3 * Copyright (c) 1991-2002, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * But only a short way ahead its floor and the walls on either side were
12 * cloven by a great fissure, out of which the red glare came, now leaping
13 * up, now dying down into darkness; and all the while far below there was
14 * a rumour and a trouble as of great engines throbbing and labouring.
18 #define PERL_IN_PP_SYS_C
22 /* Shadow password support for solaris - pdo@cs.umd.edu
23 * Not just Solaris: at least HP-UX, IRIX, Linux.
24 * The API is from SysV.
26 * There are at least two more shadow interfaces,
27 * see the comments in pp_gpwent().
31 /* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
32 * and another MAXINT from "perl.h" <- <sys/param.h>. */
40 extern "C" int syscall(unsigned long,...);
45 # include <sys/wait.h>
49 # include <sys/resource.h>
58 # include <sys/select.h>
62 /* XXX Configure test needed.
63 h_errno might not be a simple 'int', especially for multi-threaded
64 applications, see "extern int errno in perl.h". Creating such
65 a test requires taking into account the differences between
66 compiling multithreaded and singlethreaded ($ccflags et al).
67 HOST_NOT_FOUND is typically defined in <netdb.h>.
69 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
78 struct passwd *getpwnam (char *);
79 struct passwd *getpwuid (Uid_t);
84 struct passwd *getpwent (void);
85 #elif defined (VMS) && defined (my_getpwent)
86 struct passwd *Perl_my_getpwent (void);
95 struct group *getgrnam (char *);
96 struct group *getgrgid (Gid_t);
100 struct group *getgrent (void);
106 # if defined(_MSC_VER) || defined(__MINGW32__)
107 # include <sys/utime.h>
114 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
117 # define my_chsize PerlLIO_chsize
122 #else /* no flock() */
124 /* fcntl.h might not have been included, even if it exists, because
125 the current Configure only sets I_FCNTL if it's needed to pick up
126 the *_OK constants. Make sure it has been included before testing
127 the fcntl() locking constants. */
128 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
132 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
133 # define FLOCK fcntl_emulate_flock
134 # define FCNTL_EMULATE_FLOCK
135 # else /* no flock() or fcntl(F_SETLK,...) */
137 # define FLOCK lockf_emulate_flock
138 # define LOCKF_EMULATE_FLOCK
140 # endif /* no flock() or fcntl(F_SETLK,...) */
143 static int FLOCK (int, int);
146 * These are the flock() constants. Since this sytems doesn't have
147 * flock(), the values of the constants are probably not available.
161 # endif /* emulating flock() */
163 #endif /* no flock() */
166 static char zero_but_true[ZBTLEN + 1] = "0 but true";
168 #if defined(I_SYS_ACCESS) && !defined(R_OK)
169 # include <sys/access.h>
172 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
173 # define FD_CLOEXEC 1 /* NeXT needs this */
178 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
179 #undef PERL_EFF_ACCESS_W_OK
180 #undef PERL_EFF_ACCESS_X_OK
182 /* F_OK unused: if stat() cannot find it... */
184 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
185 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
186 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
187 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
188 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
191 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
192 # ifdef I_SYS_SECURITY
193 # include <sys/security.h>
197 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
198 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
199 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
202 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
203 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
204 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
208 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
210 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
211 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
212 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
215 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
216 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
217 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
220 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
222 Uid_t ruid = getuid();
223 Uid_t euid = geteuid();
224 Gid_t rgid = getgid();
225 Gid_t egid = getegid();
229 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
230 Perl_croak(aTHX_ "switching effective uid is not implemented");
233 if (setreuid(euid, ruid))
236 if (setresuid(euid, ruid, (Uid_t)-1))
239 Perl_croak(aTHX_ "entering effective uid failed");
242 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
243 Perl_croak(aTHX_ "switching effective gid is not implemented");
246 if (setregid(egid, rgid))
249 if (setresgid(egid, rgid, (Gid_t)-1))
252 Perl_croak(aTHX_ "entering effective gid failed");
255 res = access(path, mode);
258 if (setreuid(ruid, euid))
261 if (setresuid(ruid, euid, (Uid_t)-1))
264 Perl_croak(aTHX_ "leaving effective uid failed");
267 if (setregid(rgid, egid))
270 if (setresgid(rgid, egid, (Gid_t)-1))
273 Perl_croak(aTHX_ "leaving effective gid failed");
278 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
279 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
280 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
283 #if !defined(PERL_EFF_ACCESS_R_OK)
284 /* With it or without it: anyway you get a warning: either that
285 it is unused, or it is declared static and never defined.
288 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
290 Perl_croak(aTHX_ "switching effective uid is not implemented");
306 if (PL_op->op_private & OPpOPEN_IN_RAW)
308 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
310 fp = PerlProc_popen(tmps, mode);
313 if (PL_curcop->cop_io) {
314 type = SvPV_nolen(PL_curcop->cop_io);
317 PerlIO_apply_layers(aTHX_ fp,mode,type);
319 if (gimme == G_VOID) {
321 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
325 else if (gimme == G_SCALAR) {
327 PL_rs = &PL_sv_undef;
328 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
329 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
341 if (sv_gets(sv, fp, 0) == Nullch) {
345 XPUSHs(sv_2mortal(sv));
346 if (SvLEN(sv) - SvCUR(sv) > 20) {
347 SvLEN_set(sv, SvCUR(sv)+1);
348 Renew(SvPVX(sv), SvLEN(sv), char);
353 STATUS_NATIVE_SET(PerlProc_pclose(fp));
354 TAINT; /* "I believe that this is not gratuitous!" */
357 STATUS_NATIVE_SET(-1);
358 if (gimme == G_SCALAR)
368 tryAMAGICunTARGET(iter, -1);
370 /* Note that we only ever get here if File::Glob fails to load
371 * without at the same time croaking, for some reason, or if
372 * perl was built with PERL_EXTERNAL_GLOB */
379 * The external globbing program may use things we can't control,
380 * so for security reasons we must assume the worst.
383 taint_proper(PL_no_security, "glob");
387 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
388 PL_last_in_gv = (GV*)*PL_stack_sp--;
390 SAVESPTR(PL_rs); /* This is not permanent, either. */
391 PL_rs = sv_2mortal(newSVpvn("\000", 1));
394 *SvPVX(PL_rs) = '\n';
398 result = do_readline();
405 PL_last_in_gv = cGVOP_gv;
406 return do_readline();
415 if (SP - MARK != 1) {
417 do_join(TARG, &PL_sv_no, MARK, SP);
424 tmps = SvPV(tmpsv, len);
427 (void)SvUPGRADE(error, SVt_PV);
428 if (SvPOK(error) && SvCUR(error))
429 sv_catpv(error, "\t...caught");
431 tmps = SvPV(tmpsv, len);
434 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
436 Perl_warn(aTHX_ "%"SVf, tmpsv);
448 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
450 if (SP - MARK != 1) {
452 do_join(TARG, &PL_sv_no, MARK, SP);
454 tmps = SvPV(tmpsv, len);
460 tmps = (SvROK(tmpsv) && PL_in_eval) ? Nullch : SvPV(tmpsv, len);
464 (void)SvUPGRADE(error, SVt_PV);
465 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
467 SvSetSV(error,tmpsv);
468 else if (sv_isobject(error)) {
469 HV *stash = SvSTASH(SvRV(error));
470 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
472 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
473 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
480 call_sv((SV*)GvCV(gv),
481 G_SCALAR|G_EVAL|G_KEEPERR);
482 sv_setsv(error,*PL_stack_sp--);
485 DIE(aTHX_ Nullformat);
488 if (SvPOK(error) && SvCUR(error))
489 sv_catpv(error, "\t...propagated");
491 tmps = SvPV(tmpsv, len);
495 tmpsv = sv_2mortal(newSVpvn("Died", 4));
497 DIE(aTHX_ "%"SVf, tmpsv);
517 DIE(aTHX_ PL_no_usym, "filehandle");
518 if ((io = GvIOp(gv)))
519 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
521 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
522 /* Method's args are same as ours ... */
523 /* ... except handle is replaced by the object */
524 *MARK-- = SvTIED_obj((SV*)io, mg);
528 call_method("OPEN", G_SCALAR);
541 tmps = SvPV(sv, len);
542 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
545 PUSHi( (I32)PL_forkprocess );
546 else if (PL_forkprocess == 0) /* we are a new child */
565 if (gv && (io = GvIO(gv))
566 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
569 XPUSHs(SvTIED_obj((SV*)io, mg));
572 call_method("CLOSE", G_SCALAR);
578 PUSHs(boolSV(do_close(gv, TRUE)));
598 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
599 DIE(aTHX_ PL_no_usym, "filehandle");
604 do_close(rgv, FALSE);
606 do_close(wgv, FALSE);
608 if (PerlProc_pipe(fd) < 0)
611 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
612 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
613 IoOFP(rstio) = IoIFP(rstio);
614 IoIFP(wstio) = IoOFP(wstio);
615 IoTYPE(rstio) = IoTYPE_RDONLY;
616 IoTYPE(wstio) = IoTYPE_WRONLY;
618 if (!IoIFP(rstio) || !IoOFP(wstio)) {
619 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
620 else PerlLIO_close(fd[0]);
621 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
622 else PerlLIO_close(fd[1]);
625 #if defined(HAS_FCNTL) && defined(F_SETFD)
626 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
627 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
634 DIE(aTHX_ PL_no_func, "pipe");
650 if (gv && (io = GvIO(gv))
651 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
654 XPUSHs(SvTIED_obj((SV*)io, mg));
657 call_method("FILENO", G_SCALAR);
663 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
664 /* Can't do this because people seem to do things like
665 defined(fileno($foo)) to check whether $foo is a valid fh.
666 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
667 report_evil_fh(gv, io, PL_op->op_type);
672 PUSHi(PerlIO_fileno(fp));
683 anum = PerlLIO_umask(0);
684 (void)PerlLIO_umask(anum);
687 anum = PerlLIO_umask(POPi);
688 TAINT_PROPER("umask");
691 /* Only DIE if trying to restrict permissions on `user' (self).
692 * Otherwise it's harmless and more useful to just return undef
693 * since 'group' and 'other' concepts probably don't exist here. */
694 if (MAXARG >= 1 && (POPi & 0700))
695 DIE(aTHX_ "umask not implemented");
696 XPUSHs(&PL_sv_undef);
718 if (gv && (io = GvIO(gv))
719 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
722 XPUSHs(SvTIED_obj((SV*)io, mg));
727 call_method("BINMODE", G_SCALAR);
734 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
735 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
736 report_evil_fh(gv, io, PL_op->op_type);
741 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
742 (discp) ? SvPV_nolen(discp) : Nullch)) {
760 I32 markoff = MARK - PL_stack_base;
762 int how = PERL_MAGIC_tied;
767 switch(SvTYPE(varsv)) {
769 methname = "TIEHASH";
770 HvEITER((HV *)varsv) = Null(HE *);
773 methname = "TIEARRAY";
776 #ifdef GV_UNIQUE_CHECK
777 if (GvUNIQUE((GV*)varsv)) {
778 Perl_croak(aTHX_ "Attempt to tie unique GV");
781 methname = "TIEHANDLE";
782 how = PERL_MAGIC_tiedscalar;
783 /* For tied filehandles, we apply tiedscalar magic to the IO
784 slot of the GP rather than the GV itself. AMS 20010812 */
786 GvIOp(varsv) = newIO();
787 varsv = (SV *)GvIOp(varsv);
790 methname = "TIESCALAR";
791 how = PERL_MAGIC_tiedscalar;
795 if (sv_isobject(*MARK)) {
797 PUSHSTACKi(PERLSI_MAGIC);
799 EXTEND(SP,(I32)items);
803 call_method(methname, G_SCALAR);
806 /* Not clear why we don't call call_method here too.
807 * perhaps to get different error message ?
809 stash = gv_stashsv(*MARK, FALSE);
810 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
811 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
812 methname, SvPV(*MARK,n_a));
815 PUSHSTACKi(PERLSI_MAGIC);
817 EXTEND(SP,(I32)items);
821 call_sv((SV*)GvCV(gv), G_SCALAR);
827 if (sv_isobject(sv)) {
828 sv_unmagic(varsv, how);
829 /* Croak if a self-tie on an aggregate is attempted. */
830 if (varsv == SvRV(sv) &&
831 (SvTYPE(varsv) == SVt_PVAV ||
832 SvTYPE(varsv) == SVt_PVHV))
834 "Self-ties of arrays and hashes are not supported");
835 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
838 SP = PL_stack_base + markoff;
848 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
849 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
851 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
854 if ((mg = SvTIED_mg(sv, how))) {
855 SV *obj = SvRV(mg->mg_obj);
859 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
860 isGV(gv) && (cv = GvCV(gv))) {
862 XPUSHs(SvTIED_obj((SV*)gv, mg));
863 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
866 call_sv((SV *)cv, G_VOID);
870 else if (ckWARN(WARN_UNTIE)) {
871 if (mg && SvREFCNT(obj) > 1)
872 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
873 "untie attempted while %"UVuf" inner references still exist",
874 (UV)SvREFCNT(obj) - 1 ) ;
877 sv_unmagic(sv, how) ;
887 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
888 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
890 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
893 if ((mg = SvTIED_mg(sv, how))) {
894 SV *osv = SvTIED_obj(sv, mg);
895 if (osv == mg->mg_obj)
896 osv = sv_mortalcopy(osv);
914 sv = sv_mortalcopy(&PL_sv_no);
915 sv_setpv(sv, "AnyDBM_File");
916 stash = gv_stashsv(sv, FALSE);
917 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
919 require_pv("AnyDBM_File.pm");
921 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
922 DIE(aTHX_ "No dbm on this machine");
932 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
934 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
937 call_sv((SV*)GvCV(gv), G_SCALAR);
940 if (!sv_isobject(TOPs)) {
945 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
948 call_sv((SV*)GvCV(gv), G_SCALAR);
952 if (sv_isobject(TOPs)) {
953 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
954 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
976 struct timeval timebuf;
977 struct timeval *tbuf = &timebuf;
981 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
986 # if BYTEORDER & 0xf0000
987 # define ORDERBYTE (0x88888888 - BYTEORDER)
989 # define ORDERBYTE (0x4444 - BYTEORDER)
995 for (i = 1; i <= 3; i++) {
1003 /* little endians can use vecs directly */
1004 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1011 masksize = NFDBITS / NBBY;
1013 masksize = sizeof(long); /* documented int, everyone seems to use long */
1015 Zero(&fd_sets[0], 4, char*);
1018 # if SELECT_MIN_BITS > 1
1019 /* If SELECT_MIN_BITS is greater than one we most probably will want
1020 * to align the sizes with SELECT_MIN_BITS/8 because for example
1021 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1022 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1023 * on (sets/tests/clears bits) is 32 bits. */
1024 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1026 growsize = sizeof(fd_set);
1034 timebuf.tv_sec = (long)value;
1035 value -= (NV)timebuf.tv_sec;
1036 timebuf.tv_usec = (long)(value * 1000000.0);
1039 tbuf = Null(struct timeval*);
1041 for (i = 1; i <= 3; i++) {
1047 else if (!SvPOK(sv))
1048 SvPV_force(sv,n_a); /* force string conversion */
1051 Sv_Grow(sv, growsize);
1055 while (++j <= growsize) {
1059 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1061 New(403, fd_sets[i], growsize, char);
1062 for (offset = 0; offset < growsize; offset += masksize) {
1063 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1064 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1067 fd_sets[i] = SvPVX(sv);
1071 nfound = PerlSock_select(
1073 (Select_fd_set_t) fd_sets[1],
1074 (Select_fd_set_t) fd_sets[2],
1075 (Select_fd_set_t) fd_sets[3],
1077 for (i = 1; i <= 3; i++) {
1080 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1082 for (offset = 0; offset < growsize; offset += masksize) {
1083 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1084 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1086 Safefree(fd_sets[i]);
1093 if (GIMME == G_ARRAY && tbuf) {
1094 value = (NV)(timebuf.tv_sec) +
1095 (NV)(timebuf.tv_usec) / 1000000.0;
1096 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1097 sv_setnv(sv, value);
1101 DIE(aTHX_ "select not implemented");
1106 Perl_setdefout(pTHX_ GV *gv)
1109 (void)SvREFCNT_inc(gv);
1111 SvREFCNT_dec(PL_defoutgv);
1118 GV *newdefout, *egv;
1121 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1123 egv = GvEGV(PL_defoutgv);
1128 XPUSHs(&PL_sv_undef);
1130 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1131 if (gvp && *gvp == egv) {
1132 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1136 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1141 if (!GvIO(newdefout))
1142 gv_IOadd(newdefout);
1143 setdefout(newdefout);
1161 if (gv && (io = GvIO(gv))
1162 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1164 I32 gimme = GIMME_V;
1166 XPUSHs(SvTIED_obj((SV*)io, mg));
1169 call_method("GETC", gimme);
1172 if (gimme == G_SCALAR)
1173 SvSetMagicSV_nosteal(TARG, TOPs);
1176 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1177 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1178 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1179 report_evil_fh(gv, io, PL_op->op_type);
1183 sv_setpv(TARG, " ");
1184 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1185 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1186 /* Find out how many bytes the char needs */
1187 Size_t len = UTF8SKIP(SvPVX(TARG));
1190 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1191 SvCUR_set(TARG,1+len);
1201 return pp_sysread();
1205 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1207 register PERL_CONTEXT *cx;
1208 I32 gimme = GIMME_V;
1209 AV* padlist = CvPADLIST(cv);
1210 SV** svp = AvARRAY(padlist);
1216 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1218 SAVEVPTR(PL_curpad);
1219 PL_curpad = AvARRAY((AV*)svp[1]);
1221 setdefout(gv); /* locally select filehandle so $% et al work */
1254 SV *tmpsv = sv_newmortal();
1255 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1256 name = SvPV_nolen(tmpsv);
1259 DIE(aTHX_ "Undefined format \"%s\" called", name);
1260 DIE(aTHX_ "Not a format reference");
1263 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1265 IoFLAGS(io) &= ~IOf_DIDTOP;
1266 return doform(cv,gv,PL_op->op_next);
1272 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1273 register IO *io = GvIOp(gv);
1274 PerlIO *ofp = IoOFP(io);
1278 register PERL_CONTEXT *cx;
1280 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1281 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1284 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1285 PL_formtarget != PL_toptarget)
1289 if (!IoTOP_GV(io)) {
1293 if (!IoTOP_NAME(io)) {
1294 if (!IoFMT_NAME(io))
1295 IoFMT_NAME(io) = savepv(GvNAME(gv));
1296 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1297 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1298 if ((topgv && GvFORM(topgv)) ||
1299 !gv_fetchpv("top",FALSE,SVt_PVFM))
1300 IoTOP_NAME(io) = savepv(SvPVX(topname));
1302 IoTOP_NAME(io) = savepv("top");
1304 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1305 if (!topgv || !GvFORM(topgv)) {
1306 IoLINES_LEFT(io) = 100000000;
1309 IoTOP_GV(io) = topgv;
1311 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1312 I32 lines = IoLINES_LEFT(io);
1313 char *s = SvPVX(PL_formtarget);
1314 if (lines <= 0) /* Yow, header didn't even fit!!! */
1316 while (lines-- > 0) {
1317 s = strchr(s, '\n');
1323 STRLEN save = SvCUR(PL_formtarget);
1324 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1325 do_print(PL_formtarget, ofp);
1326 SvCUR_set(PL_formtarget, save);
1327 sv_chop(PL_formtarget, s);
1328 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1331 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1332 do_print(PL_formfeed, ofp);
1333 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1335 PL_formtarget = PL_toptarget;
1336 IoFLAGS(io) |= IOf_DIDTOP;
1339 DIE(aTHX_ "bad top format reference");
1344 SV *sv = sv_newmortal();
1345 gv_efullname4(sv, fgv, Nullch, FALSE);
1346 name = SvPV_nolen(sv);
1349 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1352 DIE(aTHX_ "Undefined top format called");
1356 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1357 return doform(cv,gv,PL_op);
1361 POPBLOCK(cx,PL_curpm);
1367 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1369 /* integrate with report_evil_fh()? */
1372 SV* sv = sv_newmortal();
1373 gv_efullname4(sv, gv, Nullch, FALSE);
1374 name = SvPV_nolen(sv);
1377 Perl_warner(aTHX_ packWARN(WARN_IO),
1378 "Filehandle %s opened only for input", name);
1380 Perl_warner(aTHX_ packWARN(WARN_IO),
1381 "Filehandle opened only for input");
1383 else if (ckWARN(WARN_CLOSED))
1384 report_evil_fh(gv, io, PL_op->op_type);
1389 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1390 if (ckWARN(WARN_IO))
1391 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1393 if (!do_print(PL_formtarget, fp))
1396 FmLINES(PL_formtarget) = 0;
1397 SvCUR_set(PL_formtarget, 0);
1398 *SvEND(PL_formtarget) = '\0';
1399 if (IoFLAGS(io) & IOf_FLUSH)
1400 (void)PerlIO_flush(fp);
1405 PL_formtarget = PL_bodytarget;
1407 return pop_return();
1412 dSP; dMARK; dORIGMARK;
1419 if (PL_op->op_flags & OPf_STACKED)
1424 if (gv && (io = GvIO(gv))
1425 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1427 if (MARK == ORIGMARK) {
1430 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1434 *MARK = SvTIED_obj((SV*)io, mg);
1437 call_method("PRINTF", G_SCALAR);
1440 MARK = ORIGMARK + 1;
1447 if (!(io = GvIO(gv))) {
1448 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1449 report_evil_fh(gv, io, PL_op->op_type);
1450 SETERRNO(EBADF,RMS$_IFI);
1453 else if (!(fp = IoOFP(io))) {
1454 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1455 /* integrate with report_evil_fh()? */
1459 gv_efullname4(sv, gv, Nullch, FALSE);
1460 name = SvPV_nolen(sv);
1463 Perl_warner(aTHX_ packWARN(WARN_IO),
1464 "Filehandle %s opened only for input", name);
1466 Perl_warner(aTHX_ packWARN(WARN_IO),
1467 "Filehandle opened only for input");
1469 else if (ckWARN(WARN_CLOSED))
1470 report_evil_fh(gv, io, PL_op->op_type);
1472 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1476 do_sprintf(sv, SP - MARK, MARK + 1);
1477 if (!do_print(sv, fp))
1480 if (IoFLAGS(io) & IOf_FLUSH)
1481 if (PerlIO_flush(fp) == EOF)
1492 PUSHs(&PL_sv_undef);
1513 /* Need TIEHANDLE method ? */
1515 tmps = SvPV(sv, len);
1516 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1517 IoLINES(GvIOp(gv)) = 0;
1521 PUSHs(&PL_sv_undef);
1528 dSP; dMARK; dORIGMARK; dTARGET;
1535 Sock_size_t bufsize;
1542 bool charstart = FALSE;
1543 STRLEN charskip = 0;
1547 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1548 && gv && (io = GvIO(gv))
1549 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1554 *MARK = SvTIED_obj((SV*)io, mg);
1556 call_method("READ", G_SCALAR);
1569 sv_setpvn(bufsv, "", 0);
1570 length = SvIVx(*++MARK);
1573 offset = SvIVx(*++MARK);
1577 if (!io || !IoIFP(io))
1579 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1580 buffer = SvPVutf8_force(bufsv, blen);
1581 /* UTF8 may not have been set if they are all low bytes */
1585 buffer = SvPV_force(bufsv, blen);
1588 DIE(aTHX_ "Negative length");
1596 if (PL_op->op_type == OP_RECV) {
1597 char namebuf[MAXPATHLEN];
1598 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1599 bufsize = sizeof (struct sockaddr_in);
1601 bufsize = sizeof namebuf;
1603 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1607 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1608 /* 'offset' means 'flags' here */
1609 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1610 (struct sockaddr *)namebuf, &bufsize);
1614 /* Bogus return without padding */
1615 bufsize = sizeof (struct sockaddr_in);
1617 SvCUR_set(bufsv, count);
1618 *SvEND(bufsv) = '\0';
1619 (void)SvPOK_only(bufsv);
1623 /* This should not be marked tainted if the fp is marked clean */
1624 if (!(IoFLAGS(io) & IOf_UNTAINT))
1625 SvTAINTED_on(bufsv);
1627 sv_setpvn(TARG, namebuf, bufsize);
1632 if (PL_op->op_type == OP_RECV)
1633 DIE(aTHX_ PL_no_sock_func, "recv");
1635 if (DO_UTF8(bufsv)) {
1636 /* offset adjust in characters not bytes */
1637 blen = sv_len_utf8(bufsv);
1640 if (-offset > (int)blen)
1641 DIE(aTHX_ "Offset outside string");
1644 if (DO_UTF8(bufsv)) {
1645 /* convert offset-as-chars to offset-as-bytes */
1646 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1649 bufsize = SvCUR(bufsv);
1650 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1651 if (offset > bufsize) { /* Zero any newly allocated space */
1652 Zero(buffer+bufsize, offset-bufsize, char);
1654 buffer = buffer + offset;
1656 if (PL_op->op_type == OP_SYSREAD) {
1657 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1658 if (IoTYPE(io) == IoTYPE_SOCKET) {
1659 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1665 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1670 #ifdef HAS_SOCKET__bad_code_maybe
1671 if (IoTYPE(io) == IoTYPE_SOCKET) {
1672 char namebuf[MAXPATHLEN];
1673 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1674 bufsize = sizeof (struct sockaddr_in);
1676 bufsize = sizeof namebuf;
1678 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1679 (struct sockaddr *)namebuf, &bufsize);
1684 count = PerlIO_read(IoIFP(io), buffer, length);
1685 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1686 if (count == 0 && PerlIO_error(IoIFP(io)))
1690 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1692 /* integrate with report_evil_fh()? */
1695 SV* sv = sv_newmortal();
1696 gv_efullname4(sv, gv, Nullch, FALSE);
1697 name = SvPV_nolen(sv);
1700 Perl_warner(aTHX_ packWARN(WARN_IO),
1701 "Filehandle %s opened only for output", name);
1703 Perl_warner(aTHX_ packWARN(WARN_IO),
1704 "Filehandle opened only for output");
1708 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1709 *SvEND(bufsv) = '\0';
1710 (void)SvPOK_only(bufsv);
1711 if (fp_utf8 && !IN_BYTES) {
1712 /* Look at utf8 we got back and count the characters */
1713 char *bend = buffer + count;
1714 while (buffer < bend) {
1716 skip = UTF8SKIP(buffer);
1719 if (buffer - charskip + skip > bend) {
1720 /* partial character - try for rest of it */
1721 length = skip - (bend-buffer);
1722 offset = bend - SvPVX(bufsv);
1734 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1735 provided amount read (count) was what was requested (length)
1737 if (got < wanted && count == length) {
1738 length = wanted - got;
1739 offset = bend - SvPVX(bufsv);
1742 /* return value is character count */
1747 /* This should not be marked tainted if the fp is marked clean */
1748 if (!(IoFLAGS(io) & IOf_UNTAINT))
1749 SvTAINTED_on(bufsv);
1762 int items = (SP - PL_stack_base) - TOPMARK;
1766 sv = sv_2mortal(newSViv(sv_len(*SP)));
1775 dSP; dMARK; dORIGMARK; dTARGET;
1786 if (PL_op->op_type == OP_SYSWRITE
1787 && gv && (io = GvIO(gv))
1788 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1793 *MARK = SvTIED_obj((SV*)io, mg);
1795 call_method("WRITE", G_SCALAR);
1806 #if Size_t_size > IVSIZE
1807 length = (Size_t)SvNVx(*++MARK);
1809 length = (Size_t)SvIVx(*++MARK);
1811 if ((SSize_t)length < 0)
1812 DIE(aTHX_ "Negative length");
1815 if (!io || !IoIFP(io)) {
1817 if (ckWARN(WARN_CLOSED))
1818 report_evil_fh(gv, io, PL_op->op_type);
1822 if (PerlIO_isutf8(IoIFP(io))) {
1823 buffer = SvPVutf8(bufsv, blen);
1827 sv_utf8_downgrade(bufsv, FALSE);
1828 buffer = SvPV(bufsv, blen);
1831 if (PL_op->op_type == OP_SYSWRITE) {
1833 if (DO_UTF8(bufsv)) {
1834 /* length and offset are in chars */
1835 blen = sv_len_utf8(bufsv);
1838 offset = SvIVx(*++MARK);
1840 if (-offset > (IV)blen)
1841 DIE(aTHX_ "Offset outside string");
1843 } else if (offset >= (IV)blen && blen > 0)
1844 DIE(aTHX_ "Offset outside string");
1847 if (length > blen - offset)
1848 length = blen - offset;
1849 if (DO_UTF8(bufsv)) {
1850 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1851 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1854 buffer = buffer+offset;
1856 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1857 if (IoTYPE(io) == IoTYPE_SOCKET) {
1858 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1864 /* See the note at doio.c:do_print about filesize limits. --jhi */
1865 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1870 else if (SP > MARK) {
1873 sockbuf = SvPVx(*++MARK, mlen);
1874 /* length is really flags */
1875 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1876 length, (struct sockaddr *)sockbuf, mlen);
1879 /* length is really flags */
1880 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1883 DIE(aTHX_ PL_no_sock_func, "send");
1889 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1890 #if Size_t_size > IVSIZE
1904 return pp_sysread();
1915 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1917 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1919 if (io && !IoIFP(io)) {
1920 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1922 IoFLAGS(io) &= ~IOf_START;
1923 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1924 sv_setpvn(GvSV(gv), "-", 1);
1925 SvSETMAGIC(GvSV(gv));
1927 else if (!nextargv(gv))
1932 gv = PL_last_in_gv; /* eof */
1935 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1937 if (gv && (io = GvIO(gv))
1938 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1941 XPUSHs(SvTIED_obj((SV*)io, mg));
1944 call_method("EOF", G_SCALAR);
1950 PUSHs(boolSV(!gv || do_eof(gv)));
1964 gv = PL_last_in_gv = (GV*)POPs;
1966 if (gv && (io = GvIO(gv))
1967 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1970 XPUSHs(SvTIED_obj((SV*)io, mg));
1973 call_method("TELL", G_SCALAR);
1979 #if LSEEKSIZE > IVSIZE
1980 PUSHn( do_tell(gv) );
1982 PUSHi( do_tell(gv) );
1989 return pp_sysseek();
1998 #if LSEEKSIZE > IVSIZE
1999 Off_t offset = (Off_t)SvNVx(POPs);
2001 Off_t offset = (Off_t)SvIVx(POPs);
2005 gv = PL_last_in_gv = (GV*)POPs;
2007 if (gv && (io = GvIO(gv))
2008 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2011 XPUSHs(SvTIED_obj((SV*)io, mg));
2012 #if LSEEKSIZE > IVSIZE
2013 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2015 XPUSHs(sv_2mortal(newSViv(offset)));
2017 XPUSHs(sv_2mortal(newSViv(whence)));
2020 call_method("SEEK", G_SCALAR);
2026 if (PL_op->op_type == OP_SEEK)
2027 PUSHs(boolSV(do_seek(gv, offset, whence)));
2029 Off_t sought = do_sysseek(gv, offset, whence);
2031 PUSHs(&PL_sv_undef);
2034 #if LSEEKSIZE > IVSIZE
2039 : newSVpvn(zero_but_true, ZBTLEN);
2040 PUSHs(sv_2mortal(sv));
2049 /* There seems to be no consensus on the length type of truncate()
2050 * and ftruncate(), both off_t and size_t have supporters. In
2051 * general one would think that when using large files, off_t is
2052 * at least as wide as size_t, so using an off_t should be okay. */
2053 /* XXX Configure probe for the length type of *truncate() needed XXX */
2056 #if Off_t_size > IVSIZE
2061 /* Checking for length < 0 is problematic as the type might or
2062 * might not be signed: if it is not, clever compilers will moan. */
2063 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2065 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2071 if (PL_op->op_flags & OPf_SPECIAL) {
2072 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2075 TAINT_PROPER("truncate");
2076 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2079 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2081 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2083 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2092 if (SvTYPE(sv) == SVt_PVGV) {
2093 tmpgv = (GV*)sv; /* *main::FRED for example */
2096 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2097 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2101 name = SvPV(sv, n_a);
2102 TAINT_PROPER("truncate");
2104 if (truncate(name, len) < 0)
2110 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2113 if (my_chsize(tmpfd, len) < 0)
2115 PerlLIO_close(tmpfd);
2124 SETERRNO(EBADF,RMS$_IFI);
2128 DIE(aTHX_ "truncate not implemented");
2141 unsigned int func = POPu;
2142 int optype = PL_op->op_type;
2146 IO *io = gv ? GvIOn(gv) : 0;
2148 if (!io || !argsv || !IoIFP(io)) {
2149 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2150 report_evil_fh(gv, io, PL_op->op_type);
2151 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
2155 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2158 s = SvPV_force(argsv, len);
2159 need = IOCPARM_LEN(func);
2161 s = Sv_Grow(argsv, need + 1);
2162 SvCUR_set(argsv, need);
2165 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2168 retval = SvIV(argsv);
2169 s = INT2PTR(char*,retval); /* ouch */
2172 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2174 if (optype == OP_IOCTL)
2176 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2178 DIE(aTHX_ "ioctl is not implemented");
2182 DIE(aTHX_ "fcntl is not implemented");
2184 #if defined(OS2) && defined(__EMX__)
2185 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2187 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2191 if (s[SvCUR(argsv)] != 17)
2192 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2194 s[SvCUR(argsv)] = 0; /* put our null back */
2195 SvSETMAGIC(argsv); /* Assume it has changed */
2204 PUSHp(zero_but_true, ZBTLEN);
2225 if (gv && (io = GvIO(gv)))
2232 (void)PerlIO_flush(fp);
2233 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2236 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2237 report_evil_fh(gv, io, PL_op->op_type);
2239 SETERRNO(EBADF,RMS$_IFI);
2244 DIE(aTHX_ PL_no_func, "flock()");
2256 int protocol = POPi;
2262 io = gv ? GvIOn(gv) : NULL;
2265 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2266 report_evil_fh(gv, io, PL_op->op_type);
2268 do_close(gv, FALSE);
2269 SETERRNO(EBADF,LIB$_INVARG);
2274 do_close(gv, FALSE);
2276 TAINT_PROPER("socket");
2277 fd = PerlSock_socket(domain, type, protocol);
2280 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2281 IoOFP(io) = PerlIO_fdopen(fd, "w");
2282 IoTYPE(io) = IoTYPE_SOCKET;
2283 if (!IoIFP(io) || !IoOFP(io)) {
2284 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2285 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2286 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2289 #if defined(HAS_FCNTL) && defined(F_SETFD)
2290 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2294 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2299 DIE(aTHX_ PL_no_sock_func, "socket");
2305 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2311 int protocol = POPi;
2318 io1 = gv1 ? GvIOn(gv1) : NULL;
2319 io2 = gv2 ? GvIOn(gv2) : NULL;
2320 if (!gv1 || !gv2 || !io1 || !io2) {
2321 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2323 report_evil_fh(gv1, io1, PL_op->op_type);
2325 report_evil_fh(gv1, io2, PL_op->op_type);
2328 do_close(gv1, FALSE);
2330 do_close(gv2, FALSE);
2335 do_close(gv1, FALSE);
2337 do_close(gv2, FALSE);
2339 TAINT_PROPER("socketpair");
2340 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2342 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2343 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
2344 IoTYPE(io1) = IoTYPE_SOCKET;
2345 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2346 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
2347 IoTYPE(io2) = IoTYPE_SOCKET;
2348 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2349 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2350 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2351 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2352 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2353 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2354 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2357 #if defined(HAS_FCNTL) && defined(F_SETFD)
2358 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2359 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2364 DIE(aTHX_ PL_no_sock_func, "socketpair");
2372 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2373 extern void GETPRIVMODE();
2374 extern void GETUSERMODE();
2379 register IO *io = GvIOn(gv);
2383 int mpeprivmode = 0;
2386 if (!io || !IoIFP(io))
2389 addr = SvPV(addrsv, len);
2390 TAINT_PROPER("bind");
2391 #ifdef MPE /* Deal with MPE bind() peculiarities */
2392 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2393 /* The address *MUST* stupidly be zero. */
2394 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2395 /* PRIV mode is required to bind() to ports < 1024. */
2396 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2397 ((struct sockaddr_in *)addr)->sin_port > 0) {
2398 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2403 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2404 (struct sockaddr *)addr, len) >= 0)
2407 #ifdef MPE /* Switch back to USER mode */
2418 if (ckWARN(WARN_CLOSED))
2419 report_evil_fh(gv, io, PL_op->op_type);
2420 SETERRNO(EBADF,SS$_IVCHAN);
2423 DIE(aTHX_ PL_no_sock_func, "bind");
2434 register IO *io = GvIOn(gv);
2437 if (!io || !IoIFP(io))
2440 addr = SvPV(addrsv, len);
2441 TAINT_PROPER("connect");
2442 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2448 if (ckWARN(WARN_CLOSED))
2449 report_evil_fh(gv, io, PL_op->op_type);
2450 SETERRNO(EBADF,SS$_IVCHAN);
2453 DIE(aTHX_ PL_no_sock_func, "connect");
2463 register IO *io = gv ? GvIOn(gv) : NULL;
2465 if (!gv || !io || !IoIFP(io))
2468 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2474 if (ckWARN(WARN_CLOSED))
2475 report_evil_fh(gv, io, PL_op->op_type);
2476 SETERRNO(EBADF,SS$_IVCHAN);
2479 DIE(aTHX_ PL_no_sock_func, "listen");
2491 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2492 Sock_size_t len = sizeof saddr;
2505 if (!gstio || !IoIFP(gstio))
2509 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2513 do_close(ngv, FALSE);
2514 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2515 /* FIXME: we dup(fd) here so that refcounting of fd's does not inhibit
2516 fclose of IoOFP's FILE * - and hence leak memory.
2517 Special treatment of _this_ case of IoIFP != IoOFP seems wrong.
2519 IoOFP(nstio) = PerlIO_fdopen(fd2 = PerlLIO_dup(fd), "w");
2520 IoTYPE(nstio) = IoTYPE_SOCKET;
2521 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2522 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2523 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2524 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2527 #if defined(HAS_FCNTL) && defined(F_SETFD)
2528 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2529 fcntl(fd2, F_SETFD, fd2 > PL_maxsysfd); /* ensure close-on-exec */
2533 len = sizeof saddr; /* EPOC somehow truncates info */
2534 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2537 PUSHp((char *)&saddr, len);
2541 if (ckWARN(WARN_CLOSED))
2542 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2543 SETERRNO(EBADF,SS$_IVCHAN);
2549 DIE(aTHX_ PL_no_sock_func, "accept");
2559 register IO *io = GvIOn(gv);
2561 if (!io || !IoIFP(io))
2564 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2568 if (ckWARN(WARN_CLOSED))
2569 report_evil_fh(gv, io, PL_op->op_type);
2570 SETERRNO(EBADF,SS$_IVCHAN);
2573 DIE(aTHX_ PL_no_sock_func, "shutdown");
2580 return pp_ssockopt();
2582 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2590 int optype = PL_op->op_type;
2593 unsigned int optname;
2599 if (optype == OP_GSOCKOPT)
2600 sv = sv_2mortal(NEWSV(22, 257));
2603 optname = (unsigned int) POPi;
2604 lvl = (unsigned int) POPi;
2608 if (!io || !IoIFP(io))
2611 fd = PerlIO_fileno(IoIFP(io));
2615 (void)SvPOK_only(sv);
2619 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2634 aint = (int)SvIV(sv);
2638 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2647 if (ckWARN(WARN_CLOSED))
2648 report_evil_fh(gv, io, optype);
2649 SETERRNO(EBADF,SS$_IVCHAN);
2654 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2661 return pp_getpeername();
2663 DIE(aTHX_ PL_no_sock_func, "getsockname");
2671 int optype = PL_op->op_type;
2675 register IO *io = GvIOn(gv);
2678 if (!io || !IoIFP(io))
2681 sv = sv_2mortal(NEWSV(22, 257));
2682 (void)SvPOK_only(sv);
2686 fd = PerlIO_fileno(IoIFP(io));
2688 case OP_GETSOCKNAME:
2689 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2692 case OP_GETPEERNAME:
2693 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2695 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2697 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";
2698 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2699 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2700 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2701 sizeof(u_short) + sizeof(struct in_addr))) {
2708 #ifdef BOGUS_GETNAME_RETURN
2709 /* Interactive Unix, getpeername() and getsockname()
2710 does not return valid namelen */
2711 if (len == BOGUS_GETNAME_RETURN)
2712 len = sizeof(struct sockaddr);
2720 if (ckWARN(WARN_CLOSED))
2721 report_evil_fh(gv, io, optype);
2722 SETERRNO(EBADF,SS$_IVCHAN);
2727 DIE(aTHX_ PL_no_sock_func, "getpeername");
2746 if (PL_op->op_flags & OPf_REF) {
2748 if (PL_op->op_type == OP_LSTAT) {
2749 if (gv != PL_defgv) {
2750 if (ckWARN(WARN_IO))
2751 Perl_warner(aTHX_ packWARN(WARN_IO),
2752 "lstat() on filehandle %s", GvENAME(gv));
2753 } else if (PL_laststype != OP_LSTAT)
2754 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2758 if (gv != PL_defgv) {
2759 PL_laststype = OP_STAT;
2761 sv_setpv(PL_statname, "");
2762 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2763 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2765 if (PL_laststatval < 0) {
2766 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2767 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2773 if (SvTYPE(sv) == SVt_PVGV) {
2777 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2779 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2780 Perl_warner(aTHX_ packWARN(WARN_IO),
2781 "lstat() on filehandle %s", GvENAME(gv));
2784 sv_setpv(PL_statname, SvPV(sv,n_a));
2787 PL_laststype = PL_op->op_type;
2788 if (PL_op->op_type == OP_LSTAT)
2789 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2792 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2793 if (PL_laststatval < 0) {
2794 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2795 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2801 if (gimme != G_ARRAY) {
2802 if (gimme != G_VOID)
2803 XPUSHs(boolSV(max));
2809 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2810 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2811 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2812 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2813 #if Uid_t_size > IVSIZE
2814 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2816 # if Uid_t_sign <= 0
2817 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2819 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2822 #if Gid_t_size > IVSIZE
2823 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2825 # if Gid_t_sign <= 0
2826 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2828 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2831 #ifdef USE_STAT_RDEV
2832 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2834 PUSHs(sv_2mortal(newSVpvn("", 0)));
2836 #if Off_t_size > IVSIZE
2837 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2839 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2842 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2843 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2844 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2846 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2847 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2848 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2850 #ifdef USE_STAT_BLOCKS
2851 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2852 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2854 PUSHs(sv_2mortal(newSVpvn("", 0)));
2855 PUSHs(sv_2mortal(newSVpvn("", 0)));
2865 #if defined(HAS_ACCESS) && defined(R_OK)
2867 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2868 result = access(TOPpx, R_OK);
2883 if (cando(S_IRUSR, 0, &PL_statcache))
2892 #if defined(HAS_ACCESS) && defined(W_OK)
2894 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2895 result = access(TOPpx, W_OK);
2910 if (cando(S_IWUSR, 0, &PL_statcache))
2919 #if defined(HAS_ACCESS) && defined(X_OK)
2921 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2922 result = access(TOPpx, X_OK);
2937 if (cando(S_IXUSR, 0, &PL_statcache))
2946 #ifdef PERL_EFF_ACCESS_R_OK
2948 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2949 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2964 if (cando(S_IRUSR, 1, &PL_statcache))
2973 #ifdef PERL_EFF_ACCESS_W_OK
2975 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2976 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2991 if (cando(S_IWUSR, 1, &PL_statcache))
3000 #ifdef PERL_EFF_ACCESS_X_OK
3002 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
3003 result = PERL_EFF_ACCESS_X_OK(TOPpx);
3018 if (cando(S_IXUSR, 1, &PL_statcache))
3025 I32 result = my_stat();
3034 return pp_ftrowned();
3039 I32 result = my_stat();
3043 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3051 I32 result = my_stat();
3055 if (PL_statcache.st_size == 0)
3062 I32 result = my_stat();
3066 #if Off_t_size > IVSIZE
3067 PUSHn(PL_statcache.st_size);
3069 PUSHi(PL_statcache.st_size);
3076 I32 result = my_stat();
3080 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3086 I32 result = my_stat();
3090 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3096 I32 result = my_stat();
3100 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3106 I32 result = my_stat();
3110 if (S_ISSOCK(PL_statcache.st_mode))
3117 I32 result = my_stat();
3121 if (S_ISCHR(PL_statcache.st_mode))
3128 I32 result = my_stat();
3132 if (S_ISBLK(PL_statcache.st_mode))
3139 I32 result = my_stat();
3143 if (S_ISREG(PL_statcache.st_mode))
3150 I32 result = my_stat();
3154 if (S_ISDIR(PL_statcache.st_mode))
3161 I32 result = my_stat();
3165 if (S_ISFIFO(PL_statcache.st_mode))
3172 I32 result = my_lstat();
3176 if (S_ISLNK(PL_statcache.st_mode))
3185 I32 result = my_stat();
3189 if (PL_statcache.st_mode & S_ISUID)
3199 I32 result = my_stat();
3203 if (PL_statcache.st_mode & S_ISGID)
3213 I32 result = my_stat();
3217 if (PL_statcache.st_mode & S_ISVTX)
3228 char *tmps = Nullch;
3231 if (PL_op->op_flags & OPf_REF)
3233 else if (isGV(TOPs))
3235 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3236 gv = (GV*)SvRV(POPs);
3238 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3240 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3241 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3242 else if (tmps && isDIGIT(*tmps))
3246 if (PerlLIO_isatty(fd))
3251 #if defined(atarist) /* this will work with atariST. Configure will
3252 make guesses for other systems. */
3253 # define FILE_base(f) ((f)->_base)
3254 # define FILE_ptr(f) ((f)->_ptr)
3255 # define FILE_cnt(f) ((f)->_cnt)
3256 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3266 register STDCHAR *s;
3273 if (PL_op->op_flags & OPf_REF)
3275 else if (isGV(TOPs))
3277 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3278 gv = (GV*)SvRV(POPs);
3284 if (gv == PL_defgv) {
3286 io = GvIO(PL_statgv);
3289 goto really_filename;
3294 PL_laststatval = -1;
3295 sv_setpv(PL_statname, "");
3296 io = GvIO(PL_statgv);
3298 if (io && IoIFP(io)) {
3299 if (! PerlIO_has_base(IoIFP(io)))
3300 DIE(aTHX_ "-T and -B not implemented on filehandles");
3301 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3302 if (PL_laststatval < 0)
3304 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3305 if (PL_op->op_type == OP_FTTEXT)
3310 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3311 i = PerlIO_getc(IoIFP(io));
3313 (void)PerlIO_ungetc(IoIFP(io),i);
3315 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3317 len = PerlIO_get_bufsiz(IoIFP(io));
3318 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3319 /* sfio can have large buffers - limit to 512 */
3324 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3326 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3328 SETERRNO(EBADF,RMS$_IFI);
3336 PL_laststatval = -1;
3337 PL_laststype = OP_STAT;
3338 sv_setpv(PL_statname, SvPV(sv, n_a));
3339 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3340 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3341 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3344 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3345 if (PL_laststatval < 0) {
3346 (void)PerlIO_close(fp);
3349 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3350 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3351 (void)PerlIO_close(fp);
3353 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3354 RETPUSHNO; /* special case NFS directories */
3355 RETPUSHYES; /* null file is anything */
3360 /* now scan s to look for textiness */
3361 /* XXX ASCII dependent code */
3363 #if defined(DOSISH) || defined(USEMYBINMODE)
3364 /* ignore trailing ^Z on short files */
3365 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3369 for (i = 0; i < len; i++, s++) {
3370 if (!*s) { /* null never allowed in text */
3375 else if (!(isPRINT(*s) || isSPACE(*s)))
3378 else if (*s & 128) {
3380 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3383 /* utf8 characters don't count as odd */
3384 if (UTF8_IS_START(*s)) {
3385 int ulen = UTF8SKIP(s);
3386 if (ulen < len - i) {
3388 for (j = 1; j < ulen; j++) {
3389 if (!UTF8_IS_CONTINUATION(s[j]))
3392 --ulen; /* loop does extra increment */
3402 *s != '\n' && *s != '\r' && *s != '\b' &&
3403 *s != '\t' && *s != '\f' && *s != 27)
3408 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3433 if( !tmps || !*tmps ) {
3434 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3435 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3437 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3442 deprecate("chdir('') or chdir(undef) as chdir()");
3443 tmps = SvPV(*svp, n_a);
3447 TAINT_PROPER("chdir");
3452 TAINT_PROPER("chdir");
3453 PUSHi( PerlDir_chdir(tmps) >= 0 );
3455 /* Clear the DEFAULT element of ENV so we'll get the new value
3457 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3465 dSP; dMARK; dTARGET;
3466 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3472 DIE(aTHX_ PL_no_func, "chown");
3482 TAINT_PROPER("chroot");
3483 PUSHi( chroot(tmps) >= 0 );
3486 DIE(aTHX_ PL_no_func, "chroot");
3492 dSP; dMARK; dTARGET;
3494 value = (I32)apply(PL_op->op_type, MARK, SP);
3502 dSP; dMARK; dTARGET;
3504 value = (I32)apply(PL_op->op_type, MARK, SP);
3512 dSP; dMARK; dTARGET;
3514 value = (I32)apply(PL_op->op_type, MARK, SP);
3526 char *tmps2 = POPpx;
3527 char *tmps = SvPV(TOPs, n_a);
3528 TAINT_PROPER("rename");
3530 anum = PerlLIO_rename(tmps, tmps2);
3532 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3533 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3536 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3537 (void)UNLINK(tmps2);
3538 if (!(anum = link(tmps, tmps2)))
3539 anum = UNLINK(tmps);
3552 char *tmps2 = POPpx;
3553 char *tmps = SvPV(TOPs, n_a);
3554 TAINT_PROPER("link");
3555 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3558 DIE(aTHX_ PL_no_func, "link");
3567 char *tmps2 = POPpx;
3568 char *tmps = SvPV(TOPs, n_a);
3569 TAINT_PROPER("symlink");
3570 SETi( symlink(tmps, tmps2) >= 0 );
3573 DIE(aTHX_ PL_no_func, "symlink");
3583 char buf[MAXPATHLEN];
3587 #ifndef INCOMPLETE_TAINTS
3591 len = readlink(tmps, buf, sizeof(buf) - 1);
3599 RETSETUNDEF; /* just pretend it's a normal file */
3603 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3605 S_dooneliner(pTHX_ char *cmd, char *filename)
3607 char *save_filename = filename;
3613 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3614 strcpy(cmdline, cmd);
3615 strcat(cmdline, " ");
3616 for (s = cmdline + strlen(cmdline); *filename; ) {
3621 myfp = PerlProc_popen(cmdline, "r");
3625 SV *tmpsv = sv_newmortal();
3626 /* Need to save/restore 'PL_rs' ?? */
3627 s = sv_gets(tmpsv, myfp, 0);
3628 (void)PerlProc_pclose(myfp);
3632 #ifdef HAS_SYS_ERRLIST
3637 /* you don't see this */
3639 #ifdef HAS_SYS_ERRLIST
3647 if (instr(s, errmsg)) {
3654 #define EACCES EPERM
3656 if (instr(s, "cannot make"))
3657 SETERRNO(EEXIST,RMS$_FEX);
3658 else if (instr(s, "existing file"))
3659 SETERRNO(EEXIST,RMS$_FEX);
3660 else if (instr(s, "ile exists"))
3661 SETERRNO(EEXIST,RMS$_FEX);
3662 else if (instr(s, "non-exist"))
3663 SETERRNO(ENOENT,RMS$_FNF);
3664 else if (instr(s, "does not exist"))
3665 SETERRNO(ENOENT,RMS$_FNF);
3666 else if (instr(s, "not empty"))
3667 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3668 else if (instr(s, "cannot access"))
3669 SETERRNO(EACCES,RMS$_PRV);
3671 SETERRNO(EPERM,RMS$_PRV);
3674 else { /* some mkdirs return no failure indication */
3675 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3676 if (PL_op->op_type == OP_RMDIR)
3681 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3706 tmps = SvPV(TOPs, len);
3707 /* Different operating and file systems take differently to
3708 * trailing slashes. According to POSIX 1003.1 1996 Edition
3709 * any number of trailing slashes should be allowed.
3710 * Thusly we snip them away so that even non-conforming
3711 * systems are happy. */
3712 /* We should probably do this "filtering" for all
3713 * the functions that expect (potentially) directory names:
3714 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3715 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3716 if (len > 1 && tmps[len-1] == '/') {
3717 while (tmps[len] == '/' && len > 1)
3719 tmps = savepvn(tmps, len);
3723 TAINT_PROPER("mkdir");
3725 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3727 SETi( dooneliner("mkdir", tmps) );
3728 oldumask = PerlLIO_umask(0);
3729 PerlLIO_umask(oldumask);
3730 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3744 TAINT_PROPER("rmdir");
3746 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3748 XPUSHi( dooneliner("rmdir", tmps) );
3753 /* Directory calls. */
3757 #if defined(Direntry_t) && defined(HAS_READDIR)
3760 char *dirname = POPpx;
3762 register IO *io = GvIOn(gv);
3768 PerlDir_close(IoDIRP(io));
3769 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3775 SETERRNO(EBADF,RMS$_DIR);
3778 DIE(aTHX_ PL_no_dir_func, "opendir");
3784 #if defined(Direntry_t) && defined(HAS_READDIR)
3786 #if !defined(I_DIRENT) && !defined(VMS)
3787 Direntry_t *readdir (DIR *);
3789 register Direntry_t *dp;
3791 register IO *io = GvIOn(gv);
3794 if (!io || !IoDIRP(io))
3797 if (GIMME == G_ARRAY) {
3799 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3801 sv = newSVpvn(dp->d_name, dp->d_namlen);
3803 sv = newSVpv(dp->d_name, 0);
3805 #ifndef INCOMPLETE_TAINTS
3806 if (!(IoFLAGS(io) & IOf_UNTAINT))
3809 XPUSHs(sv_2mortal(sv));
3813 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3816 sv = newSVpvn(dp->d_name, dp->d_namlen);
3818 sv = newSVpv(dp->d_name, 0);
3820 #ifndef INCOMPLETE_TAINTS
3821 if (!(IoFLAGS(io) & IOf_UNTAINT))
3824 XPUSHs(sv_2mortal(sv));
3830 SETERRNO(EBADF,RMS$_ISI);
3831 if (GIMME == G_ARRAY)
3836 DIE(aTHX_ PL_no_dir_func, "readdir");
3842 #if defined(HAS_TELLDIR) || defined(telldir)
3844 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3845 /* XXX netbsd still seemed to.
3846 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3847 --JHI 1999-Feb-02 */
3848 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3849 long telldir (DIR *);
3852 register IO *io = GvIOn(gv);
3854 if (!io || !IoDIRP(io))
3857 PUSHi( PerlDir_tell(IoDIRP(io)) );
3861 SETERRNO(EBADF,RMS$_ISI);
3864 DIE(aTHX_ PL_no_dir_func, "telldir");
3870 #if defined(HAS_SEEKDIR) || defined(seekdir)
3874 register IO *io = GvIOn(gv);
3876 if (!io || !IoDIRP(io))
3879 (void)PerlDir_seek(IoDIRP(io), along);
3884 SETERRNO(EBADF,RMS$_ISI);
3887 DIE(aTHX_ PL_no_dir_func, "seekdir");
3893 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3896 register IO *io = GvIOn(gv);
3898 if (!io || !IoDIRP(io))
3901 (void)PerlDir_rewind(IoDIRP(io));
3905 SETERRNO(EBADF,RMS$_ISI);
3908 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3914 #if defined(Direntry_t) && defined(HAS_READDIR)
3917 register IO *io = GvIOn(gv);
3919 if (!io || !IoDIRP(io))
3922 #ifdef VOID_CLOSEDIR
3923 PerlDir_close(IoDIRP(io));
3925 if (PerlDir_close(IoDIRP(io)) < 0) {
3926 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3935 SETERRNO(EBADF,RMS$_IFI);
3938 DIE(aTHX_ PL_no_dir_func, "closedir");
3942 /* Process control. */
3952 PERL_FLUSHALL_FOR_CHILD;
3953 childpid = PerlProc_fork();
3958 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3959 SvREADONLY_off(GvSV(tmpgv));
3960 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3961 SvREADONLY_on(GvSV(tmpgv));
3963 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3968 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3973 PERL_FLUSHALL_FOR_CHILD;
3974 childpid = PerlProc_fork();
3980 DIE(aTHX_ PL_no_func, "fork");
3987 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3992 #ifdef PERL_OLD_SIGNALS
3993 childpid = wait4pid(-1, &argflags, 0);
3995 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
3999 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4000 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4001 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4003 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4008 DIE(aTHX_ PL_no_func, "wait");
4014 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4022 #ifdef PERL_OLD_SIGNALS
4023 childpid = wait4pid(childpid, &argflags, optype);
4025 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
4029 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4030 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4031 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4033 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4038 DIE(aTHX_ PL_no_func, "waitpid");
4044 dSP; dMARK; dORIGMARK; dTARGET;
4052 while (++MARK <= SP) {
4053 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4058 TAINT_PROPER("system");
4060 PERL_FLUSHALL_FOR_CHILD;
4061 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4066 if (PerlProc_pipe(pp) >= 0)
4068 while ((childpid = PerlProc_fork()) == -1) {
4069 if (errno != EAGAIN) {
4074 PerlLIO_close(pp[0]);
4075 PerlLIO_close(pp[1]);
4082 Sigsave_t ihand,qhand; /* place to save signals during system() */
4086 PerlLIO_close(pp[1]);
4088 rsignal_save(SIGINT, SIG_IGN, &ihand);
4089 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4092 result = wait4pid(childpid, &status, 0);
4093 } while (result == -1 && errno == EINTR);
4095 (void)rsignal_restore(SIGINT, &ihand);
4096 (void)rsignal_restore(SIGQUIT, &qhand);
4098 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4099 do_execfree(); /* free any memory child malloced on fork */
4105 while (n < sizeof(int)) {
4106 n1 = PerlLIO_read(pp[0],
4107 (void*)(((char*)&errkid)+n),
4113 PerlLIO_close(pp[0]);
4114 if (n) { /* Error */
4115 if (n != sizeof(int))
4116 DIE(aTHX_ "panic: kid popen errno read");
4117 errno = errkid; /* Propagate errno from kid */
4118 STATUS_CURRENT = -1;
4121 PUSHi(STATUS_CURRENT);
4125 PerlLIO_close(pp[0]);
4126 #if defined(HAS_FCNTL) && defined(F_SETFD)
4127 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4130 if (PL_op->op_flags & OPf_STACKED) {
4131 SV *really = *++MARK;
4132 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4134 else if (SP - MARK != 1)
4135 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4137 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4141 #else /* ! FORK or VMS or OS/2 */
4144 if (PL_op->op_flags & OPf_STACKED) {
4145 SV *really = *++MARK;
4147 value = (I32)do_aspawn(really, MARK, SP);
4149 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4152 else if (SP - MARK != 1) {
4154 value = (I32)do_aspawn(Nullsv, MARK, SP);
4156 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4160 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4162 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4164 STATUS_NATIVE_SET(value);
4167 PUSHi(result ? value : STATUS_CURRENT);
4168 #endif /* !FORK or VMS */
4174 dSP; dMARK; dORIGMARK; dTARGET;
4180 while (++MARK <= SP) {
4181 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4186 TAINT_PROPER("exec");
4188 PERL_FLUSHALL_FOR_CHILD;
4189 if (PL_op->op_flags & OPf_STACKED) {
4190 SV *really = *++MARK;
4191 value = (I32)do_aexec(really, MARK, SP);
4193 else if (SP - MARK != 1)
4195 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4199 (void ) do_aspawn(Nullsv, MARK, SP);
4203 value = (I32)do_aexec(Nullsv, MARK, SP);
4208 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4211 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4214 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4227 dSP; dMARK; dTARGET;
4229 value = (I32)apply(PL_op->op_type, MARK, SP);
4234 DIE(aTHX_ PL_no_func, "kill");
4242 XPUSHi( getppid() );
4245 DIE(aTHX_ PL_no_func, "getppid");
4261 pgrp = (I32)BSD_GETPGRP(pid);
4263 if (pid != 0 && pid != PerlProc_getpid())
4264 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4270 DIE(aTHX_ PL_no_func, "getpgrp()");
4289 TAINT_PROPER("setpgrp");
4291 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4293 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4294 || (pid != 0 && pid != PerlProc_getpid()))
4296 DIE(aTHX_ "setpgrp can't take arguments");
4298 SETi( setpgrp() >= 0 );
4299 #endif /* USE_BSDPGRP */
4302 DIE(aTHX_ PL_no_func, "setpgrp()");
4308 #ifdef HAS_GETPRIORITY
4312 SETi( getpriority(which, who) );
4315 DIE(aTHX_ PL_no_func, "getpriority()");
4321 #ifdef HAS_SETPRIORITY
4326 TAINT_PROPER("setpriority");
4327 SETi( setpriority(which, who, niceval) >= 0 );
4330 DIE(aTHX_ PL_no_func, "setpriority()");
4340 XPUSHn( time(Null(Time_t*)) );
4342 XPUSHi( time(Null(Time_t*)) );
4347 /* XXX The POSIX name is CLK_TCK; it is to be preferred
4348 to HZ. Probably. For now, assume that if the system
4349 defines HZ, it does so correctly. (Will this break
4351 Probably we ought to use _sysconf(_SC_CLK_TCK), if
4352 it's supported. --AD 9/96.
4373 (void)PerlProc_times(&PL_timesbuf);
4375 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4376 /* struct tms, though same data */
4380 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/HZ)));
4381 if (GIMME == G_ARRAY) {
4382 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/HZ)));
4383 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/HZ)));
4384 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/HZ)));
4388 DIE(aTHX_ "times not implemented");
4389 #endif /* HAS_TIMES */
4402 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4403 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4404 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4410 when = (Time_t)SvNVx(POPs);
4412 when = (Time_t)SvIVx(POPs);
4415 if (PL_op->op_type == OP_LOCALTIME)
4416 tmbuf = localtime(&when);
4418 tmbuf = gmtime(&when);
4420 if (GIMME != G_ARRAY) {
4426 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4427 dayname[tmbuf->tm_wday],
4428 monname[tmbuf->tm_mon],
4433 tmbuf->tm_year + 1900);
4434 PUSHs(sv_2mortal(tsv));
4439 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4440 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4441 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4442 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4443 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4444 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4445 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4446 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4447 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4458 anum = alarm((unsigned int)anum);
4465 DIE(aTHX_ PL_no_func, "alarm");
4476 (void)time(&lasttime);
4481 PerlProc_sleep((unsigned int)duration);
4484 XPUSHi(when - lasttime);
4488 /* Shared memory. */
4502 return pp_shmwrite();
4507 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4508 dSP; dMARK; dTARGET;
4509 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4518 /* Message passing. */
4532 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4533 dSP; dMARK; dTARGET;
4534 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4545 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4546 dSP; dMARK; dTARGET;
4547 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4560 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4561 dSP; dMARK; dTARGET;
4562 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4569 DIE(aTHX_ "System V IPC is not implemented on this machine");
4575 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4576 dSP; dMARK; dTARGET;
4577 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4585 PUSHp(zero_but_true, ZBTLEN);
4595 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4596 dSP; dMARK; dTARGET;
4597 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4606 /* Get system info. */
4610 #ifdef HAS_GETHOSTBYNAME
4611 return pp_ghostent();
4613 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4619 #ifdef HAS_GETHOSTBYADDR
4620 return pp_ghostent();
4622 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4628 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4630 I32 which = PL_op->op_type;
4631 register char **elem;
4633 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4634 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4635 struct hostent *gethostbyname(Netdb_name_t);
4636 struct hostent *gethostent(void);
4638 struct hostent *hent;
4643 if (which == OP_GHBYNAME) {
4644 #ifdef HAS_GETHOSTBYNAME
4645 char* name = POPpbytex;
4646 hent = PerlSock_gethostbyname(name);
4648 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4651 else if (which == OP_GHBYADDR) {
4652 #ifdef HAS_GETHOSTBYADDR
4653 int addrtype = POPi;
4656 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4658 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4660 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4664 #ifdef HAS_GETHOSTENT
4665 hent = PerlSock_gethostent();
4667 DIE(aTHX_ PL_no_sock_func, "gethostent");
4670 #ifdef HOST_NOT_FOUND
4672 #ifdef USE_REENTRANT_API
4673 # ifdef USE_GETHOSTENT_ERRNO
4674 h_errno = PL_reentrant_buffer->_gethostent_errno;
4677 STATUS_NATIVE_SET(h_errno);
4681 if (GIMME != G_ARRAY) {
4682 PUSHs(sv = sv_newmortal());
4684 if (which == OP_GHBYNAME) {
4686 sv_setpvn(sv, hent->h_addr, hent->h_length);
4689 sv_setpv(sv, (char*)hent->h_name);
4695 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4696 sv_setpv(sv, (char*)hent->h_name);
4697 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4698 for (elem = hent->h_aliases; elem && *elem; elem++) {
4699 sv_catpv(sv, *elem);
4701 sv_catpvn(sv, " ", 1);
4703 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4704 sv_setiv(sv, (IV)hent->h_addrtype);
4705 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4706 len = hent->h_length;
4707 sv_setiv(sv, (IV)len);
4709 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4710 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4711 sv_setpvn(sv, *elem, len);
4714 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4716 sv_setpvn(sv, hent->h_addr, len);
4721 DIE(aTHX_ PL_no_sock_func, "gethostent");
4727 #ifdef HAS_GETNETBYNAME
4728 return pp_gnetent();
4730 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4736 #ifdef HAS_GETNETBYADDR
4737 return pp_gnetent();
4739 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4745 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4747 I32 which = PL_op->op_type;
4748 register char **elem;
4750 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4751 struct netent *getnetbyaddr(Netdb_net_t, int);
4752 struct netent *getnetbyname(Netdb_name_t);
4753 struct netent *getnetent(void);
4755 struct netent *nent;
4758 if (which == OP_GNBYNAME){
4759 #ifdef HAS_GETNETBYNAME
4760 char *name = POPpbytex;
4761 nent = PerlSock_getnetbyname(name);
4763 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4766 else if (which == OP_GNBYADDR) {
4767 #ifdef HAS_GETNETBYADDR
4768 int addrtype = POPi;
4769 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4770 nent = PerlSock_getnetbyaddr(addr, addrtype);
4772 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4776 #ifdef HAS_GETNETENT
4777 nent = PerlSock_getnetent();
4779 DIE(aTHX_ PL_no_sock_func, "getnetent");
4782 #ifdef HOST_NOT_FOUND
4784 #ifdef USE_REENTRANT_API
4785 # ifdef USE_GETNETENT_ERRNO
4786 h_errno = PL_reentrant_buffer->_getnetent_errno;
4789 STATUS_NATIVE_SET(h_errno);
4794 if (GIMME != G_ARRAY) {
4795 PUSHs(sv = sv_newmortal());
4797 if (which == OP_GNBYNAME)
4798 sv_setiv(sv, (IV)nent->n_net);
4800 sv_setpv(sv, nent->n_name);
4806 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4807 sv_setpv(sv, nent->n_name);
4808 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4809 for (elem = nent->n_aliases; elem && *elem; elem++) {
4810 sv_catpv(sv, *elem);
4812 sv_catpvn(sv, " ", 1);
4814 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4815 sv_setiv(sv, (IV)nent->n_addrtype);
4816 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4817 sv_setiv(sv, (IV)nent->n_net);
4822 DIE(aTHX_ PL_no_sock_func, "getnetent");
4828 #ifdef HAS_GETPROTOBYNAME
4829 return pp_gprotoent();
4831 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4837 #ifdef HAS_GETPROTOBYNUMBER
4838 return pp_gprotoent();
4840 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4846 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4848 I32 which = PL_op->op_type;
4849 register char **elem;
4851 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4852 struct protoent *getprotobyname(Netdb_name_t);
4853 struct protoent *getprotobynumber(int);
4854 struct protoent *getprotoent(void);
4856 struct protoent *pent;
4859 if (which == OP_GPBYNAME) {
4860 #ifdef HAS_GETPROTOBYNAME
4861 char* name = POPpbytex;
4862 pent = PerlSock_getprotobyname(name);
4864 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4867 else if (which == OP_GPBYNUMBER) {
4868 #ifdef HAS_GETPROTOBYNUMBER
4870 pent = PerlSock_getprotobynumber(number);
4872 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4876 #ifdef HAS_GETPROTOENT
4877 pent = PerlSock_getprotoent();
4879 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4883 if (GIMME != G_ARRAY) {
4884 PUSHs(sv = sv_newmortal());
4886 if (which == OP_GPBYNAME)
4887 sv_setiv(sv, (IV)pent->p_proto);
4889 sv_setpv(sv, pent->p_name);
4895 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4896 sv_setpv(sv, pent->p_name);
4897 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4898 for (elem = pent->p_aliases; elem && *elem; elem++) {
4899 sv_catpv(sv, *elem);
4901 sv_catpvn(sv, " ", 1);
4903 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4904 sv_setiv(sv, (IV)pent->p_proto);
4909 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4915 #ifdef HAS_GETSERVBYNAME
4916 return pp_gservent();
4918 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4924 #ifdef HAS_GETSERVBYPORT
4925 return pp_gservent();
4927 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4933 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4935 I32 which = PL_op->op_type;
4936 register char **elem;
4938 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4939 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4940 struct servent *getservbyport(int, Netdb_name_t);
4941 struct servent *getservent(void);
4943 struct servent *sent;
4946 if (which == OP_GSBYNAME) {
4947 #ifdef HAS_GETSERVBYNAME
4948 char *proto = POPpbytex;
4949 char *name = POPpbytex;
4951 if (proto && !*proto)
4954 sent = PerlSock_getservbyname(name, proto);
4956 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4959 else if (which == OP_GSBYPORT) {
4960 #ifdef HAS_GETSERVBYPORT
4961 char *proto = POPpbytex;
4962 unsigned short port = (unsigned short)POPu;
4965 port = PerlSock_htons(port);
4967 sent = PerlSock_getservbyport(port, proto);
4969 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4973 #ifdef HAS_GETSERVENT
4974 sent = PerlSock_getservent();
4976 DIE(aTHX_ PL_no_sock_func, "getservent");
4980 if (GIMME != G_ARRAY) {
4981 PUSHs(sv = sv_newmortal());
4983 if (which == OP_GSBYNAME) {
4985 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4987 sv_setiv(sv, (IV)(sent->s_port));
4991 sv_setpv(sv, sent->s_name);
4997 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4998 sv_setpv(sv, sent->s_name);
4999 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5000 for (elem = sent->s_aliases; elem && *elem; elem++) {
5001 sv_catpv(sv, *elem);
5003 sv_catpvn(sv, " ", 1);
5005 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5007 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5009 sv_setiv(sv, (IV)(sent->s_port));
5011 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5012 sv_setpv(sv, sent->s_proto);
5017 DIE(aTHX_ PL_no_sock_func, "getservent");
5023 #ifdef HAS_SETHOSTENT
5025 PerlSock_sethostent(TOPi);
5028 DIE(aTHX_ PL_no_sock_func, "sethostent");
5034 #ifdef HAS_SETNETENT
5036 PerlSock_setnetent(TOPi);
5039 DIE(aTHX_ PL_no_sock_func, "setnetent");
5045 #ifdef HAS_SETPROTOENT
5047 PerlSock_setprotoent(TOPi);
5050 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5056 #ifdef HAS_SETSERVENT
5058 PerlSock_setservent(TOPi);
5061 DIE(aTHX_ PL_no_sock_func, "setservent");
5067 #ifdef HAS_ENDHOSTENT
5069 PerlSock_endhostent();
5073 DIE(aTHX_ PL_no_sock_func, "endhostent");
5079 #ifdef HAS_ENDNETENT
5081 PerlSock_endnetent();
5085 DIE(aTHX_ PL_no_sock_func, "endnetent");
5091 #ifdef HAS_ENDPROTOENT
5093 PerlSock_endprotoent();
5097 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5103 #ifdef HAS_ENDSERVENT
5105 PerlSock_endservent();
5109 DIE(aTHX_ PL_no_sock_func, "endservent");
5118 DIE(aTHX_ PL_no_func, "getpwnam");
5127 DIE(aTHX_ PL_no_func, "getpwuid");
5135 I32 which = PL_op->op_type;
5138 struct passwd *pwent = NULL;
5140 * We currently support only the SysV getsp* shadow password interface.
5141 * The interface is declared in <shadow.h> and often one needs to link
5142 * with -lsecurity or some such.
5143 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5146 * AIX getpwnam() is clever enough to return the encrypted password
5147 * only if the caller (euid?) is root.
5149 * There are at least two other shadow password APIs. Many platforms
5150 * seem to contain more than one interface for accessing the shadow
5151 * password databases, possibly for compatibility reasons.
5152 * The getsp*() is by far he simplest one, the other two interfaces
5153 * are much more complicated, but also very similar to each other.
5158 * struct pr_passwd *getprpw*();
5159 * The password is in
5160 * char getprpw*(...).ufld.fd_encrypt[]
5161 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5166 * struct es_passwd *getespw*();
5167 * The password is in
5168 * char *(getespw*(...).ufld.fd_encrypt)
5169 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5171 * Mention I_PROT here so that Configure probes for it.
5173 * In HP-UX for getprpw*() the manual page claims that one should include
5174 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5175 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5176 * and pp_sys.c already includes <shadow.h> if there is such.
5178 * Note that <sys/security.h> is already probed for, but currently
5179 * it is only included in special cases.
5181 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5182 * be preferred interface, even though also the getprpw*() interface
5183 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5184 * One also needs to call set_auth_parameters() in main() before
5185 * doing anything else, whether one is using getespw*() or getprpw*().
5187 * Note that accessing the shadow databases can be magnitudes
5188 * slower than accessing the standard databases.
5196 char* name = POPpbytex;
5197 pwent = getpwnam(name);
5203 pwent = getpwuid(uid);
5207 # ifdef HAS_GETPWENT
5209 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5210 if (pwent) pwent = getpwnam(pwent->pw_name);
5213 DIE(aTHX_ PL_no_func, "getpwent");
5219 if (GIMME != G_ARRAY) {
5220 PUSHs(sv = sv_newmortal());
5222 if (which == OP_GPWNAM)
5223 # if Uid_t_sign <= 0
5224 sv_setiv(sv, (IV)pwent->pw_uid);
5226 sv_setuv(sv, (UV)pwent->pw_uid);
5229 sv_setpv(sv, pwent->pw_name);
5235 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5236 sv_setpv(sv, pwent->pw_name);
5238 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5240 /* If we have getspnam(), we try to dig up the shadow
5241 * password. If we are underprivileged, the shadow
5242 * interface will set the errno to EACCES or similar,
5243 * and return a null pointer. If this happens, we will
5244 * use the dummy password (usually "*" or "x") from the
5245 * standard password database.
5247 * In theory we could skip the shadow call completely
5248 * if euid != 0 but in practice we cannot know which
5249 * security measures are guarding the shadow databases
5250 * on a random platform.
5252 * Resist the urge to use additional shadow interfaces.
5253 * Divert the urge to writing an extension instead.
5256 # ifdef HAS_GETSPNAM
5258 struct spwd *spwent;
5259 int saverrno; /* Save and restore errno so that
5260 * underprivileged attempts seem
5261 * to have never made the unsccessful
5262 * attempt to retrieve the shadow password. */
5265 spwent = getspnam(pwent->pw_name);
5267 if (spwent && spwent->sp_pwdp)
5268 sv_setpv(sv, spwent->sp_pwdp);
5272 if (!SvPOK(sv)) /* Use the standard password, then. */
5273 sv_setpv(sv, pwent->pw_passwd);
5276 # ifndef INCOMPLETE_TAINTS
5277 /* passwd is tainted because user himself can diddle with it.
5278 * admittedly not much and in a very limited way, but nevertheless. */
5282 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5283 # if Uid_t_sign <= 0
5284 sv_setiv(sv, (IV)pwent->pw_uid);
5286 sv_setuv(sv, (UV)pwent->pw_uid);
5289 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5290 # if Uid_t_sign <= 0
5291 sv_setiv(sv, (IV)pwent->pw_gid);
5293 sv_setuv(sv, (UV)pwent->pw_gid);
5295 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5296 * because of the poor interface of the Perl getpw*(),
5297 * not because there's some standard/convention saying so.
5298 * A better interface would have been to return a hash,
5299 * but we are accursed by our history, alas. --jhi. */
5300 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5302 sv_setiv(sv, (IV)pwent->pw_change);
5305 sv_setiv(sv, (IV)pwent->pw_quota);
5308 sv_setpv(sv, pwent->pw_age);
5313 /* pw_class and pw_comment are mutually exclusive--.
5314 * see the above note for pw_change, pw_quota, and pw_age. */
5315 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5317 sv_setpv(sv, pwent->pw_class);
5320 sv_setpv(sv, pwent->pw_comment);
5324 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5326 sv_setpv(sv, pwent->pw_gecos);
5328 # ifndef INCOMPLETE_TAINTS
5329 /* pw_gecos is tainted because user himself can diddle with it. */
5333 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5334 sv_setpv(sv, pwent->pw_dir);
5336 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5337 sv_setpv(sv, pwent->pw_shell);
5338 # ifndef INCOMPLETE_TAINTS
5339 /* pw_shell is tainted because user himself can diddle with it. */
5344 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5345 sv_setiv(sv, (IV)pwent->pw_expire);
5350 DIE(aTHX_ PL_no_func, "getpwent");
5356 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5361 DIE(aTHX_ PL_no_func, "setpwent");
5367 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5372 DIE(aTHX_ PL_no_func, "endpwent");
5381 DIE(aTHX_ PL_no_func, "getgrnam");
5390 DIE(aTHX_ PL_no_func, "getgrgid");
5398 I32 which = PL_op->op_type;
5399 register char **elem;
5401 struct group *grent;
5404 if (which == OP_GGRNAM) {
5405 char* name = POPpbytex;
5406 grent = (struct group *)getgrnam(name);
5408 else if (which == OP_GGRGID) {
5410 grent = (struct group *)getgrgid(gid);
5414 grent = (struct group *)getgrent();
5416 DIE(aTHX_ PL_no_func, "getgrent");
5420 if (GIMME != G_ARRAY) {
5421 PUSHs(sv = sv_newmortal());
5423 if (which == OP_GGRNAM)
5424 sv_setiv(sv, (IV)grent->gr_gid);
5426 sv_setpv(sv, grent->gr_name);
5432 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5433 sv_setpv(sv, grent->gr_name);
5435 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5437 sv_setpv(sv, grent->gr_passwd);
5440 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5441 sv_setiv(sv, (IV)grent->gr_gid);
5443 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5444 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5445 /* In UNICOS/mk (_CRAYMPP) the multithreading
5446 * versions (getgrnam_r, getgrgid_r)
5447 * seem to return an illegal pointer
5448 * as the group members list, gr_mem.
5449 * getgrent() doesn't even have a _r version
5450 * but the gr_mem is poisonous anyway.
5451 * So yes, you cannot get the list of group
5452 * members if building multithreaded in UNICOS/mk. */
5453 for (elem = grent->gr_mem; elem && *elem; elem++) {
5454 sv_catpv(sv, *elem);
5456 sv_catpvn(sv, " ", 1);
5463 DIE(aTHX_ PL_no_func, "getgrent");
5469 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5474 DIE(aTHX_ PL_no_func, "setgrent");
5480 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5485 DIE(aTHX_ PL_no_func, "endgrent");
5495 if (!(tmps = PerlProc_getlogin()))
5497 PUSHp(tmps, strlen(tmps));
5500 DIE(aTHX_ PL_no_func, "getlogin");
5504 /* Miscellaneous. */
5509 dSP; dMARK; dORIGMARK; dTARGET;
5510 register I32 items = SP - MARK;
5511 unsigned long a[20];
5517 while (++MARK <= SP) {
5518 if (SvTAINTED(*MARK)) {
5524 TAINT_PROPER("syscall");
5527 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5528 * or where sizeof(long) != sizeof(char*). But such machines will
5529 * not likely have syscall implemented either, so who cares?
5531 while (++MARK <= SP) {
5532 if (SvNIOK(*MARK) || !i)
5533 a[i++] = SvIV(*MARK);
5534 else if (*MARK == &PL_sv_undef)
5537 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5543 DIE(aTHX_ "Too many args to syscall");
5545 DIE(aTHX_ "Too few args to syscall");
5547 retval = syscall(a[0]);
5550 retval = syscall(a[0],a[1]);
5553 retval = syscall(a[0],a[1],a[2]);
5556 retval = syscall(a[0],a[1],a[2],a[3]);
5559 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5562 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5565 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5568 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5572 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5575 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],
5590 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5591 a[10],a[11],a[12],a[13]);
5593 #endif /* atarist */
5599 DIE(aTHX_ PL_no_func, "syscall");
5603 #ifdef FCNTL_EMULATE_FLOCK
5605 /* XXX Emulate flock() with fcntl().
5606 What's really needed is a good file locking module.
5610 fcntl_emulate_flock(int fd, int operation)
5614 switch (operation & ~LOCK_NB) {
5616 flock.l_type = F_RDLCK;
5619 flock.l_type = F_WRLCK;
5622 flock.l_type = F_UNLCK;
5628 flock.l_whence = SEEK_SET;
5629 flock.l_start = flock.l_len = (Off_t)0;
5631 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5634 #endif /* FCNTL_EMULATE_FLOCK */
5636 #ifdef LOCKF_EMULATE_FLOCK
5638 /* XXX Emulate flock() with lockf(). This is just to increase
5639 portability of scripts. The calls are not completely
5640 interchangeable. What's really needed is a good file
5644 /* The lockf() constants might have been defined in <unistd.h>.
5645 Unfortunately, <unistd.h> causes troubles on some mixed
5646 (BSD/POSIX) systems, such as SunOS 4.1.3.
5648 Further, the lockf() constants aren't POSIX, so they might not be
5649 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5650 just stick in the SVID values and be done with it. Sigh.
5654 # define F_ULOCK 0 /* Unlock a previously locked region */
5657 # define F_LOCK 1 /* Lock a region for exclusive use */
5660 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5663 # define F_TEST 3 /* Test a region for other processes locks */
5667 lockf_emulate_flock(int fd, int operation)
5673 /* flock locks entire file so for lockf we need to do the same */
5675 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5676 if (pos > 0) /* is seekable and needs to be repositioned */
5677 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5678 pos = -1; /* seek failed, so don't seek back afterwards */
5681 switch (operation) {
5683 /* LOCK_SH - get a shared lock */
5685 /* LOCK_EX - get an exclusive lock */
5687 i = lockf (fd, F_LOCK, 0);
5690 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5691 case LOCK_SH|LOCK_NB:
5692 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5693 case LOCK_EX|LOCK_NB:
5694 i = lockf (fd, F_TLOCK, 0);
5696 if ((errno == EAGAIN) || (errno == EACCES))
5697 errno = EWOULDBLOCK;
5700 /* LOCK_UN - unlock (non-blocking is a no-op) */
5702 case LOCK_UN|LOCK_NB:
5703 i = lockf (fd, F_ULOCK, 0);
5706 /* Default - can't decipher operation */
5713 if (pos > 0) /* need to restore position of the handle */
5714 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5719 #endif /* LOCKF_EMULATE_FLOCK */