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 #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */
34 # include <sys/socket.h>
38 # include <net/errno.h>
45 #include <sys/select.h>
57 struct passwd *getpwnam _((char *));
58 struct passwd *getpwuid _((Uid_t));
60 struct passwd *getpwent _((void));
67 struct group *getgrnam _((char *));
68 struct group *getgrgid _((Gid_t));
70 struct group *getgrent _((void));
75 # include <sys/utime.h>
87 /* Put this after #includes because fork and vfork prototypes may conflict. */
92 /* Put this after #includes because <unistd.h> defines _XOPEN_*. */
94 # if _XOPEN_VERSION >= 5 || defined(_XOPEN_SOURCE_EXTENDED)
95 # define Sock_size_t Size_t
97 # define Sock_size_t int
101 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
102 static int dooneliner _((char *cmd, char *filename));
106 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
109 # define my_chsize chsize
114 #else /* no flock() */
116 /* fcntl.h might not have been included, even if it exists, because
117 the current Configure only sets I_FCNTL if it's needed to pick up
118 the *_OK constants. Make sure it has been included before testing
119 the fcntl() locking constants. */
120 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
124 # if defined(HAS_FCNTL) && defined(F_SETLK) && defined (F_SETLKW)
125 # define FLOCK fcntl_emulate_flock
126 # define FCNTL_EMULATE_FLOCK
127 # else /* no flock() or fcntl(F_SETLK,...) */
129 # define FLOCK lockf_emulate_flock
130 # define LOCKF_EMULATE_FLOCK
132 # endif /* no flock() or fcntl(F_SETLK,...) */
135 static int FLOCK _((int, int));
138 * These are the flock() constants. Since this sytems doesn't have
139 * flock(), the values of the constants are probably not available.
153 # endif /* emulating flock() */
155 #endif /* no flock() */
168 fp = my_popen(tmps, "r");
170 if (gimme == G_VOID) {
171 while (PerlIO_read(fp, buf, sizeof buf) > 0)
175 else if (gimme == G_SCALAR) {
176 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
177 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
188 if (sv_gets(sv, fp, 0) == Nullch) {
192 XPUSHs(sv_2mortal(sv));
193 if (SvLEN(sv) - SvCUR(sv) > 20) {
194 SvLEN_set(sv, SvCUR(sv)+1);
195 Renew(SvPVX(sv), SvLEN(sv), char);
200 STATUS_NATIVE_SET(my_pclose(fp));
201 TAINT; /* "I believe that this is not gratuitous!" */
204 STATUS_NATIVE_SET(-1);
205 if (gimme == G_SCALAR)
217 SAVESPTR(last_in_gv); /* We don't want this to be permanent. */
218 last_in_gv = (GV*)*stack_sp--;
220 SAVESPTR(rs); /* This is not permanent, either. */
221 rs = sv_2mortal(newSVpv("", 1));
228 result = do_readline();
235 last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*stack_sp--)), na), TRUE,SVt_PVIO);
236 return do_readline();
241 last_in_gv = cGVOP->op_gv;
242 return do_readline();
249 if (SP - MARK != 1) {
251 do_join(TARG, &sv_no, MARK, SP);
252 tmps = SvPV(TARG, na);
256 tmps = SvPV(TOPs, na);
258 if (!tmps || !*tmps) {
259 SV *error = GvSV(errgv);
260 (void)SvUPGRADE(error, SVt_PV);
261 if (SvPOK(error) && SvCUR(error))
262 sv_catpv(error, "\t...caught");
263 tmps = SvPV(error, na);
266 tmps = "Warning: something's wrong";
275 if (SP - MARK != 1) {
277 do_join(TARG, &sv_no, MARK, SP);
278 tmps = SvPV(TARG, na);
282 tmps = SvPV(TOPs, na);
284 if (!tmps || !*tmps) {
285 SV *error = GvSV(errgv);
286 (void)SvUPGRADE(error, SVt_PV);
287 if (SvPOK(error) && SvCUR(error))
288 sv_catpv(error, "\t...propagated");
289 tmps = SvPV(error, na);
309 DIE(no_usym, "filehandle");
314 DIE(no_usym, "filehandle");
316 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
317 tmps = SvPV(sv, len);
318 if (do_open(gv, tmps, len, FALSE, 0, 0, Nullfp))
319 PUSHi( (I32)forkprocess );
320 else if (forkprocess == 0) /* we are a new child */
337 PUSHs(boolSV(do_close(gv, TRUE)));
357 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
358 DIE(no_usym, "filehandle");
363 do_close(rgv, FALSE);
365 do_close(wgv, FALSE);
370 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
371 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
372 IoIFP(wstio) = IoOFP(wstio);
376 if (!IoIFP(rstio) || !IoOFP(wstio)) {
377 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
379 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
389 DIE(no_func, "pipe");
402 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
404 PUSHi(PerlIO_fileno(fp));
420 TAINT_PROPER("umask");
423 DIE(no_func, "Unsupported function umask");
441 if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
446 if (!PerlIO_flush(fp) && (fp->_flag |= _IOBIN))
451 if (setmode(PerlIO_fileno(fp), OP_BINARY) != -1)
457 #if defined(USEMYBINMODE)
458 if (my_binmode(fp,IoTYPE(io)) != NULL)
477 SV **mark = stack_base + ++*markstack_ptr; /* reuse in entersub */
478 I32 markoff = mark - stack_base - 1;
480 bool oldcatch = CATCH_GET;
483 if (SvTYPE(varsv) == SVt_PVHV)
484 methname = "TIEHASH";
485 else if (SvTYPE(varsv) == SVt_PVAV)
486 methname = "TIEARRAY";
487 else if (SvTYPE(varsv) == SVt_PVGV)
488 methname = "TIEHANDLE";
490 methname = "TIESCALAR";
492 stash = gv_stashsv(mark[1], FALSE);
493 if (!stash || !(gv = gv_fetchmethod(stash, methname)))
494 DIE("Can't locate object method \"%s\" via package \"%s\"",
495 methname, SvPV(mark[1],na));
497 Zero(&myop, 1, BINOP);
498 myop.op_last = (OP *) &myop;
499 myop.op_next = Nullop;
500 myop.op_flags = OPf_WANT_SCALAR | OPf_STACKED;
506 if (perldb && curstash != debstash)
507 op->op_private |= OPpENTERSUB_DB;
509 XPUSHs((SV*)GvCV(gv));
512 if (op = pp_entersub())
518 if (sv_isobject(sv)) {
519 if (SvTYPE(varsv) == SVt_PVHV || SvTYPE(varsv) == SVt_PVAV) {
520 sv_unmagic(varsv, 'P');
521 sv_magic(varsv, sv, 'P', Nullch, 0);
524 sv_unmagic(varsv, 'q');
525 sv_magic(varsv, sv, 'q', Nullch, 0);
529 SP = stack_base + markoff;
544 if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
545 mg = mg_find(sv, 'P') ;
547 mg = mg_find(sv, 'q') ;
549 if (mg && SvREFCNT(SvRV(mg->mg_obj)) > 1)
550 warn("untie attempted while %lu inner references still exist",
551 (unsigned long)SvREFCNT(SvRV(mg->mg_obj)) - 1 ) ;
555 if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
570 if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
571 mg = mg_find(sv, 'P') ;
573 mg = mg_find(sv, 'q') ;
576 PUSHs(sv_2mortal(newSVsv(mg->mg_obj))) ;
593 bool oldcatch = CATCH_GET;
597 sv = sv_mortalcopy(&sv_no);
598 sv_setpv(sv, "AnyDBM_File");
599 stash = gv_stashsv(sv, FALSE);
600 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
602 perl_require_pv("AnyDBM_File.pm");
604 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
605 DIE("No dbm on this machine");
608 Zero(&myop, 1, BINOP);
609 myop.op_last = (OP *) &myop;
610 myop.op_next = Nullop;
611 myop.op_flags = OPf_WANT_SCALAR | OPf_STACKED;
617 if (perldb && curstash != debstash)
618 op->op_private |= OPpENTERSUB_DB;
626 PUSHs(sv_2mortal(newSViv(O_RDWR|O_CREAT)));
628 PUSHs(sv_2mortal(newSViv(O_RDWR)));
630 PUSHs((SV*)GvCV(gv));
633 if (op = pp_entersub())
637 if (!sv_isobject(TOPs)) {
645 PUSHs(sv_2mortal(newSViv(O_RDONLY)));
647 PUSHs((SV*)GvCV(gv));
650 if (op = pp_entersub())
656 if (sv_isobject(TOPs))
657 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
664 return pp_untie(ARGS);
678 struct timeval timebuf;
679 struct timeval *tbuf = &timebuf;
682 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
687 # if BYTEORDER & 0xf0000
688 # define ORDERBYTE (0x88888888 - BYTEORDER)
690 # define ORDERBYTE (0x4444 - BYTEORDER)
696 for (i = 1; i <= 3; i++) {
704 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
705 #if defined(__linux__) || defined(OS2)
706 growsize = sizeof(fd_set);
708 growsize = maxlen; /* little endians can use vecs directly */
717 masksize = NFDBITS / NBBY;
719 masksize = sizeof(long); /* documented int, everyone seems to use long */
721 growsize = maxlen + (masksize - (maxlen % masksize));
722 Zero(&fd_sets[0], 4, char*);
730 timebuf.tv_sec = (long)value;
731 value -= (double)timebuf.tv_sec;
732 timebuf.tv_usec = (long)(value * 1000000.0);
735 tbuf = Null(struct timeval*);
737 for (i = 1; i <= 3; i++) {
744 SvPV_force(sv,na); /* force string conversion */
747 Sv_Grow(sv, growsize);
751 while (++j <= growsize) {
755 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
757 New(403, fd_sets[i], growsize, char);
758 for (offset = 0; offset < growsize; offset += masksize) {
759 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
760 fd_sets[i][j+offset] = s[(k % masksize) + offset];
763 fd_sets[i] = SvPVX(sv);
769 (Select_fd_set_t) fd_sets[1],
770 (Select_fd_set_t) fd_sets[2],
771 (Select_fd_set_t) fd_sets[3],
773 for (i = 1; i <= 3; i++) {
776 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
778 for (offset = 0; offset < growsize; offset += masksize) {
779 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
780 s[(k % masksize) + offset] = fd_sets[i][j+offset];
782 Safefree(fd_sets[i]);
789 if (GIMME == G_ARRAY && tbuf) {
790 value = (double)(timebuf.tv_sec) +
791 (double)(timebuf.tv_usec) / 1000000.0;
792 PUSHs(sv = sv_mortalcopy(&sv_no));
797 DIE("select not implemented");
806 (void)SvREFCNT_inc(gv);
808 SvREFCNT_dec(defoutgv);
818 newdefout = (op->op_private > 0) ? ((GV *) POPs) : NULL;
820 egv = GvEGV(defoutgv);
827 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
828 if (gvp && *gvp == egv) {
829 gv_efullname3(TARG, defoutgv, Nullch);
833 XPUSHs(sv_2mortal(newRV((SV*)egv)));
838 if (!GvIO(newdefout))
840 setdefout(newdefout);
859 if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) {
865 perl_call_method("GETC", gimme);
868 if (gimme == G_SCALAR)
869 SvSetMagicSV_nosteal(TARG, TOPs);
872 if (!gv || do_eof(gv)) /* make sure we have fp with something */
876 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
883 return pp_sysread(ARGS);
892 register CONTEXT *cx;
894 AV* padlist = CvPADLIST(cv);
895 SV** svp = AvARRAY(padlist);
901 PUSHBLOCK(cx, CXt_SUB, stack_sp);
904 curpad = AvARRAY((AV*)svp[1]);
906 setdefout(gv); /* locally select filehandle so $% et al work */
938 SV *tmpsv = sv_newmortal();
939 gv_efullname3(tmpsv, fgv, Nullch);
940 DIE("Undefined format \"%s\" called",SvPVX(tmpsv));
942 DIE("Not a format reference");
945 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
947 IoFLAGS(io) &= ~IOf_DIDTOP;
948 return doform(cv,gv,op->op_next);
954 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
955 register IO *io = GvIOp(gv);
956 PerlIO *ofp = IoOFP(io);
960 register CONTEXT *cx;
962 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
963 (long)IoLINES_LEFT(io), (long)FmLINES(formtarget)));
964 if (IoLINES_LEFT(io) < FmLINES(formtarget) &&
965 formtarget != toptarget)
973 if (!IoTOP_NAME(io)) {
975 IoFMT_NAME(io) = savepv(GvNAME(gv));
976 sprintf(tmpbuf, "%s_TOP", IoFMT_NAME(io));
977 topgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVFM);
978 if ((topgv && GvFORM(topgv)) ||
979 !gv_fetchpv("top",FALSE,SVt_PVFM))
980 IoTOP_NAME(io) = savepv(tmpbuf);
982 IoTOP_NAME(io) = savepv("top");
984 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
985 if (!topgv || !GvFORM(topgv)) {
986 IoLINES_LEFT(io) = 100000000;
989 IoTOP_GV(io) = topgv;
991 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
992 I32 lines = IoLINES_LEFT(io);
993 char *s = SvPVX(formtarget);
994 if (lines <= 0) /* Yow, header didn't even fit!!! */
996 while (lines-- > 0) {
1003 PerlIO_write(ofp, SvPVX(formtarget), s - SvPVX(formtarget));
1004 sv_chop(formtarget, s);
1005 FmLINES(formtarget) -= IoLINES_LEFT(io);
1008 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1009 PerlIO_write(ofp, SvPVX(formfeed), SvCUR(formfeed));
1010 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1012 formtarget = toptarget;
1013 IoFLAGS(io) |= IOf_DIDTOP;
1016 DIE("bad top format reference");
1019 SV *tmpsv = sv_newmortal();
1020 gv_efullname3(tmpsv, fgv, Nullch);
1021 DIE("Undefined top format \"%s\" called",SvPVX(tmpsv));
1024 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1025 return doform(cv,gv,op);
1037 warn("Filehandle only opened for input");
1039 warn("Write on closed filehandle");
1044 if ((IoLINES_LEFT(io) -= FmLINES(formtarget)) < 0) {
1046 warn("page overflow");
1048 if (!PerlIO_write(ofp, SvPVX(formtarget), SvCUR(formtarget)) ||
1052 FmLINES(formtarget) = 0;
1053 SvCUR_set(formtarget, 0);
1054 *SvEND(formtarget) = '\0';
1055 if (IoFLAGS(io) & IOf_FLUSH)
1056 (void)PerlIO_flush(fp);
1060 formtarget = bodytarget;
1062 return pop_return();
1067 dSP; dMARK; dORIGMARK;
1071 SV *sv = NEWSV(0,0);
1073 if (op->op_flags & OPf_STACKED)
1077 if (!(io = GvIO(gv))) {
1079 gv_fullname3(sv, gv, Nullch);
1080 warn("Filehandle %s never opened", SvPV(sv,na));
1082 SETERRNO(EBADF,RMS$_IFI);
1085 else if (!(fp = IoOFP(io))) {
1087 gv_fullname3(sv, gv, Nullch);
1089 warn("Filehandle %s opened only for input", SvPV(sv,na));
1091 warn("printf on closed filehandle %s", SvPV(sv,na));
1093 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1097 #ifdef USE_LOCALE_NUMERIC
1098 if (op->op_private & OPpLOCALE)
1099 SET_NUMERIC_LOCAL();
1101 SET_NUMERIC_STANDARD();
1103 do_sprintf(sv, SP - MARK, MARK + 1);
1104 if (!do_print(sv, fp))
1107 if (IoFLAGS(io) & IOf_FLUSH)
1108 if (PerlIO_flush(fp) == EOF)
1140 tmps = SvPV(sv, len);
1141 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1142 IoLINES(GvIOp(gv)) = 0;
1153 dSP; dMARK; dORIGMARK; dTARGET;
1159 Sock_size_t bufsize;
1165 if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) {
1171 perl_call_method("READ", G_SCALAR);
1184 sv_setpvn(bufsv, "", 0);
1185 buffer = SvPV_force(bufsv, blen);
1186 length = SvIVx(*++MARK);
1188 DIE("Negative length");
1191 offset = SvIVx(*++MARK);
1195 if (!io || !IoIFP(io))
1198 if (op->op_type == OP_RECV) {
1199 bufsize = sizeof buf;
1200 buffer = SvGROW(bufsv, length+1);
1201 /* 'offset' means 'flags' here */
1202 length = recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1203 (struct sockaddr *)buf, &bufsize);
1206 SvCUR_set(bufsv, length);
1207 *SvEND(bufsv) = '\0';
1208 (void)SvPOK_only(bufsv);
1210 /* This should not be marked tainted if the fp is marked clean */
1211 if (!(IoFLAGS(io) & IOf_UNTAINT))
1212 SvTAINTED_on(bufsv);
1214 sv_setpvn(TARG, buf, bufsize);
1219 if (op->op_type == OP_RECV)
1220 DIE(no_sock_func, "recv");
1224 DIE("Offset outside string");
1227 bufsize = SvCUR(bufsv);
1228 buffer = SvGROW(bufsv, length+offset+1);
1229 if (offset > bufsize) { /* Zero any newly allocated space */
1230 Zero(buffer+bufsize, offset-bufsize, char);
1232 if (op->op_type == OP_SYSREAD) {
1233 length = read(PerlIO_fileno(IoIFP(io)), buffer+offset, length);
1236 #ifdef HAS_SOCKET__bad_code_maybe
1237 if (IoTYPE(io) == 's') {
1238 bufsize = sizeof buf;
1239 length = recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
1240 (struct sockaddr *)buf, &bufsize);
1244 length = PerlIO_read(IoIFP(io), buffer+offset, length);
1247 SvCUR_set(bufsv, length+offset);
1248 *SvEND(bufsv) = '\0';
1249 (void)SvPOK_only(bufsv);
1251 /* This should not be marked tainted if the fp is marked clean */
1252 if (!(IoFLAGS(io) & IOf_UNTAINT))
1253 SvTAINTED_on(bufsv);
1265 return pp_send(ARGS);
1270 dSP; dMARK; dORIGMARK; dTARGET;
1283 buffer = SvPV(bufsv, blen);
1284 length = SvIVx(*++MARK);
1286 DIE("Negative length");
1289 if (!io || !IoIFP(io)) {
1292 if (op->op_type == OP_SYSWRITE)
1293 warn("Syswrite on closed filehandle");
1295 warn("Send on closed socket");
1298 else if (op->op_type == OP_SYSWRITE) {
1300 offset = SvIVx(*++MARK);
1303 DIE("Offset outside string");
1305 } else if (offset >= blen)
1306 DIE("Offset outside string");
1309 if (length > blen - offset)
1310 length = blen - offset;
1311 length = write(PerlIO_fileno(IoIFP(io)), buffer+offset, length);
1314 else if (SP > MARK) {
1317 sockbuf = SvPVx(*++MARK, mlen);
1318 length = sendto(PerlIO_fileno(IoIFP(io)), buffer, blen, length,
1319 (struct sockaddr *)sockbuf, mlen);
1322 length = send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1325 DIE(no_sock_func, "send");
1340 return pp_sysread(ARGS);
1351 gv = last_in_gv = (GV*)POPs;
1352 PUSHs(boolSV(!gv || do_eof(gv)));
1364 gv = last_in_gv = (GV*)POPs;
1365 PUSHi( do_tell(gv) );
1376 gv = last_in_gv = (GV*)POPs;
1377 PUSHs(boolSV(do_seek(gv, offset, whence)));
1384 Off_t len = (Off_t)POPn;
1389 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
1390 if (op->op_flags & OPf_SPECIAL) {
1391 tmpgv = gv_fetchpv(POPp, FALSE, SVt_PVIO);
1393 TAINT_PROPER("truncate");
1394 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1396 ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1398 my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1406 if (SvTYPE(sv) == SVt_PVGV) {
1407 tmpgv = (GV*)sv; /* *main::FRED for example */
1410 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1411 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
1415 name = SvPV(sv, na);
1416 TAINT_PROPER("truncate");
1418 if (truncate(name, len) < 0)
1423 if ((tmpfd = open(name, O_RDWR)) < 0)
1426 if (my_chsize(tmpfd, len) < 0)
1437 SETERRNO(EBADF,RMS$_IFI);
1440 DIE("truncate not implemented");
1446 return pp_ioctl(ARGS);
1453 unsigned int func = U_I(POPn);
1454 int optype = op->op_type;
1460 if (!io || !argsv || !IoIFP(io)) {
1461 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
1465 if (SvPOK(argsv) || !SvNIOK(argsv)) {
1467 s = SvPV_force(argsv, len);
1468 retval = IOCPARM_LEN(func);
1470 s = Sv_Grow(argsv, retval+1);
1471 SvCUR_set(argsv, retval);
1474 s[SvCUR(argsv)] = 17; /* a little sanity check here */
1477 retval = SvIV(argsv);
1479 s = (char*)(long)retval; /* ouch */
1481 s = (char*)retval; /* ouch */
1485 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1487 if (optype == OP_IOCTL)
1489 retval = ioctl(PerlIO_fileno(IoIFP(io)), func, s);
1491 DIE("ioctl is not implemented");
1495 #if defined(OS2) && defined(__EMX__)
1496 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
1498 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
1501 DIE("fcntl is not implemented");
1505 if (s[SvCUR(argsv)] != 17)
1506 DIE("Possible memory corruption: %s overflowed 3rd argument",
1508 s[SvCUR(argsv)] = 0; /* put our null back */
1509 SvSETMAGIC(argsv); /* Assume it has changed */
1518 PUSHp("0 but true", 10);
1538 fp = IoIFP(GvIOp(gv));
1542 (void)PerlIO_flush(fp);
1543 value = (I32)(FLOCK(PerlIO_fileno(fp), argtype) >= 0);
1550 DIE(no_func, "flock()");
1562 int protocol = POPi;
1570 SETERRNO(EBADF,LIB$_INVARG);
1576 do_close(gv, FALSE);
1578 TAINT_PROPER("socket");
1579 fd = socket(domain, type, protocol);
1582 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
1583 IoOFP(io) = PerlIO_fdopen(fd, "w");
1585 if (!IoIFP(io) || !IoOFP(io)) {
1586 if (IoIFP(io)) PerlIO_close(IoIFP(io));
1587 if (IoOFP(io)) PerlIO_close(IoOFP(io));
1588 if (!IoIFP(io) && !IoOFP(io)) close(fd);
1594 DIE(no_sock_func, "socket");
1601 #ifdef HAS_SOCKETPAIR
1606 int protocol = POPi;
1619 do_close(gv1, FALSE);
1621 do_close(gv2, FALSE);
1623 TAINT_PROPER("socketpair");
1624 if (socketpair(domain, type, protocol, fd) < 0)
1626 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
1627 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
1629 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
1630 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
1632 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
1633 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
1634 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
1635 if (!IoIFP(io1) && !IoOFP(io1)) close(fd[0]);
1636 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
1637 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
1638 if (!IoIFP(io2) && !IoOFP(io2)) close(fd[1]);
1644 DIE(no_sock_func, "socketpair");
1655 register IO *io = GvIOn(gv);
1658 if (!io || !IoIFP(io))
1661 addr = SvPV(addrsv, len);
1662 TAINT_PROPER("bind");
1663 if (bind(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1670 warn("bind() on closed fd");
1671 SETERRNO(EBADF,SS$_IVCHAN);
1674 DIE(no_sock_func, "bind");
1685 register IO *io = GvIOn(gv);
1688 if (!io || !IoIFP(io))
1691 addr = SvPV(addrsv, len);
1692 TAINT_PROPER("connect");
1693 if (connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1700 warn("connect() on closed fd");
1701 SETERRNO(EBADF,SS$_IVCHAN);
1704 DIE(no_sock_func, "connect");
1714 register IO *io = GvIOn(gv);
1716 if (!io || !IoIFP(io))
1719 if (listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
1726 warn("listen() on closed fd");
1727 SETERRNO(EBADF,SS$_IVCHAN);
1730 DIE(no_sock_func, "listen");
1742 struct sockaddr saddr; /* use a struct to avoid alignment problems */
1743 Sock_size_t len = sizeof saddr;
1755 if (!gstio || !IoIFP(gstio))
1760 do_close(ngv, FALSE);
1762 fd = accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
1765 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
1766 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
1767 IoTYPE(nstio) = 's';
1768 if (!IoIFP(nstio) || !IoOFP(nstio)) {
1769 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
1770 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
1771 if (!IoIFP(nstio) && !IoOFP(nstio)) close(fd);
1775 PUSHp((char *)&saddr, len);
1780 warn("accept() on closed fd");
1781 SETERRNO(EBADF,SS$_IVCHAN);
1787 DIE(no_sock_func, "accept");
1797 register IO *io = GvIOn(gv);
1799 if (!io || !IoIFP(io))
1802 PUSHi( shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
1807 warn("shutdown() on closed fd");
1808 SETERRNO(EBADF,SS$_IVCHAN);
1811 DIE(no_sock_func, "shutdown");
1818 return pp_ssockopt(ARGS);
1820 DIE(no_sock_func, "getsockopt");
1828 int optype = op->op_type;
1831 unsigned int optname;
1837 if (optype == OP_GSOCKOPT)
1838 sv = sv_2mortal(NEWSV(22, 257));
1841 optname = (unsigned int) POPi;
1842 lvl = (unsigned int) POPi;
1846 if (!io || !IoIFP(io))
1849 fd = PerlIO_fileno(IoIFP(io));
1853 (void)SvPOK_only(sv);
1857 if (getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
1870 else if (SvOK(sv)) {
1871 aint = (int)SvIV(sv);
1875 if (setsockopt(fd, lvl, optname, buf, len) < 0)
1885 warn("[gs]etsockopt() on closed fd");
1886 SETERRNO(EBADF,SS$_IVCHAN);
1891 DIE(no_sock_func, "setsockopt");
1898 return pp_getpeername(ARGS);
1900 DIE(no_sock_func, "getsockname");
1908 int optype = op->op_type;
1912 register IO *io = GvIOn(gv);
1915 if (!io || !IoIFP(io))
1918 sv = sv_2mortal(NEWSV(22, 257));
1919 (void)SvPOK_only(sv);
1923 fd = PerlIO_fileno(IoIFP(io));
1925 case OP_GETSOCKNAME:
1926 if (getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
1929 case OP_GETPEERNAME:
1930 if (getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
1934 #ifdef BOGUS_GETNAME_RETURN
1935 /* Interactive Unix, getpeername() and getsockname()
1936 does not return valid namelen */
1937 if (len == BOGUS_GETNAME_RETURN)
1938 len = sizeof(struct sockaddr);
1947 warn("get{sock, peer}name() on closed fd");
1948 SETERRNO(EBADF,SS$_IVCHAN);
1953 DIE(no_sock_func, "getpeername");
1961 return pp_stat(ARGS);
1971 if (op->op_flags & OPf_REF) {
1972 tmpgv = cGVOP->op_gv;
1974 if (tmpgv != defgv) {
1975 laststype = OP_STAT;
1977 sv_setpv(statname, "");
1978 laststatval = (GvIO(tmpgv) && IoIFP(GvIOp(tmpgv))
1979 ? Fstat(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), &statcache) : -1);
1981 if (laststatval < 0)
1986 if (SvTYPE(sv) == SVt_PVGV) {
1990 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1991 tmpgv = (GV*)SvRV(sv);
1994 sv_setpv(statname, SvPV(sv,na));
1997 laststype = op->op_type;
1998 if (op->op_type == OP_LSTAT)
1999 laststatval = lstat(SvPV(statname, na), &statcache);
2002 laststatval = Stat(SvPV(statname, na), &statcache);
2003 if (laststatval < 0) {
2004 if (dowarn && strchr(SvPV(statname, na), '\n'))
2005 warn(warn_nl, "stat");
2011 if (gimme != G_ARRAY) {
2012 if (gimme != G_VOID)
2013 XPUSHs(boolSV(max));
2019 PUSHs(sv_2mortal(newSViv((I32)statcache.st_dev)));
2020 PUSHs(sv_2mortal(newSViv((I32)statcache.st_ino)));
2021 PUSHs(sv_2mortal(newSViv((I32)statcache.st_mode)));
2022 PUSHs(sv_2mortal(newSViv((I32)statcache.st_nlink)));
2023 PUSHs(sv_2mortal(newSViv((I32)statcache.st_uid)));
2024 PUSHs(sv_2mortal(newSViv((I32)statcache.st_gid)));
2025 #ifdef USE_STAT_RDEV
2026 PUSHs(sv_2mortal(newSViv((I32)statcache.st_rdev)));
2028 PUSHs(sv_2mortal(newSVpv("", 0)));
2030 PUSHs(sv_2mortal(newSViv((I32)statcache.st_size)));
2032 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_atime)));
2033 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_mtime)));
2034 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_ctime)));
2036 PUSHs(sv_2mortal(newSViv((I32)statcache.st_atime)));
2037 PUSHs(sv_2mortal(newSViv((I32)statcache.st_mtime)));
2038 PUSHs(sv_2mortal(newSViv((I32)statcache.st_ctime)));
2040 #ifdef USE_STAT_BLOCKS
2041 PUSHs(sv_2mortal(newSViv((I32)statcache.st_blksize)));
2042 PUSHs(sv_2mortal(newSViv((I32)statcache.st_blocks)));
2044 PUSHs(sv_2mortal(newSVpv("", 0)));
2045 PUSHs(sv_2mortal(newSVpv("", 0)));
2053 I32 result = my_stat(ARGS);
2057 if (cando(S_IRUSR, 0, &statcache))
2064 I32 result = my_stat(ARGS);
2068 if (cando(S_IWUSR, 0, &statcache))
2075 I32 result = my_stat(ARGS);
2079 if (cando(S_IXUSR, 0, &statcache))
2086 I32 result = my_stat(ARGS);
2090 if (cando(S_IRUSR, 1, &statcache))
2097 I32 result = my_stat(ARGS);
2101 if (cando(S_IWUSR, 1, &statcache))
2108 I32 result = my_stat(ARGS);
2112 if (cando(S_IXUSR, 1, &statcache))
2119 I32 result = my_stat(ARGS);
2128 return pp_ftrowned(ARGS);
2133 I32 result = my_stat(ARGS);
2137 if (statcache.st_uid == (op->op_type == OP_FTEOWNED ? euid : uid) )
2144 I32 result = my_stat(ARGS);
2148 if (!statcache.st_size)
2155 I32 result = my_stat(ARGS);
2159 PUSHi(statcache.st_size);
2165 I32 result = my_stat(ARGS);
2169 PUSHn( ((I32)basetime - (I32)statcache.st_mtime) / 86400.0 );
2175 I32 result = my_stat(ARGS);
2179 PUSHn( ((I32)basetime - (I32)statcache.st_atime) / 86400.0 );
2185 I32 result = my_stat(ARGS);
2189 PUSHn( ((I32)basetime - (I32)statcache.st_ctime) / 86400.0 );
2195 I32 result = my_stat(ARGS);
2199 if (S_ISSOCK(statcache.st_mode))
2206 I32 result = my_stat(ARGS);
2210 if (S_ISCHR(statcache.st_mode))
2217 I32 result = my_stat(ARGS);
2221 if (S_ISBLK(statcache.st_mode))
2228 I32 result = my_stat(ARGS);
2232 if (S_ISREG(statcache.st_mode))
2239 I32 result = my_stat(ARGS);
2243 if (S_ISDIR(statcache.st_mode))
2250 I32 result = my_stat(ARGS);
2254 if (S_ISFIFO(statcache.st_mode))
2261 I32 result = my_lstat(ARGS);
2265 if (S_ISLNK(statcache.st_mode))
2274 I32 result = my_stat(ARGS);
2278 if (statcache.st_mode & S_ISUID)
2288 I32 result = my_stat(ARGS);
2292 if (statcache.st_mode & S_ISGID)
2302 I32 result = my_stat(ARGS);
2306 if (statcache.st_mode & S_ISVTX)
2318 if (op->op_flags & OPf_REF) {
2323 gv = gv_fetchpv(tmps = POPp, FALSE, SVt_PVIO);
2324 if (GvIO(gv) && IoIFP(GvIOp(gv)))
2325 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
2326 else if (isDIGIT(*tmps))
2335 #if defined(atarist) /* this will work with atariST. Configure will
2336 make guesses for other systems. */
2337 # define FILE_base(f) ((f)->_base)
2338 # define FILE_ptr(f) ((f)->_ptr)
2339 # define FILE_cnt(f) ((f)->_cnt)
2340 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
2350 register STDCHAR *s;
2355 if (op->op_flags & OPf_REF)
2357 else if (isGV(TOPs))
2359 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2360 gv = (GV*)SvRV(POPs);
2371 goto really_filename;
2377 sv_setpv(statname, "");
2380 if (io && IoIFP(io)) {
2381 if (! PerlIO_has_base(IoIFP(io)))
2382 DIE("-T and -B not implemented on filehandles");
2383 laststatval = Fstat(PerlIO_fileno(IoIFP(io)), &statcache);
2384 if (laststatval < 0)
2386 if (S_ISDIR(statcache.st_mode)) /* handle NFS glitch */
2387 if (op->op_type == OP_FTTEXT)
2391 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
2392 i = PerlIO_getc(IoIFP(io));
2394 (void)PerlIO_ungetc(IoIFP(io),i);
2396 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
2398 len = PerlIO_get_bufsiz(IoIFP(io));
2399 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
2400 /* sfio can have large buffers - limit to 512 */
2406 warn("Test on unopened file <%s>",
2407 GvENAME(cGVOP->op_gv));
2408 SETERRNO(EBADF,RMS$_IFI);
2417 sv_setpv(statname, SvPV(sv, na));
2419 i = open(SvPV(sv, na), O_RDONLY, 0);
2421 i = open(SvPV(sv, na), 0);
2424 if (dowarn && strchr(SvPV(sv, na), '\n'))
2425 warn(warn_nl, "open");
2428 laststatval = Fstat(i, &statcache);
2429 if (laststatval < 0)
2431 len = read(i, tbuf, 512);
2434 if (S_ISDIR(statcache.st_mode) && op->op_type == OP_FTTEXT)
2435 RETPUSHNO; /* special case NFS directories */
2436 RETPUSHYES; /* null file is anything */
2441 /* now scan s to look for textiness */
2442 /* XXX ASCII dependent code */
2444 for (i = 0; i < len; i++, s++) {
2445 if (!*s) { /* null never allowed in text */
2452 *s != '\n' && *s != '\r' && *s != '\b' &&
2453 *s != '\t' && *s != '\f' && *s != 27)
2457 if ((odd * 3 > len) == (op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
2465 return pp_fttext(ARGS);
2480 if (!tmps || !*tmps) {
2481 svp = hv_fetch(GvHVn(envgv), "HOME", 4, FALSE);
2483 tmps = SvPV(*svp, na);
2485 if (!tmps || !*tmps) {
2486 svp = hv_fetch(GvHVn(envgv), "LOGDIR", 6, FALSE);
2488 tmps = SvPV(*svp, na);
2490 TAINT_PROPER("chdir");
2491 PUSHi( chdir(tmps) >= 0 );
2493 /* Clear the DEFAULT element of ENV so we'll get the new value
2495 hv_delete(GvHVn(envgv),"DEFAULT",7,G_DISCARD);
2502 dSP; dMARK; dTARGET;
2505 value = (I32)apply(op->op_type, MARK, SP);
2510 DIE(no_func, "Unsupported function chown");
2520 TAINT_PROPER("chroot");
2521 PUSHi( chroot(tmps) >= 0 );
2524 DIE(no_func, "chroot");
2530 dSP; dMARK; dTARGET;
2532 value = (I32)apply(op->op_type, MARK, SP);
2540 dSP; dMARK; dTARGET;
2542 value = (I32)apply(op->op_type, MARK, SP);
2550 dSP; dMARK; dTARGET;
2552 value = (I32)apply(op->op_type, MARK, SP);
2564 char *tmps = SvPV(TOPs, na);
2565 TAINT_PROPER("rename");
2567 anum = rename(tmps, tmps2);
2569 if (!(anum = Stat(tmps, &statbuf))) {
2570 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
2573 if (euid || Stat(tmps2, &statbuf) < 0 || !S_ISDIR(statbuf.st_mode))
2574 (void)UNLINK(tmps2);
2575 if (!(anum = link(tmps, tmps2)))
2576 anum = UNLINK(tmps);
2589 char *tmps = SvPV(TOPs, na);
2590 TAINT_PROPER("link");
2591 SETi( link(tmps, tmps2) >= 0 );
2593 DIE(no_func, "Unsupported function link");
2603 char *tmps = SvPV(TOPs, na);
2604 TAINT_PROPER("symlink");
2605 SETi( symlink(tmps, tmps2) >= 0 );
2608 DIE(no_func, "symlink");
2619 len = readlink(tmps, buf, sizeof buf);
2627 RETSETUNDEF; /* just pretend it's a normal file */
2631 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
2633 dooneliner(cmd, filename)
2637 char *save_filename = filename;
2643 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
2644 strcpy(cmdline, cmd);
2645 strcat(cmdline, " ");
2646 for (s = cmdline + strlen(cmdline); *filename; ) {
2651 myfp = my_popen(cmdline, "r");
2655 SV *tmpsv = sv_newmortal();
2656 /* Need to save/restore 'rs' ?? */
2657 s = sv_gets(tmpsv, myfp, 0);
2658 (void)my_pclose(myfp);
2662 #ifdef HAS_SYS_ERRLIST
2667 /* you don't see this */
2669 #ifdef HAS_SYS_ERRLIST
2677 if (instr(s, errmsg)) {
2684 #define EACCES EPERM
2686 if (instr(s, "cannot make"))
2687 SETERRNO(EEXIST,RMS$_FEX);
2688 else if (instr(s, "existing file"))
2689 SETERRNO(EEXIST,RMS$_FEX);
2690 else if (instr(s, "ile exists"))
2691 SETERRNO(EEXIST,RMS$_FEX);
2692 else if (instr(s, "non-exist"))
2693 SETERRNO(ENOENT,RMS$_FNF);
2694 else if (instr(s, "does not exist"))
2695 SETERRNO(ENOENT,RMS$_FNF);
2696 else if (instr(s, "not empty"))
2697 SETERRNO(EBUSY,SS$_DEVOFFLINE);
2698 else if (instr(s, "cannot access"))
2699 SETERRNO(EACCES,RMS$_PRV);
2701 SETERRNO(EPERM,RMS$_PRV);
2704 else { /* some mkdirs return no failure indication */
2705 anum = (Stat(save_filename, &statbuf) >= 0);
2706 if (op->op_type == OP_RMDIR)
2711 SETERRNO(EACCES,RMS$_PRV); /* a guess */
2727 char *tmps = SvPV(TOPs, na);
2729 TAINT_PROPER("mkdir");
2731 SETi( mkdir(tmps, mode) >= 0 );
2733 SETi( dooneliner("mkdir", tmps) );
2734 oldumask = umask(0);
2736 chmod(tmps, (mode & ~oldumask) & 0777);
2747 TAINT_PROPER("rmdir");
2749 XPUSHi( rmdir(tmps) >= 0 );
2751 XPUSHi( dooneliner("rmdir", tmps) );
2756 /* Directory calls. */
2761 #if defined(Direntry_t) && defined(HAS_READDIR)
2762 char *dirname = POPp;
2764 register IO *io = GvIOn(gv);
2770 closedir(IoDIRP(io));
2771 if (!(IoDIRP(io) = opendir(dirname)))
2777 SETERRNO(EBADF,RMS$_DIR);
2780 DIE(no_dir_func, "opendir");
2787 #if defined(Direntry_t) && defined(HAS_READDIR)
2789 Direntry_t *readdir _((DIR *));
2791 register Direntry_t *dp;
2793 register IO *io = GvIOn(gv);
2795 if (!io || !IoDIRP(io))
2798 if (GIMME == G_ARRAY) {
2800 while (dp = (Direntry_t *)readdir(IoDIRP(io))) {
2802 XPUSHs(sv_2mortal(newSVpv(dp->d_name, dp->d_namlen)));
2804 XPUSHs(sv_2mortal(newSVpv(dp->d_name, 0)));
2809 if (!(dp = (Direntry_t *)readdir(IoDIRP(io))))
2812 XPUSHs(sv_2mortal(newSVpv(dp->d_name, dp->d_namlen)));
2814 XPUSHs(sv_2mortal(newSVpv(dp->d_name, 0)));
2821 SETERRNO(EBADF,RMS$_ISI);
2822 if (GIMME == G_ARRAY)
2827 DIE(no_dir_func, "readdir");
2834 #if defined(HAS_TELLDIR) || defined(telldir)
2835 #if !defined(telldir) && !defined(HAS_TELLDIR_PROTOTYPE)
2836 long telldir _((DIR *));
2839 register IO *io = GvIOn(gv);
2841 if (!io || !IoDIRP(io))
2844 PUSHi( telldir(IoDIRP(io)) );
2848 SETERRNO(EBADF,RMS$_ISI);
2851 DIE(no_dir_func, "telldir");
2858 #if defined(HAS_SEEKDIR) || defined(seekdir)
2861 register IO *io = GvIOn(gv);
2863 if (!io || !IoDIRP(io))
2866 (void)seekdir(IoDIRP(io), along);
2871 SETERRNO(EBADF,RMS$_ISI);
2874 DIE(no_dir_func, "seekdir");
2881 #if defined(HAS_REWINDDIR) || defined(rewinddir)
2883 register IO *io = GvIOn(gv);
2885 if (!io || !IoDIRP(io))
2888 (void)rewinddir(IoDIRP(io));
2892 SETERRNO(EBADF,RMS$_ISI);
2895 DIE(no_dir_func, "rewinddir");
2902 #if defined(Direntry_t) && defined(HAS_READDIR)
2904 register IO *io = GvIOn(gv);
2906 if (!io || !IoDIRP(io))
2909 #ifdef VOID_CLOSEDIR
2910 closedir(IoDIRP(io));
2912 if (closedir(IoDIRP(io)) < 0) {
2913 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
2922 SETERRNO(EBADF,RMS$_IFI);
2925 DIE(no_dir_func, "closedir");
2929 /* Process control. */
2944 if (tmpgv = gv_fetchpv("$", TRUE, SVt_PV))
2945 sv_setiv(GvSV(tmpgv), (IV)getpid());
2946 hv_clear(pidstatus); /* no kids, so don't wait for 'em */
2951 DIE(no_func, "Unsupported function fork");
2957 #if !defined(DOSISH) || defined(OS2)
2962 childpid = wait4pid(-1, &argflags, 0);
2963 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
2967 DIE(no_func, "Unsupported function wait");
2973 #if !defined(DOSISH) || defined(OS2)
2981 childpid = wait4pid(childpid, &argflags, optype);
2982 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
2986 DIE(no_func, "Unsupported function wait");
2992 dSP; dMARK; dORIGMARK; dTARGET;
2997 Sigsave_t ihand,qhand; /* place to save signals during system() */
2999 if (SP - MARK == 1) {
3001 char *junk = SvPV(TOPs, na);
3003 TAINT_PROPER("system");
3006 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2)
3007 while ((childpid = vfork()) == -1) {
3008 if (errno != EAGAIN) {
3017 rsignal_save(SIGINT, SIG_IGN, &ihand);
3018 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
3020 result = wait4pid(childpid, &status, 0);
3021 } while (result == -1 && errno == EINTR);
3022 (void)rsignal_restore(SIGINT, &ihand);
3023 (void)rsignal_restore(SIGQUIT, &qhand);
3024 STATUS_NATIVE_SET(result == -1 ? -1 : status);
3025 do_execfree(); /* free any memory child malloced on vfork */
3027 PUSHi(STATUS_CURRENT);
3030 if (op->op_flags & OPf_STACKED) {
3031 SV *really = *++MARK;
3032 value = (I32)do_aexec(really, MARK, SP);
3034 else if (SP - MARK != 1)
3035 value = (I32)do_aexec(Nullsv, MARK, SP);
3037 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), na));
3040 #else /* ! FORK or VMS or OS/2 */
3041 if (op->op_flags & OPf_STACKED) {
3042 SV *really = *++MARK;
3043 value = (I32)do_aspawn(really, MARK, SP);
3045 else if (SP - MARK != 1)
3046 value = (I32)do_aspawn(Nullsv, MARK, SP);
3048 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), na));
3050 STATUS_NATIVE_SET(value);
3053 PUSHi(STATUS_CURRENT);
3054 #endif /* !FORK or VMS */
3060 dSP; dMARK; dORIGMARK; dTARGET;
3063 if (op->op_flags & OPf_STACKED) {
3064 SV *really = *++MARK;
3065 value = (I32)do_aexec(really, MARK, SP);
3067 else if (SP - MARK != 1)
3069 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
3071 value = (I32)do_aexec(Nullsv, MARK, SP);
3075 char *junk = SvPV(*SP, na);
3077 TAINT_PROPER("exec");
3080 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), na));
3082 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), na));
3092 dSP; dMARK; dTARGET;
3095 value = (I32)apply(op->op_type, MARK, SP);
3100 DIE(no_func, "Unsupported function kill");
3108 XPUSHi( getppid() );
3111 DIE(no_func, "getppid");
3127 value = (I32)BSD_GETPGRP(pid);
3129 if (pid != 0 && pid != getpid())
3130 DIE("POSIX getpgrp can't take an argument");
3131 value = (I32)getpgrp();
3136 DIE(no_func, "getpgrp()");
3155 TAINT_PROPER("setpgrp");
3157 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
3159 if ((pgrp != 0 && pgrp != getpid())) || (pid != 0 && pid != getpid()))
3160 DIE("POSIX setpgrp can't take an argument");
3161 SETi( setpgrp() >= 0 );
3162 #endif /* USE_BSDPGRP */
3165 DIE(no_func, "setpgrp()");
3174 #ifdef HAS_GETPRIORITY
3177 SETi( getpriority(which, who) );
3180 DIE(no_func, "getpriority()");
3190 #ifdef HAS_SETPRIORITY
3194 TAINT_PROPER("setpriority");
3195 SETi( setpriority(which, who, niceval) >= 0 );
3198 DIE(no_func, "setpriority()");
3208 XPUSHn( time(Null(Time_t*)) );
3210 XPUSHi( time(Null(Time_t*)) );
3215 /* XXX The POSIX name is CLK_TCK; it is to be preferred
3216 to HZ. Probably. For now, assume that if the system
3217 defines HZ, it does so correctly. (Will this break
3219 Probably we ought to use _sysconf(_SC_CLK_TCK), if
3220 it's supported. --AD 9/96.
3236 DIE("times not implemented");
3241 (void)times(×buf);
3243 (void)times((tbuffer_t *)×buf); /* time.h uses different name for */
3244 /* struct tms, though same data */
3248 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_utime)/HZ)));
3249 if (GIMME == G_ARRAY) {
3250 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_stime)/HZ)));
3251 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_cutime)/HZ)));
3252 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_cstime)/HZ)));
3255 #endif /* HAS_TIMES */
3260 return pp_gmtime(ARGS);
3268 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
3269 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
3270 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
3276 when = (Time_t)SvNVx(POPs);
3278 when = (Time_t)SvIVx(POPs);
3281 if (op->op_type == OP_LOCALTIME)
3282 tmbuf = localtime(&when);
3284 tmbuf = gmtime(&when);
3288 if (GIMME != G_ARRAY) {
3293 sprintf(mybuf, "%s %s %2d %02d:%02d:%02d %d",
3294 dayname[tmbuf->tm_wday],
3295 monname[tmbuf->tm_mon],
3300 tmbuf->tm_year + 1900);
3301 PUSHp(mybuf, strlen(mybuf));
3304 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_sec)));
3305 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_min)));
3306 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_hour)));
3307 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mday)));
3308 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mon)));
3309 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_year)));
3310 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_wday)));
3311 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_yday)));
3312 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_isdst)));
3323 anum = alarm((unsigned int)anum);
3330 DIE(no_func, "Unsupported function alarm");
3341 (void)time(&lasttime);
3346 sleep((unsigned int)duration);
3349 XPUSHi(when - lasttime);
3353 /* Shared memory. */
3357 return pp_semget(ARGS);
3362 return pp_semctl(ARGS);
3367 return pp_shmwrite(ARGS);
3372 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3373 dSP; dMARK; dTARGET;
3374 I32 value = (I32)(do_shmio(op->op_type, MARK, SP) >= 0);
3379 return pp_semget(ARGS);
3383 /* Message passing. */
3387 return pp_semget(ARGS);
3392 return pp_semctl(ARGS);
3397 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3398 dSP; dMARK; dTARGET;
3399 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
3404 return pp_semget(ARGS);
3410 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3411 dSP; dMARK; dTARGET;
3412 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
3417 return pp_semget(ARGS);
3425 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3426 dSP; dMARK; dTARGET;
3427 int anum = do_ipcget(op->op_type, MARK, SP);
3434 DIE("System V IPC is not implemented on this machine");
3440 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3441 dSP; dMARK; dTARGET;
3442 int anum = do_ipcctl(op->op_type, MARK, SP);
3450 PUSHp("0 but true",10);
3454 return pp_semget(ARGS);
3460 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3461 dSP; dMARK; dTARGET;
3462 I32 value = (I32)(do_semop(MARK, SP) >= 0);
3467 return pp_semget(ARGS);
3471 /* Get system info. */
3476 return pp_ghostent(ARGS);
3478 DIE(no_sock_func, "gethostbyname");
3485 return pp_ghostent(ARGS);
3487 DIE(no_sock_func, "gethostbyaddr");
3495 I32 which = op->op_type;
3496 register char **elem;
3498 struct hostent *gethostbyname();
3499 struct hostent *gethostbyaddr();
3500 #ifdef HAS_GETHOSTENT
3501 struct hostent *gethostent();
3503 struct hostent *hent;
3507 if (which == OP_GHBYNAME) {
3508 hent = gethostbyname(POPp);
3510 else if (which == OP_GHBYADDR) {
3511 int addrtype = POPi;
3514 char *addr = SvPV(addrsv, addrlen);
3516 hent = gethostbyaddr(addr, addrlen, addrtype);
3519 #ifdef HAS_GETHOSTENT
3520 hent = gethostent();
3522 DIE("gethostent not implemented");
3525 #ifdef HOST_NOT_FOUND
3527 STATUS_NATIVE_SET(h_errno);
3530 if (GIMME != G_ARRAY) {
3531 PUSHs(sv = sv_newmortal());
3533 if (which == OP_GHBYNAME) {
3535 sv_setpvn(sv, hent->h_addr, hent->h_length);
3538 sv_setpv(sv, (char*)hent->h_name);
3544 PUSHs(sv = sv_mortalcopy(&sv_no));
3545 sv_setpv(sv, (char*)hent->h_name);
3546 PUSHs(sv = sv_mortalcopy(&sv_no));
3547 for (elem = hent->h_aliases; elem && *elem; elem++) {
3548 sv_catpv(sv, *elem);
3550 sv_catpvn(sv, " ", 1);
3552 PUSHs(sv = sv_mortalcopy(&sv_no));
3553 sv_setiv(sv, (IV)hent->h_addrtype);
3554 PUSHs(sv = sv_mortalcopy(&sv_no));
3555 len = hent->h_length;
3556 sv_setiv(sv, (IV)len);
3558 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3559 XPUSHs(sv = sv_mortalcopy(&sv_no));
3560 sv_setpvn(sv, *elem, len);
3563 PUSHs(sv = sv_mortalcopy(&sv_no));
3565 sv_setpvn(sv, hent->h_addr, len);
3570 DIE(no_sock_func, "gethostent");
3577 return pp_gnetent(ARGS);
3579 DIE(no_sock_func, "getnetbyname");
3586 return pp_gnetent(ARGS);
3588 DIE(no_sock_func, "getnetbyaddr");
3596 I32 which = op->op_type;
3597 register char **elem;
3599 struct netent *getnetbyname();
3600 struct netent *getnetbyaddr();
3601 struct netent *getnetent();
3602 struct netent *nent;
3604 if (which == OP_GNBYNAME)
3605 nent = getnetbyname(POPp);
3606 else if (which == OP_GNBYADDR) {
3607 int addrtype = POPi;
3608 unsigned long addr = U_L(POPn);
3609 nent = getnetbyaddr((long)addr, addrtype);
3615 if (GIMME != G_ARRAY) {
3616 PUSHs(sv = sv_newmortal());
3618 if (which == OP_GNBYNAME)
3619 sv_setiv(sv, (IV)nent->n_net);
3621 sv_setpv(sv, nent->n_name);
3627 PUSHs(sv = sv_mortalcopy(&sv_no));
3628 sv_setpv(sv, nent->n_name);
3629 PUSHs(sv = sv_mortalcopy(&sv_no));
3630 for (elem = nent->n_aliases; *elem; elem++) {
3631 sv_catpv(sv, *elem);
3633 sv_catpvn(sv, " ", 1);
3635 PUSHs(sv = sv_mortalcopy(&sv_no));
3636 sv_setiv(sv, (IV)nent->n_addrtype);
3637 PUSHs(sv = sv_mortalcopy(&sv_no));
3638 sv_setiv(sv, (IV)nent->n_net);
3643 DIE(no_sock_func, "getnetent");
3650 return pp_gprotoent(ARGS);
3652 DIE(no_sock_func, "getprotobyname");
3659 return pp_gprotoent(ARGS);
3661 DIE(no_sock_func, "getprotobynumber");
3669 I32 which = op->op_type;
3670 register char **elem;
3672 struct protoent *getprotobyname();
3673 struct protoent *getprotobynumber();
3674 struct protoent *getprotoent();
3675 struct protoent *pent;
3677 if (which == OP_GPBYNAME)
3678 pent = getprotobyname(POPp);
3679 else if (which == OP_GPBYNUMBER)
3680 pent = getprotobynumber(POPi);
3682 pent = getprotoent();
3685 if (GIMME != G_ARRAY) {
3686 PUSHs(sv = sv_newmortal());
3688 if (which == OP_GPBYNAME)
3689 sv_setiv(sv, (IV)pent->p_proto);
3691 sv_setpv(sv, pent->p_name);
3697 PUSHs(sv = sv_mortalcopy(&sv_no));
3698 sv_setpv(sv, pent->p_name);
3699 PUSHs(sv = sv_mortalcopy(&sv_no));
3700 for (elem = pent->p_aliases; *elem; elem++) {
3701 sv_catpv(sv, *elem);
3703 sv_catpvn(sv, " ", 1);
3705 PUSHs(sv = sv_mortalcopy(&sv_no));
3706 sv_setiv(sv, (IV)pent->p_proto);
3711 DIE(no_sock_func, "getprotoent");
3718 return pp_gservent(ARGS);
3720 DIE(no_sock_func, "getservbyname");
3727 return pp_gservent(ARGS);
3729 DIE(no_sock_func, "getservbyport");
3737 I32 which = op->op_type;
3738 register char **elem;
3740 struct servent *getservbyname();
3741 struct servent *getservbynumber();
3742 struct servent *getservent();
3743 struct servent *sent;
3745 if (which == OP_GSBYNAME) {
3749 if (proto && !*proto)
3752 sent = getservbyname(name, proto);
3754 else if (which == OP_GSBYPORT) {
3756 unsigned short port = POPu;
3761 sent = getservbyport(port, proto);
3764 sent = getservent();
3767 if (GIMME != G_ARRAY) {
3768 PUSHs(sv = sv_newmortal());
3770 if (which == OP_GSBYNAME) {
3772 sv_setiv(sv, (IV)ntohs(sent->s_port));
3774 sv_setiv(sv, (IV)(sent->s_port));
3778 sv_setpv(sv, sent->s_name);
3784 PUSHs(sv = sv_mortalcopy(&sv_no));
3785 sv_setpv(sv, sent->s_name);
3786 PUSHs(sv = sv_mortalcopy(&sv_no));
3787 for (elem = sent->s_aliases; *elem; elem++) {
3788 sv_catpv(sv, *elem);
3790 sv_catpvn(sv, " ", 1);
3792 PUSHs(sv = sv_mortalcopy(&sv_no));
3794 sv_setiv(sv, (IV)ntohs(sent->s_port));
3796 sv_setiv(sv, (IV)(sent->s_port));
3798 PUSHs(sv = sv_mortalcopy(&sv_no));
3799 sv_setpv(sv, sent->s_proto);
3804 DIE(no_sock_func, "getservent");
3815 DIE(no_sock_func, "sethostent");
3826 DIE(no_sock_func, "setnetent");
3837 DIE(no_sock_func, "setprotoent");
3848 DIE(no_sock_func, "setservent");
3860 DIE(no_sock_func, "endhostent");
3872 DIE(no_sock_func, "endnetent");
3884 DIE(no_sock_func, "endprotoent");
3896 DIE(no_sock_func, "endservent");
3903 return pp_gpwent(ARGS);
3905 DIE(no_func, "getpwnam");
3912 return pp_gpwent(ARGS);
3914 DIE(no_func, "getpwuid");
3922 I32 which = op->op_type;
3924 struct passwd *pwent;
3926 if (which == OP_GPWNAM)
3927 pwent = getpwnam(POPp);
3928 else if (which == OP_GPWUID)
3929 pwent = getpwuid(POPi);
3931 pwent = (struct passwd *)getpwent();
3934 if (GIMME != G_ARRAY) {
3935 PUSHs(sv = sv_newmortal());
3937 if (which == OP_GPWNAM)
3938 sv_setiv(sv, (IV)pwent->pw_uid);
3940 sv_setpv(sv, pwent->pw_name);
3946 PUSHs(sv = sv_mortalcopy(&sv_no));
3947 sv_setpv(sv, pwent->pw_name);
3948 PUSHs(sv = sv_mortalcopy(&sv_no));
3949 sv_setpv(sv, pwent->pw_passwd);
3950 PUSHs(sv = sv_mortalcopy(&sv_no));
3951 sv_setiv(sv, (IV)pwent->pw_uid);
3952 PUSHs(sv = sv_mortalcopy(&sv_no));
3953 sv_setiv(sv, (IV)pwent->pw_gid);
3954 PUSHs(sv = sv_mortalcopy(&sv_no));
3956 sv_setiv(sv, (IV)pwent->pw_change);
3959 sv_setiv(sv, (IV)pwent->pw_quota);
3962 sv_setpv(sv, pwent->pw_age);
3966 PUSHs(sv = sv_mortalcopy(&sv_no));
3968 sv_setpv(sv, pwent->pw_class);
3971 sv_setpv(sv, pwent->pw_comment);
3974 PUSHs(sv = sv_mortalcopy(&sv_no));
3975 sv_setpv(sv, pwent->pw_gecos);
3976 PUSHs(sv = sv_mortalcopy(&sv_no));
3977 sv_setpv(sv, pwent->pw_dir);
3978 PUSHs(sv = sv_mortalcopy(&sv_no));
3979 sv_setpv(sv, pwent->pw_shell);
3981 PUSHs(sv = sv_mortalcopy(&sv_no));
3982 sv_setiv(sv, (IV)pwent->pw_expire);
3987 DIE(no_func, "getpwent");
3994 #if defined(HAS_PASSWD) && !defined(CYGWIN32)
3998 DIE(no_func, "setpwent");
4009 DIE(no_func, "endpwent");
4016 return pp_ggrent(ARGS);
4018 DIE(no_func, "getgrnam");
4025 return pp_ggrent(ARGS);
4027 DIE(no_func, "getgrgid");
4035 I32 which = op->op_type;
4036 register char **elem;
4038 struct group *grent;
4040 if (which == OP_GGRNAM)
4041 grent = (struct group *)getgrnam(POPp);
4042 else if (which == OP_GGRGID)
4043 grent = (struct group *)getgrgid(POPi);
4045 grent = (struct group *)getgrent();
4048 if (GIMME != G_ARRAY) {
4049 PUSHs(sv = sv_newmortal());
4051 if (which == OP_GGRNAM)
4052 sv_setiv(sv, (IV)grent->gr_gid);
4054 sv_setpv(sv, grent->gr_name);
4060 PUSHs(sv = sv_mortalcopy(&sv_no));
4061 sv_setpv(sv, grent->gr_name);
4062 PUSHs(sv = sv_mortalcopy(&sv_no));
4063 sv_setpv(sv, grent->gr_passwd);
4064 PUSHs(sv = sv_mortalcopy(&sv_no));
4065 sv_setiv(sv, (IV)grent->gr_gid);
4066 PUSHs(sv = sv_mortalcopy(&sv_no));
4067 for (elem = grent->gr_mem; *elem; elem++) {
4068 sv_catpv(sv, *elem);
4070 sv_catpvn(sv, " ", 1);
4076 DIE(no_func, "getgrent");
4087 DIE(no_func, "setgrent");
4098 DIE(no_func, "endgrent");
4108 if (!(tmps = getlogin()))
4110 PUSHp(tmps, strlen(tmps));
4113 DIE(no_func, "getlogin");
4117 /* Miscellaneous. */
4122 dSP; dMARK; dORIGMARK; dTARGET;
4123 register I32 items = SP - MARK;
4124 unsigned long a[20];
4130 while (++MARK <= SP) {
4131 if (SvTAINTED(*MARK)) {
4137 TAINT_PROPER("syscall");
4140 /* This probably won't work on machines where sizeof(long) != sizeof(int)
4141 * or where sizeof(long) != sizeof(char*). But such machines will
4142 * not likely have syscall implemented either, so who cares?
4144 while (++MARK <= SP) {
4145 if (SvNIOK(*MARK) || !i)
4146 a[i++] = SvIV(*MARK);
4147 else if (*MARK == &sv_undef)
4150 a[i++] = (unsigned long)SvPV_force(*MARK, na);
4156 DIE("Too many args to syscall");
4158 DIE("Too few args to syscall");
4160 retval = syscall(a[0]);
4163 retval = syscall(a[0],a[1]);
4166 retval = syscall(a[0],a[1],a[2]);
4169 retval = syscall(a[0],a[1],a[2],a[3]);
4172 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
4175 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
4178 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
4181 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
4185 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
4188 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
4191 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4195 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4199 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4203 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4204 a[10],a[11],a[12],a[13]);
4206 #endif /* atarist */
4212 DIE(no_func, "syscall");
4216 #ifdef FCNTL_EMULATE_FLOCK
4218 /* XXX Emulate flock() with fcntl().
4219 What's really needed is a good file locking module.
4223 fcntl_emulate_flock(fd, operation)
4229 switch (operation & ~LOCK_NB) {
4231 flock.l_type = F_RDLCK;
4234 flock.l_type = F_WRLCK;
4237 flock.l_type = F_UNLCK;
4243 flock.l_whence = SEEK_SET;
4244 flock.l_start = flock.l_len = 0L;
4246 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
4249 #endif /* FCNTL_EMULATE_FLOCK */
4251 #ifdef LOCKF_EMULATE_FLOCK
4253 /* XXX Emulate flock() with lockf(). This is just to increase
4254 portability of scripts. The calls are not completely
4255 interchangeable. What's really needed is a good file
4259 /* The lockf() constants might have been defined in <unistd.h>.
4260 Unfortunately, <unistd.h> causes troubles on some mixed
4261 (BSD/POSIX) systems, such as SunOS 4.1.3.
4263 Further, the lockf() constants aren't POSIX, so they might not be
4264 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
4265 just stick in the SVID values and be done with it. Sigh.
4269 # define F_ULOCK 0 /* Unlock a previously locked region */
4272 # define F_LOCK 1 /* Lock a region for exclusive use */
4275 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
4278 # define F_TEST 3 /* Test a region for other processes locks */
4282 lockf_emulate_flock (fd, operation)
4287 switch (operation) {
4289 /* LOCK_SH - get a shared lock */
4291 /* LOCK_EX - get an exclusive lock */
4293 i = lockf (fd, F_LOCK, 0);
4296 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
4297 case LOCK_SH|LOCK_NB:
4298 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
4299 case LOCK_EX|LOCK_NB:
4300 i = lockf (fd, F_TLOCK, 0);
4302 if ((errno == EAGAIN) || (errno == EACCES))
4303 errno = EWOULDBLOCK;
4306 /* LOCK_UN - unlock (non-blocking is a no-op) */
4308 case LOCK_UN|LOCK_NB:
4309 i = lockf (fd, F_ULOCK, 0);
4312 /* Default - can't decipher operation */
4321 #endif /* LOCKF_EMULATE_FLOCK */