3 * Copyright (c) 1991-1994, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * But only a short way ahead its floor and the walls on either side were
12 * cloven by a great fissure, out of which the red glare came, now leaping
13 * up, now dying down into darkness; and all the while far below there was
14 * a rumour and a trouble as of great engines throbbing and labouring.
20 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
26 # include <sys/wait.h>
30 # include <sys/resource.h>
33 /* Put this after #includes because fork and vfork prototypes may
40 #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */
41 # include <sys/socket.h>
45 # include <net/errno.h>
52 #include <sys/select.h>
64 struct passwd *getpwnam _((char *));
65 struct passwd *getpwuid _((Uid_t));
67 struct passwd *getpwent _((void));
74 struct group *getgrnam _((char *));
75 struct group *getgrgid _((Gid_t));
77 struct group *getgrent _((void));
90 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
91 static int dooneliner _((char *cmd, char *filename));
95 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
98 # define my_chsize chsize
103 #else /* no flock() */
105 /* fcntl.h might not have been included, even if it exists, because
106 the current Configure only sets I_FCNTL if it's needed to pick up
107 the *_OK constants. Make sure it has been included before testing
108 the fcntl() locking constants. */
109 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
113 # if defined(HAS_FCNTL) && defined(F_SETLK) && defined (F_SETLKW)
114 # define FLOCK fcntl_emulate_flock
115 # define FCNTL_EMULATE_FLOCK
116 # else /* no flock() or fcntl(F_SETLK,...) */
118 # define FLOCK lockf_emulate_flock
119 # define LOCKF_EMULATE_FLOCK
121 # endif /* no flock() or fcntl(F_SETLK,...) */
124 static int FLOCK _((int, int));
127 * These are the flock() constants. Since this sytems doesn't have
128 * flock(), the values of the constants are probably not available.
142 # endif /* emulating flock() */
144 #endif /* no flock() */
155 fp = my_popen(tmps, "r");
157 if (GIMME == G_SCALAR) {
158 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
159 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
170 if (sv_gets(sv, fp, 0) == Nullch) {
174 XPUSHs(sv_2mortal(sv));
175 if (SvLEN(sv) - SvCUR(sv) > 20) {
176 SvLEN_set(sv, SvCUR(sv)+1);
177 Renew(SvPVX(sv), SvLEN(sv), char);
182 STATUS_NATIVE_SET(my_pclose(fp));
183 TAINT; /* "I believe that this is not gratuitous!" */
186 STATUS_NATIVE_SET(-1);
187 if (GIMME == G_SCALAR)
199 SAVESPTR(last_in_gv); /* We don't want this to be permanent. */
200 last_in_gv = (GV*)*stack_sp--;
202 SAVESPTR(rs); /* This is not permanent, either. */
203 rs = sv_2mortal(newSVpv("", 1));
210 result = do_readline();
217 last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*stack_sp--)), na), TRUE,SVt_PVIO);
218 return do_readline();
223 last_in_gv = cGVOP->op_gv;
224 return do_readline();
231 if (SP - MARK != 1) {
233 do_join(TARG, &sv_no, MARK, SP);
234 tmps = SvPV(TARG, na);
238 tmps = SvPV(TOPs, na);
240 if (!tmps || !*tmps) {
241 SV *error = GvSV(errgv);
242 (void)SvUPGRADE(error, SVt_PV);
243 if (SvPOK(error) && SvCUR(error))
244 sv_catpv(error, "\t...caught");
245 tmps = SvPV(error, na);
248 tmps = "Warning: something's wrong";
257 if (SP - MARK != 1) {
259 do_join(TARG, &sv_no, MARK, SP);
260 tmps = SvPV(TARG, na);
264 tmps = SvPV(TOPs, na);
266 if (!tmps || !*tmps) {
267 SV *error = GvSV(errgv);
268 (void)SvUPGRADE(error, SVt_PV);
269 if (SvPOK(error) && SvCUR(error))
270 sv_catpv(error, "\t...propagated");
271 tmps = SvPV(error, na);
291 DIE(no_usym, "filehandle");
296 DIE(no_usym, "filehandle");
298 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
299 tmps = SvPV(sv, len);
300 if (do_open(gv, tmps, len, FALSE, 0, 0, Nullfp))
301 PUSHi( (I32)forkprocess );
302 else if (forkprocess == 0) /* we are a new child */
319 PUSHs( do_close(gv, TRUE) ? &sv_yes : &sv_no );
339 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
340 DIE(no_usym, "filehandle");
345 do_close(rgv, FALSE);
347 do_close(wgv, FALSE);
352 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
353 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
354 IoIFP(wstio) = IoOFP(wstio);
358 if (!IoIFP(rstio) || !IoOFP(wstio)) {
359 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
361 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
371 DIE(no_func, "pipe");
384 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
386 PUSHi(PerlIO_fileno(fp));
402 TAINT_PROPER("umask");
405 DIE(no_func, "Unsupported function umask");
423 if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
428 if (!PerlIO_flush(fp) && (fp->_flag |= _IOBIN))
433 if (setmode(PerlIO_fileno(fp), OP_BINARY) != -1)
439 #if defined(USEMYBINMODE)
440 if (my_binmode(fp,IoTYPE(io)) != NULL)
459 SV **mark = stack_base + ++*markstack_ptr; /* reuse in entersub */
460 I32 markoff = mark - stack_base - 1;
462 bool oldmustcatch = mustcatch;
465 if (SvTYPE(varsv) == SVt_PVHV)
466 methname = "TIEHASH";
467 else if (SvTYPE(varsv) == SVt_PVAV)
468 methname = "TIEARRAY";
469 else if (SvTYPE(varsv) == SVt_PVGV)
470 methname = "TIEHANDLE";
472 methname = "TIESCALAR";
474 stash = gv_stashsv(mark[1], FALSE);
475 if (!stash || !(gv = gv_fetchmethod(stash, methname)))
476 DIE("Can't locate object method \"%s\" via package \"%s\"",
477 methname, SvPV(mark[1],na));
479 Zero(&myop, 1, BINOP);
480 myop.op_last = (OP *) &myop;
481 myop.op_next = Nullop;
482 myop.op_flags = OPf_KNOW|OPf_STACKED;
488 if (perldb && curstash != debstash)
489 op->op_private |= OPpENTERSUB_DB;
491 XPUSHs((SV*)GvCV(gv));
494 if (op = pp_entersub())
498 mustcatch = oldmustcatch;
500 if (sv_isobject(sv)) {
501 if (SvTYPE(varsv) == SVt_PVHV || SvTYPE(varsv) == SVt_PVAV) {
502 sv_unmagic(varsv, 'P');
503 sv_magic(varsv, sv, 'P', Nullch, 0);
506 sv_unmagic(varsv, 'q');
507 sv_magic(varsv, sv, 'q', Nullch, 0);
511 SP = stack_base + markoff;
526 if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
527 mg = mg_find(sv, 'P') ;
529 mg = mg_find(sv, 'q') ;
531 if (mg && SvREFCNT(SvRV(mg->mg_obj)) > 1)
532 warn("untie attempted while %lu inner references still exist",
533 (unsigned long)SvREFCNT(SvRV(mg->mg_obj)) - 1 ) ;
537 if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
552 if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
553 mg = mg_find(sv, 'P') ;
555 mg = mg_find(sv, 'q') ;
558 PUSHs(sv_2mortal(newSVsv(mg->mg_obj))) ;
575 bool oldmustcatch = mustcatch;
579 sv = sv_mortalcopy(&sv_no);
580 sv_setpv(sv, "AnyDBM_File");
581 stash = gv_stashsv(sv, FALSE);
582 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
584 perl_require_pv("AnyDBM_File.pm");
586 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
587 DIE("No dbm on this machine");
590 Zero(&myop, 1, BINOP);
591 myop.op_last = (OP *) &myop;
592 myop.op_next = Nullop;
593 myop.op_flags = OPf_KNOW|OPf_STACKED;
599 if (perldb && curstash != debstash)
600 op->op_private |= OPpENTERSUB_DB;
608 PUSHs(sv_2mortal(newSViv(O_RDWR|O_CREAT)));
610 PUSHs(sv_2mortal(newSViv(O_RDWR)));
612 PUSHs((SV*)GvCV(gv));
615 if (op = pp_entersub())
619 if (!sv_isobject(TOPs)) {
627 PUSHs(sv_2mortal(newSViv(O_RDONLY)));
629 PUSHs((SV*)GvCV(gv));
632 if (op = pp_entersub())
637 mustcatch = oldmustcatch;
638 if (sv_isobject(TOPs))
639 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
646 return pp_untie(ARGS);
660 struct timeval timebuf;
661 struct timeval *tbuf = &timebuf;
664 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
669 # if BYTEORDER & 0xf0000
670 # define ORDERBYTE (0x88888888 - BYTEORDER)
672 # define ORDERBYTE (0x4444 - BYTEORDER)
678 for (i = 1; i <= 3; i++) {
686 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
687 #if defined(__linux__) || defined(OS2)
688 growsize = sizeof(fd_set);
690 growsize = maxlen; /* little endians can use vecs directly */
699 masksize = NFDBITS / NBBY;
701 masksize = sizeof(long); /* documented int, everyone seems to use long */
703 growsize = maxlen + (masksize - (maxlen % masksize));
704 Zero(&fd_sets[0], 4, char*);
712 timebuf.tv_sec = (long)value;
713 value -= (double)timebuf.tv_sec;
714 timebuf.tv_usec = (long)(value * 1000000.0);
717 tbuf = Null(struct timeval*);
719 for (i = 1; i <= 3; i++) {
726 SvPV_force(sv,na); /* force string conversion */
729 Sv_Grow(sv, growsize);
733 while (++j <= growsize) {
737 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
739 New(403, fd_sets[i], growsize, char);
740 for (offset = 0; offset < growsize; offset += masksize) {
741 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
742 fd_sets[i][j+offset] = s[(k % masksize) + offset];
745 fd_sets[i] = SvPVX(sv);
751 (Select_fd_set_t) fd_sets[1],
752 (Select_fd_set_t) fd_sets[2],
753 (Select_fd_set_t) fd_sets[3],
755 for (i = 1; i <= 3; i++) {
758 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
760 for (offset = 0; offset < growsize; offset += masksize) {
761 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
762 s[(k % masksize) + offset] = fd_sets[i][j+offset];
764 Safefree(fd_sets[i]);
771 if (GIMME == G_ARRAY && tbuf) {
772 value = (double)(timebuf.tv_sec) +
773 (double)(timebuf.tv_usec) / 1000000.0;
774 PUSHs(sv = sv_mortalcopy(&sv_no));
779 DIE("select not implemented");
788 (void)SvREFCNT_inc(gv);
790 SvREFCNT_dec(defoutgv);
800 newdefout = (op->op_private > 0) ? ((GV *) POPs) : NULL;
802 egv = GvEGV(defoutgv);
809 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
810 if (gvp && *gvp == egv) {
811 gv_efullname3(TARG, defoutgv, Nullch);
815 XPUSHs(sv_2mortal(newRV((SV*)egv)));
820 if (!GvIO(newdefout))
822 setdefout(newdefout);
839 if (!gv || do_eof(gv)) /* make sure we have fp with something */
843 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
850 return pp_sysread(ARGS);
859 register CONTEXT *cx;
861 AV* padlist = CvPADLIST(cv);
862 SV** svp = AvARRAY(padlist);
868 PUSHBLOCK(cx, CXt_SUB, stack_sp);
871 curpad = AvARRAY((AV*)svp[1]);
873 setdefout(gv); /* locally select filehandle so $% et al work */
905 SV *tmpsv = sv_newmortal();
906 gv_efullname3(tmpsv, fgv, Nullch);
907 DIE("Undefined format \"%s\" called",SvPVX(tmpsv));
909 DIE("Not a format reference");
912 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
914 IoFLAGS(io) &= ~IOf_DIDTOP;
915 return doform(cv,gv,op->op_next);
921 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
922 register IO *io = GvIOp(gv);
923 PerlIO *ofp = IoOFP(io);
927 register CONTEXT *cx;
929 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
930 (long)IoLINES_LEFT(io), (long)FmLINES(formtarget)));
931 if (IoLINES_LEFT(io) < FmLINES(formtarget) &&
932 formtarget != toptarget)
940 if (!IoTOP_NAME(io)) {
942 IoFMT_NAME(io) = savepv(GvNAME(gv));
943 sprintf(tmpbuf, "%s_TOP", IoFMT_NAME(io));
944 topgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVFM);
945 if ((topgv && GvFORM(topgv)) ||
946 !gv_fetchpv("top",FALSE,SVt_PVFM))
947 IoTOP_NAME(io) = savepv(tmpbuf);
949 IoTOP_NAME(io) = savepv("top");
951 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
952 if (!topgv || !GvFORM(topgv)) {
953 IoLINES_LEFT(io) = 100000000;
956 IoTOP_GV(io) = topgv;
958 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
959 I32 lines = IoLINES_LEFT(io);
960 char *s = SvPVX(formtarget);
961 if (lines <= 0) /* Yow, header didn't even fit!!! */
963 while (lines-- > 0) {
970 PerlIO_write(ofp, SvPVX(formtarget), s - SvPVX(formtarget));
971 sv_chop(formtarget, s);
972 FmLINES(formtarget) -= IoLINES_LEFT(io);
975 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
976 PerlIO_write(ofp, SvPVX(formfeed), SvCUR(formfeed));
977 IoLINES_LEFT(io) = IoPAGE_LEN(io);
979 formtarget = toptarget;
980 IoFLAGS(io) |= IOf_DIDTOP;
983 DIE("bad top format reference");
986 SV *tmpsv = sv_newmortal();
987 gv_efullname3(tmpsv, fgv, Nullch);
988 DIE("Undefined top format \"%s\" called",SvPVX(tmpsv));
991 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
992 return doform(cv,gv,op);
1004 warn("Filehandle only opened for input");
1006 warn("Write on closed filehandle");
1011 if ((IoLINES_LEFT(io) -= FmLINES(formtarget)) < 0) {
1013 warn("page overflow");
1015 if (!PerlIO_write(ofp, SvPVX(formtarget), SvCUR(formtarget)) ||
1019 FmLINES(formtarget) = 0;
1020 SvCUR_set(formtarget, 0);
1021 *SvEND(formtarget) = '\0';
1022 if (IoFLAGS(io) & IOf_FLUSH)
1023 (void)PerlIO_flush(fp);
1027 formtarget = bodytarget;
1029 return pop_return();
1034 dSP; dMARK; dORIGMARK;
1038 SV *sv = NEWSV(0,0);
1040 if (op->op_flags & OPf_STACKED)
1044 if (!(io = GvIO(gv))) {
1046 gv_fullname3(sv, gv, Nullch);
1047 warn("Filehandle %s never opened", SvPV(sv,na));
1049 SETERRNO(EBADF,RMS$_IFI);
1052 else if (!(fp = IoOFP(io))) {
1054 gv_fullname3(sv, gv, Nullch);
1056 warn("Filehandle %s opened only for input", SvPV(sv,na));
1058 warn("printf on closed filehandle %s", SvPV(sv,na));
1060 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1064 #ifdef USE_LOCALE_NUMERIC
1065 if (op->op_private & OPpLOCALE)
1066 SET_NUMERIC_LOCAL();
1068 SET_NUMERIC_STANDARD();
1070 do_sprintf(sv, SP - MARK, MARK + 1);
1071 if (!do_print(sv, fp))
1074 if (IoFLAGS(io) & IOf_FLUSH)
1075 if (PerlIO_flush(fp) == EOF)
1107 tmps = SvPV(sv, len);
1108 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1109 IoLINES(GvIOp(gv)) = 0;
1120 dSP; dMARK; dORIGMARK; dTARGET;
1135 sv_setpvn(bufsv, "", 0);
1136 buffer = SvPV_force(bufsv, blen);
1137 length = SvIVx(*++MARK);
1139 DIE("Negative length");
1142 offset = SvIVx(*++MARK);
1146 if (!io || !IoIFP(io))
1149 if (op->op_type == OP_RECV) {
1150 bufsize = sizeof buf;
1151 buffer = SvGROW(bufsv, length+1);
1152 /* 'offset' means 'flags' here */
1153 length = recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1154 (struct sockaddr *)buf, &bufsize);
1157 SvCUR_set(bufsv, length);
1158 *SvEND(bufsv) = '\0';
1159 (void)SvPOK_only(bufsv);
1161 /* This should not be marked tainted if the fp is marked clean */
1162 if (!(IoFLAGS(io) & IOf_UNTAINT))
1163 SvTAINTED_on(bufsv);
1165 sv_setpvn(TARG, buf, bufsize);
1170 if (op->op_type == OP_RECV)
1171 DIE(no_sock_func, "recv");
1175 DIE("Offset outside string");
1178 bufsize = SvCUR(bufsv);
1179 buffer = SvGROW(bufsv, length+offset+1);
1180 if (offset > bufsize) { /* Zero any newly allocated space */
1181 Zero(buffer+bufsize, offset-bufsize, char);
1183 if (op->op_type == OP_SYSREAD) {
1184 length = read(PerlIO_fileno(IoIFP(io)), buffer+offset, length);
1187 #ifdef HAS_SOCKET__bad_code_maybe
1188 if (IoTYPE(io) == 's') {
1189 bufsize = sizeof buf;
1190 length = recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
1191 (struct sockaddr *)buf, &bufsize);
1195 length = PerlIO_read(IoIFP(io), buffer+offset, length);
1198 SvCUR_set(bufsv, length+offset);
1199 *SvEND(bufsv) = '\0';
1200 (void)SvPOK_only(bufsv);
1202 /* This should not be marked tainted if the fp is marked clean */
1203 if (!(IoFLAGS(io) & IOf_UNTAINT))
1204 SvTAINTED_on(bufsv);
1216 return pp_send(ARGS);
1221 dSP; dMARK; dORIGMARK; dTARGET;
1234 buffer = SvPV(bufsv, blen);
1235 length = SvIVx(*++MARK);
1237 DIE("Negative length");
1240 if (!io || !IoIFP(io)) {
1243 if (op->op_type == OP_SYSWRITE)
1244 warn("Syswrite on closed filehandle");
1246 warn("Send on closed socket");
1249 else if (op->op_type == OP_SYSWRITE) {
1251 offset = SvIVx(*++MARK);
1254 DIE("Offset outside string");
1256 } else if (offset >= blen)
1257 DIE("Offset outside string");
1260 if (length > blen - offset)
1261 length = blen - offset;
1262 length = write(PerlIO_fileno(IoIFP(io)), buffer+offset, length);
1265 else if (SP > MARK) {
1268 sockbuf = SvPVx(*++MARK, mlen);
1269 length = sendto(PerlIO_fileno(IoIFP(io)), buffer, blen, length,
1270 (struct sockaddr *)sockbuf, mlen);
1273 length = send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1276 DIE(no_sock_func, "send");
1291 return pp_sysread(ARGS);
1302 gv = last_in_gv = (GV*)POPs;
1303 PUSHs(!gv || do_eof(gv) ? &sv_yes : &sv_no);
1315 gv = last_in_gv = (GV*)POPs;
1316 PUSHi( do_tell(gv) );
1327 gv = last_in_gv = (GV*)POPs;
1328 PUSHs( do_seek(gv, offset, whence) ? &sv_yes : &sv_no );
1335 Off_t len = (Off_t)POPn;
1340 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
1341 if (op->op_flags & OPf_SPECIAL) {
1342 tmpgv = gv_fetchpv(POPp,FALSE, SVt_PVIO);
1344 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1346 ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1348 my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1354 if (SvTYPE(sv) == SVt_PVGV) {
1355 tmpgv = (GV*)sv; /* *main::FRED for example */
1358 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1359 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
1363 if (truncate (SvPV (sv, na), len) < 0)
1369 if ((tmpfd = open(SvPV (sv, na), O_RDWR)) < 0)
1372 if (my_chsize(tmpfd, len) < 0)
1383 SETERRNO(EBADF,RMS$_IFI);
1386 DIE("truncate not implemented");
1392 return pp_ioctl(ARGS);
1399 unsigned int func = U_I(POPn);
1400 int optype = op->op_type;
1406 if (!io || !argsv || !IoIFP(io)) {
1407 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
1411 if (SvPOK(argsv) || !SvNIOK(argsv)) {
1413 s = SvPV_force(argsv, len);
1414 retval = IOCPARM_LEN(func);
1416 s = Sv_Grow(argsv, retval+1);
1417 SvCUR_set(argsv, retval);
1420 s[SvCUR(argsv)] = 17; /* a little sanity check here */
1423 retval = SvIV(argsv);
1425 s = (char*)(long)retval; /* ouch */
1427 s = (char*)retval; /* ouch */
1431 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1433 if (optype == OP_IOCTL)
1435 retval = ioctl(PerlIO_fileno(IoIFP(io)), func, s);
1437 DIE("ioctl is not implemented");
1441 #if defined(OS2) && defined(__EMX__)
1442 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
1444 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
1447 DIE("fcntl is not implemented");
1451 if (s[SvCUR(argsv)] != 17)
1452 DIE("Possible memory corruption: %s overflowed 3rd argument",
1454 s[SvCUR(argsv)] = 0; /* put our null back */
1455 SvSETMAGIC(argsv); /* Assume it has changed */
1464 PUSHp("0 but true", 10);
1484 fp = IoIFP(GvIOp(gv));
1488 value = (I32)(FLOCK(PerlIO_fileno(fp), argtype) >= 0);
1495 DIE(no_func, "flock()");
1507 int protocol = POPi;
1515 SETERRNO(EBADF,LIB$_INVARG);
1521 do_close(gv, FALSE);
1523 TAINT_PROPER("socket");
1524 fd = socket(domain, type, protocol);
1527 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
1528 IoOFP(io) = PerlIO_fdopen(fd, "w");
1530 if (!IoIFP(io) || !IoOFP(io)) {
1531 if (IoIFP(io)) PerlIO_close(IoIFP(io));
1532 if (IoOFP(io)) PerlIO_close(IoOFP(io));
1533 if (!IoIFP(io) && !IoOFP(io)) close(fd);
1539 DIE(no_sock_func, "socket");
1546 #ifdef HAS_SOCKETPAIR
1551 int protocol = POPi;
1564 do_close(gv1, FALSE);
1566 do_close(gv2, FALSE);
1568 TAINT_PROPER("socketpair");
1569 if (socketpair(domain, type, protocol, fd) < 0)
1571 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
1572 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
1574 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
1575 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
1577 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
1578 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
1579 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
1580 if (!IoIFP(io1) && !IoOFP(io1)) close(fd[0]);
1581 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
1582 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
1583 if (!IoIFP(io2) && !IoOFP(io2)) close(fd[1]);
1589 DIE(no_sock_func, "socketpair");
1600 register IO *io = GvIOn(gv);
1603 if (!io || !IoIFP(io))
1606 addr = SvPV(addrsv, len);
1607 TAINT_PROPER("bind");
1608 if (bind(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1615 warn("bind() on closed fd");
1616 SETERRNO(EBADF,SS$_IVCHAN);
1619 DIE(no_sock_func, "bind");
1630 register IO *io = GvIOn(gv);
1633 if (!io || !IoIFP(io))
1636 addr = SvPV(addrsv, len);
1637 TAINT_PROPER("connect");
1638 if (connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1645 warn("connect() on closed fd");
1646 SETERRNO(EBADF,SS$_IVCHAN);
1649 DIE(no_sock_func, "connect");
1659 register IO *io = GvIOn(gv);
1661 if (!io || !IoIFP(io))
1664 if (listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
1671 warn("listen() on closed fd");
1672 SETERRNO(EBADF,SS$_IVCHAN);
1675 DIE(no_sock_func, "listen");
1687 struct sockaddr saddr; /* use a struct to avoid alignment problems */
1688 int len = sizeof saddr;
1700 if (!gstio || !IoIFP(gstio))
1705 do_close(ngv, FALSE);
1707 fd = accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
1710 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
1711 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
1712 IoTYPE(nstio) = 's';
1713 if (!IoIFP(nstio) || !IoOFP(nstio)) {
1714 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
1715 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
1716 if (!IoIFP(nstio) && !IoOFP(nstio)) close(fd);
1720 PUSHp((char *)&saddr, len);
1725 warn("accept() on closed fd");
1726 SETERRNO(EBADF,SS$_IVCHAN);
1732 DIE(no_sock_func, "accept");
1742 register IO *io = GvIOn(gv);
1744 if (!io || !IoIFP(io))
1747 PUSHi( shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
1752 warn("shutdown() on closed fd");
1753 SETERRNO(EBADF,SS$_IVCHAN);
1756 DIE(no_sock_func, "shutdown");
1763 return pp_ssockopt(ARGS);
1765 DIE(no_sock_func, "getsockopt");
1773 int optype = op->op_type;
1776 unsigned int optname;
1782 if (optype == OP_GSOCKOPT)
1783 sv = sv_2mortal(NEWSV(22, 257));
1786 optname = (unsigned int) POPi;
1787 lvl = (unsigned int) POPi;
1791 if (!io || !IoIFP(io))
1794 fd = PerlIO_fileno(IoIFP(io));
1798 (void)SvPOK_only(sv);
1802 if (getsockopt(fd, lvl, optname, SvPVX(sv), &aint) < 0)
1812 buf = SvPV(sv, len);
1813 else if (SvOK(sv)) {
1814 aint = (int)SvIV(sv);
1818 if (setsockopt(fd, lvl, optname, buf, (int)len) < 0)
1828 warn("[gs]etsockopt() on closed fd");
1829 SETERRNO(EBADF,SS$_IVCHAN);
1834 DIE(no_sock_func, "setsockopt");
1841 return pp_getpeername(ARGS);
1843 DIE(no_sock_func, "getsockname");
1851 int optype = op->op_type;
1855 register IO *io = GvIOn(gv);
1858 if (!io || !IoIFP(io))
1861 sv = sv_2mortal(NEWSV(22, 257));
1862 (void)SvPOK_only(sv);
1866 fd = PerlIO_fileno(IoIFP(io));
1868 case OP_GETSOCKNAME:
1869 if (getsockname(fd, (struct sockaddr *)SvPVX(sv), &aint) < 0)
1872 case OP_GETPEERNAME:
1873 if (getpeername(fd, (struct sockaddr *)SvPVX(sv), &aint) < 0)
1877 #ifdef BOGUS_GETNAME_RETURN
1878 /* Interactive Unix, getpeername() and getsockname()
1879 does not return valid namelen */
1880 if (aint == BOGUS_GETNAME_RETURN)
1881 aint = sizeof(struct sockaddr);
1890 warn("get{sock, peer}name() on closed fd");
1891 SETERRNO(EBADF,SS$_IVCHAN);
1896 DIE(no_sock_func, "getpeername");
1904 return pp_stat(ARGS);
1913 if (op->op_flags & OPf_REF) {
1914 tmpgv = cGVOP->op_gv;
1916 if (tmpgv != defgv) {
1917 laststype = OP_STAT;
1919 sv_setpv(statname, "");
1920 laststatval = (GvIO(tmpgv) && IoIFP(GvIOp(tmpgv))
1921 ? Fstat(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), &statcache) : -1);
1923 if (laststatval < 0)
1928 if (SvTYPE(sv) == SVt_PVGV) {
1932 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1933 tmpgv = (GV*)SvRV(sv);
1936 sv_setpv(statname, SvPV(sv,na));
1939 laststype = op->op_type;
1940 if (op->op_type == OP_LSTAT)
1941 laststatval = lstat(SvPV(statname, na), &statcache);
1944 laststatval = Stat(SvPV(statname, na), &statcache);
1945 if (laststatval < 0) {
1946 if (dowarn && strchr(SvPV(statname, na), '\n'))
1947 warn(warn_nl, "stat");
1952 if (GIMME != G_ARRAY) {
1963 PUSHs(sv_2mortal(newSViv((I32)statcache.st_dev)));
1964 PUSHs(sv_2mortal(newSViv((I32)statcache.st_ino)));
1965 PUSHs(sv_2mortal(newSViv((I32)statcache.st_mode)));
1966 PUSHs(sv_2mortal(newSViv((I32)statcache.st_nlink)));
1967 PUSHs(sv_2mortal(newSViv((I32)statcache.st_uid)));
1968 PUSHs(sv_2mortal(newSViv((I32)statcache.st_gid)));
1969 #ifdef USE_STAT_RDEV
1970 PUSHs(sv_2mortal(newSViv((I32)statcache.st_rdev)));
1972 PUSHs(sv_2mortal(newSVpv("", 0)));
1974 PUSHs(sv_2mortal(newSViv((I32)statcache.st_size)));
1976 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_atime)));
1977 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_mtime)));
1978 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_ctime)));
1980 PUSHs(sv_2mortal(newSViv((I32)statcache.st_atime)));
1981 PUSHs(sv_2mortal(newSViv((I32)statcache.st_mtime)));
1982 PUSHs(sv_2mortal(newSViv((I32)statcache.st_ctime)));
1984 #ifdef USE_STAT_BLOCKS
1985 PUSHs(sv_2mortal(newSViv((I32)statcache.st_blksize)));
1986 PUSHs(sv_2mortal(newSViv((I32)statcache.st_blocks)));
1988 PUSHs(sv_2mortal(newSVpv("", 0)));
1989 PUSHs(sv_2mortal(newSVpv("", 0)));
1997 I32 result = my_stat(ARGS);
2001 if (cando(S_IRUSR, 0, &statcache))
2008 I32 result = my_stat(ARGS);
2012 if (cando(S_IWUSR, 0, &statcache))
2019 I32 result = my_stat(ARGS);
2023 if (cando(S_IXUSR, 0, &statcache))
2030 I32 result = my_stat(ARGS);
2034 if (cando(S_IRUSR, 1, &statcache))
2041 I32 result = my_stat(ARGS);
2045 if (cando(S_IWUSR, 1, &statcache))
2052 I32 result = my_stat(ARGS);
2056 if (cando(S_IXUSR, 1, &statcache))
2063 I32 result = my_stat(ARGS);
2072 return pp_ftrowned(ARGS);
2077 I32 result = my_stat(ARGS);
2081 if (statcache.st_uid == (op->op_type == OP_FTEOWNED ? euid : uid) )
2088 I32 result = my_stat(ARGS);
2092 if (!statcache.st_size)
2099 I32 result = my_stat(ARGS);
2103 PUSHi(statcache.st_size);
2109 I32 result = my_stat(ARGS);
2113 PUSHn( ((I32)basetime - (I32)statcache.st_mtime) / 86400.0 );
2119 I32 result = my_stat(ARGS);
2123 PUSHn( ((I32)basetime - (I32)statcache.st_atime) / 86400.0 );
2129 I32 result = my_stat(ARGS);
2133 PUSHn( ((I32)basetime - (I32)statcache.st_ctime) / 86400.0 );
2139 I32 result = my_stat(ARGS);
2143 if (S_ISSOCK(statcache.st_mode))
2150 I32 result = my_stat(ARGS);
2154 if (S_ISCHR(statcache.st_mode))
2161 I32 result = my_stat(ARGS);
2165 if (S_ISBLK(statcache.st_mode))
2172 I32 result = my_stat(ARGS);
2176 if (S_ISREG(statcache.st_mode))
2183 I32 result = my_stat(ARGS);
2187 if (S_ISDIR(statcache.st_mode))
2194 I32 result = my_stat(ARGS);
2198 if (S_ISFIFO(statcache.st_mode))
2205 I32 result = my_lstat(ARGS);
2209 if (S_ISLNK(statcache.st_mode))
2218 I32 result = my_stat(ARGS);
2222 if (statcache.st_mode & S_ISUID)
2232 I32 result = my_stat(ARGS);
2236 if (statcache.st_mode & S_ISGID)
2246 I32 result = my_stat(ARGS);
2250 if (statcache.st_mode & S_ISVTX)
2262 if (op->op_flags & OPf_REF) {
2267 gv = gv_fetchpv(tmps = POPp, FALSE, SVt_PVIO);
2268 if (GvIO(gv) && IoIFP(GvIOp(gv)))
2269 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
2270 else if (isDIGIT(*tmps))
2279 #if defined(atarist) /* this will work with atariST. Configure will
2280 make guesses for other systems. */
2281 # define FILE_base(f) ((f)->_base)
2282 # define FILE_ptr(f) ((f)->_ptr)
2283 # define FILE_cnt(f) ((f)->_cnt)
2284 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
2294 register STDCHAR *s;
2299 if (op->op_flags & OPf_REF)
2301 else if (isGV(TOPs))
2303 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2304 gv = (GV*)SvRV(POPs);
2315 goto really_filename;
2321 sv_setpv(statname, "");
2324 if (io && IoIFP(io)) {
2325 if (! PerlIO_has_base(IoIFP(io)))
2326 DIE("-T and -B not implemented on filehandles");
2327 laststatval = Fstat(PerlIO_fileno(IoIFP(io)), &statcache);
2328 if (laststatval < 0)
2330 if (S_ISDIR(statcache.st_mode)) /* handle NFS glitch */
2331 if (op->op_type == OP_FTTEXT)
2335 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
2336 i = PerlIO_getc(IoIFP(io));
2338 (void)PerlIO_ungetc(IoIFP(io),i);
2340 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
2342 len = PerlIO_get_bufsiz(IoIFP(io));
2343 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
2344 /* sfio can have large buffers - limit to 512 */
2350 warn("Test on unopened file <%s>",
2351 GvENAME(cGVOP->op_gv));
2352 SETERRNO(EBADF,RMS$_IFI);
2361 sv_setpv(statname, SvPV(sv, na));
2363 i = open(SvPV(sv, na), O_RDONLY, 0);
2365 i = open(SvPV(sv, na), 0);
2368 if (dowarn && strchr(SvPV(sv, na), '\n'))
2369 warn(warn_nl, "open");
2372 laststatval = Fstat(i, &statcache);
2373 if (laststatval < 0)
2375 len = read(i, tbuf, 512);
2378 if (S_ISDIR(statcache.st_mode) && op->op_type == OP_FTTEXT)
2379 RETPUSHNO; /* special case NFS directories */
2380 RETPUSHYES; /* null file is anything */
2385 /* now scan s to look for textiness */
2386 /* XXX ASCII dependent code */
2388 for (i = 0; i < len; i++, s++) {
2389 if (!*s) { /* null never allowed in text */
2396 *s != '\n' && *s != '\r' && *s != '\b' &&
2397 *s != '\t' && *s != '\f' && *s != 27)
2401 if ((odd * 3 > len) == (op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
2409 return pp_fttext(ARGS);
2424 if (!tmps || !*tmps) {
2425 svp = hv_fetch(GvHVn(envgv), "HOME", 4, FALSE);
2427 tmps = SvPV(*svp, na);
2429 if (!tmps || !*tmps) {
2430 svp = hv_fetch(GvHVn(envgv), "LOGDIR", 6, FALSE);
2432 tmps = SvPV(*svp, na);
2434 TAINT_PROPER("chdir");
2435 PUSHi( chdir(tmps) >= 0 );
2437 /* Clear the DEFAULT element of ENV so we'll get the new value
2439 hv_delete(GvHVn(envgv),"DEFAULT",7,G_DISCARD);
2446 dSP; dMARK; dTARGET;
2449 value = (I32)apply(op->op_type, MARK, SP);
2454 DIE(no_func, "Unsupported function chown");
2464 TAINT_PROPER("chroot");
2465 PUSHi( chroot(tmps) >= 0 );
2468 DIE(no_func, "chroot");
2474 dSP; dMARK; dTARGET;
2476 value = (I32)apply(op->op_type, MARK, SP);
2484 dSP; dMARK; dTARGET;
2486 value = (I32)apply(op->op_type, MARK, SP);
2494 dSP; dMARK; dTARGET;
2496 value = (I32)apply(op->op_type, MARK, SP);
2508 char *tmps = SvPV(TOPs, na);
2509 TAINT_PROPER("rename");
2511 anum = rename(tmps, tmps2);
2513 if (!(anum = Stat(tmps, &statbuf))) {
2514 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
2517 if (euid || Stat(tmps2, &statbuf) < 0 || !S_ISDIR(statbuf.st_mode))
2518 (void)UNLINK(tmps2);
2519 if (!(anum = link(tmps, tmps2)))
2520 anum = UNLINK(tmps);
2533 char *tmps = SvPV(TOPs, na);
2534 TAINT_PROPER("link");
2535 SETi( link(tmps, tmps2) >= 0 );
2537 DIE(no_func, "Unsupported function link");
2547 char *tmps = SvPV(TOPs, na);
2548 TAINT_PROPER("symlink");
2549 SETi( symlink(tmps, tmps2) >= 0 );
2552 DIE(no_func, "symlink");
2563 len = readlink(tmps, buf, sizeof buf);
2571 RETSETUNDEF; /* just pretend it's a normal file */
2575 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
2577 dooneliner(cmd, filename)
2583 *save_filename = filename;
2589 for (s = mybuf+strlen(mybuf); *filename; ) {
2594 myfp = my_popen(mybuf, "r");
2597 /* Need to save/restore 'rs' ?? */
2598 s = sv_gets(tmpsv, myfp, 0);
2599 (void)my_pclose(myfp);
2601 for (errno = 1; errno < sys_nerr; errno++) {
2602 #ifdef HAS_SYS_ERRLIST
2603 if (instr(mybuf, sys_errlist[errno])) /* you don't see this */
2606 char *errmsg; /* especially if it isn't there */
2609 (errmsg = strerror(errno)) ? errmsg : "NoErRoR"))
2615 #define EACCES EPERM
2617 if (instr(mybuf, "cannot make"))
2618 SETERRNO(EEXIST,RMS$_FEX);
2619 else if (instr(mybuf, "existing file"))
2620 SETERRNO(EEXIST,RMS$_FEX);
2621 else if (instr(mybuf, "ile exists"))
2622 SETERRNO(EEXIST,RMS$_FEX);
2623 else if (instr(mybuf, "non-exist"))
2624 SETERRNO(ENOENT,RMS$_FNF);
2625 else if (instr(mybuf, "does not exist"))
2626 SETERRNO(ENOENT,RMS$_FNF);
2627 else if (instr(mybuf, "not empty"))
2628 SETERRNO(EBUSY,SS$_DEVOFFLINE);
2629 else if (instr(mybuf, "cannot access"))
2630 SETERRNO(EACCES,RMS$_PRV);
2632 SETERRNO(EPERM,RMS$_PRV);
2635 else { /* some mkdirs return no failure indication */
2636 anum = (Stat(save_filename, &statbuf) >= 0);
2637 if (op->op_type == OP_RMDIR)
2642 SETERRNO(EACCES,RMS$_PRV); /* a guess */
2658 char *tmps = SvPV(TOPs, na);
2660 TAINT_PROPER("mkdir");
2662 SETi( mkdir(tmps, mode) >= 0 );
2664 SETi( dooneliner("mkdir", tmps) );
2665 oldumask = umask(0);
2667 chmod(tmps, (mode & ~oldumask) & 0777);
2678 TAINT_PROPER("rmdir");
2680 XPUSHi( rmdir(tmps) >= 0 );
2682 XPUSHi( dooneliner("rmdir", tmps) );
2687 /* Directory calls. */
2692 #if defined(Direntry_t) && defined(HAS_READDIR)
2693 char *dirname = POPp;
2695 register IO *io = GvIOn(gv);
2701 closedir(IoDIRP(io));
2702 if (!(IoDIRP(io) = opendir(dirname)))
2708 SETERRNO(EBADF,RMS$_DIR);
2711 DIE(no_dir_func, "opendir");
2718 #if defined(Direntry_t) && defined(HAS_READDIR)
2720 Direntry_t *readdir _((DIR *));
2722 register Direntry_t *dp;
2724 register IO *io = GvIOn(gv);
2726 if (!io || !IoDIRP(io))
2729 if (GIMME == G_ARRAY) {
2731 while (dp = (Direntry_t *)readdir(IoDIRP(io))) {
2733 XPUSHs(sv_2mortal(newSVpv(dp->d_name, dp->d_namlen)));
2735 XPUSHs(sv_2mortal(newSVpv(dp->d_name, 0)));
2740 if (!(dp = (Direntry_t *)readdir(IoDIRP(io))))
2743 XPUSHs(sv_2mortal(newSVpv(dp->d_name, dp->d_namlen)));
2745 XPUSHs(sv_2mortal(newSVpv(dp->d_name, 0)));
2752 SETERRNO(EBADF,RMS$_ISI);
2753 if (GIMME == G_ARRAY)
2758 DIE(no_dir_func, "readdir");
2765 #if defined(HAS_TELLDIR) || defined(telldir)
2766 #if !defined(telldir) && !defined(HAS_TELLDIR_PROTOTYPE)
2767 long telldir _((DIR *));
2770 register IO *io = GvIOn(gv);
2772 if (!io || !IoDIRP(io))
2775 PUSHi( telldir(IoDIRP(io)) );
2779 SETERRNO(EBADF,RMS$_ISI);
2782 DIE(no_dir_func, "telldir");
2789 #if defined(HAS_SEEKDIR) || defined(seekdir)
2792 register IO *io = GvIOn(gv);
2794 if (!io || !IoDIRP(io))
2797 (void)seekdir(IoDIRP(io), along);
2802 SETERRNO(EBADF,RMS$_ISI);
2805 DIE(no_dir_func, "seekdir");
2812 #if defined(HAS_REWINDDIR) || defined(rewinddir)
2814 register IO *io = GvIOn(gv);
2816 if (!io || !IoDIRP(io))
2819 (void)rewinddir(IoDIRP(io));
2823 SETERRNO(EBADF,RMS$_ISI);
2826 DIE(no_dir_func, "rewinddir");
2833 #if defined(Direntry_t) && defined(HAS_READDIR)
2835 register IO *io = GvIOn(gv);
2837 if (!io || !IoDIRP(io))
2840 #ifdef VOID_CLOSEDIR
2841 closedir(IoDIRP(io));
2843 if (closedir(IoDIRP(io)) < 0) {
2844 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
2853 SETERRNO(EBADF,RMS$_IFI);
2856 DIE(no_dir_func, "closedir");
2860 /* Process control. */
2875 if (tmpgv = gv_fetchpv("$", TRUE, SVt_PV))
2876 sv_setiv(GvSV(tmpgv), (I32)getpid());
2877 hv_clear(pidstatus); /* no kids, so don't wait for 'em */
2882 DIE(no_func, "Unsupported function fork");
2888 #if !defined(DOSISH) || defined(OS2)
2893 childpid = wait4pid(-1, &argflags, 0);
2894 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
2898 DIE(no_func, "Unsupported function wait");
2904 #if !defined(DOSISH) || defined(OS2)
2912 childpid = wait4pid(childpid, &argflags, optype);
2913 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
2917 DIE(no_func, "Unsupported function wait");
2923 dSP; dMARK; dORIGMARK; dTARGET;
2928 Sigsave_t ihand,qhand; /* place to save signals during system() */
2930 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2)
2931 if (SP - MARK == 1) {
2933 char *junk = SvPV(TOPs, na);
2935 TAINT_PROPER("system");
2938 while ((childpid = vfork()) == -1) {
2939 if (errno != EAGAIN) {
2948 rsignal_save(SIGINT, SIG_IGN, &ihand);
2949 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
2951 result = wait4pid(childpid, &status, 0);
2952 } while (result == -1 && errno == EINTR);
2953 (void)rsignal_restore(SIGINT, &ihand);
2954 (void)rsignal_restore(SIGQUIT, &qhand);
2955 STATUS_NATIVE_SET(result == -1 ? -1 : status);
2956 do_execfree(); /* free any memory child malloced on vfork */
2958 PUSHi(STATUS_CURRENT);
2961 if (op->op_flags & OPf_STACKED) {
2962 SV *really = *++MARK;
2963 value = (I32)do_aexec(really, MARK, SP);
2965 else if (SP - MARK != 1)
2966 value = (I32)do_aexec(Nullsv, MARK, SP);
2968 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), na));
2971 #else /* ! FORK or VMS or OS/2 */
2972 if (op->op_flags & OPf_STACKED) {
2973 SV *really = *++MARK;
2974 value = (I32)do_aspawn(really, MARK, SP);
2976 else if (SP - MARK != 1)
2977 value = (I32)do_aspawn(Nullsv, MARK, SP);
2979 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), na));
2981 STATUS_NATIVE_SET(value);
2984 PUSHi(STATUS_CURRENT);
2985 #endif /* !FORK or VMS */
2991 dSP; dMARK; dORIGMARK; dTARGET;
2994 if (op->op_flags & OPf_STACKED) {
2995 SV *really = *++MARK;
2996 value = (I32)do_aexec(really, MARK, SP);
2998 else if (SP - MARK != 1)
3000 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
3002 value = (I32)do_aexec(Nullsv, MARK, SP);
3006 char *junk = SvPV(*SP, na);
3008 TAINT_PROPER("exec");
3011 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), na));
3013 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), na));
3023 dSP; dMARK; dTARGET;
3026 value = (I32)apply(op->op_type, MARK, SP);
3031 DIE(no_func, "Unsupported function kill");
3039 XPUSHi( getppid() );
3042 DIE(no_func, "getppid");
3058 value = (I32)BSD_GETPGRP(pid);
3060 if (pid != 0 && pid != getpid())
3061 DIE("POSIX getpgrp can't take an argument");
3062 value = (I32)getpgrp();
3067 DIE(no_func, "getpgrp()");
3086 TAINT_PROPER("setpgrp");
3088 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
3090 if ((pgrp != 0 && pgrp != getpid())) || (pid != 0 && pid != getpid()))
3091 DIE("POSIX setpgrp can't take an argument");
3092 SETi( setpgrp() >= 0 );
3093 #endif /* USE_BSDPGRP */
3096 DIE(no_func, "setpgrp()");
3105 #ifdef HAS_GETPRIORITY
3108 SETi( getpriority(which, who) );
3111 DIE(no_func, "getpriority()");
3121 #ifdef HAS_SETPRIORITY
3125 TAINT_PROPER("setpriority");
3126 SETi( setpriority(which, who, niceval) >= 0 );
3129 DIE(no_func, "setpriority()");
3139 XPUSHn( time(Null(Time_t*)) );
3141 XPUSHi( time(Null(Time_t*)) );
3146 /* XXX The POSIX name is CLK_TCK; it is to be preferred
3147 to HZ. Probably. For now, assume that if the system
3148 defines HZ, it does so correctly. (Will this break
3150 Probably we ought to use _sysconf(_SC_CLK_TCK), if
3151 it's supported. --AD 9/96.
3167 DIE("times not implemented");
3172 (void)times(×buf);
3174 (void)times((tbuffer_t *)×buf); /* time.h uses different name for */
3175 /* struct tms, though same data */
3179 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_utime)/HZ)));
3180 if (GIMME == G_ARRAY) {
3181 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_stime)/HZ)));
3182 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_cutime)/HZ)));
3183 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_cstime)/HZ)));
3186 #endif /* HAS_TIMES */
3191 return pp_gmtime(ARGS);
3199 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
3200 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
3201 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
3207 when = (Time_t)SvNVx(POPs);
3209 when = (Time_t)SvIVx(POPs);
3212 if (op->op_type == OP_LOCALTIME)
3213 tmbuf = localtime(&when);
3215 tmbuf = gmtime(&when);
3219 if (GIMME != G_ARRAY) {
3224 sprintf(mybuf, "%s %s %2d %02d:%02d:%02d %d",
3225 dayname[tmbuf->tm_wday],
3226 monname[tmbuf->tm_mon],
3231 tmbuf->tm_year + 1900);
3232 PUSHp(mybuf, strlen(mybuf));
3235 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_sec)));
3236 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_min)));
3237 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_hour)));
3238 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mday)));
3239 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mon)));
3240 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_year)));
3241 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_wday)));
3242 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_yday)));
3243 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_isdst)));
3254 anum = alarm((unsigned int)anum);
3261 DIE(no_func, "Unsupported function alarm");
3272 (void)time(&lasttime);
3277 sleep((unsigned int)duration);
3280 XPUSHi(when - lasttime);
3284 /* Shared memory. */
3288 return pp_semget(ARGS);
3293 return pp_semctl(ARGS);
3298 return pp_shmwrite(ARGS);
3303 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3304 dSP; dMARK; dTARGET;
3305 I32 value = (I32)(do_shmio(op->op_type, MARK, SP) >= 0);
3310 return pp_semget(ARGS);
3314 /* Message passing. */
3318 return pp_semget(ARGS);
3323 return pp_semctl(ARGS);
3328 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3329 dSP; dMARK; dTARGET;
3330 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
3335 return pp_semget(ARGS);
3341 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3342 dSP; dMARK; dTARGET;
3343 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
3348 return pp_semget(ARGS);
3356 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3357 dSP; dMARK; dTARGET;
3358 int anum = do_ipcget(op->op_type, MARK, SP);
3365 DIE("System V IPC is not implemented on this machine");
3371 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3372 dSP; dMARK; dTARGET;
3373 int anum = do_ipcctl(op->op_type, MARK, SP);
3381 PUSHp("0 but true",10);
3385 return pp_semget(ARGS);
3391 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3392 dSP; dMARK; dTARGET;
3393 I32 value = (I32)(do_semop(MARK, SP) >= 0);
3398 return pp_semget(ARGS);
3402 /* Get system info. */
3407 return pp_ghostent(ARGS);
3409 DIE(no_sock_func, "gethostbyname");
3416 return pp_ghostent(ARGS);
3418 DIE(no_sock_func, "gethostbyaddr");
3426 I32 which = op->op_type;
3427 register char **elem;
3429 struct hostent *gethostbyname();
3430 struct hostent *gethostbyaddr();
3431 #ifdef HAS_GETHOSTENT
3432 struct hostent *gethostent();
3434 struct hostent *hent;
3438 if (which == OP_GHBYNAME) {
3439 hent = gethostbyname(POPp);
3441 else if (which == OP_GHBYADDR) {
3442 int addrtype = POPi;
3445 char *addr = SvPV(addrsv, addrlen);
3447 hent = gethostbyaddr(addr, addrlen, addrtype);
3450 #ifdef HAS_GETHOSTENT
3451 hent = gethostent();
3453 DIE("gethostent not implemented");
3456 #ifdef HOST_NOT_FOUND
3458 STATUS_NATIVE_SET(h_errno);
3461 if (GIMME != G_ARRAY) {
3462 PUSHs(sv = sv_newmortal());
3464 if (which == OP_GHBYNAME) {
3466 sv_setpvn(sv, hent->h_addr, hent->h_length);
3469 sv_setpv(sv, (char*)hent->h_name);
3475 PUSHs(sv = sv_mortalcopy(&sv_no));
3476 sv_setpv(sv, (char*)hent->h_name);
3477 PUSHs(sv = sv_mortalcopy(&sv_no));
3478 for (elem = hent->h_aliases; elem && *elem; elem++) {
3479 sv_catpv(sv, *elem);
3481 sv_catpvn(sv, " ", 1);
3483 PUSHs(sv = sv_mortalcopy(&sv_no));
3484 sv_setiv(sv, (I32)hent->h_addrtype);
3485 PUSHs(sv = sv_mortalcopy(&sv_no));
3486 len = hent->h_length;
3487 sv_setiv(sv, (I32)len);
3489 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3490 XPUSHs(sv = sv_mortalcopy(&sv_no));
3491 sv_setpvn(sv, *elem, len);
3494 PUSHs(sv = sv_mortalcopy(&sv_no));
3496 sv_setpvn(sv, hent->h_addr, len);
3501 DIE(no_sock_func, "gethostent");
3508 return pp_gnetent(ARGS);
3510 DIE(no_sock_func, "getnetbyname");
3517 return pp_gnetent(ARGS);
3519 DIE(no_sock_func, "getnetbyaddr");
3527 I32 which = op->op_type;
3528 register char **elem;
3530 struct netent *getnetbyname();
3531 struct netent *getnetbyaddr();
3532 struct netent *getnetent();
3533 struct netent *nent;
3535 if (which == OP_GNBYNAME)
3536 nent = getnetbyname(POPp);
3537 else if (which == OP_GNBYADDR) {
3538 int addrtype = POPi;
3539 unsigned long addr = U_L(POPn);
3540 nent = getnetbyaddr((long)addr, addrtype);
3546 if (GIMME != G_ARRAY) {
3547 PUSHs(sv = sv_newmortal());
3549 if (which == OP_GNBYNAME)
3550 sv_setiv(sv, (I32)nent->n_net);
3552 sv_setpv(sv, nent->n_name);
3558 PUSHs(sv = sv_mortalcopy(&sv_no));
3559 sv_setpv(sv, nent->n_name);
3560 PUSHs(sv = sv_mortalcopy(&sv_no));
3561 for (elem = nent->n_aliases; *elem; elem++) {
3562 sv_catpv(sv, *elem);
3564 sv_catpvn(sv, " ", 1);
3566 PUSHs(sv = sv_mortalcopy(&sv_no));
3567 sv_setiv(sv, (I32)nent->n_addrtype);
3568 PUSHs(sv = sv_mortalcopy(&sv_no));
3569 sv_setiv(sv, (I32)nent->n_net);
3574 DIE(no_sock_func, "getnetent");
3581 return pp_gprotoent(ARGS);
3583 DIE(no_sock_func, "getprotobyname");
3590 return pp_gprotoent(ARGS);
3592 DIE(no_sock_func, "getprotobynumber");
3600 I32 which = op->op_type;
3601 register char **elem;
3603 struct protoent *getprotobyname();
3604 struct protoent *getprotobynumber();
3605 struct protoent *getprotoent();
3606 struct protoent *pent;
3608 if (which == OP_GPBYNAME)
3609 pent = getprotobyname(POPp);
3610 else if (which == OP_GPBYNUMBER)
3611 pent = getprotobynumber(POPi);
3613 pent = getprotoent();
3616 if (GIMME != G_ARRAY) {
3617 PUSHs(sv = sv_newmortal());
3619 if (which == OP_GPBYNAME)
3620 sv_setiv(sv, (I32)pent->p_proto);
3622 sv_setpv(sv, pent->p_name);
3628 PUSHs(sv = sv_mortalcopy(&sv_no));
3629 sv_setpv(sv, pent->p_name);
3630 PUSHs(sv = sv_mortalcopy(&sv_no));
3631 for (elem = pent->p_aliases; *elem; elem++) {
3632 sv_catpv(sv, *elem);
3634 sv_catpvn(sv, " ", 1);
3636 PUSHs(sv = sv_mortalcopy(&sv_no));
3637 sv_setiv(sv, (I32)pent->p_proto);
3642 DIE(no_sock_func, "getprotoent");
3649 return pp_gservent(ARGS);
3651 DIE(no_sock_func, "getservbyname");
3658 return pp_gservent(ARGS);
3660 DIE(no_sock_func, "getservbyport");
3668 I32 which = op->op_type;
3669 register char **elem;
3671 struct servent *getservbyname();
3672 struct servent *getservbynumber();
3673 struct servent *getservent();
3674 struct servent *sent;
3676 if (which == OP_GSBYNAME) {
3680 if (proto && !*proto)
3683 sent = getservbyname(name, proto);
3685 else if (which == OP_GSBYPORT) {
3687 unsigned short port = POPu;
3692 sent = getservbyport(port, proto);
3695 sent = getservent();
3698 if (GIMME != G_ARRAY) {
3699 PUSHs(sv = sv_newmortal());
3701 if (which == OP_GSBYNAME) {
3703 sv_setiv(sv, (I32)ntohs(sent->s_port));
3705 sv_setiv(sv, (I32)(sent->s_port));
3709 sv_setpv(sv, sent->s_name);
3715 PUSHs(sv = sv_mortalcopy(&sv_no));
3716 sv_setpv(sv, sent->s_name);
3717 PUSHs(sv = sv_mortalcopy(&sv_no));
3718 for (elem = sent->s_aliases; *elem; elem++) {
3719 sv_catpv(sv, *elem);
3721 sv_catpvn(sv, " ", 1);
3723 PUSHs(sv = sv_mortalcopy(&sv_no));
3725 sv_setiv(sv, (I32)ntohs(sent->s_port));
3727 sv_setiv(sv, (I32)(sent->s_port));
3729 PUSHs(sv = sv_mortalcopy(&sv_no));
3730 sv_setpv(sv, sent->s_proto);
3735 DIE(no_sock_func, "getservent");
3746 DIE(no_sock_func, "sethostent");
3757 DIE(no_sock_func, "setnetent");
3768 DIE(no_sock_func, "setprotoent");
3779 DIE(no_sock_func, "setservent");
3791 DIE(no_sock_func, "endhostent");
3803 DIE(no_sock_func, "endnetent");
3815 DIE(no_sock_func, "endprotoent");
3827 DIE(no_sock_func, "endservent");
3834 return pp_gpwent(ARGS);
3836 DIE(no_func, "getpwnam");
3843 return pp_gpwent(ARGS);
3845 DIE(no_func, "getpwuid");
3853 I32 which = op->op_type;
3855 struct passwd *pwent;
3857 if (which == OP_GPWNAM)
3858 pwent = getpwnam(POPp);
3859 else if (which == OP_GPWUID)
3860 pwent = getpwuid(POPi);
3862 pwent = (struct passwd *)getpwent();
3865 if (GIMME != G_ARRAY) {
3866 PUSHs(sv = sv_newmortal());
3868 if (which == OP_GPWNAM)
3869 sv_setiv(sv, (I32)pwent->pw_uid);
3871 sv_setpv(sv, pwent->pw_name);
3877 PUSHs(sv = sv_mortalcopy(&sv_no));
3878 sv_setpv(sv, pwent->pw_name);
3879 PUSHs(sv = sv_mortalcopy(&sv_no));
3880 sv_setpv(sv, pwent->pw_passwd);
3881 PUSHs(sv = sv_mortalcopy(&sv_no));
3882 sv_setiv(sv, (I32)pwent->pw_uid);
3883 PUSHs(sv = sv_mortalcopy(&sv_no));
3884 sv_setiv(sv, (I32)pwent->pw_gid);
3885 PUSHs(sv = sv_mortalcopy(&sv_no));
3887 sv_setiv(sv, (I32)pwent->pw_change);
3890 sv_setiv(sv, (I32)pwent->pw_quota);
3893 sv_setpv(sv, pwent->pw_age);
3897 PUSHs(sv = sv_mortalcopy(&sv_no));
3899 sv_setpv(sv, pwent->pw_class);
3902 sv_setpv(sv, pwent->pw_comment);
3905 PUSHs(sv = sv_mortalcopy(&sv_no));
3906 sv_setpv(sv, pwent->pw_gecos);
3907 PUSHs(sv = sv_mortalcopy(&sv_no));
3908 sv_setpv(sv, pwent->pw_dir);
3909 PUSHs(sv = sv_mortalcopy(&sv_no));
3910 sv_setpv(sv, pwent->pw_shell);
3912 PUSHs(sv = sv_mortalcopy(&sv_no));
3913 sv_setiv(sv, (I32)pwent->pw_expire);
3918 DIE(no_func, "getpwent");
3929 DIE(no_func, "setpwent");
3940 DIE(no_func, "endpwent");
3947 return pp_ggrent(ARGS);
3949 DIE(no_func, "getgrnam");
3956 return pp_ggrent(ARGS);
3958 DIE(no_func, "getgrgid");
3966 I32 which = op->op_type;
3967 register char **elem;
3969 struct group *grent;
3971 if (which == OP_GGRNAM)
3972 grent = (struct group *)getgrnam(POPp);
3973 else if (which == OP_GGRGID)
3974 grent = (struct group *)getgrgid(POPi);
3976 grent = (struct group *)getgrent();
3979 if (GIMME != G_ARRAY) {
3980 PUSHs(sv = sv_newmortal());
3982 if (which == OP_GGRNAM)
3983 sv_setiv(sv, (I32)grent->gr_gid);
3985 sv_setpv(sv, grent->gr_name);
3991 PUSHs(sv = sv_mortalcopy(&sv_no));
3992 sv_setpv(sv, grent->gr_name);
3993 PUSHs(sv = sv_mortalcopy(&sv_no));
3994 sv_setpv(sv, grent->gr_passwd);
3995 PUSHs(sv = sv_mortalcopy(&sv_no));
3996 sv_setiv(sv, (I32)grent->gr_gid);
3997 PUSHs(sv = sv_mortalcopy(&sv_no));
3998 for (elem = grent->gr_mem; *elem; elem++) {
3999 sv_catpv(sv, *elem);
4001 sv_catpvn(sv, " ", 1);
4007 DIE(no_func, "getgrent");
4018 DIE(no_func, "setgrent");
4029 DIE(no_func, "endgrent");
4039 if (!(tmps = getlogin()))
4041 PUSHp(tmps, strlen(tmps));
4044 DIE(no_func, "getlogin");
4048 /* Miscellaneous. */
4053 dSP; dMARK; dORIGMARK; dTARGET;
4054 register I32 items = SP - MARK;
4055 unsigned long a[20];
4061 while (++MARK <= SP) {
4062 if (SvTAINTED(*MARK)) {
4068 TAINT_PROPER("syscall");
4071 /* This probably won't work on machines where sizeof(long) != sizeof(int)
4072 * or where sizeof(long) != sizeof(char*). But such machines will
4073 * not likely have syscall implemented either, so who cares?
4075 while (++MARK <= SP) {
4076 if (SvNIOK(*MARK) || !i)
4077 a[i++] = SvIV(*MARK);
4078 else if (*MARK == &sv_undef)
4081 a[i++] = (unsigned long)SvPV_force(*MARK, na);
4087 DIE("Too many args to syscall");
4089 DIE("Too few args to syscall");
4091 retval = syscall(a[0]);
4094 retval = syscall(a[0],a[1]);
4097 retval = syscall(a[0],a[1],a[2]);
4100 retval = syscall(a[0],a[1],a[2],a[3]);
4103 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
4106 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
4109 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
4112 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
4116 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
4119 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
4122 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4126 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4130 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4134 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4135 a[10],a[11],a[12],a[13]);
4137 #endif /* atarist */
4143 DIE(no_func, "syscall");
4147 #ifdef FCNTL_EMULATE_FLOCK
4149 /* XXX Emulate flock() with fcntl().
4150 What's really needed is a good file locking module.
4154 fcntl_emulate_flock(fd, operation)
4160 switch (operation & ~LOCK_NB) {
4162 flock.l_type = F_RDLCK;
4165 flock.l_type = F_WRLCK;
4168 flock.l_type = F_UNLCK;
4174 flock.l_whence = SEEK_SET;
4175 flock.l_start = flock.l_len = 0L;
4177 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
4180 #endif /* FCNTL_EMULATE_FLOCK */
4182 #ifdef LOCKF_EMULATE_FLOCK
4184 /* XXX Emulate flock() with lockf(). This is just to increase
4185 portability of scripts. The calls are not completely
4186 interchangeable. What's really needed is a good file
4190 /* The lockf() constants might have been defined in <unistd.h>.
4191 Unfortunately, <unistd.h> causes troubles on some mixed
4192 (BSD/POSIX) systems, such as SunOS 4.1.3.
4194 Further, the lockf() constants aren't POSIX, so they might not be
4195 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
4196 just stick in the SVID values and be done with it. Sigh.
4200 # define F_ULOCK 0 /* Unlock a previously locked region */
4203 # define F_LOCK 1 /* Lock a region for exclusive use */
4206 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
4209 # define F_TEST 3 /* Test a region for other processes locks */
4213 lockf_emulate_flock (fd, operation)
4218 switch (operation) {
4220 /* LOCK_SH - get a shared lock */
4222 /* LOCK_EX - get an exclusive lock */
4224 i = lockf (fd, F_LOCK, 0);
4227 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
4228 case LOCK_SH|LOCK_NB:
4229 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
4230 case LOCK_EX|LOCK_NB:
4231 i = lockf (fd, F_TLOCK, 0);
4233 if ((errno == EAGAIN) || (errno == EACCES))
4234 errno = EWOULDBLOCK;
4237 /* LOCK_UN - unlock (non-blocking is a no-op) */
4239 case LOCK_UN|LOCK_NB:
4240 i = lockf (fd, F_ULOCK, 0);
4243 /* Default - can't decipher operation */
4252 #endif /* LOCKF_EMULATE_FLOCK */