3 * Copyright (c) 1991-1997, 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.
20 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
27 extern "C" int syscall(unsigned long,...);
32 # include <sys/wait.h>
36 # include <sys/resource.h>
39 #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */
40 # include <sys/socket.h>
46 # include <net/errno.h>
53 #include <sys/select.h>
57 /* XXX Configure test needed.
58 h_errno might not be a simple 'int', especially for multi-threaded
59 applications, see "extern int errno in perl.h". Creating such
60 a test requires taking into account the differences between
61 compiling multithreaded and singlethreaded ($ccflags et al).
62 HOST_NOT_FOUND is typically defined in <netdb.h>.
64 #if defined(HOST_NOT_FOUND) && !defined(h_errno)
72 struct passwd *getpwnam _((char *));
73 struct passwd *getpwuid _((Uid_t));
76 struct passwd *getpwent _((void));
84 struct group *getgrnam _((char *));
85 struct group *getgrgid _((Gid_t));
88 struct group *getgrent _((void));
93 # if defined(_MSC_VER) || defined(__MINGW32__)
94 # include <sys/utime.h>
103 #include <sys/file.h>
106 /* Put this after #includes because fork and vfork prototypes may conflict. */
111 /* Put this after #includes because <unistd.h> defines _XOPEN_*. */
113 # if _XOPEN_VERSION >= 5 || defined(_XOPEN_SOURCE_EXTENDED) || defined(__GLIBC__)
114 # define Sock_size_t Size_t
116 # define Sock_size_t int
120 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
121 static int dooneliner _((char *cmd, char *filename));
125 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
128 # define my_chsize PerlLIO_chsize
133 #else /* no flock() */
135 /* fcntl.h might not have been included, even if it exists, because
136 the current Configure only sets I_FCNTL if it's needed to pick up
137 the *_OK constants. Make sure it has been included before testing
138 the fcntl() locking constants. */
139 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
143 # if defined(HAS_FCNTL) && defined(F_SETLK) && defined (F_SETLKW)
144 # define FLOCK fcntl_emulate_flock
145 # define FCNTL_EMULATE_FLOCK
146 # else /* no flock() or fcntl(F_SETLK,...) */
148 # define FLOCK lockf_emulate_flock
149 # define LOCKF_EMULATE_FLOCK
151 # endif /* no flock() or fcntl(F_SETLK,...) */
154 static int FLOCK _((int, int));
157 * These are the flock() constants. Since this sytems doesn't have
158 * flock(), the values of the constants are probably not available.
172 # endif /* emulating flock() */
174 #endif /* no flock() */
177 static char zero_but_true[ZBTLEN + 1] = "0 but true";
179 #if defined(I_SYS_ACCESS) && !defined(R_OK)
180 # include <sys/access.h>
183 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
184 #undef PERL_EFF_ACCESS_W_OK
185 #undef PERL_EFF_ACCESS_X_OK
187 /* F_OK unused: if stat() cannot find it... */
189 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
190 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
191 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
192 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
193 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
196 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
198 # if defined(I_SYS_SECURITY)
199 # include <sys/security.h>
201 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
202 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
203 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
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 emulate_eaccess (const char* path, int mode) {
219 Uid_t ruid = getuid();
220 Uid_t euid = geteuid();
221 Gid_t rgid = getgid();
222 Gid_t egid = getegid();
225 MUTEX_LOCK(&PL_cred_mutex);
226 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
227 croak("switching effective uid is not implemented");
230 if (setreuid(euid, ruid))
233 if (setresuid(euid, ruid, (Uid_t)-1))
236 croak("entering effective uid failed");
239 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
240 croak("switching effective gid is not implemented");
243 if (setregid(egid, rgid))
246 if (setresgid(egid, rgid, (Gid_t)-1))
249 croak("entering effective gid failed");
252 res = access(path, mode);
255 if (setreuid(ruid, euid))
258 if (setresuid(ruid, euid, (Uid_t)-1))
261 croak("leaving effective uid failed");
264 if (setregid(rgid, egid))
267 if (setresgid(rgid, egid, (Gid_t)-1))
270 croak("leaving effective gid failed");
271 MUTEX_UNLOCK(&PL_cred_mutex);
275 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
276 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
277 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
280 #if !defined(PERL_EFF_ACCESS_R_OK)
282 emulate_eaccess (const char* path, int mode) {
283 croak("switching effective uid is not implemented");
298 fp = PerlProc_popen(tmps, "r");
300 if (gimme == G_VOID) {
302 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
306 else if (gimme == G_SCALAR) {
307 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
308 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
319 if (sv_gets(sv, fp, 0) == Nullch) {
323 XPUSHs(sv_2mortal(sv));
324 if (SvLEN(sv) - SvCUR(sv) > 20) {
325 SvLEN_set(sv, SvCUR(sv)+1);
326 Renew(SvPVX(sv), SvLEN(sv), char);
331 STATUS_NATIVE_SET(PerlProc_pclose(fp));
332 TAINT; /* "I believe that this is not gratuitous!" */
335 STATUS_NATIVE_SET(-1);
336 if (gimme == G_SCALAR)
346 tryAMAGICunTARGET(iter, -1);
353 * The external globbing program may use things we can't control,
354 * so for security reasons we must assume the worst.
357 taint_proper(PL_no_security, "glob");
361 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
362 PL_last_in_gv = (GV*)*PL_stack_sp--;
364 SAVESPTR(PL_rs); /* This is not permanent, either. */
365 PL_rs = sv_2mortal(newSVpv("", 1));
368 *SvPVX(PL_rs) = '\n';
372 result = do_readline();
377 #if 0 /* XXX never used! */
381 PL_last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*PL_stack_sp--)), n_a), TRUE,SVt_PVIO);
382 return do_readline();
388 PL_last_in_gv = cGVOP->op_gv;
389 return do_readline();
397 if (SP - MARK != 1) {
399 do_join(TARG, &PL_sv_no, MARK, SP);
400 tmps = SvPV(TARG, n_a);
404 tmps = SvPV(TOPs, n_a);
406 if (!tmps || !*tmps) {
408 (void)SvUPGRADE(error, SVt_PV);
409 if (SvPOK(error) && SvCUR(error))
410 sv_catpv(error, "\t...caught");
411 tmps = SvPV(error, n_a);
414 tmps = "Warning: something's wrong";
426 if (SP - MARK != 1) {
428 do_join(TARG, &PL_sv_no, MARK, SP);
429 tmps = SvPV(TARG, n_a);
434 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, n_a);
436 if (!tmps || !*tmps) {
438 (void)SvUPGRADE(error, SVt_PV);
439 if(tmpsv ? SvROK(tmpsv) : SvROK(error)) {
441 SvSetSV(error,tmpsv);
442 else if(sv_isobject(error)) {
443 HV *stash = SvSTASH(SvRV(error));
444 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
446 SV *file = sv_2mortal(newSVsv(GvSV(PL_curcop->cop_filegv)));
447 SV *line = sv_2mortal(newSViv(PL_curcop->cop_line));
454 perl_call_sv((SV*)GvCV(gv),
455 G_SCALAR|G_EVAL|G_KEEPERR);
456 sv_setsv(error,*PL_stack_sp--);
462 if (SvPOK(error) && SvCUR(error))
463 sv_catpv(error, "\t...propagated");
464 tmps = SvPV(error, n_a);
485 DIE(PL_no_usym, "filehandle");
490 DIE(PL_no_usym, "filehandle");
492 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
493 tmps = SvPV(sv, len);
494 if (do_open(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp))
495 PUSHi( (I32)PL_forkprocess );
496 else if (PL_forkprocess == 0) /* we are a new child */
514 if (mg = SvTIED_mg((SV*)gv, 'q')) {
516 XPUSHs(SvTIED_obj((SV*)gv, mg));
519 perl_call_method("CLOSE", G_SCALAR);
525 PUSHs(boolSV(do_close(gv, TRUE)));
545 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
546 DIE(PL_no_usym, "filehandle");
551 do_close(rgv, FALSE);
553 do_close(wgv, FALSE);
555 if (PerlProc_pipe(fd) < 0)
558 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
559 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
560 IoIFP(wstio) = IoOFP(wstio);
564 if (!IoIFP(rstio) || !IoOFP(wstio)) {
565 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
566 else PerlLIO_close(fd[0]);
567 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
568 else PerlLIO_close(fd[1]);
571 #if defined(HAS_FCNTL) && defined(F_SETFD)
572 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
573 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
580 DIE(PL_no_func, "pipe");
593 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
595 PUSHi(PerlIO_fileno(fp));
606 anum = PerlLIO_umask(0);
607 (void)PerlLIO_umask(anum);
610 anum = PerlLIO_umask(POPi);
611 TAINT_PROPER("umask");
614 /* Only DIE if trying to restrict permissions on `user' (self).
615 * Otherwise it's harmless and more useful to just return undef
616 * since 'group' and 'other' concepts probably don't exist here. */
617 if (MAXARG >= 1 && (POPi & 0700))
618 DIE("umask not implemented");
619 XPUSHs(&PL_sv_undef);
637 if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
640 if (do_binmode(fp,IoTYPE(io),TRUE))
655 I32 markoff = MARK - PL_stack_base;
662 switch(SvTYPE(varsv)) {
664 methname = "TIEHASH";
667 methname = "TIEARRAY";
670 methname = "TIEHANDLE";
674 methname = "TIESCALAR";
679 if (sv_isobject(*MARK)) {
681 PUSHSTACKi(PERLSI_MAGIC);
687 perl_call_method(methname, G_SCALAR);
690 /* Not clear why we don't call perl_call_method here too.
691 * perhaps to get different error message ?
693 stash = gv_stashsv(*MARK, FALSE);
694 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
695 DIE("Can't locate object method \"%s\" via package \"%s\"",
696 methname, SvPV(*MARK,n_a));
699 PUSHSTACKi(PERLSI_MAGIC);
705 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
711 if (sv_isobject(sv)) {
712 sv_unmagic(varsv, how);
713 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
716 SP = PL_stack_base + markoff;
725 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
727 if (ckWARN(WARN_UNTIE)) {
729 if (mg = SvTIED_mg(sv, how)) {
730 if (mg && SvREFCNT(SvRV(mg->mg_obj)) > 1)
732 "untie attempted while %lu inner references still exist",
733 (unsigned long)SvREFCNT(SvRV(mg->mg_obj)) - 1 ) ;
745 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
748 if (mg = SvTIED_mg(sv, how)) {
749 SV *osv = SvTIED_obj(sv, mg);
750 if (osv == mg->mg_obj)
751 osv = sv_mortalcopy(osv);
769 sv = sv_mortalcopy(&PL_sv_no);
770 sv_setpv(sv, "AnyDBM_File");
771 stash = gv_stashsv(sv, FALSE);
772 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
774 perl_require_pv("AnyDBM_File.pm");
776 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
777 DIE("No dbm on this machine");
787 PUSHs(sv_2mortal(newSViv(O_RDWR|O_CREAT)));
789 PUSHs(sv_2mortal(newSViv(O_RDWR)));
792 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
795 if (!sv_isobject(TOPs)) {
800 PUSHs(sv_2mortal(newSViv(O_RDONLY)));
803 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
807 if (sv_isobject(TOPs)) {
808 sv_unmagic((SV *) hv, 'P');
809 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
817 return pp_untie(ARGS);
831 struct timeval timebuf;
832 struct timeval *tbuf = &timebuf;
836 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
841 # if BYTEORDER & 0xf0000
842 # define ORDERBYTE (0x88888888 - BYTEORDER)
844 # define ORDERBYTE (0x4444 - BYTEORDER)
850 for (i = 1; i <= 3; i++) {
858 /* little endians can use vecs directly */
859 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
860 # if SELECT_MIN_BITS > 1
861 /* If SELECT_MIN_BITS is greater than one we most probably will want
862 * to align the sizes with SELECT_MIN_BITS/8 because for example
863 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
864 * UNIX, Solaris, NeXT) the smallest quantum select() operates on
865 * (sets bit) is 32 bits. */
866 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
868 growsize = sizeof(fd_set);
877 masksize = NFDBITS / NBBY;
879 masksize = sizeof(long); /* documented int, everyone seems to use long */
881 growsize = maxlen + (masksize - (maxlen % masksize));
882 Zero(&fd_sets[0], 4, char*);
890 timebuf.tv_sec = (long)value;
891 value -= (double)timebuf.tv_sec;
892 timebuf.tv_usec = (long)(value * 1000000.0);
895 tbuf = Null(struct timeval*);
897 for (i = 1; i <= 3; i++) {
904 SvPV_force(sv,n_a); /* force string conversion */
907 Sv_Grow(sv, growsize);
911 while (++j <= growsize) {
915 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
917 New(403, fd_sets[i], growsize, char);
918 for (offset = 0; offset < growsize; offset += masksize) {
919 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
920 fd_sets[i][j+offset] = s[(k % masksize) + offset];
923 fd_sets[i] = SvPVX(sv);
927 nfound = PerlSock_select(
929 (Select_fd_set_t) fd_sets[1],
930 (Select_fd_set_t) fd_sets[2],
931 (Select_fd_set_t) fd_sets[3],
933 for (i = 1; i <= 3; i++) {
936 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
938 for (offset = 0; offset < growsize; offset += masksize) {
939 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
940 s[(k % masksize) + offset] = fd_sets[i][j+offset];
942 Safefree(fd_sets[i]);
949 if (GIMME == G_ARRAY && tbuf) {
950 value = (double)(timebuf.tv_sec) +
951 (double)(timebuf.tv_usec) / 1000000.0;
952 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
957 DIE("select not implemented");
966 (void)SvREFCNT_inc(gv);
968 SvREFCNT_dec(PL_defoutgv);
978 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
980 egv = GvEGV(PL_defoutgv);
985 XPUSHs(&PL_sv_undef);
987 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
988 if (gvp && *gvp == egv) {
989 gv_efullname3(TARG, PL_defoutgv, Nullch);
993 XPUSHs(sv_2mortal(newRV((SV*)egv)));
998 if (!GvIO(newdefout))
1000 setdefout(newdefout);
1019 if (mg = SvTIED_mg((SV*)gv, 'q')) {
1020 I32 gimme = GIMME_V;
1022 XPUSHs(SvTIED_obj((SV*)gv, mg));
1025 perl_call_method("GETC", gimme);
1028 if (gimme == G_SCALAR)
1029 SvSetMagicSV_nosteal(TARG, TOPs);
1032 if (!gv || do_eof(gv)) /* make sure we have fp with something */
1035 sv_setpv(TARG, " ");
1036 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1043 return pp_sysread(ARGS);
1047 doform(CV *cv, GV *gv, OP *retop)
1050 register PERL_CONTEXT *cx;
1051 I32 gimme = GIMME_V;
1052 AV* padlist = CvPADLIST(cv);
1053 SV** svp = AvARRAY(padlist);
1059 PUSHBLOCK(cx, CXt_SUB, PL_stack_sp);
1061 SAVESPTR(PL_curpad);
1062 PL_curpad = AvARRAY((AV*)svp[1]);
1064 setdefout(gv); /* locally select filehandle so $% et al work */
1096 SV *tmpsv = sv_newmortal();
1097 gv_efullname3(tmpsv, fgv, Nullch);
1098 DIE("Undefined format \"%s\" called",SvPVX(tmpsv));
1100 DIE("Not a format reference");
1103 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1105 IoFLAGS(io) &= ~IOf_DIDTOP;
1106 return doform(cv,gv,PL_op->op_next);
1112 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1113 register IO *io = GvIOp(gv);
1114 PerlIO *ofp = IoOFP(io);
1118 register PERL_CONTEXT *cx;
1120 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1121 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1122 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1123 PL_formtarget != PL_toptarget)
1127 if (!IoTOP_GV(io)) {
1131 if (!IoTOP_NAME(io)) {
1132 if (!IoFMT_NAME(io))
1133 IoFMT_NAME(io) = savepv(GvNAME(gv));
1134 topname = sv_2mortal(newSVpvf("%s_TOP", IoFMT_NAME(io)));
1135 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1136 if ((topgv && GvFORM(topgv)) ||
1137 !gv_fetchpv("top",FALSE,SVt_PVFM))
1138 IoTOP_NAME(io) = savepv(SvPVX(topname));
1140 IoTOP_NAME(io) = savepv("top");
1142 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1143 if (!topgv || !GvFORM(topgv)) {
1144 IoLINES_LEFT(io) = 100000000;
1147 IoTOP_GV(io) = topgv;
1149 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1150 I32 lines = IoLINES_LEFT(io);
1151 char *s = SvPVX(PL_formtarget);
1152 if (lines <= 0) /* Yow, header didn't even fit!!! */
1154 while (lines-- > 0) {
1155 s = strchr(s, '\n');
1161 PerlIO_write(ofp, SvPVX(PL_formtarget), s - SvPVX(PL_formtarget));
1162 sv_chop(PL_formtarget, s);
1163 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1166 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1167 PerlIO_write(ofp, SvPVX(PL_formfeed), SvCUR(PL_formfeed));
1168 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1170 PL_formtarget = PL_toptarget;
1171 IoFLAGS(io) |= IOf_DIDTOP;
1174 DIE("bad top format reference");
1177 SV *tmpsv = sv_newmortal();
1178 gv_efullname3(tmpsv, fgv, Nullch);
1179 DIE("Undefined top format \"%s\" called",SvPVX(tmpsv));
1182 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1183 return doform(cv,gv,PL_op);
1187 POPBLOCK(cx,PL_curpm);
1193 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1195 warner(WARN_IO, "Filehandle only opened for input");
1196 else if (ckWARN(WARN_CLOSED))
1197 warner(WARN_CLOSED, "Write on closed filehandle");
1202 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1203 if (ckWARN(WARN_IO))
1204 warner(WARN_IO, "page overflow");
1206 if (!PerlIO_write(ofp, SvPVX(PL_formtarget), SvCUR(PL_formtarget)) ||
1210 FmLINES(PL_formtarget) = 0;
1211 SvCUR_set(PL_formtarget, 0);
1212 *SvEND(PL_formtarget) = '\0';
1213 if (IoFLAGS(io) & IOf_FLUSH)
1214 (void)PerlIO_flush(fp);
1218 PL_formtarget = PL_bodytarget;
1220 return pop_return();
1225 djSP; dMARK; dORIGMARK;
1233 if (PL_op->op_flags & OPf_STACKED)
1238 if (mg = SvTIED_mg((SV*)gv, 'q')) {
1239 if (MARK == ORIGMARK) {
1242 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1246 *MARK = SvTIED_obj((SV*)gv, mg);
1249 perl_call_method("PRINTF", G_SCALAR);
1252 MARK = ORIGMARK + 1;
1259 if (!(io = GvIO(gv))) {
1260 if (ckWARN(WARN_UNOPENED)) {
1261 gv_fullname3(sv, gv, Nullch);
1262 warner(WARN_UNOPENED, "Filehandle %s never opened", SvPV(sv,n_a));
1264 SETERRNO(EBADF,RMS$_IFI);
1267 else if (!(fp = IoOFP(io))) {
1268 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1269 gv_fullname3(sv, gv, Nullch);
1271 warner(WARN_IO, "Filehandle %s opened only for input",
1273 else if (ckWARN(WARN_CLOSED))
1274 warner(WARN_CLOSED, "printf on closed filehandle %s",
1277 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1281 #ifdef USE_LOCALE_NUMERIC
1282 if (PL_op->op_private & OPpLOCALE)
1283 SET_NUMERIC_LOCAL();
1285 SET_NUMERIC_STANDARD();
1287 do_sprintf(sv, SP - MARK, MARK + 1);
1288 if (!do_print(sv, fp))
1291 if (IoFLAGS(io) & IOf_FLUSH)
1292 if (PerlIO_flush(fp) == EOF)
1303 PUSHs(&PL_sv_undef);
1324 tmps = SvPV(sv, len);
1325 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1326 IoLINES(GvIOp(gv)) = 0;
1330 PUSHs(&PL_sv_undef);
1337 djSP; dMARK; dORIGMARK; dTARGET;
1343 Sock_size_t bufsize;
1349 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
1350 (mg = SvTIED_mg((SV*)gv, 'q')))
1355 *MARK = SvTIED_obj((SV*)gv, mg);
1357 perl_call_method("READ", G_SCALAR);
1370 sv_setpvn(bufsv, "", 0);
1371 buffer = SvPV_force(bufsv, blen);
1372 length = SvIVx(*++MARK);
1374 DIE("Negative length");
1377 offset = SvIVx(*++MARK);
1381 if (!io || !IoIFP(io))
1384 if (PL_op->op_type == OP_RECV) {
1385 char namebuf[MAXPATHLEN];
1386 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
1387 bufsize = sizeof (struct sockaddr_in);
1389 bufsize = sizeof namebuf;
1391 buffer = SvGROW(bufsv, length+1);
1392 /* 'offset' means 'flags' here */
1393 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1394 (struct sockaddr *)namebuf, &bufsize);
1397 SvCUR_set(bufsv, length);
1398 *SvEND(bufsv) = '\0';
1399 (void)SvPOK_only(bufsv);
1401 /* This should not be marked tainted if the fp is marked clean */
1402 if (!(IoFLAGS(io) & IOf_UNTAINT))
1403 SvTAINTED_on(bufsv);
1405 sv_setpvn(TARG, namebuf, bufsize);
1410 if (PL_op->op_type == OP_RECV)
1411 DIE(PL_no_sock_func, "recv");
1415 DIE("Offset outside string");
1418 bufsize = SvCUR(bufsv);
1419 buffer = SvGROW(bufsv, length+offset+1);
1420 if (offset > bufsize) { /* Zero any newly allocated space */
1421 Zero(buffer+bufsize, offset-bufsize, char);
1423 if (PL_op->op_type == OP_SYSREAD) {
1424 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1425 if (IoTYPE(io) == 's') {
1426 length = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1427 buffer+offset, length, 0);
1432 length = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1433 buffer+offset, length);
1437 #ifdef HAS_SOCKET__bad_code_maybe
1438 if (IoTYPE(io) == 's') {
1439 char namebuf[MAXPATHLEN];
1440 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1441 bufsize = sizeof (struct sockaddr_in);
1443 bufsize = sizeof namebuf;
1445 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
1446 (struct sockaddr *)namebuf, &bufsize);
1451 length = PerlIO_read(IoIFP(io), buffer+offset, length);
1452 /* fread() returns 0 on both error and EOF */
1453 if (length == 0 && PerlIO_error(IoIFP(io)))
1458 SvCUR_set(bufsv, length+offset);
1459 *SvEND(bufsv) = '\0';
1460 (void)SvPOK_only(bufsv);
1462 /* This should not be marked tainted if the fp is marked clean */
1463 if (!(IoFLAGS(io) & IOf_UNTAINT))
1464 SvTAINTED_on(bufsv);
1477 int items = (SP - PL_stack_base) - TOPMARK;
1481 sv = sv_2mortal(newSViv(sv_len(*SP)));
1485 return pp_send(ARGS);
1490 djSP; dMARK; dORIGMARK; dTARGET;
1501 if (PL_op->op_type == OP_SYSWRITE && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1505 *MARK = SvTIED_obj((SV*)gv, mg);
1507 perl_call_method("WRITE", G_SCALAR);
1518 buffer = SvPV(bufsv, blen);
1519 length = SvIVx(*++MARK);
1521 DIE("Negative length");
1524 if (!io || !IoIFP(io)) {
1526 if (ckWARN(WARN_CLOSED)) {
1527 if (PL_op->op_type == OP_SYSWRITE)
1528 warner(WARN_CLOSED, "Syswrite on closed filehandle");
1530 warner(WARN_CLOSED, "Send on closed socket");
1533 else if (PL_op->op_type == OP_SYSWRITE) {
1535 offset = SvIVx(*++MARK);
1538 DIE("Offset outside string");
1540 } else if (offset >= blen && blen > 0)
1541 DIE("Offset outside string");
1544 if (length > blen - offset)
1545 length = blen - offset;
1546 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1547 if (IoTYPE(io) == 's') {
1548 length = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1549 buffer+offset, length, 0);
1554 length = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1555 buffer+offset, length);
1559 else if (SP > MARK) {
1562 sockbuf = SvPVx(*++MARK, mlen);
1563 length = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen, length,
1564 (struct sockaddr *)sockbuf, mlen);
1567 length = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1571 DIE(PL_no_sock_func, "send");
1586 return pp_sysread(ARGS);
1597 gv = PL_last_in_gv = (GV*)POPs;
1598 PUSHs(boolSV(!gv || do_eof(gv)));
1610 gv = PL_last_in_gv = (GV*)POPs;
1611 PUSHi( do_tell(gv) );
1617 return pp_sysseek(ARGS);
1625 Off_t offset = POPl;
1627 gv = PL_last_in_gv = (GV*)POPs;
1628 if (PL_op->op_type == OP_SEEK)
1629 PUSHs(boolSV(do_seek(gv, offset, whence)));
1631 Off_t n = do_sysseek(gv, offset, whence);
1632 PUSHs((n < 0) ? &PL_sv_undef
1633 : sv_2mortal(n ? newSViv((IV)n)
1634 : newSVpv(zero_but_true, ZBTLEN)));
1642 Off_t len = (Off_t)POPn;
1648 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
1649 if (PL_op->op_flags & OPf_SPECIAL) {
1650 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
1652 TAINT_PROPER("truncate");
1653 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1655 ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1657 my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1666 if (SvTYPE(sv) == SVt_PVGV) {
1667 tmpgv = (GV*)sv; /* *main::FRED for example */
1670 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1671 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
1675 name = SvPV(sv, n_a);
1676 TAINT_PROPER("truncate");
1678 if (truncate(name, len) < 0)
1683 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
1686 if (my_chsize(tmpfd, len) < 0)
1688 PerlLIO_close(tmpfd);
1697 SETERRNO(EBADF,RMS$_IFI);
1700 DIE("truncate not implemented");
1706 return pp_ioctl(ARGS);
1713 unsigned int func = U_I(POPn);
1714 int optype = PL_op->op_type;
1720 if (!io || !argsv || !IoIFP(io)) {
1721 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
1725 if (SvPOK(argsv) || !SvNIOK(argsv)) {
1728 s = SvPV_force(argsv, len);
1729 need = IOCPARM_LEN(func);
1731 s = Sv_Grow(argsv, need + 1);
1732 SvCUR_set(argsv, need);
1735 s[SvCUR(argsv)] = 17; /* a little sanity check here */
1738 retval = SvIV(argsv);
1739 s = (char*)retval; /* ouch */
1742 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1744 if (optype == OP_IOCTL)
1746 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
1748 DIE("ioctl is not implemented");
1752 #if defined(OS2) && defined(__EMX__)
1753 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
1755 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
1758 DIE("fcntl is not implemented");
1762 if (s[SvCUR(argsv)] != 17)
1763 DIE("Possible memory corruption: %s overflowed 3rd argument",
1764 PL_op_name[optype]);
1765 s[SvCUR(argsv)] = 0; /* put our null back */
1766 SvSETMAGIC(argsv); /* Assume it has changed */
1775 PUSHp(zero_but_true, ZBTLEN);
1795 fp = IoIFP(GvIOp(gv));
1799 (void)PerlIO_flush(fp);
1800 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
1807 DIE(PL_no_func, "flock()");
1819 int protocol = POPi;
1827 SETERRNO(EBADF,LIB$_INVARG);
1833 do_close(gv, FALSE);
1835 TAINT_PROPER("socket");
1836 fd = PerlSock_socket(domain, type, protocol);
1839 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
1840 IoOFP(io) = PerlIO_fdopen(fd, "w");
1842 if (!IoIFP(io) || !IoOFP(io)) {
1843 if (IoIFP(io)) PerlIO_close(IoIFP(io));
1844 if (IoOFP(io)) PerlIO_close(IoOFP(io));
1845 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
1851 DIE(PL_no_sock_func, "socket");
1858 #ifdef HAS_SOCKETPAIR
1863 int protocol = POPi;
1876 do_close(gv1, FALSE);
1878 do_close(gv2, FALSE);
1880 TAINT_PROPER("socketpair");
1881 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
1883 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
1884 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
1886 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
1887 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
1889 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
1890 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
1891 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
1892 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
1893 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
1894 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
1895 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
1901 DIE(PL_no_sock_func, "socketpair");
1909 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
1910 extern GETPRIVMODE();
1911 extern GETUSERMODE();
1916 register IO *io = GvIOn(gv);
1920 int mpeprivmode = 0;
1923 if (!io || !IoIFP(io))
1926 addr = SvPV(addrsv, len);
1927 TAINT_PROPER("bind");
1928 #ifdef MPE /* Deal with MPE bind() peculiarities */
1929 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
1930 /* The address *MUST* stupidly be zero. */
1931 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
1932 /* PRIV mode is required to bind() to ports < 1024. */
1933 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
1934 ((struct sockaddr_in *)addr)->sin_port > 0) {
1935 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
1940 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
1941 (struct sockaddr *)addr, len) >= 0)
1944 #ifdef MPE /* Switch back to USER mode */
1955 if (ckWARN(WARN_CLOSED))
1956 warner(WARN_CLOSED, "bind() on closed fd");
1957 SETERRNO(EBADF,SS$_IVCHAN);
1960 DIE(PL_no_sock_func, "bind");
1971 register IO *io = GvIOn(gv);
1974 if (!io || !IoIFP(io))
1977 addr = SvPV(addrsv, len);
1978 TAINT_PROPER("connect");
1979 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1985 if (ckWARN(WARN_CLOSED))
1986 warner(WARN_CLOSED, "connect() on closed fd");
1987 SETERRNO(EBADF,SS$_IVCHAN);
1990 DIE(PL_no_sock_func, "connect");
2000 register IO *io = GvIOn(gv);
2002 if (!io || !IoIFP(io))
2005 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2011 if (ckWARN(WARN_CLOSED))
2012 warner(WARN_CLOSED, "listen() on closed fd");
2013 SETERRNO(EBADF,SS$_IVCHAN);
2016 DIE(PL_no_sock_func, "listen");
2028 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2029 Sock_size_t len = sizeof saddr;
2041 if (!gstio || !IoIFP(gstio))
2046 do_close(ngv, FALSE);
2048 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2051 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2052 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
2053 IoTYPE(nstio) = 's';
2054 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2055 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2056 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2057 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2061 PUSHp((char *)&saddr, len);
2065 if (ckWARN(WARN_CLOSED))
2066 warner(WARN_CLOSED, "accept() on closed fd");
2067 SETERRNO(EBADF,SS$_IVCHAN);
2073 DIE(PL_no_sock_func, "accept");
2083 register IO *io = GvIOn(gv);
2085 if (!io || !IoIFP(io))
2088 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2092 if (ckWARN(WARN_CLOSED))
2093 warner(WARN_CLOSED, "shutdown() on closed fd");
2094 SETERRNO(EBADF,SS$_IVCHAN);
2097 DIE(PL_no_sock_func, "shutdown");
2104 return pp_ssockopt(ARGS);
2106 DIE(PL_no_sock_func, "getsockopt");
2114 int optype = PL_op->op_type;
2117 unsigned int optname;
2123 if (optype == OP_GSOCKOPT)
2124 sv = sv_2mortal(NEWSV(22, 257));
2127 optname = (unsigned int) POPi;
2128 lvl = (unsigned int) POPi;
2132 if (!io || !IoIFP(io))
2135 fd = PerlIO_fileno(IoIFP(io));
2139 (void)SvPOK_only(sv);
2143 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2158 aint = (int)SvIV(sv);
2162 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2171 if (ckWARN(WARN_CLOSED))
2172 warner(WARN_CLOSED, "[gs]etsockopt() on closed fd");
2173 SETERRNO(EBADF,SS$_IVCHAN);
2178 DIE(PL_no_sock_func, "setsockopt");
2185 return pp_getpeername(ARGS);
2187 DIE(PL_no_sock_func, "getsockname");
2195 int optype = PL_op->op_type;
2199 register IO *io = GvIOn(gv);
2202 if (!io || !IoIFP(io))
2205 sv = sv_2mortal(NEWSV(22, 257));
2206 (void)SvPOK_only(sv);
2210 fd = PerlIO_fileno(IoIFP(io));
2212 case OP_GETSOCKNAME:
2213 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2216 case OP_GETPEERNAME:
2217 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2219 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2221 static const char nowhere[] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2222 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2223 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2224 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2225 sizeof(u_short) + sizeof(struct in_addr))) {
2232 #ifdef BOGUS_GETNAME_RETURN
2233 /* Interactive Unix, getpeername() and getsockname()
2234 does not return valid namelen */
2235 if (len == BOGUS_GETNAME_RETURN)
2236 len = sizeof(struct sockaddr);
2244 if (ckWARN(WARN_CLOSED))
2245 warner(WARN_CLOSED, "get{sock, peer}name() on closed fd");
2246 SETERRNO(EBADF,SS$_IVCHAN);
2251 DIE(PL_no_sock_func, "getpeername");
2259 return pp_stat(ARGS);
2270 if (PL_op->op_flags & OPf_REF) {
2271 tmpgv = cGVOP->op_gv;
2273 if (tmpgv != PL_defgv) {
2274 PL_laststype = OP_STAT;
2276 sv_setpv(PL_statname, "");
2277 PL_laststatval = (GvIO(tmpgv) && IoIFP(GvIOp(tmpgv))
2278 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), &PL_statcache) : -1);
2280 if (PL_laststatval < 0)
2285 if (SvTYPE(sv) == SVt_PVGV) {
2289 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2290 tmpgv = (GV*)SvRV(sv);
2293 sv_setpv(PL_statname, SvPV(sv,n_a));
2296 PL_laststype = PL_op->op_type;
2297 if (PL_op->op_type == OP_LSTAT)
2298 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2301 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2302 if (PL_laststatval < 0) {
2303 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2304 warner(WARN_NEWLINE, PL_warn_nl, "stat");
2310 if (gimme != G_ARRAY) {
2311 if (gimme != G_VOID)
2312 XPUSHs(boolSV(max));
2318 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_dev)));
2319 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_ino)));
2320 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_mode)));
2321 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_nlink)));
2322 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_uid)));
2323 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_gid)));
2324 #ifdef USE_STAT_RDEV
2325 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_rdev)));
2327 PUSHs(sv_2mortal(newSVpv("", 0)));
2329 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_size)));
2331 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_atime)));
2332 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_mtime)));
2333 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_ctime)));
2335 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_atime)));
2336 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_mtime)));
2337 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_ctime)));
2339 #ifdef USE_STAT_BLOCKS
2340 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_blksize)));
2341 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_blocks)));
2343 PUSHs(sv_2mortal(newSVpv("", 0)));
2344 PUSHs(sv_2mortal(newSVpv("", 0)));
2354 #if defined(HAS_ACCESS) && defined(R_OK)
2356 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2357 result = access(TOPpx, R_OK);
2365 result = my_stat(ARGS);
2367 result = my_stat(ARGS);
2372 if (cando(S_IRUSR, 0, &PL_statcache))
2381 #if defined(HAS_ACCESS) && defined(W_OK)
2383 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2384 result = access(TOPpx, W_OK);
2392 result = my_stat(ARGS);
2394 result = my_stat(ARGS);
2399 if (cando(S_IWUSR, 0, &PL_statcache))
2408 #if defined(HAS_ACCESS) && defined(X_OK)
2410 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2411 result = access(TOPpx, X_OK);
2419 result = my_stat(ARGS);
2421 result = my_stat(ARGS);
2426 if (cando(S_IXUSR, 0, &PL_statcache))
2435 #ifdef PERL_EFF_ACCESS_R_OK
2437 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2438 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2446 result = my_stat(ARGS);
2448 result = my_stat(ARGS);
2453 if (cando(S_IRUSR, 1, &PL_statcache))
2462 #ifdef PERL_EFF_ACCESS_W_OK
2464 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2465 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2473 result = my_stat(ARGS);
2475 result = my_stat(ARGS);
2480 if (cando(S_IWUSR, 1, &PL_statcache))
2489 #ifdef PERL_EFF_ACCESS_X_OK
2491 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2492 result = PERL_EFF_ACCESS_X_OK(TOPpx);
2500 result = my_stat(ARGS);
2502 result = my_stat(ARGS);
2507 if (cando(S_IXUSR, 1, &PL_statcache))
2514 I32 result = my_stat(ARGS);
2523 return pp_ftrowned(ARGS);
2528 I32 result = my_stat(ARGS);
2532 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ? PL_euid : PL_uid) )
2539 I32 result = my_stat(ARGS);
2543 if (!PL_statcache.st_size)
2550 I32 result = my_stat(ARGS);
2554 PUSHi(PL_statcache.st_size);
2560 I32 result = my_stat(ARGS);
2564 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_mtime) / 86400.0 );
2570 I32 result = my_stat(ARGS);
2574 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_atime) / 86400.0 );
2580 I32 result = my_stat(ARGS);
2584 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_ctime) / 86400.0 );
2590 I32 result = my_stat(ARGS);
2594 if (S_ISSOCK(PL_statcache.st_mode))
2601 I32 result = my_stat(ARGS);
2605 if (S_ISCHR(PL_statcache.st_mode))
2612 I32 result = my_stat(ARGS);
2616 if (S_ISBLK(PL_statcache.st_mode))
2623 I32 result = my_stat(ARGS);
2627 if (S_ISREG(PL_statcache.st_mode))
2634 I32 result = my_stat(ARGS);
2638 if (S_ISDIR(PL_statcache.st_mode))
2645 I32 result = my_stat(ARGS);
2649 if (S_ISFIFO(PL_statcache.st_mode))
2656 I32 result = my_lstat(ARGS);
2660 if (S_ISLNK(PL_statcache.st_mode))
2669 I32 result = my_stat(ARGS);
2673 if (PL_statcache.st_mode & S_ISUID)
2683 I32 result = my_stat(ARGS);
2687 if (PL_statcache.st_mode & S_ISGID)
2697 I32 result = my_stat(ARGS);
2701 if (PL_statcache.st_mode & S_ISVTX)
2712 char *tmps = Nullch;
2715 if (PL_op->op_flags & OPf_REF)
2717 else if (isGV(TOPs))
2719 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2720 gv = (GV*)SvRV(POPs);
2722 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
2724 if (GvIO(gv) && IoIFP(GvIOp(gv)))
2725 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
2726 else if (tmps && isDIGIT(*tmps))
2730 if (PerlLIO_isatty(fd))
2735 #if defined(atarist) /* this will work with atariST. Configure will
2736 make guesses for other systems. */
2737 # define FILE_base(f) ((f)->_base)
2738 # define FILE_ptr(f) ((f)->_ptr)
2739 # define FILE_cnt(f) ((f)->_cnt)
2740 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
2750 register STDCHAR *s;
2756 if (PL_op->op_flags & OPf_REF)
2758 else if (isGV(TOPs))
2760 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2761 gv = (GV*)SvRV(POPs);
2767 if (gv == PL_defgv) {
2769 io = GvIO(PL_statgv);
2772 goto really_filename;
2777 PL_laststatval = -1;
2778 sv_setpv(PL_statname, "");
2779 io = GvIO(PL_statgv);
2781 if (io && IoIFP(io)) {
2782 if (! PerlIO_has_base(IoIFP(io)))
2783 DIE("-T and -B not implemented on filehandles");
2784 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
2785 if (PL_laststatval < 0)
2787 if (S_ISDIR(PL_statcache.st_mode)) /* handle NFS glitch */
2788 if (PL_op->op_type == OP_FTTEXT)
2792 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
2793 i = PerlIO_getc(IoIFP(io));
2795 (void)PerlIO_ungetc(IoIFP(io),i);
2797 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
2799 len = PerlIO_get_bufsiz(IoIFP(io));
2800 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
2801 /* sfio can have large buffers - limit to 512 */
2806 if (ckWARN(WARN_UNOPENED))
2807 warner(WARN_UNOPENED, "Test on unopened file <%s>",
2808 GvENAME(cGVOP->op_gv));
2809 SETERRNO(EBADF,RMS$_IFI);
2817 PL_laststatval = -1;
2818 sv_setpv(PL_statname, SvPV(sv, n_a));
2820 i = PerlLIO_open3(SvPV(sv, n_a), O_RDONLY, 0);
2822 i = PerlLIO_open(SvPV(sv, n_a), 0);
2825 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
2826 warner(WARN_NEWLINE, PL_warn_nl, "open");
2829 PL_laststatval = PerlLIO_fstat(i, &PL_statcache);
2830 if (PL_laststatval < 0)
2832 len = PerlLIO_read(i, tbuf, 512);
2833 (void)PerlLIO_close(i);
2835 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
2836 RETPUSHNO; /* special case NFS directories */
2837 RETPUSHYES; /* null file is anything */
2842 /* now scan s to look for textiness */
2843 /* XXX ASCII dependent code */
2845 for (i = 0; i < len; i++, s++) {
2846 if (!*s) { /* null never allowed in text */
2851 else if (!(isPRINT(*s) || isSPACE(*s)))
2857 *s != '\n' && *s != '\r' && *s != '\b' &&
2858 *s != '\t' && *s != '\f' && *s != 27)
2863 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
2871 return pp_fttext(ARGS);
2887 if (!tmps || !*tmps) {
2888 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
2890 tmps = SvPV(*svp, n_a);
2892 if (!tmps || !*tmps) {
2893 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
2895 tmps = SvPV(*svp, n_a);
2898 if (!tmps || !*tmps) {
2899 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
2901 tmps = SvPV(*svp, n_a);
2904 TAINT_PROPER("chdir");
2905 PUSHi( PerlDir_chdir(tmps) >= 0 );
2907 /* Clear the DEFAULT element of ENV so we'll get the new value
2909 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
2916 djSP; dMARK; dTARGET;
2919 value = (I32)apply(PL_op->op_type, MARK, SP);
2924 DIE(PL_no_func, "Unsupported function chown");
2935 TAINT_PROPER("chroot");
2936 PUSHi( chroot(tmps) >= 0 );
2939 DIE(PL_no_func, "chroot");
2945 djSP; dMARK; dTARGET;
2947 value = (I32)apply(PL_op->op_type, MARK, SP);
2955 djSP; dMARK; dTARGET;
2957 value = (I32)apply(PL_op->op_type, MARK, SP);
2965 djSP; dMARK; dTARGET;
2967 value = (I32)apply(PL_op->op_type, MARK, SP);
2979 char *tmps2 = POPpx;
2980 char *tmps = SvPV(TOPs, n_a);
2981 TAINT_PROPER("rename");
2983 anum = PerlLIO_rename(tmps, tmps2);
2985 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
2986 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
2989 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
2990 (void)UNLINK(tmps2);
2991 if (!(anum = link(tmps, tmps2)))
2992 anum = UNLINK(tmps);
3005 char *tmps2 = POPpx;
3006 char *tmps = SvPV(TOPs, n_a);
3007 TAINT_PROPER("link");
3008 SETi( link(tmps, tmps2) >= 0 );
3010 DIE(PL_no_func, "Unsupported function link");
3020 char *tmps2 = POPpx;
3021 char *tmps = SvPV(TOPs, n_a);
3022 TAINT_PROPER("symlink");
3023 SETi( symlink(tmps, tmps2) >= 0 );
3026 DIE(PL_no_func, "symlink");
3035 char buf[MAXPATHLEN];
3039 #ifndef INCOMPLETE_TAINTS
3043 len = readlink(tmps, buf, sizeof buf);
3051 RETSETUNDEF; /* just pretend it's a normal file */
3055 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3057 dooneliner(cmd, filename)
3061 char *save_filename = filename;
3067 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3068 strcpy(cmdline, cmd);
3069 strcat(cmdline, " ");
3070 for (s = cmdline + strlen(cmdline); *filename; ) {
3075 myfp = PerlProc_popen(cmdline, "r");
3079 SV *tmpsv = sv_newmortal();
3080 /* Need to save/restore 'PL_rs' ?? */
3081 s = sv_gets(tmpsv, myfp, 0);
3082 (void)PerlProc_pclose(myfp);
3086 #ifdef HAS_SYS_ERRLIST
3091 /* you don't see this */
3093 #ifdef HAS_SYS_ERRLIST
3101 if (instr(s, errmsg)) {
3108 #define EACCES EPERM
3110 if (instr(s, "cannot make"))
3111 SETERRNO(EEXIST,RMS$_FEX);
3112 else if (instr(s, "existing file"))
3113 SETERRNO(EEXIST,RMS$_FEX);
3114 else if (instr(s, "ile exists"))
3115 SETERRNO(EEXIST,RMS$_FEX);
3116 else if (instr(s, "non-exist"))
3117 SETERRNO(ENOENT,RMS$_FNF);
3118 else if (instr(s, "does not exist"))
3119 SETERRNO(ENOENT,RMS$_FNF);
3120 else if (instr(s, "not empty"))
3121 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3122 else if (instr(s, "cannot access"))
3123 SETERRNO(EACCES,RMS$_PRV);
3125 SETERRNO(EPERM,RMS$_PRV);
3128 else { /* some mkdirs return no failure indication */
3129 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3130 if (PL_op->op_type == OP_RMDIR)
3135 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3152 char *tmps = SvPV(TOPs, n_a);
3154 TAINT_PROPER("mkdir");
3156 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3158 SETi( dooneliner("mkdir", tmps) );
3159 oldumask = PerlLIO_umask(0);
3160 PerlLIO_umask(oldumask);
3161 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3173 TAINT_PROPER("rmdir");
3175 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3177 XPUSHi( dooneliner("rmdir", tmps) );
3182 /* Directory calls. */
3187 #if defined(Direntry_t) && defined(HAS_READDIR)
3189 char *dirname = POPpx;
3191 register IO *io = GvIOn(gv);
3197 PerlDir_close(IoDIRP(io));
3198 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3204 SETERRNO(EBADF,RMS$_DIR);
3207 DIE(PL_no_dir_func, "opendir");
3214 #if defined(Direntry_t) && defined(HAS_READDIR)
3216 Direntry_t *readdir _((DIR *));
3218 register Direntry_t *dp;
3220 register IO *io = GvIOn(gv);
3223 if (!io || !IoDIRP(io))
3226 if (GIMME == G_ARRAY) {
3228 while (dp = (Direntry_t *)PerlDir_read(IoDIRP(io))) {
3230 sv = newSVpv(dp->d_name, dp->d_namlen);
3232 sv = newSVpv(dp->d_name, 0);
3234 #ifndef INCOMPLETE_TAINTS
3237 XPUSHs(sv_2mortal(sv));
3241 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3244 sv = newSVpv(dp->d_name, dp->d_namlen);
3246 sv = newSVpv(dp->d_name, 0);
3248 #ifndef INCOMPLETE_TAINTS
3251 XPUSHs(sv_2mortal(sv));
3257 SETERRNO(EBADF,RMS$_ISI);
3258 if (GIMME == G_ARRAY)
3263 DIE(PL_no_dir_func, "readdir");
3270 #if defined(HAS_TELLDIR) || defined(telldir)
3271 # ifdef NEED_TELLDIR_PROTO /* XXX does _anyone_ need this? --AD 2/20/1998 */
3272 long telldir _((DIR *));
3275 register IO *io = GvIOn(gv);
3277 if (!io || !IoDIRP(io))
3280 PUSHi( PerlDir_tell(IoDIRP(io)) );
3284 SETERRNO(EBADF,RMS$_ISI);
3287 DIE(PL_no_dir_func, "telldir");
3294 #if defined(HAS_SEEKDIR) || defined(seekdir)
3297 register IO *io = GvIOn(gv);
3299 if (!io || !IoDIRP(io))
3302 (void)PerlDir_seek(IoDIRP(io), along);
3307 SETERRNO(EBADF,RMS$_ISI);
3310 DIE(PL_no_dir_func, "seekdir");
3317 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3319 register IO *io = GvIOn(gv);
3321 if (!io || !IoDIRP(io))
3324 (void)PerlDir_rewind(IoDIRP(io));
3328 SETERRNO(EBADF,RMS$_ISI);
3331 DIE(PL_no_dir_func, "rewinddir");
3338 #if defined(Direntry_t) && defined(HAS_READDIR)
3340 register IO *io = GvIOn(gv);
3342 if (!io || !IoDIRP(io))
3345 #ifdef VOID_CLOSEDIR
3346 PerlDir_close(IoDIRP(io));
3348 if (PerlDir_close(IoDIRP(io)) < 0) {
3349 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3358 SETERRNO(EBADF,RMS$_IFI);
3361 DIE(PL_no_dir_func, "closedir");
3365 /* Process control. */
3380 if (tmpgv = gv_fetchpv("$", TRUE, SVt_PV))
3381 sv_setiv(GvSV(tmpgv), (IV)getpid());
3382 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3387 DIE(PL_no_func, "Unsupported function fork");
3393 #if !defined(DOSISH) || defined(OS2) || defined(WIN32)
3398 childpid = wait4pid(-1, &argflags, 0);
3399 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3403 DIE(PL_no_func, "Unsupported function wait");
3409 #if !defined(DOSISH) || defined(OS2) || defined(WIN32)
3417 childpid = wait4pid(childpid, &argflags, optype);
3418 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3422 DIE(PL_no_func, "Unsupported function waitpid");
3428 djSP; dMARK; dORIGMARK; dTARGET;
3433 Sigsave_t ihand,qhand; /* place to save signals during system() */
3436 if (SP - MARK == 1) {
3438 char *junk = SvPV(TOPs, n_a);
3440 TAINT_PROPER("system");
3443 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2)
3444 while ((childpid = vfork()) == -1) {
3445 if (errno != EAGAIN) {
3454 rsignal_save(SIGINT, SIG_IGN, &ihand);
3455 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
3457 result = wait4pid(childpid, &status, 0);
3458 } while (result == -1 && errno == EINTR);
3459 (void)rsignal_restore(SIGINT, &ihand);
3460 (void)rsignal_restore(SIGQUIT, &qhand);
3461 STATUS_NATIVE_SET(result == -1 ? -1 : status);
3462 do_execfree(); /* free any memory child malloced on vfork */
3464 PUSHi(STATUS_CURRENT);
3467 if (PL_op->op_flags & OPf_STACKED) {
3468 SV *really = *++MARK;
3469 value = (I32)do_aexec(really, MARK, SP);
3471 else if (SP - MARK != 1)
3472 value = (I32)do_aexec(Nullsv, MARK, SP);
3474 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3477 #else /* ! FORK or VMS or OS/2 */
3478 if (PL_op->op_flags & OPf_STACKED) {
3479 SV *really = *++MARK;
3480 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
3482 else if (SP - MARK != 1)
3483 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
3485 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
3487 STATUS_NATIVE_SET(value);
3490 PUSHi(STATUS_CURRENT);
3491 #endif /* !FORK or VMS */
3497 djSP; dMARK; dORIGMARK; dTARGET;
3501 if (PL_op->op_flags & OPf_STACKED) {
3502 SV *really = *++MARK;
3503 value = (I32)do_aexec(really, MARK, SP);
3505 else if (SP - MARK != 1)
3507 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
3511 (void ) do_aspawn(Nullsv, MARK, SP);
3515 value = (I32)do_aexec(Nullsv, MARK, SP);
3520 char *junk = SvPV(*SP, n_a);
3522 TAINT_PROPER("exec");
3525 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3528 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
3531 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3542 djSP; dMARK; dTARGET;
3545 value = (I32)apply(PL_op->op_type, MARK, SP);
3550 DIE(PL_no_func, "Unsupported function kill");
3558 XPUSHi( getppid() );
3561 DIE(PL_no_func, "getppid");
3577 value = (I32)BSD_GETPGRP(pid);
3579 if (pid != 0 && pid != getpid())
3580 DIE("POSIX getpgrp can't take an argument");
3581 value = (I32)getpgrp();
3586 DIE(PL_no_func, "getpgrp()");
3605 TAINT_PROPER("setpgrp");
3607 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
3609 if ((pgrp != 0 && pgrp != getpid()) || (pid != 0 && pid != getpid()))
3610 DIE("POSIX setpgrp can't take an argument");
3611 SETi( setpgrp() >= 0 );
3612 #endif /* USE_BSDPGRP */
3615 DIE(PL_no_func, "setpgrp()");
3624 #ifdef HAS_GETPRIORITY
3627 SETi( getpriority(which, who) );
3630 DIE(PL_no_func, "getpriority()");
3640 #ifdef HAS_SETPRIORITY
3644 TAINT_PROPER("setpriority");
3645 SETi( setpriority(which, who, niceval) >= 0 );
3648 DIE(PL_no_func, "setpriority()");
3658 XPUSHn( time(Null(Time_t*)) );
3660 XPUSHi( time(Null(Time_t*)) );
3665 /* XXX The POSIX name is CLK_TCK; it is to be preferred
3666 to HZ. Probably. For now, assume that if the system
3667 defines HZ, it does so correctly. (Will this break
3669 Probably we ought to use _sysconf(_SC_CLK_TCK), if
3670 it's supported. --AD 9/96.
3686 DIE("times not implemented");
3691 (void)PerlProc_times(&PL_timesbuf);
3693 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
3694 /* struct tms, though same data */
3698 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_utime)/HZ)));
3699 if (GIMME == G_ARRAY) {
3700 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_stime)/HZ)));
3701 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_cutime)/HZ)));
3702 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_cstime)/HZ)));
3705 #endif /* HAS_TIMES */
3710 return pp_gmtime(ARGS);
3718 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
3719 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
3720 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
3726 when = (Time_t)SvNVx(POPs);
3728 when = (Time_t)SvIVx(POPs);
3731 if (PL_op->op_type == OP_LOCALTIME)
3732 tmbuf = localtime(&when);
3734 tmbuf = gmtime(&when);
3738 if (GIMME != G_ARRAY) {
3743 tsv = newSVpvf("%s %s %2d %02d:%02d:%02d %d",
3744 dayname[tmbuf->tm_wday],
3745 monname[tmbuf->tm_mon],
3750 tmbuf->tm_year + 1900);
3751 PUSHs(sv_2mortal(tsv));
3754 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_sec)));
3755 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_min)));
3756 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_hour)));
3757 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mday)));
3758 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mon)));
3759 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_year)));
3760 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_wday)));
3761 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_yday)));
3762 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_isdst)));
3773 anum = alarm((unsigned int)anum);
3780 DIE(PL_no_func, "Unsupported function alarm");
3791 (void)time(&lasttime);
3796 PerlProc_sleep((unsigned int)duration);
3799 XPUSHi(when - lasttime);
3803 /* Shared memory. */
3807 return pp_semget(ARGS);
3812 return pp_semctl(ARGS);
3817 return pp_shmwrite(ARGS);
3822 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3823 djSP; dMARK; dTARGET;
3824 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
3829 return pp_semget(ARGS);
3833 /* Message passing. */
3837 return pp_semget(ARGS);
3842 return pp_semctl(ARGS);
3847 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3848 djSP; dMARK; dTARGET;
3849 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
3854 return pp_semget(ARGS);
3860 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3861 djSP; dMARK; dTARGET;
3862 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
3867 return pp_semget(ARGS);
3875 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3876 djSP; dMARK; dTARGET;
3877 int anum = do_ipcget(PL_op->op_type, MARK, SP);
3884 DIE("System V IPC is not implemented on this machine");
3890 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3891 djSP; dMARK; dTARGET;
3892 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
3900 PUSHp(zero_but_true, ZBTLEN);
3904 return pp_semget(ARGS);
3910 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3911 djSP; dMARK; dTARGET;
3912 I32 value = (I32)(do_semop(MARK, SP) >= 0);
3917 return pp_semget(ARGS);
3921 /* Get system info. */
3925 #ifdef HAS_GETHOSTBYNAME
3926 return pp_ghostent(ARGS);
3928 DIE(PL_no_sock_func, "gethostbyname");
3934 #ifdef HAS_GETHOSTBYADDR
3935 return pp_ghostent(ARGS);
3937 DIE(PL_no_sock_func, "gethostbyaddr");
3944 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
3945 I32 which = PL_op->op_type;
3946 register char **elem;
3948 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
3949 struct hostent *PerlSock_gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
3950 struct hostent *PerlSock_gethostbyname(Netdb_name_t);
3951 struct hostent *PerlSock_gethostent(void);
3953 struct hostent *hent;
3958 if (which == OP_GHBYNAME)
3959 #ifdef HAS_GETHOSTBYNAME
3960 hent = PerlSock_gethostbyname(POPpx);
3962 DIE(PL_no_sock_func, "gethostbyname");
3964 else if (which == OP_GHBYADDR) {
3965 #ifdef HAS_GETHOSTBYADDR
3966 int addrtype = POPi;
3969 Netdb_host_t addr = (Netdb_host_t) SvPV(addrsv, addrlen);
3971 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
3973 DIE(PL_no_sock_func, "gethostbyaddr");
3977 #ifdef HAS_GETHOSTENT
3978 hent = PerlSock_gethostent();
3980 DIE(PL_no_sock_func, "gethostent");
3983 #ifdef HOST_NOT_FOUND
3985 STATUS_NATIVE_SET(h_errno);
3988 if (GIMME != G_ARRAY) {
3989 PUSHs(sv = sv_newmortal());
3991 if (which == OP_GHBYNAME) {
3993 sv_setpvn(sv, hent->h_addr, hent->h_length);
3996 sv_setpv(sv, (char*)hent->h_name);
4002 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4003 sv_setpv(sv, (char*)hent->h_name);
4004 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4005 for (elem = hent->h_aliases; elem && *elem; elem++) {
4006 sv_catpv(sv, *elem);
4008 sv_catpvn(sv, " ", 1);
4010 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4011 sv_setiv(sv, (IV)hent->h_addrtype);
4012 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4013 len = hent->h_length;
4014 sv_setiv(sv, (IV)len);
4016 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4017 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4018 sv_setpvn(sv, *elem, len);
4021 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4023 sv_setpvn(sv, hent->h_addr, len);
4028 DIE(PL_no_sock_func, "gethostent");
4034 #ifdef HAS_GETNETBYNAME
4035 return pp_gnetent(ARGS);
4037 DIE(PL_no_sock_func, "getnetbyname");
4043 #ifdef HAS_GETNETBYADDR
4044 return pp_gnetent(ARGS);
4046 DIE(PL_no_sock_func, "getnetbyaddr");
4053 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4054 I32 which = PL_op->op_type;
4055 register char **elem;
4057 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4058 struct netent *PerlSock_getnetbyaddr(Netdb_net_t, int);
4059 struct netent *PerlSock_getnetbyname(Netdb_name_t);
4060 struct netent *PerlSock_getnetent(void);
4062 struct netent *nent;
4065 if (which == OP_GNBYNAME)
4066 #ifdef HAS_GETNETBYNAME
4067 nent = PerlSock_getnetbyname(POPpx);
4069 DIE(PL_no_sock_func, "getnetbyname");
4071 else if (which == OP_GNBYADDR) {
4072 #ifdef HAS_GETNETBYADDR
4073 int addrtype = POPi;
4074 Netdb_net_t addr = (Netdb_net_t) U_L(POPn);
4075 nent = PerlSock_getnetbyaddr(addr, addrtype);
4077 DIE(PL_no_sock_func, "getnetbyaddr");
4081 #ifdef HAS_GETNETENT
4082 nent = PerlSock_getnetent();
4084 DIE(PL_no_sock_func, "getnetent");
4088 if (GIMME != G_ARRAY) {
4089 PUSHs(sv = sv_newmortal());
4091 if (which == OP_GNBYNAME)
4092 sv_setiv(sv, (IV)nent->n_net);
4094 sv_setpv(sv, nent->n_name);
4100 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4101 sv_setpv(sv, nent->n_name);
4102 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4103 for (elem = nent->n_aliases; elem && *elem; elem++) {
4104 sv_catpv(sv, *elem);
4106 sv_catpvn(sv, " ", 1);
4108 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4109 sv_setiv(sv, (IV)nent->n_addrtype);
4110 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4111 sv_setiv(sv, (IV)nent->n_net);
4116 DIE(PL_no_sock_func, "getnetent");
4122 #ifdef HAS_GETPROTOBYNAME
4123 return pp_gprotoent(ARGS);
4125 DIE(PL_no_sock_func, "getprotobyname");
4131 #ifdef HAS_GETPROTOBYNUMBER
4132 return pp_gprotoent(ARGS);
4134 DIE(PL_no_sock_func, "getprotobynumber");
4141 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4142 I32 which = PL_op->op_type;
4143 register char **elem;
4145 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4146 struct protoent *PerlSock_getprotobyname(Netdb_name_t);
4147 struct protoent *PerlSock_getprotobynumber(int);
4148 struct protoent *PerlSock_getprotoent(void);
4150 struct protoent *pent;
4153 if (which == OP_GPBYNAME)
4154 #ifdef HAS_GETPROTOBYNAME
4155 pent = PerlSock_getprotobyname(POPpx);
4157 DIE(PL_no_sock_func, "getprotobyname");
4159 else if (which == OP_GPBYNUMBER)
4160 #ifdef HAS_GETPROTOBYNUMBER
4161 pent = PerlSock_getprotobynumber(POPi);
4163 DIE(PL_no_sock_func, "getprotobynumber");
4166 #ifdef HAS_GETPROTOENT
4167 pent = PerlSock_getprotoent();
4169 DIE(PL_no_sock_func, "getprotoent");
4173 if (GIMME != G_ARRAY) {
4174 PUSHs(sv = sv_newmortal());
4176 if (which == OP_GPBYNAME)
4177 sv_setiv(sv, (IV)pent->p_proto);
4179 sv_setpv(sv, pent->p_name);
4185 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4186 sv_setpv(sv, pent->p_name);
4187 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4188 for (elem = pent->p_aliases; elem && *elem; elem++) {
4189 sv_catpv(sv, *elem);
4191 sv_catpvn(sv, " ", 1);
4193 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4194 sv_setiv(sv, (IV)pent->p_proto);
4199 DIE(PL_no_sock_func, "getprotoent");
4205 #ifdef HAS_GETSERVBYNAME
4206 return pp_gservent(ARGS);
4208 DIE(PL_no_sock_func, "getservbyname");
4214 #ifdef HAS_GETSERVBYPORT
4215 return pp_gservent(ARGS);
4217 DIE(PL_no_sock_func, "getservbyport");
4224 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4225 I32 which = PL_op->op_type;
4226 register char **elem;
4228 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4229 struct servent *PerlSock_getservbyname(Netdb_name_t, Netdb_name_t);
4230 struct servent *PerlSock_getservbyport(int, Netdb_name_t);
4231 struct servent *PerlSock_getservent(void);
4233 struct servent *sent;
4236 if (which == OP_GSBYNAME) {
4237 #ifdef HAS_GETSERVBYNAME
4238 char *proto = POPpx;
4241 if (proto && !*proto)
4244 sent = PerlSock_getservbyname(name, proto);
4246 DIE(PL_no_sock_func, "getservbyname");
4249 else if (which == OP_GSBYPORT) {
4250 #ifdef HAS_GETSERVBYPORT
4251 char *proto = POPpx;
4252 unsigned short port = POPu;
4255 port = PerlSock_htons(port);
4257 sent = PerlSock_getservbyport(port, proto);
4259 DIE(PL_no_sock_func, "getservbyport");
4263 #ifdef HAS_GETSERVENT
4264 sent = PerlSock_getservent();
4266 DIE(PL_no_sock_func, "getservent");
4270 if (GIMME != G_ARRAY) {
4271 PUSHs(sv = sv_newmortal());
4273 if (which == OP_GSBYNAME) {
4275 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4277 sv_setiv(sv, (IV)(sent->s_port));
4281 sv_setpv(sv, sent->s_name);
4287 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4288 sv_setpv(sv, sent->s_name);
4289 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4290 for (elem = sent->s_aliases; elem && *elem; elem++) {
4291 sv_catpv(sv, *elem);
4293 sv_catpvn(sv, " ", 1);
4295 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4297 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4299 sv_setiv(sv, (IV)(sent->s_port));
4301 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4302 sv_setpv(sv, sent->s_proto);
4307 DIE(PL_no_sock_func, "getservent");
4314 #ifdef HAS_SETHOSTENT
4315 PerlSock_sethostent(TOPi);
4318 DIE(PL_no_sock_func, "sethostent");
4325 #ifdef HAS_SETNETENT
4326 PerlSock_setnetent(TOPi);
4329 DIE(PL_no_sock_func, "setnetent");
4336 #ifdef HAS_SETPROTOENT
4337 PerlSock_setprotoent(TOPi);
4340 DIE(PL_no_sock_func, "setprotoent");
4347 #ifdef HAS_SETSERVENT
4348 PerlSock_setservent(TOPi);
4351 DIE(PL_no_sock_func, "setservent");
4358 #ifdef HAS_ENDHOSTENT
4359 PerlSock_endhostent();
4363 DIE(PL_no_sock_func, "endhostent");
4370 #ifdef HAS_ENDNETENT
4371 PerlSock_endnetent();
4375 DIE(PL_no_sock_func, "endnetent");
4382 #ifdef HAS_ENDPROTOENT
4383 PerlSock_endprotoent();
4387 DIE(PL_no_sock_func, "endprotoent");
4394 #ifdef HAS_ENDSERVENT
4395 PerlSock_endservent();
4399 DIE(PL_no_sock_func, "endservent");
4406 return pp_gpwent(ARGS);
4408 DIE(PL_no_func, "getpwnam");
4415 return pp_gpwent(ARGS);
4417 DIE(PL_no_func, "getpwuid");
4424 #if defined(HAS_PASSWD) && defined(HAS_GETPWENT)
4425 I32 which = PL_op->op_type;
4427 struct passwd *pwent;
4430 if (which == OP_GPWNAM)
4431 pwent = getpwnam(POPpx);
4432 else if (which == OP_GPWUID)
4433 pwent = getpwuid(POPi);
4435 pwent = (struct passwd *)getpwent();
4438 if (GIMME != G_ARRAY) {
4439 PUSHs(sv = sv_newmortal());
4441 if (which == OP_GPWNAM)
4442 sv_setiv(sv, (IV)pwent->pw_uid);
4444 sv_setpv(sv, pwent->pw_name);
4450 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4451 sv_setpv(sv, pwent->pw_name);
4453 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4455 sv_setpv(sv, pwent->pw_passwd);
4458 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4459 sv_setiv(sv, (IV)pwent->pw_uid);
4461 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4462 sv_setiv(sv, (IV)pwent->pw_gid);
4464 /* pw_change, pw_quota, and pw_age are mutually exclusive. */
4465 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4467 sv_setiv(sv, (IV)pwent->pw_change);
4470 sv_setiv(sv, (IV)pwent->pw_quota);
4473 sv_setpv(sv, pwent->pw_age);
4478 /* pw_class and pw_comment are mutually exclusive. */
4479 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4481 sv_setpv(sv, pwent->pw_class);
4484 sv_setpv(sv, pwent->pw_comment);
4488 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4490 sv_setpv(sv, pwent->pw_gecos);
4492 #ifndef INCOMPLETE_TAINTS
4493 /* pw_gecos is tainted because user himself can diddle with it. */
4497 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4498 sv_setpv(sv, pwent->pw_dir);
4500 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4501 sv_setpv(sv, pwent->pw_shell);
4504 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4505 sv_setiv(sv, (IV)pwent->pw_expire);
4510 DIE(PL_no_func, "getpwent");
4517 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT) && !defined(CYGWIN32)
4521 DIE(PL_no_func, "setpwent");
4528 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
4532 DIE(PL_no_func, "endpwent");
4539 return pp_ggrent(ARGS);
4541 DIE(PL_no_func, "getgrnam");
4548 return pp_ggrent(ARGS);
4550 DIE(PL_no_func, "getgrgid");
4557 #if defined(HAS_GROUP) && defined(HAS_GETGRENT)
4558 I32 which = PL_op->op_type;
4559 register char **elem;
4561 struct group *grent;
4564 if (which == OP_GGRNAM)
4565 grent = (struct group *)getgrnam(POPpx);
4566 else if (which == OP_GGRGID)
4567 grent = (struct group *)getgrgid(POPi);
4569 grent = (struct group *)getgrent();
4572 if (GIMME != G_ARRAY) {
4573 PUSHs(sv = sv_newmortal());
4575 if (which == OP_GGRNAM)
4576 sv_setiv(sv, (IV)grent->gr_gid);
4578 sv_setpv(sv, grent->gr_name);
4584 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4585 sv_setpv(sv, grent->gr_name);
4587 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4589 sv_setpv(sv, grent->gr_passwd);
4592 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4593 sv_setiv(sv, (IV)grent->gr_gid);
4595 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4596 for (elem = grent->gr_mem; elem && *elem; elem++) {
4597 sv_catpv(sv, *elem);
4599 sv_catpvn(sv, " ", 1);
4605 DIE(PL_no_func, "getgrent");
4612 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
4616 DIE(PL_no_func, "setgrent");
4623 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
4627 DIE(PL_no_func, "endgrent");
4637 if (!(tmps = PerlProc_getlogin()))
4639 PUSHp(tmps, strlen(tmps));
4642 DIE(PL_no_func, "getlogin");
4646 /* Miscellaneous. */
4651 djSP; dMARK; dORIGMARK; dTARGET;
4652 register I32 items = SP - MARK;
4653 unsigned long a[20];
4660 while (++MARK <= SP) {
4661 if (SvTAINTED(*MARK)) {
4667 TAINT_PROPER("syscall");
4670 /* This probably won't work on machines where sizeof(long) != sizeof(int)
4671 * or where sizeof(long) != sizeof(char*). But such machines will
4672 * not likely have syscall implemented either, so who cares?
4674 while (++MARK <= SP) {
4675 if (SvNIOK(*MARK) || !i)
4676 a[i++] = SvIV(*MARK);
4677 else if (*MARK == &PL_sv_undef)
4680 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
4686 DIE("Too many args to syscall");
4688 DIE("Too few args to syscall");
4690 retval = syscall(a[0]);
4693 retval = syscall(a[0],a[1]);
4696 retval = syscall(a[0],a[1],a[2]);
4699 retval = syscall(a[0],a[1],a[2],a[3]);
4702 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
4705 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
4708 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
4711 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
4715 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
4718 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
4721 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4725 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4729 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4733 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4734 a[10],a[11],a[12],a[13]);
4736 #endif /* atarist */
4742 DIE(PL_no_func, "syscall");
4746 #ifdef FCNTL_EMULATE_FLOCK
4748 /* XXX Emulate flock() with fcntl().
4749 What's really needed is a good file locking module.
4753 fcntl_emulate_flock(int fd, int operation)
4757 switch (operation & ~LOCK_NB) {
4759 flock.l_type = F_RDLCK;
4762 flock.l_type = F_WRLCK;
4765 flock.l_type = F_UNLCK;
4771 flock.l_whence = SEEK_SET;
4772 flock.l_start = flock.l_len = 0L;
4774 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
4777 #endif /* FCNTL_EMULATE_FLOCK */
4779 #ifdef LOCKF_EMULATE_FLOCK
4781 /* XXX Emulate flock() with lockf(). This is just to increase
4782 portability of scripts. The calls are not completely
4783 interchangeable. What's really needed is a good file
4787 /* The lockf() constants might have been defined in <unistd.h>.
4788 Unfortunately, <unistd.h> causes troubles on some mixed
4789 (BSD/POSIX) systems, such as SunOS 4.1.3.
4791 Further, the lockf() constants aren't POSIX, so they might not be
4792 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
4793 just stick in the SVID values and be done with it. Sigh.
4797 # define F_ULOCK 0 /* Unlock a previously locked region */
4800 # define F_LOCK 1 /* Lock a region for exclusive use */
4803 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
4806 # define F_TEST 3 /* Test a region for other processes locks */
4810 lockf_emulate_flock (fd, operation)
4818 /* flock locks entire file so for lockf we need to do the same */
4820 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
4821 if (pos > 0) /* is seekable and needs to be repositioned */
4822 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
4823 pos = -1; /* seek failed, so don't seek back afterwards */
4826 switch (operation) {
4828 /* LOCK_SH - get a shared lock */
4830 /* LOCK_EX - get an exclusive lock */
4832 i = lockf (fd, F_LOCK, 0);
4835 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
4836 case LOCK_SH|LOCK_NB:
4837 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
4838 case LOCK_EX|LOCK_NB:
4839 i = lockf (fd, F_TLOCK, 0);
4841 if ((errno == EAGAIN) || (errno == EACCES))
4842 errno = EWOULDBLOCK;
4845 /* LOCK_UN - unlock (non-blocking is a no-op) */
4847 case LOCK_UN|LOCK_NB:
4848 i = lockf (fd, F_ULOCK, 0);
4851 /* Default - can't decipher operation */
4858 if (pos > 0) /* need to restore position of the handle */
4859 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
4864 #endif /* LOCKF_EMULATE_FLOCK */