3 * Copyright (c) 1991-1994, 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. */
26 # include <sys/wait.h>
30 # include <sys/resource.h>
33 /* Put this after #includes because fork and vfork prototypes may
40 #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */
41 # include <sys/socket.h>
45 # include <net/errno.h>
52 #include <sys/select.h>
64 struct passwd *getpwnam _((char *));
65 struct passwd *getpwuid _((Uid_t));
67 struct passwd *getpwent _((void));
74 struct group *getgrnam _((char *));
75 struct group *getgrgid _((Gid_t));
77 struct group *getgrent _((void));
90 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
91 static int dooneliner _((char *cmd, char *filename));
95 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
98 # define my_chsize chsize
103 #else /* no flock() */
105 /* fcntl.h might not have been included, even if it exists, because
106 the current Configure only sets I_FCNTL if it's needed to pick up
107 the *_OK constants. Make sure it has been included before testing
108 the fcntl() locking constants. */
109 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
113 # if defined(HAS_FCNTL) && defined(F_SETLK) && defined (F_SETLKW)
114 # define FLOCK fcntl_emulate_flock
115 # define FCNTL_EMULATE_FLOCK
116 # else /* no flock() or fcntl(F_SETLK,...) */
118 # define FLOCK lockf_emulate_flock
119 # define LOCKF_EMULATE_FLOCK
121 # endif /* no flock() or fcntl(F_SETLK,...) */
124 static int FLOCK _((int, int));
127 * These are the flock() constants. Since this sytems doesn't have
128 * flock(), the values of the constants are probably not available.
142 # endif /* emulating flock() */
144 #endif /* no flock() */
155 fp = my_popen(tmps, "r");
157 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
158 if (GIMME == G_SCALAR) {
159 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
169 if (sv_gets(sv, fp, 0) == Nullch) {
173 XPUSHs(sv_2mortal(sv));
174 if (SvLEN(sv) - SvCUR(sv) > 20) {
175 SvLEN_set(sv, SvCUR(sv)+1);
176 Renew(SvPVX(sv), SvLEN(sv), char);
180 STATUS_NATIVE_SET(my_pclose(fp));
183 STATUS_NATIVE_SET(-1);
184 if (GIMME == G_SCALAR)
196 SAVESPTR(last_in_gv); /* We don't want this to be permanent. */
197 last_in_gv = (GV*)*stack_sp--;
199 SAVESPTR(rs); /* This is not permanent, either. */
200 rs = sv_2mortal(newSVpv("", 1));
207 result = do_readline();
214 last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*stack_sp--)), na), TRUE,SVt_PVIO);
215 return do_readline();
220 last_in_gv = cGVOP->op_gv;
221 return do_readline();
228 if (SP - MARK != 1) {
230 do_join(TARG, &sv_no, MARK, SP);
231 tmps = SvPV(TARG, na);
235 tmps = SvPV(TOPs, na);
237 if (!tmps || !*tmps) {
238 SV *error = GvSV(errgv);
239 (void)SvUPGRADE(error, SVt_PV);
240 if (SvPOK(error) && SvCUR(error))
241 sv_catpv(error, "\t...caught");
242 tmps = SvPV(error, na);
245 tmps = "Warning: something's wrong";
254 if (SP - MARK != 1) {
256 do_join(TARG, &sv_no, MARK, SP);
257 tmps = SvPV(TARG, na);
261 tmps = SvPV(TOPs, na);
263 if (!tmps || !*tmps) {
264 SV *error = GvSV(errgv);
265 (void)SvUPGRADE(error, SVt_PV);
266 if (SvPOK(error) && SvCUR(error))
267 sv_catpv(error, "\t...propagated");
268 tmps = SvPV(error, na);
288 DIE(no_usym, "filehandle");
293 DIE(no_usym, "filehandle");
295 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
296 tmps = SvPV(sv, len);
297 if (do_open(gv, tmps, len, FALSE, 0, 0, Nullfp))
298 PUSHi( (I32)forkprocess );
299 else if (forkprocess == 0) /* we are a new child */
316 PUSHs( do_close(gv, TRUE) ? &sv_yes : &sv_no );
336 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
337 DIE(no_usym, "filehandle");
342 do_close(rgv, FALSE);
344 do_close(wgv, FALSE);
349 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
350 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
351 IoIFP(wstio) = IoOFP(wstio);
355 if (!IoIFP(rstio) || !IoOFP(wstio)) {
356 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
358 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
368 DIE(no_func, "pipe");
381 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
383 PUSHi(PerlIO_fileno(fp));
399 TAINT_PROPER("umask");
402 DIE(no_func, "Unsupported function umask");
420 if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
425 if (!PerlIO_flush(fp) && (fp->_flag |= _IOBIN))
430 if (setmode(PerlIO_fileno(fp), OP_BINARY) != -1)
436 #if defined(USEMYBINMODE)
437 if (my_binmode(fp,IoTYPE(io)) != NULL)
456 SV **mark = stack_base + ++*markstack_ptr; /* reuse in entersub */
457 I32 markoff = mark - stack_base - 1;
461 if (SvTYPE(varsv) == SVt_PVHV)
462 methname = "TIEHASH";
463 else if (SvTYPE(varsv) == SVt_PVAV)
464 methname = "TIEARRAY";
465 else if (SvTYPE(varsv) == SVt_PVGV)
466 methname = "TIEHANDLE";
468 methname = "TIESCALAR";
470 stash = gv_stashsv(mark[1], FALSE);
471 if (!stash || !(gv = gv_fetchmethod(stash, methname)))
472 DIE("Can't locate object method \"%s\" via package \"%s\"",
473 methname, SvPV(mark[1],na));
475 Zero(&myop, 1, BINOP);
476 myop.op_last = (OP *) &myop;
477 myop.op_next = Nullop;
478 myop.op_flags = OPf_KNOW|OPf_STACKED;
483 if (perldb && curstash != debstash)
484 op->op_private |= OPpENTERSUB_DB;
486 XPUSHs((SV*)GvCV(gv));
489 if (op = pp_entersub())
494 if (sv_isobject(sv)) {
495 if (SvTYPE(varsv) == SVt_PVHV || SvTYPE(varsv) == SVt_PVAV) {
496 sv_unmagic(varsv, 'P');
497 sv_magic(varsv, sv, 'P', Nullch, 0);
500 sv_unmagic(varsv, 'q');
501 sv_magic(varsv, sv, 'q', Nullch, 0);
505 SP = stack_base + markoff;
520 if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
521 mg = mg_find(sv, 'P') ;
523 mg = mg_find(sv, 'q') ;
525 if (mg && SvREFCNT(SvRV(mg->mg_obj)) > 1)
526 warn("untie attempted while %d inner references still exist",
527 SvREFCNT(SvRV(mg->mg_obj)) - 1 ) ;
531 if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
546 if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
547 mg = mg_find(sv, 'P') ;
549 mg = mg_find(sv, 'q') ;
552 PUSHs(sv_2mortal(newSVsv(mg->mg_obj))) ;
572 sv = sv_mortalcopy(&sv_no);
573 sv_setpv(sv, "AnyDBM_File");
574 stash = gv_stashsv(sv, FALSE);
575 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
577 perl_require_pv("AnyDBM_File.pm");
579 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
580 DIE("No dbm on this machine");
583 Zero(&myop, 1, BINOP);
584 myop.op_last = (OP *) &myop;
585 myop.op_next = Nullop;
586 myop.op_flags = OPf_KNOW|OPf_STACKED;
591 if (perldb && curstash != debstash)
592 op->op_private |= OPpENTERSUB_DB;
600 PUSHs(sv_2mortal(newSViv(O_RDWR|O_CREAT)));
602 PUSHs(sv_2mortal(newSViv(O_RDWR)));
604 PUSHs((SV*)GvCV(gv));
607 if (op = pp_entersub())
611 if (!sv_isobject(TOPs)) {
619 PUSHs(sv_2mortal(newSViv(O_RDONLY)));
621 PUSHs((SV*)GvCV(gv));
624 if (op = pp_entersub())
629 if (sv_isobject(TOPs))
630 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
637 return pp_untie(ARGS);
651 struct timeval timebuf;
652 struct timeval *tbuf = &timebuf;
655 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
660 # if BYTEORDER & 0xf0000
661 # define ORDERBYTE (0x88888888 - BYTEORDER)
663 # define ORDERBYTE (0x4444 - BYTEORDER)
669 for (i = 1; i <= 3; i++) {
677 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
678 #if defined(__linux__) || defined(OS2)
679 growsize = sizeof(fd_set);
681 growsize = maxlen; /* little endians can use vecs directly */
690 masksize = NFDBITS / NBBY;
692 masksize = sizeof(long); /* documented int, everyone seems to use long */
694 growsize = maxlen + (masksize - (maxlen % masksize));
695 Zero(&fd_sets[0], 4, char*);
703 timebuf.tv_sec = (long)value;
704 value -= (double)timebuf.tv_sec;
705 timebuf.tv_usec = (long)(value * 1000000.0);
708 tbuf = Null(struct timeval*);
710 for (i = 1; i <= 3; i++) {
717 SvPV_force(sv,na); /* force string conversion */
720 Sv_Grow(sv, growsize);
724 while (++j <= growsize) {
728 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
730 New(403, fd_sets[i], growsize, char);
731 for (offset = 0; offset < growsize; offset += masksize) {
732 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
733 fd_sets[i][j+offset] = s[(k % masksize) + offset];
736 fd_sets[i] = SvPVX(sv);
742 (Select_fd_set_t) fd_sets[1],
743 (Select_fd_set_t) fd_sets[2],
744 (Select_fd_set_t) fd_sets[3],
746 for (i = 1; i <= 3; i++) {
749 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
751 for (offset = 0; offset < growsize; offset += masksize) {
752 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
753 s[(k % masksize) + offset] = fd_sets[i][j+offset];
755 Safefree(fd_sets[i]);
762 if (GIMME == G_ARRAY && tbuf) {
763 value = (double)(timebuf.tv_sec) +
764 (double)(timebuf.tv_usec) / 1000000.0;
765 PUSHs(sv = sv_mortalcopy(&sv_no));
770 DIE("select not implemented");
779 (void)SvREFCNT_inc(gv);
781 SvREFCNT_dec(defoutgv);
791 newdefout = (op->op_private > 0) ? ((GV *) POPs) : NULL;
793 egv = GvEGV(defoutgv);
800 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
801 if (gvp && *gvp == egv) {
802 gv_efullname3(TARG, defoutgv, Nullch);
806 XPUSHs(sv_2mortal(newRV((SV*)egv)));
811 if (!GvIO(newdefout))
813 setdefout(newdefout);
830 if (!gv || do_eof(gv)) /* make sure we have fp with something */
834 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
841 return pp_sysread(ARGS);
850 register CONTEXT *cx;
852 AV* padlist = CvPADLIST(cv);
853 SV** svp = AvARRAY(padlist);
859 PUSHBLOCK(cx, CXt_SUB, stack_sp);
862 curpad = AvARRAY((AV*)svp[1]);
864 setdefout(gv); /* locally select filehandle so $% et al work */
896 SV *tmpsv = sv_newmortal();
897 gv_efullname3(tmpsv, fgv, Nullch);
898 DIE("Undefined format \"%s\" called",SvPVX(tmpsv));
900 DIE("Not a format reference");
903 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
905 IoFLAGS(io) &= ~IOf_DIDTOP;
906 return doform(cv,gv,op->op_next);
912 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
913 register IO *io = GvIOp(gv);
914 PerlIO *ofp = IoOFP(io);
918 register CONTEXT *cx;
920 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
921 (long)IoLINES_LEFT(io), (long)FmLINES(formtarget)));
922 if (IoLINES_LEFT(io) < FmLINES(formtarget) &&
923 formtarget != toptarget)
931 if (!IoTOP_NAME(io)) {
933 IoFMT_NAME(io) = savepv(GvNAME(gv));
934 sprintf(tmpbuf, "%s_TOP", IoFMT_NAME(io));
935 topgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVFM);
936 if ((topgv && GvFORM(topgv)) ||
937 !gv_fetchpv("top",FALSE,SVt_PVFM))
938 IoTOP_NAME(io) = savepv(tmpbuf);
940 IoTOP_NAME(io) = savepv("top");
942 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
943 if (!topgv || !GvFORM(topgv)) {
944 IoLINES_LEFT(io) = 100000000;
947 IoTOP_GV(io) = topgv;
949 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
950 I32 lines = IoLINES_LEFT(io);
951 char *s = SvPVX(formtarget);
952 if (lines <= 0) /* Yow, header didn't even fit!!! */
954 while (lines-- > 0) {
961 PerlIO_write(ofp, SvPVX(formtarget), s - SvPVX(formtarget));
962 sv_chop(formtarget, s);
963 FmLINES(formtarget) -= IoLINES_LEFT(io);
966 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
967 PerlIO_write(ofp, SvPVX(formfeed), SvCUR(formfeed));
968 IoLINES_LEFT(io) = IoPAGE_LEN(io);
970 formtarget = toptarget;
971 IoFLAGS(io) |= IOf_DIDTOP;
974 DIE("bad top format reference");
977 SV *tmpsv = sv_newmortal();
978 gv_efullname3(tmpsv, fgv, Nullch);
979 DIE("Undefined top format \"%s\" called",SvPVX(tmpsv));
982 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
983 return doform(cv,gv,op);
995 warn("Filehandle only opened for input");
997 warn("Write on closed filehandle");
1002 if ((IoLINES_LEFT(io) -= FmLINES(formtarget)) < 0) {
1004 warn("page overflow");
1006 if (!PerlIO_write(ofp, SvPVX(formtarget), SvCUR(formtarget)) ||
1010 FmLINES(formtarget) = 0;
1011 SvCUR_set(formtarget, 0);
1012 *SvEND(formtarget) = '\0';
1013 if (IoFLAGS(io) & IOf_FLUSH)
1014 (void)PerlIO_flush(fp);
1018 formtarget = bodytarget;
1020 return pop_return();
1025 dSP; dMARK; dORIGMARK;
1029 SV *sv = NEWSV(0,0);
1031 if (op->op_flags & OPf_STACKED)
1035 if (!(io = GvIO(gv))) {
1037 gv_fullname3(sv, gv, Nullch);
1038 warn("Filehandle %s never opened", SvPV(sv,na));
1040 SETERRNO(EBADF,RMS$_IFI);
1043 else if (!(fp = IoOFP(io))) {
1045 gv_fullname3(sv, gv, Nullch);
1047 warn("Filehandle %s opened only for input", SvPV(sv,na));
1049 warn("printf on closed filehandle %s", SvPV(sv,na));
1051 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1055 #ifdef USE_LOCALE_NUMERIC
1056 if (op->op_private & OPpLOCALE)
1057 SET_NUMERIC_LOCAL();
1059 SET_NUMERIC_STANDARD();
1061 do_sprintf(sv, SP - MARK, MARK + 1);
1062 if (!do_print(sv, fp))
1065 if (IoFLAGS(io) & IOf_FLUSH)
1066 if (PerlIO_flush(fp) == EOF)
1098 tmps = SvPV(sv, len);
1099 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1100 IoLINES(GvIOp(gv)) = 0;
1111 dSP; dMARK; dORIGMARK; dTARGET;
1126 sv_setpvn(bufsv, "", 0);
1127 buffer = SvPV_force(bufsv, blen);
1128 length = SvIVx(*++MARK);
1130 DIE("Negative length");
1133 offset = SvIVx(*++MARK);
1137 if (!io || !IoIFP(io))
1140 if (op->op_type == OP_RECV) {
1141 bufsize = sizeof buf;
1142 buffer = SvGROW(bufsv, length+1);
1143 /* 'offset' means 'flags' here */
1144 length = recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1145 (struct sockaddr *)buf, &bufsize);
1148 SvCUR_set(bufsv, length);
1149 *SvEND(bufsv) = '\0';
1150 (void)SvPOK_only(bufsv);
1152 /* This should not be marked tainted if the fp is marked clean */
1153 if (!(IoFLAGS(io) & IOf_UNTAINT))
1154 SvTAINTED_on(bufsv);
1156 sv_setpvn(TARG, buf, bufsize);
1161 if (op->op_type == OP_RECV)
1162 DIE(no_sock_func, "recv");
1166 DIE("Offset outside string");
1169 bufsize = SvCUR(bufsv);
1170 buffer = SvGROW(bufsv, length+offset+1);
1171 if (offset > bufsize) { /* Zero any newly allocated space */
1172 Zero(buffer+bufsize, offset-bufsize, char);
1174 if (op->op_type == OP_SYSREAD) {
1175 length = read(PerlIO_fileno(IoIFP(io)), buffer+offset, length);
1178 #ifdef HAS_SOCKET__bad_code_maybe
1179 if (IoTYPE(io) == 's') {
1180 bufsize = sizeof buf;
1181 length = recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
1182 (struct sockaddr *)buf, &bufsize);
1186 length = PerlIO_read(IoIFP(io), buffer+offset, length);
1189 SvCUR_set(bufsv, length+offset);
1190 *SvEND(bufsv) = '\0';
1191 (void)SvPOK_only(bufsv);
1193 /* This should not be marked tainted if the fp is marked clean */
1194 if (!(IoFLAGS(io) & IOf_UNTAINT))
1195 SvTAINTED_on(bufsv);
1207 return pp_send(ARGS);
1212 dSP; dMARK; dORIGMARK; dTARGET;
1225 buffer = SvPV(bufsv, blen);
1226 length = SvIVx(*++MARK);
1228 DIE("Negative length");
1231 if (!io || !IoIFP(io)) {
1234 if (op->op_type == OP_SYSWRITE)
1235 warn("Syswrite on closed filehandle");
1237 warn("Send on closed socket");
1240 else if (op->op_type == OP_SYSWRITE) {
1242 offset = SvIVx(*++MARK);
1245 DIE("Offset outside string");
1247 } else if (offset >= blen)
1248 DIE("Offset outside string");
1251 if (length > blen - offset)
1252 length = blen - offset;
1253 length = write(PerlIO_fileno(IoIFP(io)), buffer+offset, length);
1256 else if (SP > MARK) {
1259 sockbuf = SvPVx(*++MARK, mlen);
1260 length = sendto(PerlIO_fileno(IoIFP(io)), buffer, blen, length,
1261 (struct sockaddr *)sockbuf, mlen);
1264 length = send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1267 DIE(no_sock_func, "send");
1282 return pp_sysread(ARGS);
1293 gv = last_in_gv = (GV*)POPs;
1294 PUSHs(!gv || do_eof(gv) ? &sv_yes : &sv_no);
1306 gv = last_in_gv = (GV*)POPs;
1307 PUSHi( do_tell(gv) );
1318 gv = last_in_gv = (GV*)POPs;
1319 PUSHs( do_seek(gv, offset, whence) ? &sv_yes : &sv_no );
1326 Off_t len = (Off_t)POPn;
1331 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
1332 if (op->op_flags & OPf_SPECIAL) {
1333 tmpgv = gv_fetchpv(POPp,FALSE, SVt_PVIO);
1335 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1337 ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1339 my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1345 if (SvTYPE(sv) == SVt_PVGV) {
1346 tmpgv = (GV*)sv; /* *main::FRED for example */
1349 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1350 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
1354 if (truncate (SvPV (sv, na), len) < 0)
1360 if ((tmpfd = open(SvPV (sv, na), O_RDWR)) < 0)
1363 if (my_chsize(tmpfd, len) < 0)
1374 SETERRNO(EBADF,RMS$_IFI);
1377 DIE("truncate not implemented");
1383 return pp_ioctl(ARGS);
1390 unsigned int func = U_I(POPn);
1391 int optype = op->op_type;
1397 if (!io || !argsv || !IoIFP(io)) {
1398 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
1402 if (SvPOK(argsv) || !SvNIOK(argsv)) {
1404 s = SvPV_force(argsv, len);
1405 retval = IOCPARM_LEN(func);
1407 s = Sv_Grow(argsv, retval+1);
1408 SvCUR_set(argsv, retval);
1411 s[SvCUR(argsv)] = 17; /* a little sanity check here */
1414 retval = SvIV(argsv);
1416 s = (char*)(long)retval; /* ouch */
1418 s = (char*)retval; /* ouch */
1422 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1424 if (optype == OP_IOCTL)
1426 retval = ioctl(PerlIO_fileno(IoIFP(io)), func, s);
1428 DIE("ioctl is not implemented");
1432 #if defined(OS2) && defined(__EMX__)
1433 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
1435 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
1438 DIE("fcntl is not implemented");
1442 if (s[SvCUR(argsv)] != 17)
1443 DIE("Possible memory corruption: %s overflowed 3rd argument",
1445 s[SvCUR(argsv)] = 0; /* put our null back */
1446 SvSETMAGIC(argsv); /* Assume it has changed */
1455 PUSHp("0 but true", 10);
1475 fp = IoIFP(GvIOp(gv));
1479 value = (I32)(FLOCK(PerlIO_fileno(fp), argtype) >= 0);
1486 DIE(no_func, "flock()");
1498 int protocol = POPi;
1506 SETERRNO(EBADF,LIB$_INVARG);
1512 do_close(gv, FALSE);
1514 TAINT_PROPER("socket");
1515 fd = socket(domain, type, protocol);
1518 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
1519 IoOFP(io) = PerlIO_fdopen(fd, "w");
1521 if (!IoIFP(io) || !IoOFP(io)) {
1522 if (IoIFP(io)) PerlIO_close(IoIFP(io));
1523 if (IoOFP(io)) PerlIO_close(IoOFP(io));
1524 if (!IoIFP(io) && !IoOFP(io)) close(fd);
1530 DIE(no_sock_func, "socket");
1537 #ifdef HAS_SOCKETPAIR
1542 int protocol = POPi;
1555 do_close(gv1, FALSE);
1557 do_close(gv2, FALSE);
1559 TAINT_PROPER("socketpair");
1560 if (socketpair(domain, type, protocol, fd) < 0)
1562 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
1563 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
1565 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
1566 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
1568 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
1569 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
1570 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
1571 if (!IoIFP(io1) && !IoOFP(io1)) close(fd[0]);
1572 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
1573 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
1574 if (!IoIFP(io2) && !IoOFP(io2)) close(fd[1]);
1580 DIE(no_sock_func, "socketpair");
1591 register IO *io = GvIOn(gv);
1594 if (!io || !IoIFP(io))
1597 addr = SvPV(addrsv, len);
1598 TAINT_PROPER("bind");
1599 if (bind(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1606 warn("bind() on closed fd");
1607 SETERRNO(EBADF,SS$_IVCHAN);
1610 DIE(no_sock_func, "bind");
1621 register IO *io = GvIOn(gv);
1624 if (!io || !IoIFP(io))
1627 addr = SvPV(addrsv, len);
1628 TAINT_PROPER("connect");
1629 if (connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1636 warn("connect() on closed fd");
1637 SETERRNO(EBADF,SS$_IVCHAN);
1640 DIE(no_sock_func, "connect");
1650 register IO *io = GvIOn(gv);
1652 if (!io || !IoIFP(io))
1655 if (listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
1662 warn("listen() on closed fd");
1663 SETERRNO(EBADF,SS$_IVCHAN);
1666 DIE(no_sock_func, "listen");
1678 struct sockaddr saddr; /* use a struct to avoid alignment problems */
1679 int len = sizeof saddr;
1691 if (!gstio || !IoIFP(gstio))
1696 do_close(ngv, FALSE);
1698 fd = accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
1701 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
1702 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
1703 IoTYPE(nstio) = 's';
1704 if (!IoIFP(nstio) || !IoOFP(nstio)) {
1705 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
1706 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
1707 if (!IoIFP(nstio) && !IoOFP(nstio)) close(fd);
1711 PUSHp((char *)&saddr, len);
1716 warn("accept() on closed fd");
1717 SETERRNO(EBADF,SS$_IVCHAN);
1723 DIE(no_sock_func, "accept");
1733 register IO *io = GvIOn(gv);
1735 if (!io || !IoIFP(io))
1738 PUSHi( shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
1743 warn("shutdown() on closed fd");
1744 SETERRNO(EBADF,SS$_IVCHAN);
1747 DIE(no_sock_func, "shutdown");
1754 return pp_ssockopt(ARGS);
1756 DIE(no_sock_func, "getsockopt");
1764 int optype = op->op_type;
1767 unsigned int optname;
1773 if (optype == OP_GSOCKOPT)
1774 sv = sv_2mortal(NEWSV(22, 257));
1777 optname = (unsigned int) POPi;
1778 lvl = (unsigned int) POPi;
1782 if (!io || !IoIFP(io))
1785 fd = PerlIO_fileno(IoIFP(io));
1789 (void)SvPOK_only(sv);
1793 if (getsockopt(fd, lvl, optname, SvPVX(sv), &aint) < 0)
1803 buf = SvPV(sv, len);
1804 else if (SvOK(sv)) {
1805 aint = (int)SvIV(sv);
1809 if (setsockopt(fd, lvl, optname, buf, (int)len) < 0)
1819 warn("[gs]etsockopt() on closed fd");
1820 SETERRNO(EBADF,SS$_IVCHAN);
1825 DIE(no_sock_func, "setsockopt");
1832 return pp_getpeername(ARGS);
1834 DIE(no_sock_func, "getsockname");
1842 int optype = op->op_type;
1846 register IO *io = GvIOn(gv);
1849 if (!io || !IoIFP(io))
1852 sv = sv_2mortal(NEWSV(22, 257));
1853 (void)SvPOK_only(sv);
1857 fd = PerlIO_fileno(IoIFP(io));
1859 case OP_GETSOCKNAME:
1860 if (getsockname(fd, (struct sockaddr *)SvPVX(sv), &aint) < 0)
1863 case OP_GETPEERNAME:
1864 if (getpeername(fd, (struct sockaddr *)SvPVX(sv), &aint) < 0)
1868 #ifdef BOGUS_GETNAME_RETURN
1869 /* Interactive Unix, getpeername() and getsockname()
1870 does not return valid namelen */
1871 if (aint == BOGUS_GETNAME_RETURN)
1872 aint = sizeof(struct sockaddr);
1881 warn("get{sock, peer}name() on closed fd");
1882 SETERRNO(EBADF,SS$_IVCHAN);
1887 DIE(no_sock_func, "getpeername");
1895 return pp_stat(ARGS);
1904 if (op->op_flags & OPf_REF) {
1905 tmpgv = cGVOP->op_gv;
1907 if (tmpgv != defgv) {
1908 laststype = OP_STAT;
1910 sv_setpv(statname, "");
1911 laststatval = (GvIO(tmpgv) && IoIFP(GvIOp(tmpgv))
1912 ? Fstat(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), &statcache) : -1);
1914 if (laststatval < 0)
1919 if (SvTYPE(sv) == SVt_PVGV) {
1923 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1924 tmpgv = (GV*)SvRV(sv);
1927 sv_setpv(statname, SvPV(sv,na));
1930 laststype = op->op_type;
1931 if (op->op_type == OP_LSTAT)
1932 laststatval = lstat(SvPV(statname, na), &statcache);
1935 laststatval = Stat(SvPV(statname, na), &statcache);
1936 if (laststatval < 0) {
1937 if (dowarn && strchr(SvPV(statname, na), '\n'))
1938 warn(warn_nl, "stat");
1943 if (GIMME != G_ARRAY) {
1954 PUSHs(sv_2mortal(newSViv((I32)statcache.st_dev)));
1955 PUSHs(sv_2mortal(newSViv((I32)statcache.st_ino)));
1956 PUSHs(sv_2mortal(newSViv((I32)statcache.st_mode)));
1957 PUSHs(sv_2mortal(newSViv((I32)statcache.st_nlink)));
1958 PUSHs(sv_2mortal(newSViv((I32)statcache.st_uid)));
1959 PUSHs(sv_2mortal(newSViv((I32)statcache.st_gid)));
1960 #ifdef USE_STAT_RDEV
1961 PUSHs(sv_2mortal(newSViv((I32)statcache.st_rdev)));
1963 PUSHs(sv_2mortal(newSVpv("", 0)));
1965 PUSHs(sv_2mortal(newSViv((I32)statcache.st_size)));
1967 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_atime)));
1968 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_mtime)));
1969 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_ctime)));
1971 PUSHs(sv_2mortal(newSViv((I32)statcache.st_atime)));
1972 PUSHs(sv_2mortal(newSViv((I32)statcache.st_mtime)));
1973 PUSHs(sv_2mortal(newSViv((I32)statcache.st_ctime)));
1975 #ifdef USE_STAT_BLOCKS
1976 PUSHs(sv_2mortal(newSViv((I32)statcache.st_blksize)));
1977 PUSHs(sv_2mortal(newSViv((I32)statcache.st_blocks)));
1979 PUSHs(sv_2mortal(newSVpv("", 0)));
1980 PUSHs(sv_2mortal(newSVpv("", 0)));
1988 I32 result = my_stat(ARGS);
1992 if (cando(S_IRUSR, 0, &statcache))
1999 I32 result = my_stat(ARGS);
2003 if (cando(S_IWUSR, 0, &statcache))
2010 I32 result = my_stat(ARGS);
2014 if (cando(S_IXUSR, 0, &statcache))
2021 I32 result = my_stat(ARGS);
2025 if (cando(S_IRUSR, 1, &statcache))
2032 I32 result = my_stat(ARGS);
2036 if (cando(S_IWUSR, 1, &statcache))
2043 I32 result = my_stat(ARGS);
2047 if (cando(S_IXUSR, 1, &statcache))
2054 I32 result = my_stat(ARGS);
2063 return pp_ftrowned(ARGS);
2068 I32 result = my_stat(ARGS);
2072 if (statcache.st_uid == (op->op_type == OP_FTEOWNED ? euid : uid) )
2079 I32 result = my_stat(ARGS);
2083 if (!statcache.st_size)
2090 I32 result = my_stat(ARGS);
2094 PUSHi(statcache.st_size);
2100 I32 result = my_stat(ARGS);
2104 PUSHn( ((I32)basetime - (I32)statcache.st_mtime) / 86400.0 );
2110 I32 result = my_stat(ARGS);
2114 PUSHn( ((I32)basetime - (I32)statcache.st_atime) / 86400.0 );
2120 I32 result = my_stat(ARGS);
2124 PUSHn( ((I32)basetime - (I32)statcache.st_ctime) / 86400.0 );
2130 I32 result = my_stat(ARGS);
2134 if (S_ISSOCK(statcache.st_mode))
2141 I32 result = my_stat(ARGS);
2145 if (S_ISCHR(statcache.st_mode))
2152 I32 result = my_stat(ARGS);
2156 if (S_ISBLK(statcache.st_mode))
2163 I32 result = my_stat(ARGS);
2167 if (S_ISREG(statcache.st_mode))
2174 I32 result = my_stat(ARGS);
2178 if (S_ISDIR(statcache.st_mode))
2185 I32 result = my_stat(ARGS);
2189 if (S_ISFIFO(statcache.st_mode))
2196 I32 result = my_lstat(ARGS);
2200 if (S_ISLNK(statcache.st_mode))
2209 I32 result = my_stat(ARGS);
2213 if (statcache.st_mode & S_ISUID)
2223 I32 result = my_stat(ARGS);
2227 if (statcache.st_mode & S_ISGID)
2237 I32 result = my_stat(ARGS);
2241 if (statcache.st_mode & S_ISVTX)
2253 if (op->op_flags & OPf_REF) {
2258 gv = gv_fetchpv(tmps = POPp, FALSE, SVt_PVIO);
2259 if (GvIO(gv) && IoIFP(GvIOp(gv)))
2260 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
2261 else if (isDIGIT(*tmps))
2270 #if defined(atarist) /* this will work with atariST. Configure will
2271 make guesses for other systems. */
2272 # define FILE_base(f) ((f)->_base)
2273 # define FILE_ptr(f) ((f)->_ptr)
2274 # define FILE_cnt(f) ((f)->_cnt)
2275 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
2285 register STDCHAR *s;
2290 if (op->op_flags & OPf_REF)
2292 else if (isGV(TOPs))
2294 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2295 gv = (GV*)SvRV(POPs);
2306 goto really_filename;
2312 sv_setpv(statname, "");
2315 if (io && IoIFP(io)) {
2316 if (! PerlIO_has_base(IoIFP(io)))
2317 DIE("-T and -B not implemented on filehandles");
2318 laststatval = Fstat(PerlIO_fileno(IoIFP(io)), &statcache);
2319 if (laststatval < 0)
2321 if (S_ISDIR(statcache.st_mode)) /* handle NFS glitch */
2322 if (op->op_type == OP_FTTEXT)
2326 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
2327 i = PerlIO_getc(IoIFP(io));
2329 (void)PerlIO_ungetc(IoIFP(io),i);
2331 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
2333 len = PerlIO_get_bufsiz(IoIFP(io));
2334 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
2335 /* sfio can have large buffers - limit to 512 */
2341 warn("Test on unopened file <%s>",
2342 GvENAME(cGVOP->op_gv));
2343 SETERRNO(EBADF,RMS$_IFI);
2352 sv_setpv(statname, SvPV(sv, na));
2354 i = open(SvPV(sv, na), O_RDONLY, 0);
2356 i = open(SvPV(sv, na), 0);
2359 if (dowarn && strchr(SvPV(sv, na), '\n'))
2360 warn(warn_nl, "open");
2363 laststatval = Fstat(i, &statcache);
2364 if (laststatval < 0)
2366 len = read(i, tbuf, 512);
2369 if (S_ISDIR(statcache.st_mode) && op->op_type == OP_FTTEXT)
2370 RETPUSHNO; /* special case NFS directories */
2371 RETPUSHYES; /* null file is anything */
2376 /* now scan s to look for textiness */
2377 /* XXX ASCII dependent code */
2379 for (i = 0; i < len; i++, s++) {
2380 if (!*s) { /* null never allowed in text */
2387 *s != '\n' && *s != '\r' && *s != '\b' &&
2388 *s != '\t' && *s != '\f' && *s != 27)
2392 if ((odd * 3 > len) == (op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
2400 return pp_fttext(ARGS);
2415 if (!tmps || !*tmps) {
2416 svp = hv_fetch(GvHVn(envgv), "HOME", 4, FALSE);
2418 tmps = SvPV(*svp, na);
2420 if (!tmps || !*tmps) {
2421 svp = hv_fetch(GvHVn(envgv), "LOGDIR", 6, FALSE);
2423 tmps = SvPV(*svp, na);
2425 TAINT_PROPER("chdir");
2426 PUSHi( chdir(tmps) >= 0 );
2428 /* Clear the DEFAULT element of ENV so we'll get the new value
2430 hv_delete(GvHVn(envgv),"DEFAULT",7,G_DISCARD);
2437 dSP; dMARK; dTARGET;
2440 value = (I32)apply(op->op_type, MARK, SP);
2445 DIE(no_func, "Unsupported function chown");
2455 TAINT_PROPER("chroot");
2456 PUSHi( chroot(tmps) >= 0 );
2459 DIE(no_func, "chroot");
2465 dSP; dMARK; dTARGET;
2467 value = (I32)apply(op->op_type, MARK, SP);
2475 dSP; dMARK; dTARGET;
2477 value = (I32)apply(op->op_type, MARK, SP);
2485 dSP; dMARK; dTARGET;
2487 value = (I32)apply(op->op_type, MARK, SP);
2499 char *tmps = SvPV(TOPs, na);
2500 TAINT_PROPER("rename");
2502 anum = rename(tmps, tmps2);
2504 if (!(anum = Stat(tmps, &statbuf))) {
2505 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
2508 if (euid || Stat(tmps2, &statbuf) < 0 || !S_ISDIR(statbuf.st_mode))
2509 (void)UNLINK(tmps2);
2510 if (!(anum = link(tmps, tmps2)))
2511 anum = UNLINK(tmps);
2524 char *tmps = SvPV(TOPs, na);
2525 TAINT_PROPER("link");
2526 SETi( link(tmps, tmps2) >= 0 );
2528 DIE(no_func, "Unsupported function link");
2538 char *tmps = SvPV(TOPs, na);
2539 TAINT_PROPER("symlink");
2540 SETi( symlink(tmps, tmps2) >= 0 );
2543 DIE(no_func, "symlink");
2554 len = readlink(tmps, buf, sizeof buf);
2562 RETSETUNDEF; /* just pretend it's a normal file */
2566 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
2568 dooneliner(cmd, filename)
2574 *save_filename = filename;
2580 for (s = mybuf+strlen(mybuf); *filename; ) {
2585 myfp = my_popen(mybuf, "r");
2588 /* Need to save/restore 'rs' ?? */
2589 s = sv_gets(tmpsv, myfp, 0);
2590 (void)my_pclose(myfp);
2592 for (errno = 1; errno < sys_nerr; errno++) {
2593 #ifdef HAS_SYS_ERRLIST
2594 if (instr(mybuf, sys_errlist[errno])) /* you don't see this */
2597 char *errmsg; /* especially if it isn't there */
2600 (errmsg = strerror(errno)) ? errmsg : "NoErRoR"))
2606 #define EACCES EPERM
2608 if (instr(mybuf, "cannot make"))
2609 SETERRNO(EEXIST,RMS$_FEX);
2610 else if (instr(mybuf, "existing file"))
2611 SETERRNO(EEXIST,RMS$_FEX);
2612 else if (instr(mybuf, "ile exists"))
2613 SETERRNO(EEXIST,RMS$_FEX);
2614 else if (instr(mybuf, "non-exist"))
2615 SETERRNO(ENOENT,RMS$_FNF);
2616 else if (instr(mybuf, "does not exist"))
2617 SETERRNO(ENOENT,RMS$_FNF);
2618 else if (instr(mybuf, "not empty"))
2619 SETERRNO(EBUSY,SS$_DEVOFFLINE);
2620 else if (instr(mybuf, "cannot access"))
2621 SETERRNO(EACCES,RMS$_PRV);
2623 SETERRNO(EPERM,RMS$_PRV);
2626 else { /* some mkdirs return no failure indication */
2627 anum = (Stat(save_filename, &statbuf) >= 0);
2628 if (op->op_type == OP_RMDIR)
2633 SETERRNO(EACCES,RMS$_PRV); /* a guess */
2649 char *tmps = SvPV(TOPs, na);
2651 TAINT_PROPER("mkdir");
2653 SETi( mkdir(tmps, mode) >= 0 );
2655 SETi( dooneliner("mkdir", tmps) );
2656 oldumask = umask(0);
2658 chmod(tmps, (mode & ~oldumask) & 0777);
2669 TAINT_PROPER("rmdir");
2671 XPUSHi( rmdir(tmps) >= 0 );
2673 XPUSHi( dooneliner("rmdir", tmps) );
2678 /* Directory calls. */
2683 #if defined(Direntry_t) && defined(HAS_READDIR)
2684 char *dirname = POPp;
2686 register IO *io = GvIOn(gv);
2692 closedir(IoDIRP(io));
2693 if (!(IoDIRP(io) = opendir(dirname)))
2699 SETERRNO(EBADF,RMS$_DIR);
2702 DIE(no_dir_func, "opendir");
2709 #if defined(Direntry_t) && defined(HAS_READDIR)
2711 Direntry_t *readdir _((DIR *));
2713 register Direntry_t *dp;
2715 register IO *io = GvIOn(gv);
2717 if (!io || !IoDIRP(io))
2720 if (GIMME == G_ARRAY) {
2722 while (dp = (Direntry_t *)readdir(IoDIRP(io))) {
2724 XPUSHs(sv_2mortal(newSVpv(dp->d_name, dp->d_namlen)));
2726 XPUSHs(sv_2mortal(newSVpv(dp->d_name, 0)));
2731 if (!(dp = (Direntry_t *)readdir(IoDIRP(io))))
2734 XPUSHs(sv_2mortal(newSVpv(dp->d_name, dp->d_namlen)));
2736 XPUSHs(sv_2mortal(newSVpv(dp->d_name, 0)));
2743 SETERRNO(EBADF,RMS$_ISI);
2744 if (GIMME == G_ARRAY)
2749 DIE(no_dir_func, "readdir");
2756 #if defined(HAS_TELLDIR) || defined(telldir)
2757 #if !defined(telldir) && !defined(HAS_TELLDIR_PROTOTYPE)
2758 long telldir _((DIR *));
2761 register IO *io = GvIOn(gv);
2763 if (!io || !IoDIRP(io))
2766 PUSHi( telldir(IoDIRP(io)) );
2770 SETERRNO(EBADF,RMS$_ISI);
2773 DIE(no_dir_func, "telldir");
2780 #if defined(HAS_SEEKDIR) || defined(seekdir)
2783 register IO *io = GvIOn(gv);
2785 if (!io || !IoDIRP(io))
2788 (void)seekdir(IoDIRP(io), along);
2793 SETERRNO(EBADF,RMS$_ISI);
2796 DIE(no_dir_func, "seekdir");
2803 #if defined(HAS_REWINDDIR) || defined(rewinddir)
2805 register IO *io = GvIOn(gv);
2807 if (!io || !IoDIRP(io))
2810 (void)rewinddir(IoDIRP(io));
2814 SETERRNO(EBADF,RMS$_ISI);
2817 DIE(no_dir_func, "rewinddir");
2824 #if defined(Direntry_t) && defined(HAS_READDIR)
2826 register IO *io = GvIOn(gv);
2828 if (!io || !IoDIRP(io))
2831 #ifdef VOID_CLOSEDIR
2832 closedir(IoDIRP(io));
2834 if (closedir(IoDIRP(io)) < 0) {
2835 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
2844 SETERRNO(EBADF,RMS$_IFI);
2847 DIE(no_dir_func, "closedir");
2851 /* Process control. */
2866 if (tmpgv = gv_fetchpv("$", TRUE, SVt_PV))
2867 sv_setiv(GvSV(tmpgv), (I32)getpid());
2868 hv_clear(pidstatus); /* no kids, so don't wait for 'em */
2873 DIE(no_func, "Unsupported function fork");
2879 #if !defined(DOSISH) || defined(OS2)
2884 childpid = wait4pid(-1, &argflags, 0);
2885 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
2889 DIE(no_func, "Unsupported function wait");
2895 #if !defined(DOSISH) || defined(OS2)
2903 childpid = wait4pid(childpid, &argflags, optype);
2904 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
2908 DIE(no_func, "Unsupported function wait");
2914 dSP; dMARK; dORIGMARK; dTARGET;
2919 Sigsave_t ihand,qhand; /* place to save signals during system() */
2921 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2)
2922 if (SP - MARK == 1) {
2924 char *junk = SvPV(TOPs, na);
2926 TAINT_PROPER("system");
2929 while ((childpid = vfork()) == -1) {
2930 if (errno != EAGAIN) {
2939 rsignal_save(SIGINT, SIG_IGN, &ihand);
2940 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
2942 result = wait4pid(childpid, &status, 0);
2943 } while (result == -1 && errno == EINTR);
2944 (void)rsignal_restore(SIGINT, &ihand);
2945 (void)rsignal_restore(SIGQUIT, &qhand);
2946 STATUS_NATIVE_SET(result == -1 ? -1 : status);
2947 do_execfree(); /* free any memory child malloced on vfork */
2949 PUSHi(STATUS_POSIX);
2952 if (op->op_flags & OPf_STACKED) {
2953 SV *really = *++MARK;
2954 value = (I32)do_aexec(really, MARK, SP);
2956 else if (SP - MARK != 1)
2957 value = (I32)do_aexec(Nullsv, MARK, SP);
2959 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), na));
2962 #else /* ! FORK or VMS or OS/2 */
2963 if (op->op_flags & OPf_STACKED) {
2964 SV *really = *++MARK;
2965 value = (I32)do_aspawn(really, MARK, SP);
2967 else if (SP - MARK != 1)
2968 value = (I32)do_aspawn(Nullsv, MARK, SP);
2970 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), na));
2972 STATUS_NATIVE_SET(value);
2975 PUSHi(STATUS_POSIX);
2976 #endif /* !FORK or VMS */
2982 dSP; dMARK; dORIGMARK; dTARGET;
2985 if (op->op_flags & OPf_STACKED) {
2986 SV *really = *++MARK;
2987 value = (I32)do_aexec(really, MARK, SP);
2989 else if (SP - MARK != 1)
2991 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
2993 value = (I32)do_aexec(Nullsv, MARK, SP);
2997 char *junk = SvPV(*SP, na);
2999 TAINT_PROPER("exec");
3002 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), na));
3004 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), na));
3014 dSP; dMARK; dTARGET;
3017 value = (I32)apply(op->op_type, MARK, SP);
3022 DIE(no_func, "Unsupported function kill");
3030 XPUSHi( getppid() );
3033 DIE(no_func, "getppid");
3049 value = (I32)BSD_GETPGRP(pid);
3051 if (pid != 0 && pid != getpid()) {
3052 DIE("POSIX getpgrp can't take an argument");
3053 value = (I32)getpgrp();
3058 DIE(no_func, "getpgrp()");
3077 TAINT_PROPER("setpgrp");
3079 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
3081 if ((pgrp != 0 && pgrp != getpid())) || (pid != 0 && pid != getpid())) {
3082 DIE("POSIX setpgrp can't take an argument");
3084 SETi( setpgrp() >= 0 );
3085 #endif /* USE_BSDPGRP */
3088 DIE(no_func, "setpgrp()");
3097 #ifdef HAS_GETPRIORITY
3100 SETi( getpriority(which, who) );
3103 DIE(no_func, "getpriority()");
3113 #ifdef HAS_SETPRIORITY
3117 TAINT_PROPER("setpriority");
3118 SETi( setpriority(which, who, niceval) >= 0 );
3121 DIE(no_func, "setpriority()");
3131 XPUSHn( time(Null(Time_t*)) );
3133 XPUSHi( time(Null(Time_t*)) );
3138 /* XXX The POSIX name is CLK_TCK; it is to be preferred
3139 to HZ. Probably. For now, assume that if the system
3140 defines HZ, it does so correctly. (Will this break
3142 Probably we ought to use _sysconf(_SC_CLK_TCK), if
3143 it's supported. --AD 9/96.
3159 DIE("times not implemented");
3164 (void)times(×buf);
3166 (void)times((tbuffer_t *)×buf); /* time.h uses different name for */
3167 /* struct tms, though same data */
3171 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_utime)/HZ)));
3172 if (GIMME == G_ARRAY) {
3173 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_stime)/HZ)));
3174 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_cutime)/HZ)));
3175 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_cstime)/HZ)));
3178 #endif /* HAS_TIMES */
3183 return pp_gmtime(ARGS);
3191 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
3192 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
3193 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
3199 when = (Time_t)SvNVx(POPs);
3201 when = (Time_t)SvIVx(POPs);
3204 if (op->op_type == OP_LOCALTIME)
3205 tmbuf = localtime(&when);
3207 tmbuf = gmtime(&when);
3211 if (GIMME != G_ARRAY) {
3216 sprintf(mybuf, "%s %s %2d %02d:%02d:%02d %d",
3217 dayname[tmbuf->tm_wday],
3218 monname[tmbuf->tm_mon],
3223 tmbuf->tm_year + 1900);
3224 PUSHp(mybuf, strlen(mybuf));
3227 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_sec)));
3228 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_min)));
3229 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_hour)));
3230 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mday)));
3231 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mon)));
3232 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_year)));
3233 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_wday)));
3234 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_yday)));
3235 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_isdst)));
3246 anum = alarm((unsigned int)anum);
3253 DIE(no_func, "Unsupported function alarm");
3264 (void)time(&lasttime);
3269 sleep((unsigned int)duration);
3272 XPUSHi(when - lasttime);
3276 /* Shared memory. */
3280 return pp_semget(ARGS);
3285 return pp_semctl(ARGS);
3290 return pp_shmwrite(ARGS);
3295 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3296 dSP; dMARK; dTARGET;
3297 I32 value = (I32)(do_shmio(op->op_type, MARK, SP) >= 0);
3302 return pp_semget(ARGS);
3306 /* Message passing. */
3310 return pp_semget(ARGS);
3315 return pp_semctl(ARGS);
3320 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3321 dSP; dMARK; dTARGET;
3322 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
3327 return pp_semget(ARGS);
3333 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3334 dSP; dMARK; dTARGET;
3335 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
3340 return pp_semget(ARGS);
3348 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3349 dSP; dMARK; dTARGET;
3350 int anum = do_ipcget(op->op_type, MARK, SP);
3357 DIE("System V IPC is not implemented on this machine");
3363 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3364 dSP; dMARK; dTARGET;
3365 int anum = do_ipcctl(op->op_type, MARK, SP);
3373 PUSHp("0 but true",10);
3377 return pp_semget(ARGS);
3383 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3384 dSP; dMARK; dTARGET;
3385 I32 value = (I32)(do_semop(MARK, SP) >= 0);
3390 return pp_semget(ARGS);
3394 /* Get system info. */
3399 return pp_ghostent(ARGS);
3401 DIE(no_sock_func, "gethostbyname");
3408 return pp_ghostent(ARGS);
3410 DIE(no_sock_func, "gethostbyaddr");
3418 I32 which = op->op_type;
3419 register char **elem;
3421 struct hostent *gethostbyname();
3422 struct hostent *gethostbyaddr();
3423 #ifdef HAS_GETHOSTENT
3424 struct hostent *gethostent();
3426 struct hostent *hent;
3430 if (which == OP_GHBYNAME) {
3431 hent = gethostbyname(POPp);
3433 else if (which == OP_GHBYADDR) {
3434 int addrtype = POPi;
3437 char *addr = SvPV(addrsv, addrlen);
3439 hent = gethostbyaddr(addr, addrlen, addrtype);
3442 #ifdef HAS_GETHOSTENT
3443 hent = gethostent();
3445 DIE("gethostent not implemented");
3448 #ifdef HOST_NOT_FOUND
3450 STATUS_NATIVE_SET(h_errno);
3453 if (GIMME != G_ARRAY) {
3454 PUSHs(sv = sv_newmortal());
3456 if (which == OP_GHBYNAME) {
3458 sv_setpvn(sv, hent->h_addr, hent->h_length);
3461 sv_setpv(sv, (char*)hent->h_name);
3467 PUSHs(sv = sv_mortalcopy(&sv_no));
3468 sv_setpv(sv, (char*)hent->h_name);
3469 PUSHs(sv = sv_mortalcopy(&sv_no));
3470 for (elem = hent->h_aliases; elem && *elem; elem++) {
3471 sv_catpv(sv, *elem);
3473 sv_catpvn(sv, " ", 1);
3475 PUSHs(sv = sv_mortalcopy(&sv_no));
3476 sv_setiv(sv, (I32)hent->h_addrtype);
3477 PUSHs(sv = sv_mortalcopy(&sv_no));
3478 len = hent->h_length;
3479 sv_setiv(sv, (I32)len);
3481 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3482 XPUSHs(sv = sv_mortalcopy(&sv_no));
3483 sv_setpvn(sv, *elem, len);
3486 PUSHs(sv = sv_mortalcopy(&sv_no));
3488 sv_setpvn(sv, hent->h_addr, len);
3493 DIE(no_sock_func, "gethostent");
3500 return pp_gnetent(ARGS);
3502 DIE(no_sock_func, "getnetbyname");
3509 return pp_gnetent(ARGS);
3511 DIE(no_sock_func, "getnetbyaddr");
3519 I32 which = op->op_type;
3520 register char **elem;
3522 struct netent *getnetbyname();
3523 struct netent *getnetbyaddr();
3524 struct netent *getnetent();
3525 struct netent *nent;
3527 if (which == OP_GNBYNAME)
3528 nent = getnetbyname(POPp);
3529 else if (which == OP_GNBYADDR) {
3530 int addrtype = POPi;
3531 unsigned long addr = U_L(POPn);
3532 nent = getnetbyaddr((long)addr, addrtype);
3538 if (GIMME != G_ARRAY) {
3539 PUSHs(sv = sv_newmortal());
3541 if (which == OP_GNBYNAME)
3542 sv_setiv(sv, (I32)nent->n_net);
3544 sv_setpv(sv, nent->n_name);
3550 PUSHs(sv = sv_mortalcopy(&sv_no));
3551 sv_setpv(sv, nent->n_name);
3552 PUSHs(sv = sv_mortalcopy(&sv_no));
3553 for (elem = nent->n_aliases; *elem; elem++) {
3554 sv_catpv(sv, *elem);
3556 sv_catpvn(sv, " ", 1);
3558 PUSHs(sv = sv_mortalcopy(&sv_no));
3559 sv_setiv(sv, (I32)nent->n_addrtype);
3560 PUSHs(sv = sv_mortalcopy(&sv_no));
3561 sv_setiv(sv, (I32)nent->n_net);
3566 DIE(no_sock_func, "getnetent");
3573 return pp_gprotoent(ARGS);
3575 DIE(no_sock_func, "getprotobyname");
3582 return pp_gprotoent(ARGS);
3584 DIE(no_sock_func, "getprotobynumber");
3592 I32 which = op->op_type;
3593 register char **elem;
3595 struct protoent *getprotobyname();
3596 struct protoent *getprotobynumber();
3597 struct protoent *getprotoent();
3598 struct protoent *pent;
3600 if (which == OP_GPBYNAME)
3601 pent = getprotobyname(POPp);
3602 else if (which == OP_GPBYNUMBER)
3603 pent = getprotobynumber(POPi);
3605 pent = getprotoent();
3608 if (GIMME != G_ARRAY) {
3609 PUSHs(sv = sv_newmortal());
3611 if (which == OP_GPBYNAME)
3612 sv_setiv(sv, (I32)pent->p_proto);
3614 sv_setpv(sv, pent->p_name);
3620 PUSHs(sv = sv_mortalcopy(&sv_no));
3621 sv_setpv(sv, pent->p_name);
3622 PUSHs(sv = sv_mortalcopy(&sv_no));
3623 for (elem = pent->p_aliases; *elem; elem++) {
3624 sv_catpv(sv, *elem);
3626 sv_catpvn(sv, " ", 1);
3628 PUSHs(sv = sv_mortalcopy(&sv_no));
3629 sv_setiv(sv, (I32)pent->p_proto);
3634 DIE(no_sock_func, "getprotoent");
3641 return pp_gservent(ARGS);
3643 DIE(no_sock_func, "getservbyname");
3650 return pp_gservent(ARGS);
3652 DIE(no_sock_func, "getservbyport");
3660 I32 which = op->op_type;
3661 register char **elem;
3663 struct servent *getservbyname();
3664 struct servent *getservbynumber();
3665 struct servent *getservent();
3666 struct servent *sent;
3668 if (which == OP_GSBYNAME) {
3672 if (proto && !*proto)
3675 sent = getservbyname(name, proto);
3677 else if (which == OP_GSBYPORT) {
3679 unsigned short port = POPu;
3684 sent = getservbyport(port, proto);
3687 sent = getservent();
3690 if (GIMME != G_ARRAY) {
3691 PUSHs(sv = sv_newmortal());
3693 if (which == OP_GSBYNAME) {
3695 sv_setiv(sv, (I32)ntohs(sent->s_port));
3697 sv_setiv(sv, (I32)(sent->s_port));
3701 sv_setpv(sv, sent->s_name);
3707 PUSHs(sv = sv_mortalcopy(&sv_no));
3708 sv_setpv(sv, sent->s_name);
3709 PUSHs(sv = sv_mortalcopy(&sv_no));
3710 for (elem = sent->s_aliases; *elem; elem++) {
3711 sv_catpv(sv, *elem);
3713 sv_catpvn(sv, " ", 1);
3715 PUSHs(sv = sv_mortalcopy(&sv_no));
3717 sv_setiv(sv, (I32)ntohs(sent->s_port));
3719 sv_setiv(sv, (I32)(sent->s_port));
3721 PUSHs(sv = sv_mortalcopy(&sv_no));
3722 sv_setpv(sv, sent->s_proto);
3727 DIE(no_sock_func, "getservent");
3738 DIE(no_sock_func, "sethostent");
3749 DIE(no_sock_func, "setnetent");
3760 DIE(no_sock_func, "setprotoent");
3771 DIE(no_sock_func, "setservent");
3783 DIE(no_sock_func, "endhostent");
3795 DIE(no_sock_func, "endnetent");
3807 DIE(no_sock_func, "endprotoent");
3819 DIE(no_sock_func, "endservent");
3826 return pp_gpwent(ARGS);
3828 DIE(no_func, "getpwnam");
3835 return pp_gpwent(ARGS);
3837 DIE(no_func, "getpwuid");
3845 I32 which = op->op_type;
3847 struct passwd *pwent;
3849 if (which == OP_GPWNAM)
3850 pwent = getpwnam(POPp);
3851 else if (which == OP_GPWUID)
3852 pwent = getpwuid(POPi);
3854 pwent = (struct passwd *)getpwent();
3857 if (GIMME != G_ARRAY) {
3858 PUSHs(sv = sv_newmortal());
3860 if (which == OP_GPWNAM)
3861 sv_setiv(sv, (I32)pwent->pw_uid);
3863 sv_setpv(sv, pwent->pw_name);
3869 PUSHs(sv = sv_mortalcopy(&sv_no));
3870 sv_setpv(sv, pwent->pw_name);
3871 PUSHs(sv = sv_mortalcopy(&sv_no));
3872 sv_setpv(sv, pwent->pw_passwd);
3873 PUSHs(sv = sv_mortalcopy(&sv_no));
3874 sv_setiv(sv, (I32)pwent->pw_uid);
3875 PUSHs(sv = sv_mortalcopy(&sv_no));
3876 sv_setiv(sv, (I32)pwent->pw_gid);
3877 PUSHs(sv = sv_mortalcopy(&sv_no));
3879 sv_setiv(sv, (I32)pwent->pw_change);
3882 sv_setiv(sv, (I32)pwent->pw_quota);
3885 sv_setpv(sv, pwent->pw_age);
3889 PUSHs(sv = sv_mortalcopy(&sv_no));
3891 sv_setpv(sv, pwent->pw_class);
3894 sv_setpv(sv, pwent->pw_comment);
3897 PUSHs(sv = sv_mortalcopy(&sv_no));
3898 sv_setpv(sv, pwent->pw_gecos);
3899 PUSHs(sv = sv_mortalcopy(&sv_no));
3900 sv_setpv(sv, pwent->pw_dir);
3901 PUSHs(sv = sv_mortalcopy(&sv_no));
3902 sv_setpv(sv, pwent->pw_shell);
3904 PUSHs(sv = sv_mortalcopy(&sv_no));
3905 sv_setiv(sv, (I32)pwent->pw_expire);
3910 DIE(no_func, "getpwent");
3921 DIE(no_func, "setpwent");
3932 DIE(no_func, "endpwent");
3939 return pp_ggrent(ARGS);
3941 DIE(no_func, "getgrnam");
3948 return pp_ggrent(ARGS);
3950 DIE(no_func, "getgrgid");
3958 I32 which = op->op_type;
3959 register char **elem;
3961 struct group *grent;
3963 if (which == OP_GGRNAM)
3964 grent = (struct group *)getgrnam(POPp);
3965 else if (which == OP_GGRGID)
3966 grent = (struct group *)getgrgid(POPi);
3968 grent = (struct group *)getgrent();
3971 if (GIMME != G_ARRAY) {
3972 PUSHs(sv = sv_newmortal());
3974 if (which == OP_GGRNAM)
3975 sv_setiv(sv, (I32)grent->gr_gid);
3977 sv_setpv(sv, grent->gr_name);
3983 PUSHs(sv = sv_mortalcopy(&sv_no));
3984 sv_setpv(sv, grent->gr_name);
3985 PUSHs(sv = sv_mortalcopy(&sv_no));
3986 sv_setpv(sv, grent->gr_passwd);
3987 PUSHs(sv = sv_mortalcopy(&sv_no));
3988 sv_setiv(sv, (I32)grent->gr_gid);
3989 PUSHs(sv = sv_mortalcopy(&sv_no));
3990 for (elem = grent->gr_mem; *elem; elem++) {
3991 sv_catpv(sv, *elem);
3993 sv_catpvn(sv, " ", 1);
3999 DIE(no_func, "getgrent");
4010 DIE(no_func, "setgrent");
4021 DIE(no_func, "endgrent");
4031 if (!(tmps = getlogin()))
4033 PUSHp(tmps, strlen(tmps));
4036 DIE(no_func, "getlogin");
4040 /* Miscellaneous. */
4045 dSP; dMARK; dORIGMARK; dTARGET;
4046 register I32 items = SP - MARK;
4047 unsigned long a[20];
4053 while (++MARK <= SP) {
4054 if (SvTAINTED(*MARK)) {
4060 TAINT_PROPER("syscall");
4063 /* This probably won't work on machines where sizeof(long) != sizeof(int)
4064 * or where sizeof(long) != sizeof(char*). But such machines will
4065 * not likely have syscall implemented either, so who cares?
4067 while (++MARK <= SP) {
4068 if (SvNIOK(*MARK) || !i)
4069 a[i++] = SvIV(*MARK);
4070 else if (*MARK == &sv_undef)
4073 a[i++] = (unsigned long)SvPV_force(*MARK, na);
4079 DIE("Too many args to syscall");
4081 DIE("Too few args to syscall");
4083 retval = syscall(a[0]);
4086 retval = syscall(a[0],a[1]);
4089 retval = syscall(a[0],a[1],a[2]);
4092 retval = syscall(a[0],a[1],a[2],a[3]);
4095 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
4098 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
4101 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
4104 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
4108 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
4111 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
4114 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4118 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4122 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4126 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4127 a[10],a[11],a[12],a[13]);
4129 #endif /* atarist */
4135 DIE(no_func, "syscall");
4139 #ifdef FCNTL_EMULATE_FLOCK
4141 /* XXX Emulate flock() with fcntl().
4142 What's really needed is a good file locking module.
4146 fcntl_emulate_flock(fd, operation)
4152 switch (operation & ~LOCK_NB) {
4154 flock.l_type = F_RDLCK;
4157 flock.l_type = F_WRLCK;
4160 flock.l_type = F_UNLCK;
4166 flock.l_whence = SEEK_SET;
4167 flock.l_start = flock.l_len = 0L;
4169 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
4172 #endif /* FCNTL_EMULATE_FLOCK */
4174 #ifdef LOCKF_EMULATE_FLOCK
4176 /* XXX Emulate flock() with lockf(). This is just to increase
4177 portability of scripts. The calls are not completely
4178 interchangeable. What's really needed is a good file
4182 /* The lockf() constants might have been defined in <unistd.h>.
4183 Unfortunately, <unistd.h> causes troubles on some mixed
4184 (BSD/POSIX) systems, such as SunOS 4.1.3.
4186 Further, the lockf() constants aren't POSIX, so they might not be
4187 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
4188 just stick in the SVID values and be done with it. Sigh.
4192 # define F_ULOCK 0 /* Unlock a previously locked region */
4195 # define F_LOCK 1 /* Lock a region for exclusive use */
4198 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
4201 # define F_TEST 3 /* Test a region for other processes locks */
4205 lockf_emulate_flock (fd, operation)
4210 switch (operation) {
4212 /* LOCK_SH - get a shared lock */
4214 /* LOCK_EX - get an exclusive lock */
4216 i = lockf (fd, F_LOCK, 0);
4219 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
4220 case LOCK_SH|LOCK_NB:
4221 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
4222 case LOCK_EX|LOCK_NB:
4223 i = lockf (fd, F_TLOCK, 0);
4225 if ((errno == EAGAIN) || (errno == EACCES))
4226 errno = EWOULDBLOCK;
4229 /* LOCK_UN - unlock (non-blocking is a no-op) */
4231 case LOCK_UN|LOCK_NB:
4232 i = lockf (fd, F_ULOCK, 0);
4235 /* Default - can't decipher operation */
4244 #endif /* LOCKF_EMULATE_FLOCK */