uid);
5227 sv_setpv(sv, pwent->pw_name);
5233 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5234 sv_setpv(sv, pwent->pw_name);
5236 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5238 /* If we have getspnam(), we try to dig up the shadow
5239 * password. If we are underprivileged, the shadow
5240 * interface will set the errno to EACCES or similar,
5241 * and return a null pointer. If this happens, we will
5242 * use the dummy password (usually "*" or "x") from the
5243 * standard password database.
5245 * In theory we could skip the shadow call completely
5246 * if euid != 0 but in practice we cannot know which
5247 * security measures are guarding the shadow databases
5248 * on a random platform.
5250 * Resist the urge to use additional shadow interfaces.
5251 * Divert the urge to writing an extension instead.
5254 # ifdef HAS_GETSPNAM
5256 struct spwd *spwent;
5257 int saverrno; /* Save and restore errno so that
5258 * underprivileged attempts seem
5259 * to have never made the unsccessful
5260 * attempt to retrieve the shadow password. */
5263 spwent = getspnam(pwent->pw_name);
5265 if (spwent && spwent->sp_pwdp)
5266 sv_setpv(sv, spwent->sp_pwdp);
5270 if (!SvPOK(sv)) /* Use the standard password, then. */
5271 sv_setpv(sv, pwent->pw_passwd);
5274 # ifndef INCOMPLETE_TAINTS
5275 /* passwd is tainted because user himself can diddle with it.
5276 * admittedly not much and in a very limited way, but nevertheless. */
5280 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5281 # if Uid_t_sign <= 0
5282 sv_setiv(sv, (IV)pwent->pw_uid);
5284 sv_setuv(sv, (UV)pwent->pw_uid);
5287 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5288 # if Uid_t_sign <= 0
5289 sv_setiv(sv, (IV)pwent->pw_gid);
5291 sv_setuv(sv, (UV)pwent->pw_gid);
5293 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5294 * because of the poor interface of the Perl getpw*(),
5295 * not because there's some standard/convention saying so.
5296 * A better interface would have been to return a hash,
5297 * but we are accursed by our history, alas. --jhi. */
5298 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5300 sv_setiv(sv, (IV)pwent->pw_change);
5303 sv_setiv(sv, (IV)pwent->pw_quota);
5306 sv_setpv(sv, pwent->pw_age);
5311 /* pw_class and pw_comment are mutually exclusive--.
5312 * see the above note for pw_change, pw_quota, and pw_age. */
5313 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5315 sv_setpv(sv, pwent->pw_class);
5318 sv_setpv(sv, pwent->pw_comment);
5322 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5324 sv_setpv(sv, pwent->pw_gecos);
5326 # ifndef INCOMPLETE_TAINTS
5327 /* pw_gecos is tainted because user himself can diddle with it. */
5331 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5332 sv_setpv(sv, pwent->pw_dir);
5334 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5335 sv_setpv(sv, pwent->pw_shell);
5336 # ifndef INCOMPLETE_TAINTS
5337 /* pw_shell is tainted because user himself can diddle with it. */
5342 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5343 sv_setiv(sv, (IV)pwent->pw_expire);
5348 DIE(aTHX_ PL_no_func, "getpwent");
5354 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5359 DIE(aTHX_ PL_no_func, "setpwent");
5365 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5370 DIE(aTHX_ PL_no_func, "endpwent");
5379 DIE(aTHX_ PL_no_func, "getgrnam");
5388 DIE(aTHX_ PL_no_func, "getgrgid");
5396 I32 which = PL_op->op_type;
5397 register char **elem;
5399 struct group *grent;
5402 if (which == OP_GGRNAM) {
5403 char* name = POPpbytex;
5404 grent = (struct group *)getgrnam(name);
5406 else if (which == OP_GGRGID) {
5408 grent = (struct group *)getgrgid(gid);
5412 grent = (struct group *)getgrent();
5414 DIE(aTHX_ PL_no_func, "getgrent");
5418 if (GIMME != G_ARRAY) {
5419 PUSHs(sv = sv_newmortal());
5421 if (which == OP_GGRNAM)
5422 sv_setiv(sv, (IV)grent->gr_gid);
5424 sv_setpv(sv, grent->gr_name);
5430 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5431 sv_setpv(sv, grent->gr_name);
5433 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5435 sv_setpv(sv, grent->gr_passwd);
5438 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5439 sv_setiv(sv, (IV)grent->gr_gid);
5441 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5442 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5443 /* In UNICOS/mk (_CRAYMPP) the multithreading
5444 * versions (getgrnam_r, getgrgid_r)
5445 * seem to return an illegal pointer
5446 * as the group members list, gr_mem.
5447 * getgrent() doesn't even have a _r version
5448 * but the gr_mem is poisonous anyway.
5449 * So yes, you cannot get the list of group
5450 * members if building multithreaded in UNICOS/mk. */
5451 for (elem = grent->gr_mem; elem && *elem; elem++) {
5452 sv_catpv(sv, *elem);
5454 sv_catpvn(sv, " ", 1);
5461 DIE(aTHX_ PL_no_func, "getgrent");
5467 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5472 DIE(aTHX_ PL_no_func, "setgrent");
5478 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5483 DIE(aTHX_ PL_no_func, "endgrent");
5493 if (!(tmps = PerlProc_getlogin()))
5495 PUSHp(tmps, strlen(tmps));
5498 DIE(aTHX_ PL_no_func, "getlogin");
5502 /* Miscellaneous. */
5507 dSP; dMARK; dORIGMARK; dTARGET;
5508 register I32 items = SP - MARK;
5509 unsigned long a[20];
5515 while (++MARK <= SP) {
5516 if (SvTAINTED(*MARK)) {
5522 TAINT_PROPER("syscall");
5525 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5526 * or where sizeof(long) != sizeof(char*). But such machines will
5527 * not likely have syscall implemented either, so who cares?
5529 while (++MARK <= SP) {
5530 if (SvNIOK(*MARK) || !i)
5531 a[i++] = SvIV(*MARK);
5532 else if (*MARK == &PL_sv_undef)
5535 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5541 DIE(aTHX_ "Too many args to syscall");
5543 DIE(aTHX_ "Too few args to syscall");
5545 retval = syscall(a[0]);
5548 retval = syscall(a[0],a[1]);
5551 retval = syscall(a[0],a[1],a[2]);
5554 retval = syscall(a[0],a[1],a[2],a[3]);
5557 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5560 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5563 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5566 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5570 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5573 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],
5588 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5589 a[10],a[11],a[12],a[13]);
5591 #endif /* atarist */
5597 DIE(aTHX_ PL_no_func, "syscall");
5601 #ifdef FCNTL_EMULATE_FLOCK
5603 /* XXX Emulate flock() with fcntl().
5604 What's really needed is a good file locking module.
5608 fcntl_emulate_flock(int fd, int operation)
5612 switch (operation & ~LOCK_NB) {
5614 flock.l_type = F_RDLCK;
5617 flock.l_type = F_WRLCK;
5620 flock.l_type = F_UNLCK;
5626 flock.l_whence = SEEK_SET;
5627 flock.l_start = flock.l_len = (Off_t)0;
5629 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5632 #endif /* FCNTL_EMULATE_FLOCK */
5634 #ifdef LOCKF_EMULATE_FLOCK
5636 /* XXX Emulate flock() with lockf(). This is just to increase
5637 portability of scripts. The calls are not completely
5638 interchangeable. What's really needed is a good file
5642 /* The lockf() constants might have been defined in <unistd.h>.
5643 Unfortunately, <unistd.h> causes troubles on some mixed
5644 (BSD/POSIX) systems, such as SunOS 4.1.3.
5646 Further, the lockf() constants aren't POSIX, so they might not be
5647 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5648 just stick in the SVID values and be done with it. Sigh.
5652 # define F_ULOCK 0 /* Unlock a previously locked region */
5655 # define F_LOCK 1 /* Lock a region for exclusive use */
5658 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5661 # define F_TEST 3 /* Test a region for other processes locks */
5665 lockf_emulate_flock(int fd, int operation)
5671 /* flock locks entire file so for lockf we need to do the same */
5673 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5674 if (pos > 0) /* is seekable and needs to be repositioned */
5675 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5676 pos = -1; /* seek failed, so don't seek back afterwards */
5679 switch (operation) {
5681 /* LOCK_SH - get a shared lock */
5683 /* LOCK_EX - get an exclusive lock */
5685 i = lockf (fd, F_LOCK, 0);
5688 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5689 case LOCK_SH|LOCK_NB:
5690 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5691 case LOCK_EX|LOCK_NB:
5692 i = lockf (fd, F_TLOCK, 0);
5694 if ((errno == EAGAIN) || (errno == EACCES))
5695 errno = EWOULDBLOCK;
5698 /* LOCK_UN - unlock (non-blocking is a no-op) */
5700 case LOCK_UN|LOCK_NB:
5701 i = lockf (fd, F_ULOCK, 0);
5704 /* Default - can't decipher operation */
5711 if (pos > 0) /* need to restore position of the handle */
5712 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5717 #endif /* LOCKF_EMULATE_FLOCK */