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. */
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));
82 # include <sys/utime.h>
94 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
95 static int dooneliner _((char *cmd, char *filename));
99 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
102 # define my_chsize chsize
107 #else /* no flock() */
109 /* fcntl.h might not have been included, even if it exists, because
110 the current Configure only sets I_FCNTL if it's needed to pick up
111 the *_OK constants. Make sure it has been included before testing
112 the fcntl() locking constants. */
113 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
117 # if defined(HAS_FCNTL) && defined(F_SETLK) && defined (F_SETLKW)
118 # define FLOCK fcntl_emulate_flock
119 # define FCNTL_EMULATE_FLOCK
120 # else /* no flock() or fcntl(F_SETLK,...) */
122 # define FLOCK lockf_emulate_flock
123 # define LOCKF_EMULATE_FLOCK
125 # endif /* no flock() or fcntl(F_SETLK,...) */
128 static int FLOCK _((int, int));
131 * These are the flock() constants. Since this sytems doesn't have
132 * flock(), the values of the constants are probably not available.
146 # endif /* emulating flock() */
148 #endif /* no flock() */
159 fp = my_popen(tmps, "r");
161 if (GIMME == G_SCALAR) {
162 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
163 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
174 if (sv_gets(sv, fp, 0) == Nullch) {
178 XPUSHs(sv_2mortal(sv));
179 if (SvLEN(sv) - SvCUR(sv) > 20) {
180 SvLEN_set(sv, SvCUR(sv)+1);
181 Renew(SvPVX(sv), SvLEN(sv), char);
186 STATUS_NATIVE_SET(my_pclose(fp));
187 TAINT; /* "I believe that this is not gratuitous!" */
190 STATUS_NATIVE_SET(-1);
191 if (GIMME == G_SCALAR)
203 SAVESPTR(last_in_gv); /* We don't want this to be permanent. */
204 last_in_gv = (GV*)*stack_sp--;
206 SAVESPTR(rs); /* This is not permanent, either. */
207 rs = sv_2mortal(newSVpv("", 1));
214 result = do_readline();
221 last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*stack_sp--)), na), TRUE,SVt_PVIO);
222 return do_readline();
227 last_in_gv = cGVOP->op_gv;
228 return do_readline();
235 if (SP - MARK != 1) {
237 do_join(TARG, &sv_no, MARK, SP);
238 tmps = SvPV(TARG, na);
242 tmps = SvPV(TOPs, na);
244 if (!tmps || !*tmps) {
245 SV *error = GvSV(errgv);
246 (void)SvUPGRADE(error, SVt_PV);
247 if (SvPOK(error) && SvCUR(error))
248 sv_catpv(error, "\t...caught");
249 tmps = SvPV(error, na);
252 tmps = "Warning: something's wrong";
261 if (SP - MARK != 1) {
263 do_join(TARG, &sv_no, MARK, SP);
264 tmps = SvPV(TARG, na);
268 tmps = SvPV(TOPs, na);
270 if (!tmps || !*tmps) {
271 SV *error = GvSV(errgv);
272 (void)SvUPGRADE(error, SVt_PV);
273 if (SvPOK(error) && SvCUR(error))
274 sv_catpv(error, "\t...propagated");
275 tmps = SvPV(error, na);
295 DIE(no_usym, "filehandle");
300 DIE(no_usym, "filehandle");
302 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
303 tmps = SvPV(sv, len);
304 if (do_open(gv, tmps, len, FALSE, 0, 0, Nullfp))
305 PUSHi( (I32)forkprocess );
306 else if (forkprocess == 0) /* we are a new child */
323 PUSHs( do_close(gv, TRUE) ? &sv_yes : &sv_no );
343 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
344 DIE(no_usym, "filehandle");
349 do_close(rgv, FALSE);
351 do_close(wgv, FALSE);
356 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
357 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
358 IoIFP(wstio) = IoOFP(wstio);
362 if (!IoIFP(rstio) || !IoOFP(wstio)) {
363 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
365 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
375 DIE(no_func, "pipe");
388 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
390 PUSHi(PerlIO_fileno(fp));
406 TAINT_PROPER("umask");
409 DIE(no_func, "Unsupported function umask");
427 if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
432 if (!PerlIO_flush(fp) && (fp->_flag |= _IOBIN))
437 if (setmode(PerlIO_fileno(fp), OP_BINARY) != -1)
443 #if defined(USEMYBINMODE)
444 if (my_binmode(fp,IoTYPE(io)) != NULL)
463 SV **mark = stack_base + ++*markstack_ptr; /* reuse in entersub */
464 I32 markoff = mark - stack_base - 1;
466 bool oldmustcatch = mustcatch;
469 if (SvTYPE(varsv) == SVt_PVHV)
470 methname = "TIEHASH";
471 else if (SvTYPE(varsv) == SVt_PVAV)
472 methname = "TIEARRAY";
473 else if (SvTYPE(varsv) == SVt_PVGV)
474 methname = "TIEHANDLE";
476 methname = "TIESCALAR";
478 stash = gv_stashsv(mark[1], FALSE);
479 if (!stash || !(gv = gv_fetchmethod(stash, methname)))
480 DIE("Can't locate object method \"%s\" via package \"%s\"",
481 methname, SvPV(mark[1],na));
483 Zero(&myop, 1, BINOP);
484 myop.op_last = (OP *) &myop;
485 myop.op_next = Nullop;
486 myop.op_flags = OPf_KNOW|OPf_STACKED;
492 if (perldb && curstash != debstash)
493 op->op_private |= OPpENTERSUB_DB;
495 XPUSHs((SV*)GvCV(gv));
498 if (op = pp_entersub())
502 mustcatch = oldmustcatch;
504 if (sv_isobject(sv)) {
505 if (SvTYPE(varsv) == SVt_PVHV || SvTYPE(varsv) == SVt_PVAV) {
506 sv_unmagic(varsv, 'P');
507 sv_magic(varsv, sv, 'P', Nullch, 0);
510 sv_unmagic(varsv, 'q');
511 sv_magic(varsv, sv, 'q', Nullch, 0);
515 SP = stack_base + markoff;
530 if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
531 mg = mg_find(sv, 'P') ;
533 mg = mg_find(sv, 'q') ;
535 if (mg && SvREFCNT(SvRV(mg->mg_obj)) > 1)
536 warn("untie attempted while %lu inner references still exist",
537 (unsigned long)SvREFCNT(SvRV(mg->mg_obj)) - 1 ) ;
541 if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
556 if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
557 mg = mg_find(sv, 'P') ;
559 mg = mg_find(sv, 'q') ;
562 PUSHs(sv_2mortal(newSVsv(mg->mg_obj))) ;
579 bool oldmustcatch = mustcatch;
583 sv = sv_mortalcopy(&sv_no);
584 sv_setpv(sv, "AnyDBM_File");
585 stash = gv_stashsv(sv, FALSE);
586 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
588 perl_require_pv("AnyDBM_File.pm");
590 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
591 DIE("No dbm on this machine");
594 Zero(&myop, 1, BINOP);
595 myop.op_last = (OP *) &myop;
596 myop.op_next = Nullop;
597 myop.op_flags = OPf_KNOW|OPf_STACKED;
603 if (perldb && curstash != debstash)
604 op->op_private |= OPpENTERSUB_DB;
612 PUSHs(sv_2mortal(newSViv(O_RDWR|O_CREAT)));
614 PUSHs(sv_2mortal(newSViv(O_RDWR)));
616 PUSHs((SV*)GvCV(gv));
619 if (op = pp_entersub())
623 if (!sv_isobject(TOPs)) {
631 PUSHs(sv_2mortal(newSViv(O_RDONLY)));
633 PUSHs((SV*)GvCV(gv));
636 if (op = pp_entersub())
641 mustcatch = oldmustcatch;
642 if (sv_isobject(TOPs))
643 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
650 return pp_untie(ARGS);
664 struct timeval timebuf;
665 struct timeval *tbuf = &timebuf;
668 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
673 # if BYTEORDER & 0xf0000
674 # define ORDERBYTE (0x88888888 - BYTEORDER)
676 # define ORDERBYTE (0x4444 - BYTEORDER)
682 for (i = 1; i <= 3; i++) {
690 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
691 #if defined(__linux__) || defined(OS2)
692 growsize = sizeof(fd_set);
694 growsize = maxlen; /* little endians can use vecs directly */
703 masksize = NFDBITS / NBBY;
705 masksize = sizeof(long); /* documented int, everyone seems to use long */
707 growsize = maxlen + (masksize - (maxlen % masksize));
708 Zero(&fd_sets[0], 4, char*);
716 timebuf.tv_sec = (long)value;
717 value -= (double)timebuf.tv_sec;
718 timebuf.tv_usec = (long)(value * 1000000.0);
721 tbuf = Null(struct timeval*);
723 for (i = 1; i <= 3; i++) {
730 SvPV_force(sv,na); /* force string conversion */
733 Sv_Grow(sv, growsize);
737 while (++j <= growsize) {
741 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
743 New(403, fd_sets[i], growsize, char);
744 for (offset = 0; offset < growsize; offset += masksize) {
745 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
746 fd_sets[i][j+offset] = s[(k % masksize) + offset];
749 fd_sets[i] = SvPVX(sv);
755 (Select_fd_set_t) fd_sets[1],
756 (Select_fd_set_t) fd_sets[2],
757 (Select_fd_set_t) fd_sets[3],
759 for (i = 1; i <= 3; i++) {
762 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
764 for (offset = 0; offset < growsize; offset += masksize) {
765 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
766 s[(k % masksize) + offset] = fd_sets[i][j+offset];
768 Safefree(fd_sets[i]);
775 if (GIMME == G_ARRAY && tbuf) {
776 value = (double)(timebuf.tv_sec) +
777 (double)(timebuf.tv_usec) / 1000000.0;
778 PUSHs(sv = sv_mortalcopy(&sv_no));
783 DIE("select not implemented");
792 (void)SvREFCNT_inc(gv);
794 SvREFCNT_dec(defoutgv);
804 newdefout = (op->op_private > 0) ? ((GV *) POPs) : NULL;
806 egv = GvEGV(defoutgv);
813 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
814 if (gvp && *gvp == egv) {
815 gv_efullname3(TARG, defoutgv, Nullch);
819 XPUSHs(sv_2mortal(newRV((SV*)egv)));
824 if (!GvIO(newdefout))
826 setdefout(newdefout);
845 if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) {
850 perl_call_method("GETC", GIMME);
853 if (GIMME == G_SCALAR)
854 SvSetSV_nosteal(TARG, TOPs);
857 if (!gv || do_eof(gv)) /* make sure we have fp with something */
861 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
868 return pp_sysread(ARGS);
877 register CONTEXT *cx;
879 AV* padlist = CvPADLIST(cv);
880 SV** svp = AvARRAY(padlist);
886 PUSHBLOCK(cx, CXt_SUB, stack_sp);
889 curpad = AvARRAY((AV*)svp[1]);
891 setdefout(gv); /* locally select filehandle so $% et al work */
923 SV *tmpsv = sv_newmortal();
924 gv_efullname3(tmpsv, fgv, Nullch);
925 DIE("Undefined format \"%s\" called",SvPVX(tmpsv));
927 DIE("Not a format reference");
930 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
932 IoFLAGS(io) &= ~IOf_DIDTOP;
933 return doform(cv,gv,op->op_next);
939 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
940 register IO *io = GvIOp(gv);
941 PerlIO *ofp = IoOFP(io);
945 register CONTEXT *cx;
947 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
948 (long)IoLINES_LEFT(io), (long)FmLINES(formtarget)));
949 if (IoLINES_LEFT(io) < FmLINES(formtarget) &&
950 formtarget != toptarget)
958 if (!IoTOP_NAME(io)) {
960 IoFMT_NAME(io) = savepv(GvNAME(gv));
961 sprintf(tmpbuf, "%s_TOP", IoFMT_NAME(io));
962 topgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVFM);
963 if ((topgv && GvFORM(topgv)) ||
964 !gv_fetchpv("top",FALSE,SVt_PVFM))
965 IoTOP_NAME(io) = savepv(tmpbuf);
967 IoTOP_NAME(io) = savepv("top");
969 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
970 if (!topgv || !GvFORM(topgv)) {
971 IoLINES_LEFT(io) = 100000000;
974 IoTOP_GV(io) = topgv;
976 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
977 I32 lines = IoLINES_LEFT(io);
978 char *s = SvPVX(formtarget);
979 if (lines <= 0) /* Yow, header didn't even fit!!! */
981 while (lines-- > 0) {
988 PerlIO_write(ofp, SvPVX(formtarget), s - SvPVX(formtarget));
989 sv_chop(formtarget, s);
990 FmLINES(formtarget) -= IoLINES_LEFT(io);
993 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
994 PerlIO_write(ofp, SvPVX(formfeed), SvCUR(formfeed));
995 IoLINES_LEFT(io) = IoPAGE_LEN(io);
997 formtarget = toptarget;
998 IoFLAGS(io) |= IOf_DIDTOP;
1001 DIE("bad top format reference");
1004 SV *tmpsv = sv_newmortal();
1005 gv_efullname3(tmpsv, fgv, Nullch);
1006 DIE("Undefined top format \"%s\" called",SvPVX(tmpsv));
1009 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1010 return doform(cv,gv,op);
1022 warn("Filehandle only opened for input");
1024 warn("Write on closed filehandle");
1029 if ((IoLINES_LEFT(io) -= FmLINES(formtarget)) < 0) {
1031 warn("page overflow");
1033 if (!PerlIO_write(ofp, SvPVX(formtarget), SvCUR(formtarget)) ||
1037 FmLINES(formtarget) = 0;
1038 SvCUR_set(formtarget, 0);
1039 *SvEND(formtarget) = '\0';
1040 if (IoFLAGS(io) & IOf_FLUSH)
1041 (void)PerlIO_flush(fp);
1045 formtarget = bodytarget;
1047 return pop_return();
1052 dSP; dMARK; dORIGMARK;
1056 SV *sv = NEWSV(0,0);
1058 if (op->op_flags & OPf_STACKED)
1062 if (!(io = GvIO(gv))) {
1064 gv_fullname3(sv, gv, Nullch);
1065 warn("Filehandle %s never opened", SvPV(sv,na));
1067 SETERRNO(EBADF,RMS$_IFI);
1070 else if (!(fp = IoOFP(io))) {
1072 gv_fullname3(sv, gv, Nullch);
1074 warn("Filehandle %s opened only for input", SvPV(sv,na));
1076 warn("printf on closed filehandle %s", SvPV(sv,na));
1078 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1082 #ifdef USE_LOCALE_NUMERIC
1083 if (op->op_private & OPpLOCALE)
1084 SET_NUMERIC_LOCAL();
1086 SET_NUMERIC_STANDARD();
1088 do_sprintf(sv, SP - MARK, MARK + 1);
1089 if (!do_print(sv, fp))
1092 if (IoFLAGS(io) & IOf_FLUSH)
1093 if (PerlIO_flush(fp) == EOF)
1125 tmps = SvPV(sv, len);
1126 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1127 IoLINES(GvIOp(gv)) = 0;
1138 dSP; dMARK; dORIGMARK; dTARGET;
1144 Sock_size_t bufsize;
1150 if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) {
1156 perl_call_method("READ", G_SCALAR);
1169 sv_setpvn(bufsv, "", 0);
1170 buffer = SvPV_force(bufsv, blen);
1171 length = SvIVx(*++MARK);
1173 DIE("Negative length");
1176 offset = SvIVx(*++MARK);
1180 if (!io || !IoIFP(io))
1183 if (op->op_type == OP_RECV) {
1184 bufsize = sizeof buf;
1185 buffer = SvGROW(bufsv, length+1);
1186 /* 'offset' means 'flags' here */
1187 length = recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1188 (struct sockaddr *)buf, &bufsize);
1191 SvCUR_set(bufsv, length);
1192 *SvEND(bufsv) = '\0';
1193 (void)SvPOK_only(bufsv);
1195 /* This should not be marked tainted if the fp is marked clean */
1196 if (!(IoFLAGS(io) & IOf_UNTAINT))
1197 SvTAINTED_on(bufsv);
1199 sv_setpvn(TARG, buf, bufsize);
1204 if (op->op_type == OP_RECV)
1205 DIE(no_sock_func, "recv");
1209 DIE("Offset outside string");
1212 bufsize = SvCUR(bufsv);
1213 buffer = SvGROW(bufsv, length+offset+1);
1214 if (offset > bufsize) { /* Zero any newly allocated space */
1215 Zero(buffer+bufsize, offset-bufsize, char);
1217 if (op->op_type == OP_SYSREAD) {
1218 length = read(PerlIO_fileno(IoIFP(io)), buffer+offset, length);
1221 #ifdef HAS_SOCKET__bad_code_maybe
1222 if (IoTYPE(io) == 's') {
1223 bufsize = sizeof buf;
1224 length = recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
1225 (struct sockaddr *)buf, &bufsize);
1229 length = PerlIO_read(IoIFP(io), buffer+offset, length);
1232 SvCUR_set(bufsv, length+offset);
1233 *SvEND(bufsv) = '\0';
1234 (void)SvPOK_only(bufsv);
1236 /* This should not be marked tainted if the fp is marked clean */
1237 if (!(IoFLAGS(io) & IOf_UNTAINT))
1238 SvTAINTED_on(bufsv);
1250 return pp_send(ARGS);
1255 dSP; dMARK; dORIGMARK; dTARGET;
1268 buffer = SvPV(bufsv, blen);
1269 length = SvIVx(*++MARK);
1271 DIE("Negative length");
1274 if (!io || !IoIFP(io)) {
1277 if (op->op_type == OP_SYSWRITE)
1278 warn("Syswrite on closed filehandle");
1280 warn("Send on closed socket");
1283 else if (op->op_type == OP_SYSWRITE) {
1285 offset = SvIVx(*++MARK);
1288 DIE("Offset outside string");
1290 } else if (offset >= blen)
1291 DIE("Offset outside string");
1294 if (length > blen - offset)
1295 length = blen - offset;
1296 length = write(PerlIO_fileno(IoIFP(io)), buffer+offset, length);
1299 else if (SP > MARK) {
1302 sockbuf = SvPVx(*++MARK, mlen);
1303 length = sendto(PerlIO_fileno(IoIFP(io)), buffer, blen, length,
1304 (struct sockaddr *)sockbuf, mlen);
1307 length = send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1310 DIE(no_sock_func, "send");
1325 return pp_sysread(ARGS);
1336 gv = last_in_gv = (GV*)POPs;
1337 PUSHs(!gv || do_eof(gv) ? &sv_yes : &sv_no);
1349 gv = last_in_gv = (GV*)POPs;
1350 PUSHi( do_tell(gv) );
1361 gv = last_in_gv = (GV*)POPs;
1362 PUSHs( do_seek(gv, offset, whence) ? &sv_yes : &sv_no );
1369 Off_t len = (Off_t)POPn;
1374 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
1375 if (op->op_flags & OPf_SPECIAL) {
1376 tmpgv = gv_fetchpv(POPp, FALSE, SVt_PVIO);
1378 TAINT_PROPER("truncate");
1379 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1381 ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1383 my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1391 if (SvTYPE(sv) == SVt_PVGV) {
1392 tmpgv = (GV*)sv; /* *main::FRED for example */
1395 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1396 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
1400 name = SvPV(sv, na);
1401 TAINT_PROPER("truncate");
1403 if (truncate(name, len) < 0)
1408 if ((tmpfd = open(name, O_RDWR)) < 0)
1411 if (my_chsize(tmpfd, len) < 0)
1422 SETERRNO(EBADF,RMS$_IFI);
1425 DIE("truncate not implemented");
1431 return pp_ioctl(ARGS);
1438 unsigned int func = U_I(POPn);
1439 int optype = op->op_type;
1445 if (!io || !argsv || !IoIFP(io)) {
1446 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
1450 if (SvPOK(argsv) || !SvNIOK(argsv)) {
1452 s = SvPV_force(argsv, len);
1453 retval = IOCPARM_LEN(func);
1455 s = Sv_Grow(argsv, retval+1);
1456 SvCUR_set(argsv, retval);
1459 s[SvCUR(argsv)] = 17; /* a little sanity check here */
1462 retval = SvIV(argsv);
1464 s = (char*)(long)retval; /* ouch */
1466 s = (char*)retval; /* ouch */
1470 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1472 if (optype == OP_IOCTL)
1474 retval = ioctl(PerlIO_fileno(IoIFP(io)), func, s);
1476 DIE("ioctl is not implemented");
1480 #if defined(OS2) && defined(__EMX__)
1481 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
1483 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
1486 DIE("fcntl is not implemented");
1490 if (s[SvCUR(argsv)] != 17)
1491 DIE("Possible memory corruption: %s overflowed 3rd argument",
1493 s[SvCUR(argsv)] = 0; /* put our null back */
1494 SvSETMAGIC(argsv); /* Assume it has changed */
1503 PUSHp("0 but true", 10);
1523 fp = IoIFP(GvIOp(gv));
1527 (void)PerlIO_flush(fp);
1528 value = (I32)(FLOCK(PerlIO_fileno(fp), argtype) >= 0);
1535 DIE(no_func, "flock()");
1547 int protocol = POPi;
1555 SETERRNO(EBADF,LIB$_INVARG);
1561 do_close(gv, FALSE);
1563 TAINT_PROPER("socket");
1564 fd = socket(domain, type, protocol);
1567 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
1568 IoOFP(io) = PerlIO_fdopen(fd, "w");
1570 if (!IoIFP(io) || !IoOFP(io)) {
1571 if (IoIFP(io)) PerlIO_close(IoIFP(io));
1572 if (IoOFP(io)) PerlIO_close(IoOFP(io));
1573 if (!IoIFP(io) && !IoOFP(io)) close(fd);
1579 DIE(no_sock_func, "socket");
1586 #ifdef HAS_SOCKETPAIR
1591 int protocol = POPi;
1604 do_close(gv1, FALSE);
1606 do_close(gv2, FALSE);
1608 TAINT_PROPER("socketpair");
1609 if (socketpair(domain, type, protocol, fd) < 0)
1611 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
1612 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
1614 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
1615 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
1617 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
1618 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
1619 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
1620 if (!IoIFP(io1) && !IoOFP(io1)) close(fd[0]);
1621 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
1622 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
1623 if (!IoIFP(io2) && !IoOFP(io2)) close(fd[1]);
1629 DIE(no_sock_func, "socketpair");
1640 register IO *io = GvIOn(gv);
1643 if (!io || !IoIFP(io))
1646 addr = SvPV(addrsv, len);
1647 TAINT_PROPER("bind");
1648 if (bind(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1655 warn("bind() on closed fd");
1656 SETERRNO(EBADF,SS$_IVCHAN);
1659 DIE(no_sock_func, "bind");
1670 register IO *io = GvIOn(gv);
1673 if (!io || !IoIFP(io))
1676 addr = SvPV(addrsv, len);
1677 TAINT_PROPER("connect");
1678 if (connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1685 warn("connect() on closed fd");
1686 SETERRNO(EBADF,SS$_IVCHAN);
1689 DIE(no_sock_func, "connect");
1699 register IO *io = GvIOn(gv);
1701 if (!io || !IoIFP(io))
1704 if (listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
1711 warn("listen() on closed fd");
1712 SETERRNO(EBADF,SS$_IVCHAN);
1715 DIE(no_sock_func, "listen");
1727 struct sockaddr saddr; /* use a struct to avoid alignment problems */
1728 Sock_size_t len = sizeof saddr;
1740 if (!gstio || !IoIFP(gstio))
1745 do_close(ngv, FALSE);
1747 fd = accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
1750 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
1751 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
1752 IoTYPE(nstio) = 's';
1753 if (!IoIFP(nstio) || !IoOFP(nstio)) {
1754 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
1755 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
1756 if (!IoIFP(nstio) && !IoOFP(nstio)) close(fd);
1760 PUSHp((char *)&saddr, len);
1765 warn("accept() on closed fd");
1766 SETERRNO(EBADF,SS$_IVCHAN);
1772 DIE(no_sock_func, "accept");
1782 register IO *io = GvIOn(gv);
1784 if (!io || !IoIFP(io))
1787 PUSHi( shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
1792 warn("shutdown() on closed fd");
1793 SETERRNO(EBADF,SS$_IVCHAN);
1796 DIE(no_sock_func, "shutdown");
1803 return pp_ssockopt(ARGS);
1805 DIE(no_sock_func, "getsockopt");
1813 int optype = op->op_type;
1816 unsigned int optname;
1822 if (optype == OP_GSOCKOPT)
1823 sv = sv_2mortal(NEWSV(22, 257));
1826 optname = (unsigned int) POPi;
1827 lvl = (unsigned int) POPi;
1831 if (!io || !IoIFP(io))
1834 fd = PerlIO_fileno(IoIFP(io));
1838 (void)SvPOK_only(sv);
1842 if (getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
1855 else if (SvOK(sv)) {
1856 aint = (int)SvIV(sv);
1860 if (setsockopt(fd, lvl, optname, buf, len) < 0)
1870 warn("[gs]etsockopt() on closed fd");
1871 SETERRNO(EBADF,SS$_IVCHAN);
1876 DIE(no_sock_func, "setsockopt");
1883 return pp_getpeername(ARGS);
1885 DIE(no_sock_func, "getsockname");
1893 int optype = op->op_type;
1897 register IO *io = GvIOn(gv);
1900 if (!io || !IoIFP(io))
1903 sv = sv_2mortal(NEWSV(22, 257));
1904 (void)SvPOK_only(sv);
1908 fd = PerlIO_fileno(IoIFP(io));
1910 case OP_GETSOCKNAME:
1911 if (getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
1914 case OP_GETPEERNAME:
1915 if (getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
1919 #ifdef BOGUS_GETNAME_RETURN
1920 /* Interactive Unix, getpeername() and getsockname()
1921 does not return valid namelen */
1922 if (len == BOGUS_GETNAME_RETURN)
1923 len = sizeof(struct sockaddr);
1932 warn("get{sock, peer}name() on closed fd");
1933 SETERRNO(EBADF,SS$_IVCHAN);
1938 DIE(no_sock_func, "getpeername");
1946 return pp_stat(ARGS);
1955 if (op->op_flags & OPf_REF) {
1956 tmpgv = cGVOP->op_gv;
1958 if (tmpgv != defgv) {
1959 laststype = OP_STAT;
1961 sv_setpv(statname, "");
1962 laststatval = (GvIO(tmpgv) && IoIFP(GvIOp(tmpgv))
1963 ? Fstat(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), &statcache) : -1);
1965 if (laststatval < 0)
1970 if (SvTYPE(sv) == SVt_PVGV) {
1974 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1975 tmpgv = (GV*)SvRV(sv);
1978 sv_setpv(statname, SvPV(sv,na));
1981 laststype = op->op_type;
1982 if (op->op_type == OP_LSTAT)
1983 laststatval = lstat(SvPV(statname, na), &statcache);
1986 laststatval = Stat(SvPV(statname, na), &statcache);
1987 if (laststatval < 0) {
1988 if (dowarn && strchr(SvPV(statname, na), '\n'))
1989 warn(warn_nl, "stat");
1994 if (GIMME != G_ARRAY) {
2005 PUSHs(sv_2mortal(newSViv((I32)statcache.st_dev)));
2006 PUSHs(sv_2mortal(newSViv((I32)statcache.st_ino)));
2007 PUSHs(sv_2mortal(newSViv((I32)statcache.st_mode)));
2008 PUSHs(sv_2mortal(newSViv((I32)statcache.st_nlink)));
2009 PUSHs(sv_2mortal(newSViv((I32)statcache.st_uid)));
2010 PUSHs(sv_2mortal(newSViv((I32)statcache.st_gid)));
2011 #ifdef USE_STAT_RDEV
2012 PUSHs(sv_2mortal(newSViv((I32)statcache.st_rdev)));
2014 PUSHs(sv_2mortal(newSVpv("", 0)));
2016 PUSHs(sv_2mortal(newSViv((I32)statcache.st_size)));
2018 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_atime)));
2019 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_mtime)));
2020 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_ctime)));
2022 PUSHs(sv_2mortal(newSViv((I32)statcache.st_atime)));
2023 PUSHs(sv_2mortal(newSViv((I32)statcache.st_mtime)));
2024 PUSHs(sv_2mortal(newSViv((I32)statcache.st_ctime)));
2026 #ifdef USE_STAT_BLOCKS
2027 PUSHs(sv_2mortal(newSViv((I32)statcache.st_blksize)));
2028 PUSHs(sv_2mortal(newSViv((I32)statcache.st_blocks)));
2030 PUSHs(sv_2mortal(newSVpv("", 0)));
2031 PUSHs(sv_2mortal(newSVpv("", 0)));
2039 I32 result = my_stat(ARGS);
2043 if (cando(S_IRUSR, 0, &statcache))
2050 I32 result = my_stat(ARGS);
2054 if (cando(S_IWUSR, 0, &statcache))
2061 I32 result = my_stat(ARGS);
2065 if (cando(S_IXUSR, 0, &statcache))
2072 I32 result = my_stat(ARGS);
2076 if (cando(S_IRUSR, 1, &statcache))
2083 I32 result = my_stat(ARGS);
2087 if (cando(S_IWUSR, 1, &statcache))
2094 I32 result = my_stat(ARGS);
2098 if (cando(S_IXUSR, 1, &statcache))
2105 I32 result = my_stat(ARGS);
2114 return pp_ftrowned(ARGS);
2119 I32 result = my_stat(ARGS);
2123 if (statcache.st_uid == (op->op_type == OP_FTEOWNED ? euid : uid) )
2130 I32 result = my_stat(ARGS);
2134 if (!statcache.st_size)
2141 I32 result = my_stat(ARGS);
2145 PUSHi(statcache.st_size);
2151 I32 result = my_stat(ARGS);
2155 PUSHn( ((I32)basetime - (I32)statcache.st_mtime) / 86400.0 );
2161 I32 result = my_stat(ARGS);
2165 PUSHn( ((I32)basetime - (I32)statcache.st_atime) / 86400.0 );
2171 I32 result = my_stat(ARGS);
2175 PUSHn( ((I32)basetime - (I32)statcache.st_ctime) / 86400.0 );
2181 I32 result = my_stat(ARGS);
2185 if (S_ISSOCK(statcache.st_mode))
2192 I32 result = my_stat(ARGS);
2196 if (S_ISCHR(statcache.st_mode))
2203 I32 result = my_stat(ARGS);
2207 if (S_ISBLK(statcache.st_mode))
2214 I32 result = my_stat(ARGS);
2218 if (S_ISREG(statcache.st_mode))
2225 I32 result = my_stat(ARGS);
2229 if (S_ISDIR(statcache.st_mode))
2236 I32 result = my_stat(ARGS);
2240 if (S_ISFIFO(statcache.st_mode))
2247 I32 result = my_lstat(ARGS);
2251 if (S_ISLNK(statcache.st_mode))
2260 I32 result = my_stat(ARGS);
2264 if (statcache.st_mode & S_ISUID)
2274 I32 result = my_stat(ARGS);
2278 if (statcache.st_mode & S_ISGID)
2288 I32 result = my_stat(ARGS);
2292 if (statcache.st_mode & S_ISVTX)
2304 if (op->op_flags & OPf_REF) {
2309 gv = gv_fetchpv(tmps = POPp, FALSE, SVt_PVIO);
2310 if (GvIO(gv) && IoIFP(GvIOp(gv)))
2311 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
2312 else if (isDIGIT(*tmps))
2321 #if defined(atarist) /* this will work with atariST. Configure will
2322 make guesses for other systems. */
2323 # define FILE_base(f) ((f)->_base)
2324 # define FILE_ptr(f) ((f)->_ptr)
2325 # define FILE_cnt(f) ((f)->_cnt)
2326 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
2336 register STDCHAR *s;
2341 if (op->op_flags & OPf_REF)
2343 else if (isGV(TOPs))
2345 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2346 gv = (GV*)SvRV(POPs);
2357 goto really_filename;
2363 sv_setpv(statname, "");
2366 if (io && IoIFP(io)) {
2367 if (! PerlIO_has_base(IoIFP(io)))
2368 DIE("-T and -B not implemented on filehandles");
2369 laststatval = Fstat(PerlIO_fileno(IoIFP(io)), &statcache);
2370 if (laststatval < 0)
2372 if (S_ISDIR(statcache.st_mode)) /* handle NFS glitch */
2373 if (op->op_type == OP_FTTEXT)
2377 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
2378 i = PerlIO_getc(IoIFP(io));
2380 (void)PerlIO_ungetc(IoIFP(io),i);
2382 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
2384 len = PerlIO_get_bufsiz(IoIFP(io));
2385 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
2386 /* sfio can have large buffers - limit to 512 */
2392 warn("Test on unopened file <%s>",
2393 GvENAME(cGVOP->op_gv));
2394 SETERRNO(EBADF,RMS$_IFI);
2403 sv_setpv(statname, SvPV(sv, na));
2405 i = open(SvPV(sv, na), O_RDONLY, 0);
2407 i = open(SvPV(sv, na), 0);
2410 if (dowarn && strchr(SvPV(sv, na), '\n'))
2411 warn(warn_nl, "open");
2414 laststatval = Fstat(i, &statcache);
2415 if (laststatval < 0)
2417 len = read(i, tbuf, 512);
2420 if (S_ISDIR(statcache.st_mode) && op->op_type == OP_FTTEXT)
2421 RETPUSHNO; /* special case NFS directories */
2422 RETPUSHYES; /* null file is anything */
2427 /* now scan s to look for textiness */
2428 /* XXX ASCII dependent code */
2430 for (i = 0; i < len; i++, s++) {
2431 if (!*s) { /* null never allowed in text */
2438 *s != '\n' && *s != '\r' && *s != '\b' &&
2439 *s != '\t' && *s != '\f' && *s != 27)
2443 if ((odd * 3 > len) == (op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
2451 return pp_fttext(ARGS);
2466 if (!tmps || !*tmps) {
2467 svp = hv_fetch(GvHVn(envgv), "HOME", 4, FALSE);
2469 tmps = SvPV(*svp, na);
2471 if (!tmps || !*tmps) {
2472 svp = hv_fetch(GvHVn(envgv), "LOGDIR", 6, FALSE);
2474 tmps = SvPV(*svp, na);
2476 TAINT_PROPER("chdir");
2477 PUSHi( chdir(tmps) >= 0 );
2479 /* Clear the DEFAULT element of ENV so we'll get the new value
2481 hv_delete(GvHVn(envgv),"DEFAULT",7,G_DISCARD);
2488 dSP; dMARK; dTARGET;
2491 value = (I32)apply(op->op_type, MARK, SP);
2496 DIE(no_func, "Unsupported function chown");
2506 TAINT_PROPER("chroot");
2507 PUSHi( chroot(tmps) >= 0 );
2510 DIE(no_func, "chroot");
2516 dSP; dMARK; dTARGET;
2518 value = (I32)apply(op->op_type, MARK, SP);
2526 dSP; dMARK; dTARGET;
2528 value = (I32)apply(op->op_type, MARK, SP);
2536 dSP; dMARK; dTARGET;
2538 value = (I32)apply(op->op_type, MARK, SP);
2550 char *tmps = SvPV(TOPs, na);
2551 TAINT_PROPER("rename");
2553 anum = rename(tmps, tmps2);
2555 if (!(anum = Stat(tmps, &statbuf))) {
2556 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
2559 if (euid || Stat(tmps2, &statbuf) < 0 || !S_ISDIR(statbuf.st_mode))
2560 (void)UNLINK(tmps2);
2561 if (!(anum = link(tmps, tmps2)))
2562 anum = UNLINK(tmps);
2575 char *tmps = SvPV(TOPs, na);
2576 TAINT_PROPER("link");
2577 SETi( link(tmps, tmps2) >= 0 );
2579 DIE(no_func, "Unsupported function link");
2589 char *tmps = SvPV(TOPs, na);
2590 TAINT_PROPER("symlink");
2591 SETi( symlink(tmps, tmps2) >= 0 );
2594 DIE(no_func, "symlink");
2605 len = readlink(tmps, buf, sizeof buf);
2613 RETSETUNDEF; /* just pretend it's a normal file */
2617 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
2619 dooneliner(cmd, filename)
2623 char *save_filename = filename;
2629 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
2630 strcpy(cmdline, cmd);
2631 strcat(cmdline, " ");
2632 for (s = cmdline + strlen(cmdline); *filename; ) {
2637 myfp = my_popen(cmdline, "r");
2641 SV *tmpsv = sv_newmortal();
2642 /* Need to save/restore 'rs' ?? */
2643 s = sv_gets(tmpsv, myfp, 0);
2644 (void)my_pclose(myfp);
2648 #ifdef HAS_SYS_ERRLIST
2653 /* you don't see this */
2655 #ifdef HAS_SYS_ERRLIST
2663 if (instr(s, errmsg)) {
2670 #define EACCES EPERM
2672 if (instr(s, "cannot make"))
2673 SETERRNO(EEXIST,RMS$_FEX);
2674 else if (instr(s, "existing file"))
2675 SETERRNO(EEXIST,RMS$_FEX);
2676 else if (instr(s, "ile exists"))
2677 SETERRNO(EEXIST,RMS$_FEX);
2678 else if (instr(s, "non-exist"))
2679 SETERRNO(ENOENT,RMS$_FNF);
2680 else if (instr(s, "does not exist"))
2681 SETERRNO(ENOENT,RMS$_FNF);
2682 else if (instr(s, "not empty"))
2683 SETERRNO(EBUSY,SS$_DEVOFFLINE);
2684 else if (instr(s, "cannot access"))
2685 SETERRNO(EACCES,RMS$_PRV);
2687 SETERRNO(EPERM,RMS$_PRV);
2690 else { /* some mkdirs return no failure indication */
2691 anum = (Stat(save_filename, &statbuf) >= 0);
2692 if (op->op_type == OP_RMDIR)
2697 SETERRNO(EACCES,RMS$_PRV); /* a guess */
2713 char *tmps = SvPV(TOPs, na);
2715 TAINT_PROPER("mkdir");
2717 SETi( mkdir(tmps, mode) >= 0 );
2719 SETi( dooneliner("mkdir", tmps) );
2720 oldumask = umask(0);
2722 chmod(tmps, (mode & ~oldumask) & 0777);
2733 TAINT_PROPER("rmdir");
2735 XPUSHi( rmdir(tmps) >= 0 );
2737 XPUSHi( dooneliner("rmdir", tmps) );
2742 /* Directory calls. */
2747 #if defined(Direntry_t) && defined(HAS_READDIR)
2748 char *dirname = POPp;
2750 register IO *io = GvIOn(gv);
2756 closedir(IoDIRP(io));
2757 if (!(IoDIRP(io) = opendir(dirname)))
2763 SETERRNO(EBADF,RMS$_DIR);
2766 DIE(no_dir_func, "opendir");
2773 #if defined(Direntry_t) && defined(HAS_READDIR)
2775 Direntry_t *readdir _((DIR *));
2777 register Direntry_t *dp;
2779 register IO *io = GvIOn(gv);
2781 if (!io || !IoDIRP(io))
2784 if (GIMME == G_ARRAY) {
2786 while (dp = (Direntry_t *)readdir(IoDIRP(io))) {
2788 XPUSHs(sv_2mortal(newSVpv(dp->d_name, dp->d_namlen)));
2790 XPUSHs(sv_2mortal(newSVpv(dp->d_name, 0)));
2795 if (!(dp = (Direntry_t *)readdir(IoDIRP(io))))
2798 XPUSHs(sv_2mortal(newSVpv(dp->d_name, dp->d_namlen)));
2800 XPUSHs(sv_2mortal(newSVpv(dp->d_name, 0)));
2807 SETERRNO(EBADF,RMS$_ISI);
2808 if (GIMME == G_ARRAY)
2813 DIE(no_dir_func, "readdir");
2820 #if defined(HAS_TELLDIR) || defined(telldir)
2821 #if !defined(telldir) && !defined(HAS_TELLDIR_PROTOTYPE)
2822 long telldir _((DIR *));
2825 register IO *io = GvIOn(gv);
2827 if (!io || !IoDIRP(io))
2830 PUSHi( telldir(IoDIRP(io)) );
2834 SETERRNO(EBADF,RMS$_ISI);
2837 DIE(no_dir_func, "telldir");
2844 #if defined(HAS_SEEKDIR) || defined(seekdir)
2847 register IO *io = GvIOn(gv);
2849 if (!io || !IoDIRP(io))
2852 (void)seekdir(IoDIRP(io), along);
2857 SETERRNO(EBADF,RMS$_ISI);
2860 DIE(no_dir_func, "seekdir");
2867 #if defined(HAS_REWINDDIR) || defined(rewinddir)
2869 register IO *io = GvIOn(gv);
2871 if (!io || !IoDIRP(io))
2874 (void)rewinddir(IoDIRP(io));
2878 SETERRNO(EBADF,RMS$_ISI);
2881 DIE(no_dir_func, "rewinddir");
2888 #if defined(Direntry_t) && defined(HAS_READDIR)
2890 register IO *io = GvIOn(gv);
2892 if (!io || !IoDIRP(io))
2895 #ifdef VOID_CLOSEDIR
2896 closedir(IoDIRP(io));
2898 if (closedir(IoDIRP(io)) < 0) {
2899 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
2908 SETERRNO(EBADF,RMS$_IFI);
2911 DIE(no_dir_func, "closedir");
2915 /* Process control. */
2930 if (tmpgv = gv_fetchpv("$", TRUE, SVt_PV))
2931 sv_setiv(GvSV(tmpgv), (IV)getpid());
2932 hv_clear(pidstatus); /* no kids, so don't wait for 'em */
2937 DIE(no_func, "Unsupported function fork");
2943 #if !defined(DOSISH) || defined(OS2)
2948 childpid = wait4pid(-1, &argflags, 0);
2949 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
2953 DIE(no_func, "Unsupported function wait");
2959 #if !defined(DOSISH) || defined(OS2)
2967 childpid = wait4pid(childpid, &argflags, optype);
2968 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
2972 DIE(no_func, "Unsupported function wait");
2978 dSP; dMARK; dORIGMARK; dTARGET;
2983 Sigsave_t ihand,qhand; /* place to save signals during system() */
2985 if (SP - MARK == 1) {
2987 char *junk = SvPV(TOPs, na);
2989 TAINT_PROPER("system");
2992 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2)
2993 while ((childpid = vfork()) == -1) {
2994 if (errno != EAGAIN) {
3003 rsignal_save(SIGINT, SIG_IGN, &ihand);
3004 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
3006 result = wait4pid(childpid, &status, 0);
3007 } while (result == -1 && errno == EINTR);
3008 (void)rsignal_restore(SIGINT, &ihand);
3009 (void)rsignal_restore(SIGQUIT, &qhand);
3010 STATUS_NATIVE_SET(result == -1 ? -1 : status);
3011 do_execfree(); /* free any memory child malloced on vfork */
3013 PUSHi(STATUS_CURRENT);
3016 if (op->op_flags & OPf_STACKED) {
3017 SV *really = *++MARK;
3018 value = (I32)do_aexec(really, MARK, SP);
3020 else if (SP - MARK != 1)
3021 value = (I32)do_aexec(Nullsv, MARK, SP);
3023 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), na));
3026 #else /* ! FORK or VMS or OS/2 */
3027 if (op->op_flags & OPf_STACKED) {
3028 SV *really = *++MARK;
3029 value = (I32)do_aspawn(really, MARK, SP);
3031 else if (SP - MARK != 1)
3032 value = (I32)do_aspawn(Nullsv, MARK, SP);
3034 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), na));
3036 STATUS_NATIVE_SET(value);
3039 PUSHi(STATUS_CURRENT);
3040 #endif /* !FORK or VMS */
3046 dSP; dMARK; dORIGMARK; dTARGET;
3049 if (op->op_flags & OPf_STACKED) {
3050 SV *really = *++MARK;
3051 value = (I32)do_aexec(really, MARK, SP);
3053 else if (SP - MARK != 1)
3055 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
3057 value = (I32)do_aexec(Nullsv, MARK, SP);
3061 char *junk = SvPV(*SP, na);
3063 TAINT_PROPER("exec");
3066 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), na));
3068 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), na));
3078 dSP; dMARK; dTARGET;
3081 value = (I32)apply(op->op_type, MARK, SP);
3086 DIE(no_func, "Unsupported function kill");
3094 XPUSHi( getppid() );
3097 DIE(no_func, "getppid");
3113 value = (I32)BSD_GETPGRP(pid);
3115 if (pid != 0 && pid != getpid())
3116 DIE("POSIX getpgrp can't take an argument");
3117 value = (I32)getpgrp();
3122 DIE(no_func, "getpgrp()");
3141 TAINT_PROPER("setpgrp");
3143 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
3145 if ((pgrp != 0 && pgrp != getpid())) || (pid != 0 && pid != getpid()))
3146 DIE("POSIX setpgrp can't take an argument");
3147 SETi( setpgrp() >= 0 );
3148 #endif /* USE_BSDPGRP */
3151 DIE(no_func, "setpgrp()");
3160 #ifdef HAS_GETPRIORITY
3163 SETi( getpriority(which, who) );
3166 DIE(no_func, "getpriority()");
3176 #ifdef HAS_SETPRIORITY
3180 TAINT_PROPER("setpriority");
3181 SETi( setpriority(which, who, niceval) >= 0 );
3184 DIE(no_func, "setpriority()");
3194 XPUSHn( time(Null(Time_t*)) );
3196 XPUSHi( time(Null(Time_t*)) );
3201 /* XXX The POSIX name is CLK_TCK; it is to be preferred
3202 to HZ. Probably. For now, assume that if the system
3203 defines HZ, it does so correctly. (Will this break
3205 Probably we ought to use _sysconf(_SC_CLK_TCK), if
3206 it's supported. --AD 9/96.
3222 DIE("times not implemented");
3227 (void)times(×buf);
3229 (void)times((tbuffer_t *)×buf); /* time.h uses different name for */
3230 /* struct tms, though same data */
3234 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_utime)/HZ)));
3235 if (GIMME == G_ARRAY) {
3236 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_stime)/HZ)));
3237 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_cutime)/HZ)));
3238 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_cstime)/HZ)));
3241 #endif /* HAS_TIMES */
3246 return pp_gmtime(ARGS);
3254 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
3255 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
3256 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
3262 when = (Time_t)SvNVx(POPs);
3264 when = (Time_t)SvIVx(POPs);
3267 if (op->op_type == OP_LOCALTIME)
3268 tmbuf = localtime(&when);
3270 tmbuf = gmtime(&when);
3274 if (GIMME != G_ARRAY) {
3279 sprintf(mybuf, "%s %s %2d %02d:%02d:%02d %d",
3280 dayname[tmbuf->tm_wday],
3281 monname[tmbuf->tm_mon],
3286 tmbuf->tm_year + 1900);
3287 PUSHp(mybuf, strlen(mybuf));
3290 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_sec)));
3291 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_min)));
3292 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_hour)));
3293 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mday)));
3294 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mon)));
3295 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_year)));
3296 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_wday)));
3297 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_yday)));
3298 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_isdst)));
3309 anum = alarm((unsigned int)anum);
3316 DIE(no_func, "Unsupported function alarm");
3327 (void)time(&lasttime);
3332 sleep((unsigned int)duration);
3335 XPUSHi(when - lasttime);
3339 /* Shared memory. */
3343 return pp_semget(ARGS);
3348 return pp_semctl(ARGS);
3353 return pp_shmwrite(ARGS);
3358 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3359 dSP; dMARK; dTARGET;
3360 I32 value = (I32)(do_shmio(op->op_type, MARK, SP) >= 0);
3365 return pp_semget(ARGS);
3369 /* Message passing. */
3373 return pp_semget(ARGS);
3378 return pp_semctl(ARGS);
3383 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3384 dSP; dMARK; dTARGET;
3385 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
3390 return pp_semget(ARGS);
3396 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3397 dSP; dMARK; dTARGET;
3398 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
3403 return pp_semget(ARGS);
3411 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3412 dSP; dMARK; dTARGET;
3413 int anum = do_ipcget(op->op_type, MARK, SP);
3420 DIE("System V IPC is not implemented on this machine");
3426 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3427 dSP; dMARK; dTARGET;
3428 int anum = do_ipcctl(op->op_type, MARK, SP);
3436 PUSHp("0 but true",10);
3440 return pp_semget(ARGS);
3446 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3447 dSP; dMARK; dTARGET;
3448 I32 value = (I32)(do_semop(MARK, SP) >= 0);
3453 return pp_semget(ARGS);
3457 /* Get system info. */
3462 return pp_ghostent(ARGS);
3464 DIE(no_sock_func, "gethostbyname");
3471 return pp_ghostent(ARGS);
3473 DIE(no_sock_func, "gethostbyaddr");
3481 I32 which = op->op_type;
3482 register char **elem;
3484 struct hostent *gethostbyname();
3485 struct hostent *gethostbyaddr();
3486 #ifdef HAS_GETHOSTENT
3487 struct hostent *gethostent();
3489 struct hostent *hent;
3493 if (which == OP_GHBYNAME) {
3494 hent = gethostbyname(POPp);
3496 else if (which == OP_GHBYADDR) {
3497 int addrtype = POPi;
3500 char *addr = SvPV(addrsv, addrlen);
3502 hent = gethostbyaddr(addr, addrlen, addrtype);
3505 #ifdef HAS_GETHOSTENT
3506 hent = gethostent();
3508 DIE("gethostent not implemented");
3511 #ifdef HOST_NOT_FOUND
3513 STATUS_NATIVE_SET(h_errno);
3516 if (GIMME != G_ARRAY) {
3517 PUSHs(sv = sv_newmortal());
3519 if (which == OP_GHBYNAME) {
3521 sv_setpvn(sv, hent->h_addr, hent->h_length);
3524 sv_setpv(sv, (char*)hent->h_name);
3530 PUSHs(sv = sv_mortalcopy(&sv_no));
3531 sv_setpv(sv, (char*)hent->h_name);
3532 PUSHs(sv = sv_mortalcopy(&sv_no));
3533 for (elem = hent->h_aliases; elem && *elem; elem++) {
3534 sv_catpv(sv, *elem);
3536 sv_catpvn(sv, " ", 1);
3538 PUSHs(sv = sv_mortalcopy(&sv_no));
3539 sv_setiv(sv, (IV)hent->h_addrtype);
3540 PUSHs(sv = sv_mortalcopy(&sv_no));
3541 len = hent->h_length;
3542 sv_setiv(sv, (IV)len);
3544 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3545 XPUSHs(sv = sv_mortalcopy(&sv_no));
3546 sv_setpvn(sv, *elem, len);
3549 PUSHs(sv = sv_mortalcopy(&sv_no));
3551 sv_setpvn(sv, hent->h_addr, len);
3556 DIE(no_sock_func, "gethostent");
3563 return pp_gnetent(ARGS);
3565 DIE(no_sock_func, "getnetbyname");
3572 return pp_gnetent(ARGS);
3574 DIE(no_sock_func, "getnetbyaddr");
3582 I32 which = op->op_type;
3583 register char **elem;
3585 struct netent *getnetbyname();
3586 struct netent *getnetbyaddr();
3587 struct netent *getnetent();
3588 struct netent *nent;
3590 if (which == OP_GNBYNAME)
3591 nent = getnetbyname(POPp);
3592 else if (which == OP_GNBYADDR) {
3593 int addrtype = POPi;
3594 unsigned long addr = U_L(POPn);
3595 nent = getnetbyaddr((long)addr, addrtype);
3601 if (GIMME != G_ARRAY) {
3602 PUSHs(sv = sv_newmortal());
3604 if (which == OP_GNBYNAME)
3605 sv_setiv(sv, (IV)nent->n_net);
3607 sv_setpv(sv, nent->n_name);
3613 PUSHs(sv = sv_mortalcopy(&sv_no));
3614 sv_setpv(sv, nent->n_name);
3615 PUSHs(sv = sv_mortalcopy(&sv_no));
3616 for (elem = nent->n_aliases; *elem; elem++) {
3617 sv_catpv(sv, *elem);
3619 sv_catpvn(sv, " ", 1);
3621 PUSHs(sv = sv_mortalcopy(&sv_no));
3622 sv_setiv(sv, (IV)nent->n_addrtype);
3623 PUSHs(sv = sv_mortalcopy(&sv_no));
3624 sv_setiv(sv, (IV)nent->n_net);
3629 DIE(no_sock_func, "getnetent");
3636 return pp_gprotoent(ARGS);
3638 DIE(no_sock_func, "getprotobyname");
3645 return pp_gprotoent(ARGS);
3647 DIE(no_sock_func, "getprotobynumber");
3655 I32 which = op->op_type;
3656 register char **elem;
3658 struct protoent *getprotobyname();
3659 struct protoent *getprotobynumber();
3660 struct protoent *getprotoent();
3661 struct protoent *pent;
3663 if (which == OP_GPBYNAME)
3664 pent = getprotobyname(POPp);
3665 else if (which == OP_GPBYNUMBER)
3666 pent = getprotobynumber(POPi);
3668 pent = getprotoent();
3671 if (GIMME != G_ARRAY) {
3672 PUSHs(sv = sv_newmortal());
3674 if (which == OP_GPBYNAME)
3675 sv_setiv(sv, (IV)pent->p_proto);
3677 sv_setpv(sv, pent->p_name);
3683 PUSHs(sv = sv_mortalcopy(&sv_no));
3684 sv_setpv(sv, pent->p_name);
3685 PUSHs(sv = sv_mortalcopy(&sv_no));
3686 for (elem = pent->p_aliases; *elem; elem++) {
3687 sv_catpv(sv, *elem);
3689 sv_catpvn(sv, " ", 1);
3691 PUSHs(sv = sv_mortalcopy(&sv_no));
3692 sv_setiv(sv, (IV)pent->p_proto);
3697 DIE(no_sock_func, "getprotoent");
3704 return pp_gservent(ARGS);
3706 DIE(no_sock_func, "getservbyname");
3713 return pp_gservent(ARGS);
3715 DIE(no_sock_func, "getservbyport");
3723 I32 which = op->op_type;
3724 register char **elem;
3726 struct servent *getservbyname();
3727 struct servent *getservbynumber();
3728 struct servent *getservent();
3729 struct servent *sent;
3731 if (which == OP_GSBYNAME) {
3735 if (proto && !*proto)
3738 sent = getservbyname(name, proto);
3740 else if (which == OP_GSBYPORT) {
3742 unsigned short port = POPu;
3747 sent = getservbyport(port, proto);
3750 sent = getservent();
3753 if (GIMME != G_ARRAY) {
3754 PUSHs(sv = sv_newmortal());
3756 if (which == OP_GSBYNAME) {
3758 sv_setiv(sv, (IV)ntohs(sent->s_port));
3760 sv_setiv(sv, (IV)(sent->s_port));
3764 sv_setpv(sv, sent->s_name);
3770 PUSHs(sv = sv_mortalcopy(&sv_no));
3771 sv_setpv(sv, sent->s_name);
3772 PUSHs(sv = sv_mortalcopy(&sv_no));
3773 for (elem = sent->s_aliases; *elem; elem++) {
3774 sv_catpv(sv, *elem);
3776 sv_catpvn(sv, " ", 1);
3778 PUSHs(sv = sv_mortalcopy(&sv_no));
3780 sv_setiv(sv, (IV)ntohs(sent->s_port));
3782 sv_setiv(sv, (IV)(sent->s_port));
3784 PUSHs(sv = sv_mortalcopy(&sv_no));
3785 sv_setpv(sv, sent->s_proto);
3790 DIE(no_sock_func, "getservent");
3801 DIE(no_sock_func, "sethostent");
3812 DIE(no_sock_func, "setnetent");
3823 DIE(no_sock_func, "setprotoent");
3834 DIE(no_sock_func, "setservent");
3846 DIE(no_sock_func, "endhostent");
3858 DIE(no_sock_func, "endnetent");
3870 DIE(no_sock_func, "endprotoent");
3882 DIE(no_sock_func, "endservent");
3889 return pp_gpwent(ARGS);
3891 DIE(no_func, "getpwnam");
3898 return pp_gpwent(ARGS);
3900 DIE(no_func, "getpwuid");
3908 I32 which = op->op_type;
3910 struct passwd *pwent;
3912 if (which == OP_GPWNAM)
3913 pwent = getpwnam(POPp);
3914 else if (which == OP_GPWUID)
3915 pwent = getpwuid(POPi);
3917 pwent = (struct passwd *)getpwent();
3920 if (GIMME != G_ARRAY) {
3921 PUSHs(sv = sv_newmortal());
3923 if (which == OP_GPWNAM)
3924 sv_setiv(sv, (IV)pwent->pw_uid);
3926 sv_setpv(sv, pwent->pw_name);
3932 PUSHs(sv = sv_mortalcopy(&sv_no));
3933 sv_setpv(sv, pwent->pw_name);
3934 PUSHs(sv = sv_mortalcopy(&sv_no));
3935 sv_setpv(sv, pwent->pw_passwd);
3936 PUSHs(sv = sv_mortalcopy(&sv_no));
3937 sv_setiv(sv, (IV)pwent->pw_uid);
3938 PUSHs(sv = sv_mortalcopy(&sv_no));
3939 sv_setiv(sv, (IV)pwent->pw_gid);
3940 PUSHs(sv = sv_mortalcopy(&sv_no));
3942 sv_setiv(sv, (IV)pwent->pw_change);
3945 sv_setiv(sv, (IV)pwent->pw_quota);
3948 sv_setpv(sv, pwent->pw_age);
3952 PUSHs(sv = sv_mortalcopy(&sv_no));
3954 sv_setpv(sv, pwent->pw_class);
3957 sv_setpv(sv, pwent->pw_comment);
3960 PUSHs(sv = sv_mortalcopy(&sv_no));
3961 sv_setpv(sv, pwent->pw_gecos);
3962 PUSHs(sv = sv_mortalcopy(&sv_no));
3963 sv_setpv(sv, pwent->pw_dir);
3964 PUSHs(sv = sv_mortalcopy(&sv_no));
3965 sv_setpv(sv, pwent->pw_shell);
3967 PUSHs(sv = sv_mortalcopy(&sv_no));
3968 sv_setiv(sv, (IV)pwent->pw_expire);
3973 DIE(no_func, "getpwent");
3984 DIE(no_func, "setpwent");
3995 DIE(no_func, "endpwent");
4002 return pp_ggrent(ARGS);
4004 DIE(no_func, "getgrnam");
4011 return pp_ggrent(ARGS);
4013 DIE(no_func, "getgrgid");
4021 I32 which = op->op_type;
4022 register char **elem;
4024 struct group *grent;
4026 if (which == OP_GGRNAM)
4027 grent = (struct group *)getgrnam(POPp);
4028 else if (which == OP_GGRGID)
4029 grent = (struct group *)getgrgid(POPi);
4031 grent = (struct group *)getgrent();
4034 if (GIMME != G_ARRAY) {
4035 PUSHs(sv = sv_newmortal());
4037 if (which == OP_GGRNAM)
4038 sv_setiv(sv, (IV)grent->gr_gid);
4040 sv_setpv(sv, grent->gr_name);
4046 PUSHs(sv = sv_mortalcopy(&sv_no));
4047 sv_setpv(sv, grent->gr_name);
4048 PUSHs(sv = sv_mortalcopy(&sv_no));
4049 sv_setpv(sv, grent->gr_passwd);
4050 PUSHs(sv = sv_mortalcopy(&sv_no));
4051 sv_setiv(sv, (IV)grent->gr_gid);
4052 PUSHs(sv = sv_mortalcopy(&sv_no));
4053 for (elem = grent->gr_mem; *elem; elem++) {
4054 sv_catpv(sv, *elem);
4056 sv_catpvn(sv, " ", 1);
4062 DIE(no_func, "getgrent");
4073 DIE(no_func, "setgrent");
4084 DIE(no_func, "endgrent");
4094 if (!(tmps = getlogin()))
4096 PUSHp(tmps, strlen(tmps));
4099 DIE(no_func, "getlogin");
4103 /* Miscellaneous. */
4108 dSP; dMARK; dORIGMARK; dTARGET;
4109 register I32 items = SP - MARK;
4110 unsigned long a[20];
4116 while (++MARK <= SP) {
4117 if (SvTAINTED(*MARK)) {
4123 TAINT_PROPER("syscall");
4126 /* This probably won't work on machines where sizeof(long) != sizeof(int)
4127 * or where sizeof(long) != sizeof(char*). But such machines will
4128 * not likely have syscall implemented either, so who cares?
4130 while (++MARK <= SP) {
4131 if (SvNIOK(*MARK) || !i)
4132 a[i++] = SvIV(*MARK);
4133 else if (*MARK == &sv_undef)
4136 a[i++] = (unsigned long)SvPV_force(*MARK, na);
4142 DIE("Too many args to syscall");
4144 DIE("Too few args to syscall");
4146 retval = syscall(a[0]);
4149 retval = syscall(a[0],a[1]);
4152 retval = syscall(a[0],a[1],a[2]);
4155 retval = syscall(a[0],a[1],a[2],a[3]);
4158 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
4161 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
4164 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
4167 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
4171 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
4174 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
4177 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4181 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4185 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4189 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4190 a[10],a[11],a[12],a[13]);
4192 #endif /* atarist */
4198 DIE(no_func, "syscall");
4202 #ifdef FCNTL_EMULATE_FLOCK
4204 /* XXX Emulate flock() with fcntl().
4205 What's really needed is a good file locking module.
4209 fcntl_emulate_flock(fd, operation)
4215 switch (operation & ~LOCK_NB) {
4217 flock.l_type = F_RDLCK;
4220 flock.l_type = F_WRLCK;
4223 flock.l_type = F_UNLCK;
4229 flock.l_whence = SEEK_SET;
4230 flock.l_start = flock.l_len = 0L;
4232 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
4235 #endif /* FCNTL_EMULATE_FLOCK */
4237 #ifdef LOCKF_EMULATE_FLOCK
4239 /* XXX Emulate flock() with lockf(). This is just to increase
4240 portability of scripts. The calls are not completely
4241 interchangeable. What's really needed is a good file
4245 /* The lockf() constants might have been defined in <unistd.h>.
4246 Unfortunately, <unistd.h> causes troubles on some mixed
4247 (BSD/POSIX) systems, such as SunOS 4.1.3.
4249 Further, the lockf() constants aren't POSIX, so they might not be
4250 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
4251 just stick in the SVID values and be done with it. Sigh.
4255 # define F_ULOCK 0 /* Unlock a previously locked region */
4258 # define F_LOCK 1 /* Lock a region for exclusive use */
4261 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
4264 # define F_TEST 3 /* Test a region for other processes locks */
4268 lockf_emulate_flock (fd, operation)
4273 switch (operation) {
4275 /* LOCK_SH - get a shared lock */
4277 /* LOCK_EX - get an exclusive lock */
4279 i = lockf (fd, F_LOCK, 0);
4282 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
4283 case LOCK_SH|LOCK_NB:
4284 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
4285 case LOCK_EX|LOCK_NB:
4286 i = lockf (fd, F_TLOCK, 0);
4288 if ((errno == EAGAIN) || (errno == EACCES))
4289 errno = EWOULDBLOCK;
4292 /* LOCK_UN - unlock (non-blocking is a no-op) */
4294 case LOCK_UN|LOCK_NB:
4295 i = lockf (fd, F_ULOCK, 0);
4298 /* Default - can't decipher operation */
4307 #endif /* LOCKF_EMULATE_FLOCK */