3 * Copyright (c) 1991-1997, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * But only a short way ahead its floor and the walls on either side were
12 * cloven by a great fissure, out of which the red glare came, now leaping
13 * up, now dying down into darkness; and all the while far below there was
14 * a rumour and a trouble as of great engines throbbing and labouring.
20 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
26 # include <sys/wait.h>
30 # include <sys/resource.h>
33 /* Put this after #includes because fork and vfork prototypes may
40 #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */
41 # include <sys/socket.h>
45 # include <net/errno.h>
52 #include <sys/select.h>
64 struct passwd *getpwnam _((char *));
65 struct passwd *getpwuid _((Uid_t));
67 struct passwd *getpwent _((void));
74 struct group *getgrnam _((char *));
75 struct group *getgrgid _((Gid_t));
77 struct group *getgrent _((void));
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);
841 if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) {
846 perl_call_method("GETC", GIMME);
849 if (GIMME == G_SCALAR)
850 SvSetSV_nosteal(TARG, TOPs);
853 if (!gv || do_eof(gv)) /* make sure we have fp with something */
857 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
864 return pp_sysread(ARGS);
873 register CONTEXT *cx;
875 AV* padlist = CvPADLIST(cv);
876 SV** svp = AvARRAY(padlist);
882 PUSHBLOCK(cx, CXt_SUB, stack_sp);
885 curpad = AvARRAY((AV*)svp[1]);
887 setdefout(gv); /* locally select filehandle so $% et al work */
919 SV *tmpsv = sv_newmortal();
920 gv_efullname3(tmpsv, fgv, Nullch);
921 DIE("Undefined format \"%s\" called",SvPVX(tmpsv));
923 DIE("Not a format reference");
926 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
928 IoFLAGS(io) &= ~IOf_DIDTOP;
929 return doform(cv,gv,op->op_next);
935 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
936 register IO *io = GvIOp(gv);
937 PerlIO *ofp = IoOFP(io);
941 register CONTEXT *cx;
943 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
944 (long)IoLINES_LEFT(io), (long)FmLINES(formtarget)));
945 if (IoLINES_LEFT(io) < FmLINES(formtarget) &&
946 formtarget != toptarget)
954 if (!IoTOP_NAME(io)) {
956 IoFMT_NAME(io) = savepv(GvNAME(gv));
957 sprintf(tmpbuf, "%s_TOP", IoFMT_NAME(io));
958 topgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVFM);
959 if ((topgv && GvFORM(topgv)) ||
960 !gv_fetchpv("top",FALSE,SVt_PVFM))
961 IoTOP_NAME(io) = savepv(tmpbuf);
963 IoTOP_NAME(io) = savepv("top");
965 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
966 if (!topgv || !GvFORM(topgv)) {
967 IoLINES_LEFT(io) = 100000000;
970 IoTOP_GV(io) = topgv;
972 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
973 I32 lines = IoLINES_LEFT(io);
974 char *s = SvPVX(formtarget);
975 if (lines <= 0) /* Yow, header didn't even fit!!! */
977 while (lines-- > 0) {
984 PerlIO_write(ofp, SvPVX(formtarget), s - SvPVX(formtarget));
985 sv_chop(formtarget, s);
986 FmLINES(formtarget) -= IoLINES_LEFT(io);
989 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
990 PerlIO_write(ofp, SvPVX(formfeed), SvCUR(formfeed));
991 IoLINES_LEFT(io) = IoPAGE_LEN(io);
993 formtarget = toptarget;
994 IoFLAGS(io) |= IOf_DIDTOP;
997 DIE("bad top format reference");
1000 SV *tmpsv = sv_newmortal();
1001 gv_efullname3(tmpsv, fgv, Nullch);
1002 DIE("Undefined top format \"%s\" called",SvPVX(tmpsv));
1005 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1006 return doform(cv,gv,op);
1018 warn("Filehandle only opened for input");
1020 warn("Write on closed filehandle");
1025 if ((IoLINES_LEFT(io) -= FmLINES(formtarget)) < 0) {
1027 warn("page overflow");
1029 if (!PerlIO_write(ofp, SvPVX(formtarget), SvCUR(formtarget)) ||
1033 FmLINES(formtarget) = 0;
1034 SvCUR_set(formtarget, 0);
1035 *SvEND(formtarget) = '\0';
1036 if (IoFLAGS(io) & IOf_FLUSH)
1037 (void)PerlIO_flush(fp);
1041 formtarget = bodytarget;
1043 return pop_return();
1048 dSP; dMARK; dORIGMARK;
1052 SV *sv = NEWSV(0,0);
1054 if (op->op_flags & OPf_STACKED)
1058 if (!(io = GvIO(gv))) {
1060 gv_fullname3(sv, gv, Nullch);
1061 warn("Filehandle %s never opened", SvPV(sv,na));
1063 SETERRNO(EBADF,RMS$_IFI);
1066 else if (!(fp = IoOFP(io))) {
1068 gv_fullname3(sv, gv, Nullch);
1070 warn("Filehandle %s opened only for input", SvPV(sv,na));
1072 warn("printf on closed filehandle %s", SvPV(sv,na));
1074 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1078 #ifdef USE_LOCALE_NUMERIC
1079 if (op->op_private & OPpLOCALE)
1080 SET_NUMERIC_LOCAL();
1082 SET_NUMERIC_STANDARD();
1084 do_sprintf(sv, SP - MARK, MARK + 1);
1085 if (!do_print(sv, fp))
1088 if (IoFLAGS(io) & IOf_FLUSH)
1089 if (PerlIO_flush(fp) == EOF)
1121 tmps = SvPV(sv, len);
1122 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1123 IoLINES(GvIOp(gv)) = 0;
1134 dSP; dMARK; dORIGMARK; dTARGET;
1140 Sock_size_t bufsize;
1146 if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) {
1152 perl_call_method("READ", G_SCALAR);
1165 sv_setpvn(bufsv, "", 0);
1166 buffer = SvPV_force(bufsv, blen);
1167 length = SvIVx(*++MARK);
1169 DIE("Negative length");
1172 offset = SvIVx(*++MARK);
1176 if (!io || !IoIFP(io))
1179 if (op->op_type == OP_RECV) {
1180 bufsize = sizeof buf;
1181 buffer = SvGROW(bufsv, length+1);
1182 /* 'offset' means 'flags' here */
1183 length = recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1184 (struct sockaddr *)buf, &bufsize);
1187 SvCUR_set(bufsv, length);
1188 *SvEND(bufsv) = '\0';
1189 (void)SvPOK_only(bufsv);
1191 /* This should not be marked tainted if the fp is marked clean */
1192 if (!(IoFLAGS(io) & IOf_UNTAINT))
1193 SvTAINTED_on(bufsv);
1195 sv_setpvn(TARG, buf, bufsize);
1200 if (op->op_type == OP_RECV)
1201 DIE(no_sock_func, "recv");
1205 DIE("Offset outside string");
1208 bufsize = SvCUR(bufsv);
1209 buffer = SvGROW(bufsv, length+offset+1);
1210 if (offset > bufsize) { /* Zero any newly allocated space */
1211 Zero(buffer+bufsize, offset-bufsize, char);
1213 if (op->op_type == OP_SYSREAD) {
1214 length = read(PerlIO_fileno(IoIFP(io)), buffer+offset, length);
1217 #ifdef HAS_SOCKET__bad_code_maybe
1218 if (IoTYPE(io) == 's') {
1219 bufsize = sizeof buf;
1220 length = recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
1221 (struct sockaddr *)buf, &bufsize);
1225 length = PerlIO_read(IoIFP(io), buffer+offset, length);
1228 SvCUR_set(bufsv, length+offset);
1229 *SvEND(bufsv) = '\0';
1230 (void)SvPOK_only(bufsv);
1232 /* This should not be marked tainted if the fp is marked clean */
1233 if (!(IoFLAGS(io) & IOf_UNTAINT))
1234 SvTAINTED_on(bufsv);
1246 return pp_send(ARGS);
1251 dSP; dMARK; dORIGMARK; dTARGET;
1264 buffer = SvPV(bufsv, blen);
1265 length = SvIVx(*++MARK);
1267 DIE("Negative length");
1270 if (!io || !IoIFP(io)) {
1273 if (op->op_type == OP_SYSWRITE)
1274 warn("Syswrite on closed filehandle");
1276 warn("Send on closed socket");
1279 else if (op->op_type == OP_SYSWRITE) {
1281 offset = SvIVx(*++MARK);
1284 DIE("Offset outside string");
1286 } else if (offset >= blen)
1287 DIE("Offset outside string");
1290 if (length > blen - offset)
1291 length = blen - offset;
1292 length = write(PerlIO_fileno(IoIFP(io)), buffer+offset, length);
1295 else if (SP > MARK) {
1298 sockbuf = SvPVx(*++MARK, mlen);
1299 length = sendto(PerlIO_fileno(IoIFP(io)), buffer, blen, length,
1300 (struct sockaddr *)sockbuf, mlen);
1303 length = send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1306 DIE(no_sock_func, "send");
1321 return pp_sysread(ARGS);
1332 gv = last_in_gv = (GV*)POPs;
1333 PUSHs(!gv || do_eof(gv) ? &sv_yes : &sv_no);
1345 gv = last_in_gv = (GV*)POPs;
1346 PUSHi( do_tell(gv) );
1357 gv = last_in_gv = (GV*)POPs;
1358 PUSHs( do_seek(gv, offset, whence) ? &sv_yes : &sv_no );
1365 Off_t len = (Off_t)POPn;
1370 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
1371 if (op->op_flags & OPf_SPECIAL) {
1372 tmpgv = gv_fetchpv(POPp, FALSE, SVt_PVIO);
1374 TAINT_PROPER("truncate");
1375 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1377 ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1379 my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1387 if (SvTYPE(sv) == SVt_PVGV) {
1388 tmpgv = (GV*)sv; /* *main::FRED for example */
1391 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1392 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
1396 name = SvPV(sv, na);
1397 TAINT_PROPER("truncate");
1399 if (truncate(name, len) < 0)
1404 if ((tmpfd = open(name, O_RDWR)) < 0)
1407 if (my_chsize(tmpfd, len) < 0)
1418 SETERRNO(EBADF,RMS$_IFI);
1421 DIE("truncate not implemented");
1427 return pp_ioctl(ARGS);
1434 unsigned int func = U_I(POPn);
1435 int optype = op->op_type;
1441 if (!io || !argsv || !IoIFP(io)) {
1442 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
1446 if (SvPOK(argsv) || !SvNIOK(argsv)) {
1448 s = SvPV_force(argsv, len);
1449 retval = IOCPARM_LEN(func);
1451 s = Sv_Grow(argsv, retval+1);
1452 SvCUR_set(argsv, retval);
1455 s[SvCUR(argsv)] = 17; /* a little sanity check here */
1458 retval = SvIV(argsv);
1460 s = (char*)(long)retval; /* ouch */
1462 s = (char*)retval; /* ouch */
1466 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1468 if (optype == OP_IOCTL)
1470 retval = ioctl(PerlIO_fileno(IoIFP(io)), func, s);
1472 DIE("ioctl is not implemented");
1476 #if defined(OS2) && defined(__EMX__)
1477 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
1479 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
1482 DIE("fcntl is not implemented");
1486 if (s[SvCUR(argsv)] != 17)
1487 DIE("Possible memory corruption: %s overflowed 3rd argument",
1489 s[SvCUR(argsv)] = 0; /* put our null back */
1490 SvSETMAGIC(argsv); /* Assume it has changed */
1499 PUSHp("0 but true", 10);
1519 fp = IoIFP(GvIOp(gv));
1523 value = (I32)(FLOCK(PerlIO_fileno(fp), argtype) >= 0);
1530 DIE(no_func, "flock()");
1542 int protocol = POPi;
1550 SETERRNO(EBADF,LIB$_INVARG);
1556 do_close(gv, FALSE);
1558 TAINT_PROPER("socket");
1559 fd = socket(domain, type, protocol);
1562 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
1563 IoOFP(io) = PerlIO_fdopen(fd, "w");
1565 if (!IoIFP(io) || !IoOFP(io)) {
1566 if (IoIFP(io)) PerlIO_close(IoIFP(io));
1567 if (IoOFP(io)) PerlIO_close(IoOFP(io));
1568 if (!IoIFP(io) && !IoOFP(io)) close(fd);
1574 DIE(no_sock_func, "socket");
1581 #ifdef HAS_SOCKETPAIR
1586 int protocol = POPi;
1599 do_close(gv1, FALSE);
1601 do_close(gv2, FALSE);
1603 TAINT_PROPER("socketpair");
1604 if (socketpair(domain, type, protocol, fd) < 0)
1606 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
1607 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
1609 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
1610 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
1612 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
1613 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
1614 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
1615 if (!IoIFP(io1) && !IoOFP(io1)) close(fd[0]);
1616 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
1617 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
1618 if (!IoIFP(io2) && !IoOFP(io2)) close(fd[1]);
1624 DIE(no_sock_func, "socketpair");
1635 register IO *io = GvIOn(gv);
1638 if (!io || !IoIFP(io))
1641 addr = SvPV(addrsv, len);
1642 TAINT_PROPER("bind");
1643 if (bind(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1650 warn("bind() on closed fd");
1651 SETERRNO(EBADF,SS$_IVCHAN);
1654 DIE(no_sock_func, "bind");
1665 register IO *io = GvIOn(gv);
1668 if (!io || !IoIFP(io))
1671 addr = SvPV(addrsv, len);
1672 TAINT_PROPER("connect");
1673 if (connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1680 warn("connect() on closed fd");
1681 SETERRNO(EBADF,SS$_IVCHAN);
1684 DIE(no_sock_func, "connect");
1694 register IO *io = GvIOn(gv);
1696 if (!io || !IoIFP(io))
1699 if (listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
1706 warn("listen() on closed fd");
1707 SETERRNO(EBADF,SS$_IVCHAN);
1710 DIE(no_sock_func, "listen");
1722 struct sockaddr saddr; /* use a struct to avoid alignment problems */
1723 Sock_size_t len = sizeof saddr;
1735 if (!gstio || !IoIFP(gstio))
1740 do_close(ngv, FALSE);
1742 fd = accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
1745 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
1746 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
1747 IoTYPE(nstio) = 's';
1748 if (!IoIFP(nstio) || !IoOFP(nstio)) {
1749 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
1750 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
1751 if (!IoIFP(nstio) && !IoOFP(nstio)) close(fd);
1755 PUSHp((char *)&saddr, len);
1760 warn("accept() on closed fd");
1761 SETERRNO(EBADF,SS$_IVCHAN);
1767 DIE(no_sock_func, "accept");
1777 register IO *io = GvIOn(gv);
1779 if (!io || !IoIFP(io))
1782 PUSHi( shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
1787 warn("shutdown() on closed fd");
1788 SETERRNO(EBADF,SS$_IVCHAN);
1791 DIE(no_sock_func, "shutdown");
1798 return pp_ssockopt(ARGS);
1800 DIE(no_sock_func, "getsockopt");
1808 int optype = op->op_type;
1811 unsigned int optname;
1817 if (optype == OP_GSOCKOPT)
1818 sv = sv_2mortal(NEWSV(22, 257));
1821 optname = (unsigned int) POPi;
1822 lvl = (unsigned int) POPi;
1826 if (!io || !IoIFP(io))
1829 fd = PerlIO_fileno(IoIFP(io));
1833 (void)SvPOK_only(sv);
1837 if (getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
1850 else if (SvOK(sv)) {
1851 aint = (int)SvIV(sv);
1855 if (setsockopt(fd, lvl, optname, buf, len) < 0)
1865 warn("[gs]etsockopt() on closed fd");
1866 SETERRNO(EBADF,SS$_IVCHAN);
1871 DIE(no_sock_func, "setsockopt");
1878 return pp_getpeername(ARGS);
1880 DIE(no_sock_func, "getsockname");
1888 int optype = op->op_type;
1892 register IO *io = GvIOn(gv);
1895 if (!io || !IoIFP(io))
1898 sv = sv_2mortal(NEWSV(22, 257));
1899 (void)SvPOK_only(sv);
1903 fd = PerlIO_fileno(IoIFP(io));
1905 case OP_GETSOCKNAME:
1906 if (getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
1909 case OP_GETPEERNAME:
1910 if (getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
1914 #ifdef BOGUS_GETNAME_RETURN
1915 /* Interactive Unix, getpeername() and getsockname()
1916 does not return valid namelen */
1917 if (len == BOGUS_GETNAME_RETURN)
1918 len = sizeof(struct sockaddr);
1927 warn("get{sock, peer}name() on closed fd");
1928 SETERRNO(EBADF,SS$_IVCHAN);
1933 DIE(no_sock_func, "getpeername");
1941 return pp_stat(ARGS);
1950 if (op->op_flags & OPf_REF) {
1951 tmpgv = cGVOP->op_gv;
1953 if (tmpgv != defgv) {
1954 laststype = OP_STAT;
1956 sv_setpv(statname, "");
1957 laststatval = (GvIO(tmpgv) && IoIFP(GvIOp(tmpgv))
1958 ? Fstat(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), &statcache) : -1);
1960 if (laststatval < 0)
1965 if (SvTYPE(sv) == SVt_PVGV) {
1969 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1970 tmpgv = (GV*)SvRV(sv);
1973 sv_setpv(statname, SvPV(sv,na));
1976 laststype = op->op_type;
1977 if (op->op_type == OP_LSTAT)
1978 laststatval = lstat(SvPV(statname, na), &statcache);
1981 laststatval = Stat(SvPV(statname, na), &statcache);
1982 if (laststatval < 0) {
1983 if (dowarn && strchr(SvPV(statname, na), '\n'))
1984 warn(warn_nl, "stat");
1989 if (GIMME != G_ARRAY) {
2000 PUSHs(sv_2mortal(newSViv((I32)statcache.st_dev)));
2001 PUSHs(sv_2mortal(newSViv((I32)statcache.st_ino)));
2002 PUSHs(sv_2mortal(newSViv((I32)statcache.st_mode)));
2003 PUSHs(sv_2mortal(newSViv((I32)statcache.st_nlink)));
2004 PUSHs(sv_2mortal(newSViv((I32)statcache.st_uid)));
2005 PUSHs(sv_2mortal(newSViv((I32)statcache.st_gid)));
2006 #ifdef USE_STAT_RDEV
2007 PUSHs(sv_2mortal(newSViv((I32)statcache.st_rdev)));
2009 PUSHs(sv_2mortal(newSVpv("", 0)));
2011 PUSHs(sv_2mortal(newSViv((I32)statcache.st_size)));
2013 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_atime)));
2014 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_mtime)));
2015 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_ctime)));
2017 PUSHs(sv_2mortal(newSViv((I32)statcache.st_atime)));
2018 PUSHs(sv_2mortal(newSViv((I32)statcache.st_mtime)));
2019 PUSHs(sv_2mortal(newSViv((I32)statcache.st_ctime)));
2021 #ifdef USE_STAT_BLOCKS
2022 PUSHs(sv_2mortal(newSViv((I32)statcache.st_blksize)));
2023 PUSHs(sv_2mortal(newSViv((I32)statcache.st_blocks)));
2025 PUSHs(sv_2mortal(newSVpv("", 0)));
2026 PUSHs(sv_2mortal(newSVpv("", 0)));
2034 I32 result = my_stat(ARGS);
2038 if (cando(S_IRUSR, 0, &statcache))
2045 I32 result = my_stat(ARGS);
2049 if (cando(S_IWUSR, 0, &statcache))
2056 I32 result = my_stat(ARGS);
2060 if (cando(S_IXUSR, 0, &statcache))
2067 I32 result = my_stat(ARGS);
2071 if (cando(S_IRUSR, 1, &statcache))
2078 I32 result = my_stat(ARGS);
2082 if (cando(S_IWUSR, 1, &statcache))
2089 I32 result = my_stat(ARGS);
2093 if (cando(S_IXUSR, 1, &statcache))
2100 I32 result = my_stat(ARGS);
2109 return pp_ftrowned(ARGS);
2114 I32 result = my_stat(ARGS);
2118 if (statcache.st_uid == (op->op_type == OP_FTEOWNED ? euid : uid) )
2125 I32 result = my_stat(ARGS);
2129 if (!statcache.st_size)
2136 I32 result = my_stat(ARGS);
2140 PUSHi(statcache.st_size);
2146 I32 result = my_stat(ARGS);
2150 PUSHn( ((I32)basetime - (I32)statcache.st_mtime) / 86400.0 );
2156 I32 result = my_stat(ARGS);
2160 PUSHn( ((I32)basetime - (I32)statcache.st_atime) / 86400.0 );
2166 I32 result = my_stat(ARGS);
2170 PUSHn( ((I32)basetime - (I32)statcache.st_ctime) / 86400.0 );
2176 I32 result = my_stat(ARGS);
2180 if (S_ISSOCK(statcache.st_mode))
2187 I32 result = my_stat(ARGS);
2191 if (S_ISCHR(statcache.st_mode))
2198 I32 result = my_stat(ARGS);
2202 if (S_ISBLK(statcache.st_mode))
2209 I32 result = my_stat(ARGS);
2213 if (S_ISREG(statcache.st_mode))
2220 I32 result = my_stat(ARGS);
2224 if (S_ISDIR(statcache.st_mode))
2231 I32 result = my_stat(ARGS);
2235 if (S_ISFIFO(statcache.st_mode))
2242 I32 result = my_lstat(ARGS);
2246 if (S_ISLNK(statcache.st_mode))
2255 I32 result = my_stat(ARGS);
2259 if (statcache.st_mode & S_ISUID)
2269 I32 result = my_stat(ARGS);
2273 if (statcache.st_mode & S_ISGID)
2283 I32 result = my_stat(ARGS);
2287 if (statcache.st_mode & S_ISVTX)
2299 if (op->op_flags & OPf_REF) {
2304 gv = gv_fetchpv(tmps = POPp, FALSE, SVt_PVIO);
2305 if (GvIO(gv) && IoIFP(GvIOp(gv)))
2306 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
2307 else if (isDIGIT(*tmps))
2316 #if defined(atarist) /* this will work with atariST. Configure will
2317 make guesses for other systems. */
2318 # define FILE_base(f) ((f)->_base)
2319 # define FILE_ptr(f) ((f)->_ptr)
2320 # define FILE_cnt(f) ((f)->_cnt)
2321 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
2331 register STDCHAR *s;
2336 if (op->op_flags & OPf_REF)
2338 else if (isGV(TOPs))
2340 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2341 gv = (GV*)SvRV(POPs);
2352 goto really_filename;
2358 sv_setpv(statname, "");
2361 if (io && IoIFP(io)) {
2362 if (! PerlIO_has_base(IoIFP(io)))
2363 DIE("-T and -B not implemented on filehandles");
2364 laststatval = Fstat(PerlIO_fileno(IoIFP(io)), &statcache);
2365 if (laststatval < 0)
2367 if (S_ISDIR(statcache.st_mode)) /* handle NFS glitch */
2368 if (op->op_type == OP_FTTEXT)
2372 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
2373 i = PerlIO_getc(IoIFP(io));
2375 (void)PerlIO_ungetc(IoIFP(io),i);
2377 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
2379 len = PerlIO_get_bufsiz(IoIFP(io));
2380 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
2381 /* sfio can have large buffers - limit to 512 */
2387 warn("Test on unopened file <%s>",
2388 GvENAME(cGVOP->op_gv));
2389 SETERRNO(EBADF,RMS$_IFI);
2398 sv_setpv(statname, SvPV(sv, na));
2400 i = open(SvPV(sv, na), O_RDONLY, 0);
2402 i = open(SvPV(sv, na), 0);
2405 if (dowarn && strchr(SvPV(sv, na), '\n'))
2406 warn(warn_nl, "open");
2409 laststatval = Fstat(i, &statcache);
2410 if (laststatval < 0)
2412 len = read(i, tbuf, 512);
2415 if (S_ISDIR(statcache.st_mode) && op->op_type == OP_FTTEXT)
2416 RETPUSHNO; /* special case NFS directories */
2417 RETPUSHYES; /* null file is anything */
2422 /* now scan s to look for textiness */
2423 /* XXX ASCII dependent code */
2425 for (i = 0; i < len; i++, s++) {
2426 if (!*s) { /* null never allowed in text */
2433 *s != '\n' && *s != '\r' && *s != '\b' &&
2434 *s != '\t' && *s != '\f' && *s != 27)
2438 if ((odd * 3 > len) == (op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
2446 return pp_fttext(ARGS);
2461 if (!tmps || !*tmps) {
2462 svp = hv_fetch(GvHVn(envgv), "HOME", 4, FALSE);
2464 tmps = SvPV(*svp, na);
2466 if (!tmps || !*tmps) {
2467 svp = hv_fetch(GvHVn(envgv), "LOGDIR", 6, FALSE);
2469 tmps = SvPV(*svp, na);
2471 TAINT_PROPER("chdir");
2472 PUSHi( chdir(tmps) >= 0 );
2474 /* Clear the DEFAULT element of ENV so we'll get the new value
2476 hv_delete(GvHVn(envgv),"DEFAULT",7,G_DISCARD);
2483 dSP; dMARK; dTARGET;
2486 value = (I32)apply(op->op_type, MARK, SP);
2491 DIE(no_func, "Unsupported function chown");
2501 TAINT_PROPER("chroot");
2502 PUSHi( chroot(tmps) >= 0 );
2505 DIE(no_func, "chroot");
2511 dSP; dMARK; dTARGET;
2513 value = (I32)apply(op->op_type, MARK, SP);
2521 dSP; dMARK; dTARGET;
2523 value = (I32)apply(op->op_type, MARK, SP);
2531 dSP; dMARK; dTARGET;
2533 value = (I32)apply(op->op_type, MARK, SP);
2545 char *tmps = SvPV(TOPs, na);
2546 TAINT_PROPER("rename");
2548 anum = rename(tmps, tmps2);
2550 if (!(anum = Stat(tmps, &statbuf))) {
2551 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
2554 if (euid || Stat(tmps2, &statbuf) < 0 || !S_ISDIR(statbuf.st_mode))
2555 (void)UNLINK(tmps2);
2556 if (!(anum = link(tmps, tmps2)))
2557 anum = UNLINK(tmps);
2570 char *tmps = SvPV(TOPs, na);
2571 TAINT_PROPER("link");
2572 SETi( link(tmps, tmps2) >= 0 );
2574 DIE(no_func, "Unsupported function link");
2584 char *tmps = SvPV(TOPs, na);
2585 TAINT_PROPER("symlink");
2586 SETi( symlink(tmps, tmps2) >= 0 );
2589 DIE(no_func, "symlink");
2600 len = readlink(tmps, buf, sizeof buf);
2608 RETSETUNDEF; /* just pretend it's a normal file */
2612 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
2614 dooneliner(cmd, filename)
2618 char *save_filename = filename;
2624 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
2625 strcpy(cmdline, cmd);
2626 strcat(cmdline, " ");
2627 for (s = cmdline + strlen(cmdline); *filename; ) {
2632 myfp = my_popen(cmdline, "r");
2636 SV *tmpsv = sv_newmortal();
2637 /* Need to save/restore 'rs' ?? */
2638 s = sv_gets(tmpsv, myfp, 0);
2639 (void)my_pclose(myfp);
2643 #ifdef HAS_SYS_ERRLIST
2648 /* you don't see this */
2650 #ifdef HAS_SYS_ERRLIST
2658 if (instr(s, errmsg)) {
2665 #define EACCES EPERM
2667 if (instr(s, "cannot make"))
2668 SETERRNO(EEXIST,RMS$_FEX);
2669 else if (instr(s, "existing file"))
2670 SETERRNO(EEXIST,RMS$_FEX);
2671 else if (instr(s, "ile exists"))
2672 SETERRNO(EEXIST,RMS$_FEX);
2673 else if (instr(s, "non-exist"))
2674 SETERRNO(ENOENT,RMS$_FNF);
2675 else if (instr(s, "does not exist"))
2676 SETERRNO(ENOENT,RMS$_FNF);
2677 else if (instr(s, "not empty"))
2678 SETERRNO(EBUSY,SS$_DEVOFFLINE);
2679 else if (instr(s, "cannot access"))
2680 SETERRNO(EACCES,RMS$_PRV);
2682 SETERRNO(EPERM,RMS$_PRV);
2685 else { /* some mkdirs return no failure indication */
2686 anum = (Stat(save_filename, &statbuf) >= 0);
2687 if (op->op_type == OP_RMDIR)
2692 SETERRNO(EACCES,RMS$_PRV); /* a guess */
2708 char *tmps = SvPV(TOPs, na);
2710 TAINT_PROPER("mkdir");
2712 SETi( mkdir(tmps, mode) >= 0 );
2714 SETi( dooneliner("mkdir", tmps) );
2715 oldumask = umask(0);
2717 chmod(tmps, (mode & ~oldumask) & 0777);
2728 TAINT_PROPER("rmdir");
2730 XPUSHi( rmdir(tmps) >= 0 );
2732 XPUSHi( dooneliner("rmdir", tmps) );
2737 /* Directory calls. */
2742 #if defined(Direntry_t) && defined(HAS_READDIR)
2743 char *dirname = POPp;
2745 register IO *io = GvIOn(gv);
2751 closedir(IoDIRP(io));
2752 if (!(IoDIRP(io) = opendir(dirname)))
2758 SETERRNO(EBADF,RMS$_DIR);
2761 DIE(no_dir_func, "opendir");
2768 #if defined(Direntry_t) && defined(HAS_READDIR)
2770 Direntry_t *readdir _((DIR *));
2772 register Direntry_t *dp;
2774 register IO *io = GvIOn(gv);
2776 if (!io || !IoDIRP(io))
2779 if (GIMME == G_ARRAY) {
2781 while (dp = (Direntry_t *)readdir(IoDIRP(io))) {
2783 XPUSHs(sv_2mortal(newSVpv(dp->d_name, dp->d_namlen)));
2785 XPUSHs(sv_2mortal(newSVpv(dp->d_name, 0)));
2790 if (!(dp = (Direntry_t *)readdir(IoDIRP(io))))
2793 XPUSHs(sv_2mortal(newSVpv(dp->d_name, dp->d_namlen)));
2795 XPUSHs(sv_2mortal(newSVpv(dp->d_name, 0)));
2802 SETERRNO(EBADF,RMS$_ISI);
2803 if (GIMME == G_ARRAY)
2808 DIE(no_dir_func, "readdir");
2815 #if defined(HAS_TELLDIR) || defined(telldir)
2816 #if !defined(telldir) && !defined(HAS_TELLDIR_PROTOTYPE)
2817 long telldir _((DIR *));
2820 register IO *io = GvIOn(gv);
2822 if (!io || !IoDIRP(io))
2825 PUSHi( telldir(IoDIRP(io)) );
2829 SETERRNO(EBADF,RMS$_ISI);
2832 DIE(no_dir_func, "telldir");
2839 #if defined(HAS_SEEKDIR) || defined(seekdir)
2842 register IO *io = GvIOn(gv);
2844 if (!io || !IoDIRP(io))
2847 (void)seekdir(IoDIRP(io), along);
2852 SETERRNO(EBADF,RMS$_ISI);
2855 DIE(no_dir_func, "seekdir");
2862 #if defined(HAS_REWINDDIR) || defined(rewinddir)
2864 register IO *io = GvIOn(gv);
2866 if (!io || !IoDIRP(io))
2869 (void)rewinddir(IoDIRP(io));
2873 SETERRNO(EBADF,RMS$_ISI);
2876 DIE(no_dir_func, "rewinddir");
2883 #if defined(Direntry_t) && defined(HAS_READDIR)
2885 register IO *io = GvIOn(gv);
2887 if (!io || !IoDIRP(io))
2890 #ifdef VOID_CLOSEDIR
2891 closedir(IoDIRP(io));
2893 if (closedir(IoDIRP(io)) < 0) {
2894 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
2903 SETERRNO(EBADF,RMS$_IFI);
2906 DIE(no_dir_func, "closedir");
2910 /* Process control. */
2925 if (tmpgv = gv_fetchpv("$", TRUE, SVt_PV))
2926 sv_setiv(GvSV(tmpgv), (IV)getpid());
2927 hv_clear(pidstatus); /* no kids, so don't wait for 'em */
2932 DIE(no_func, "Unsupported function fork");
2938 #if !defined(DOSISH) || defined(OS2)
2943 childpid = wait4pid(-1, &argflags, 0);
2944 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
2948 DIE(no_func, "Unsupported function wait");
2954 #if !defined(DOSISH) || defined(OS2)
2962 childpid = wait4pid(childpid, &argflags, optype);
2963 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
2967 DIE(no_func, "Unsupported function wait");
2973 dSP; dMARK; dORIGMARK; dTARGET;
2978 Sigsave_t ihand,qhand; /* place to save signals during system() */
2980 if (SP - MARK == 1) {
2982 char *junk = SvPV(TOPs, na);
2984 TAINT_PROPER("system");
2987 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2)
2988 while ((childpid = vfork()) == -1) {
2989 if (errno != EAGAIN) {
2998 rsignal_save(SIGINT, SIG_IGN, &ihand);
2999 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
3001 result = wait4pid(childpid, &status, 0);
3002 } while (result == -1 && errno == EINTR);
3003 (void)rsignal_restore(SIGINT, &ihand);
3004 (void)rsignal_restore(SIGQUIT, &qhand);
3005 STATUS_NATIVE_SET(result == -1 ? -1 : status);
3006 do_execfree(); /* free any memory child malloced on vfork */
3008 PUSHi(STATUS_CURRENT);
3011 if (op->op_flags & OPf_STACKED) {
3012 SV *really = *++MARK;
3013 value = (I32)do_aexec(really, MARK, SP);
3015 else if (SP - MARK != 1)
3016 value = (I32)do_aexec(Nullsv, MARK, SP);
3018 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), na));
3021 #else /* ! FORK or VMS or OS/2 */
3022 if (op->op_flags & OPf_STACKED) {
3023 SV *really = *++MARK;
3024 value = (I32)do_aspawn(really, MARK, SP);
3026 else if (SP - MARK != 1)
3027 value = (I32)do_aspawn(Nullsv, MARK, SP);
3029 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), na));
3031 STATUS_NATIVE_SET(value);
3034 PUSHi(STATUS_CURRENT);
3035 #endif /* !FORK or VMS */
3041 dSP; dMARK; dORIGMARK; dTARGET;
3044 if (op->op_flags & OPf_STACKED) {
3045 SV *really = *++MARK;
3046 value = (I32)do_aexec(really, MARK, SP);
3048 else if (SP - MARK != 1)
3050 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
3052 value = (I32)do_aexec(Nullsv, MARK, SP);
3056 char *junk = SvPV(*SP, na);
3058 TAINT_PROPER("exec");
3061 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), na));
3063 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), na));
3073 dSP; dMARK; dTARGET;
3076 value = (I32)apply(op->op_type, MARK, SP);
3081 DIE(no_func, "Unsupported function kill");
3089 XPUSHi( getppid() );
3092 DIE(no_func, "getppid");
3108 value = (I32)BSD_GETPGRP(pid);
3110 if (pid != 0 && pid != getpid())
3111 DIE("POSIX getpgrp can't take an argument");
3112 value = (I32)getpgrp();
3117 DIE(no_func, "getpgrp()");
3136 TAINT_PROPER("setpgrp");
3138 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
3140 if ((pgrp != 0 && pgrp != getpid())) || (pid != 0 && pid != getpid()))
3141 DIE("POSIX setpgrp can't take an argument");
3142 SETi( setpgrp() >= 0 );
3143 #endif /* USE_BSDPGRP */
3146 DIE(no_func, "setpgrp()");
3155 #ifdef HAS_GETPRIORITY
3158 SETi( getpriority(which, who) );
3161 DIE(no_func, "getpriority()");
3171 #ifdef HAS_SETPRIORITY
3175 TAINT_PROPER("setpriority");
3176 SETi( setpriority(which, who, niceval) >= 0 );
3179 DIE(no_func, "setpriority()");
3189 XPUSHn( time(Null(Time_t*)) );
3191 XPUSHi( time(Null(Time_t*)) );
3196 /* XXX The POSIX name is CLK_TCK; it is to be preferred
3197 to HZ. Probably. For now, assume that if the system
3198 defines HZ, it does so correctly. (Will this break
3200 Probably we ought to use _sysconf(_SC_CLK_TCK), if
3201 it's supported. --AD 9/96.
3217 DIE("times not implemented");
3222 (void)times(×buf);
3224 (void)times((tbuffer_t *)×buf); /* time.h uses different name for */
3225 /* struct tms, though same data */
3229 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_utime)/HZ)));
3230 if (GIMME == G_ARRAY) {
3231 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_stime)/HZ)));
3232 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_cutime)/HZ)));
3233 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_cstime)/HZ)));
3236 #endif /* HAS_TIMES */
3241 return pp_gmtime(ARGS);
3249 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
3250 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
3251 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
3257 when = (Time_t)SvNVx(POPs);
3259 when = (Time_t)SvIVx(POPs);
3262 if (op->op_type == OP_LOCALTIME)
3263 tmbuf = localtime(&when);
3265 tmbuf = gmtime(&when);
3269 if (GIMME != G_ARRAY) {
3274 sprintf(mybuf, "%s %s %2d %02d:%02d:%02d %d",
3275 dayname[tmbuf->tm_wday],
3276 monname[tmbuf->tm_mon],
3281 tmbuf->tm_year + 1900);
3282 PUSHp(mybuf, strlen(mybuf));
3285 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_sec)));
3286 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_min)));
3287 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_hour)));
3288 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mday)));
3289 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mon)));
3290 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_year)));
3291 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_wday)));
3292 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_yday)));
3293 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_isdst)));
3304 anum = alarm((unsigned int)anum);
3311 DIE(no_func, "Unsupported function alarm");
3322 (void)time(&lasttime);
3327 sleep((unsigned int)duration);
3330 XPUSHi(when - lasttime);
3334 /* Shared memory. */
3338 return pp_semget(ARGS);
3343 return pp_semctl(ARGS);
3348 return pp_shmwrite(ARGS);
3353 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3354 dSP; dMARK; dTARGET;
3355 I32 value = (I32)(do_shmio(op->op_type, MARK, SP) >= 0);
3360 return pp_semget(ARGS);
3364 /* Message passing. */
3368 return pp_semget(ARGS);
3373 return pp_semctl(ARGS);
3378 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3379 dSP; dMARK; dTARGET;
3380 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
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_msgrcv(MARK, SP) >= 0);
3398 return pp_semget(ARGS);
3406 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3407 dSP; dMARK; dTARGET;
3408 int anum = do_ipcget(op->op_type, MARK, SP);
3415 DIE("System V IPC is not implemented on this machine");
3421 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3422 dSP; dMARK; dTARGET;
3423 int anum = do_ipcctl(op->op_type, MARK, SP);
3431 PUSHp("0 but true",10);
3435 return pp_semget(ARGS);
3441 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3442 dSP; dMARK; dTARGET;
3443 I32 value = (I32)(do_semop(MARK, SP) >= 0);
3448 return pp_semget(ARGS);
3452 /* Get system info. */
3457 return pp_ghostent(ARGS);
3459 DIE(no_sock_func, "gethostbyname");
3466 return pp_ghostent(ARGS);
3468 DIE(no_sock_func, "gethostbyaddr");
3476 I32 which = op->op_type;
3477 register char **elem;
3479 struct hostent *gethostbyname();
3480 struct hostent *gethostbyaddr();
3481 #ifdef HAS_GETHOSTENT
3482 struct hostent *gethostent();
3484 struct hostent *hent;
3488 if (which == OP_GHBYNAME) {
3489 hent = gethostbyname(POPp);
3491 else if (which == OP_GHBYADDR) {
3492 int addrtype = POPi;
3495 char *addr = SvPV(addrsv, addrlen);
3497 hent = gethostbyaddr(addr, addrlen, addrtype);
3500 #ifdef HAS_GETHOSTENT
3501 hent = gethostent();
3503 DIE("gethostent not implemented");
3506 #ifdef HOST_NOT_FOUND
3508 STATUS_NATIVE_SET(h_errno);
3511 if (GIMME != G_ARRAY) {
3512 PUSHs(sv = sv_newmortal());
3514 if (which == OP_GHBYNAME) {
3516 sv_setpvn(sv, hent->h_addr, hent->h_length);
3519 sv_setpv(sv, (char*)hent->h_name);
3525 PUSHs(sv = sv_mortalcopy(&sv_no));
3526 sv_setpv(sv, (char*)hent->h_name);
3527 PUSHs(sv = sv_mortalcopy(&sv_no));
3528 for (elem = hent->h_aliases; elem && *elem; elem++) {
3529 sv_catpv(sv, *elem);
3531 sv_catpvn(sv, " ", 1);
3533 PUSHs(sv = sv_mortalcopy(&sv_no));
3534 sv_setiv(sv, (IV)hent->h_addrtype);
3535 PUSHs(sv = sv_mortalcopy(&sv_no));
3536 len = hent->h_length;
3537 sv_setiv(sv, (IV)len);
3539 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3540 XPUSHs(sv = sv_mortalcopy(&sv_no));
3541 sv_setpvn(sv, *elem, len);
3544 PUSHs(sv = sv_mortalcopy(&sv_no));
3546 sv_setpvn(sv, hent->h_addr, len);
3551 DIE(no_sock_func, "gethostent");
3558 return pp_gnetent(ARGS);
3560 DIE(no_sock_func, "getnetbyname");
3567 return pp_gnetent(ARGS);
3569 DIE(no_sock_func, "getnetbyaddr");
3577 I32 which = op->op_type;
3578 register char **elem;
3580 struct netent *getnetbyname();
3581 struct netent *getnetbyaddr();
3582 struct netent *getnetent();
3583 struct netent *nent;
3585 if (which == OP_GNBYNAME)
3586 nent = getnetbyname(POPp);
3587 else if (which == OP_GNBYADDR) {
3588 int addrtype = POPi;
3589 unsigned long addr = U_L(POPn);
3590 nent = getnetbyaddr((long)addr, addrtype);
3596 if (GIMME != G_ARRAY) {
3597 PUSHs(sv = sv_newmortal());
3599 if (which == OP_GNBYNAME)
3600 sv_setiv(sv, (IV)nent->n_net);
3602 sv_setpv(sv, nent->n_name);
3608 PUSHs(sv = sv_mortalcopy(&sv_no));
3609 sv_setpv(sv, nent->n_name);
3610 PUSHs(sv = sv_mortalcopy(&sv_no));
3611 for (elem = nent->n_aliases; *elem; elem++) {
3612 sv_catpv(sv, *elem);
3614 sv_catpvn(sv, " ", 1);
3616 PUSHs(sv = sv_mortalcopy(&sv_no));
3617 sv_setiv(sv, (IV)nent->n_addrtype);
3618 PUSHs(sv = sv_mortalcopy(&sv_no));
3619 sv_setiv(sv, (IV)nent->n_net);
3624 DIE(no_sock_func, "getnetent");
3631 return pp_gprotoent(ARGS);
3633 DIE(no_sock_func, "getprotobyname");
3640 return pp_gprotoent(ARGS);
3642 DIE(no_sock_func, "getprotobynumber");
3650 I32 which = op->op_type;
3651 register char **elem;
3653 struct protoent *getprotobyname();
3654 struct protoent *getprotobynumber();
3655 struct protoent *getprotoent();
3656 struct protoent *pent;
3658 if (which == OP_GPBYNAME)
3659 pent = getprotobyname(POPp);
3660 else if (which == OP_GPBYNUMBER)
3661 pent = getprotobynumber(POPi);
3663 pent = getprotoent();
3666 if (GIMME != G_ARRAY) {
3667 PUSHs(sv = sv_newmortal());
3669 if (which == OP_GPBYNAME)
3670 sv_setiv(sv, (IV)pent->p_proto);
3672 sv_setpv(sv, pent->p_name);
3678 PUSHs(sv = sv_mortalcopy(&sv_no));
3679 sv_setpv(sv, pent->p_name);
3680 PUSHs(sv = sv_mortalcopy(&sv_no));
3681 for (elem = pent->p_aliases; *elem; elem++) {
3682 sv_catpv(sv, *elem);
3684 sv_catpvn(sv, " ", 1);
3686 PUSHs(sv = sv_mortalcopy(&sv_no));
3687 sv_setiv(sv, (IV)pent->p_proto);
3692 DIE(no_sock_func, "getprotoent");
3699 return pp_gservent(ARGS);
3701 DIE(no_sock_func, "getservbyname");
3708 return pp_gservent(ARGS);
3710 DIE(no_sock_func, "getservbyport");
3718 I32 which = op->op_type;
3719 register char **elem;
3721 struct servent *getservbyname();
3722 struct servent *getservbynumber();
3723 struct servent *getservent();
3724 struct servent *sent;
3726 if (which == OP_GSBYNAME) {
3730 if (proto && !*proto)
3733 sent = getservbyname(name, proto);
3735 else if (which == OP_GSBYPORT) {
3737 unsigned short port = POPu;
3742 sent = getservbyport(port, proto);
3745 sent = getservent();
3748 if (GIMME != G_ARRAY) {
3749 PUSHs(sv = sv_newmortal());
3751 if (which == OP_GSBYNAME) {
3753 sv_setiv(sv, (IV)ntohs(sent->s_port));
3755 sv_setiv(sv, (IV)(sent->s_port));
3759 sv_setpv(sv, sent->s_name);
3765 PUSHs(sv = sv_mortalcopy(&sv_no));
3766 sv_setpv(sv, sent->s_name);
3767 PUSHs(sv = sv_mortalcopy(&sv_no));
3768 for (elem = sent->s_aliases; *elem; elem++) {
3769 sv_catpv(sv, *elem);
3771 sv_catpvn(sv, " ", 1);
3773 PUSHs(sv = sv_mortalcopy(&sv_no));
3775 sv_setiv(sv, (IV)ntohs(sent->s_port));
3777 sv_setiv(sv, (IV)(sent->s_port));
3779 PUSHs(sv = sv_mortalcopy(&sv_no));
3780 sv_setpv(sv, sent->s_proto);
3785 DIE(no_sock_func, "getservent");
3796 DIE(no_sock_func, "sethostent");
3807 DIE(no_sock_func, "setnetent");
3818 DIE(no_sock_func, "setprotoent");
3829 DIE(no_sock_func, "setservent");
3841 DIE(no_sock_func, "endhostent");
3853 DIE(no_sock_func, "endnetent");
3865 DIE(no_sock_func, "endprotoent");
3877 DIE(no_sock_func, "endservent");
3884 return pp_gpwent(ARGS);
3886 DIE(no_func, "getpwnam");
3893 return pp_gpwent(ARGS);
3895 DIE(no_func, "getpwuid");
3903 I32 which = op->op_type;
3905 struct passwd *pwent;
3907 if (which == OP_GPWNAM)
3908 pwent = getpwnam(POPp);
3909 else if (which == OP_GPWUID)
3910 pwent = getpwuid(POPi);
3912 pwent = (struct passwd *)getpwent();
3915 if (GIMME != G_ARRAY) {
3916 PUSHs(sv = sv_newmortal());
3918 if (which == OP_GPWNAM)
3919 sv_setiv(sv, (IV)pwent->pw_uid);
3921 sv_setpv(sv, pwent->pw_name);
3927 PUSHs(sv = sv_mortalcopy(&sv_no));
3928 sv_setpv(sv, pwent->pw_name);
3929 PUSHs(sv = sv_mortalcopy(&sv_no));
3930 sv_setpv(sv, pwent->pw_passwd);
3931 PUSHs(sv = sv_mortalcopy(&sv_no));
3932 sv_setiv(sv, (IV)pwent->pw_uid);
3933 PUSHs(sv = sv_mortalcopy(&sv_no));
3934 sv_setiv(sv, (IV)pwent->pw_gid);
3935 PUSHs(sv = sv_mortalcopy(&sv_no));
3937 sv_setiv(sv, (IV)pwent->pw_change);
3940 sv_setiv(sv, (IV)pwent->pw_quota);
3943 sv_setpv(sv, pwent->pw_age);
3947 PUSHs(sv = sv_mortalcopy(&sv_no));
3949 sv_setpv(sv, pwent->pw_class);
3952 sv_setpv(sv, pwent->pw_comment);
3955 PUSHs(sv = sv_mortalcopy(&sv_no));
3956 sv_setpv(sv, pwent->pw_gecos);
3957 PUSHs(sv = sv_mortalcopy(&sv_no));
3958 sv_setpv(sv, pwent->pw_dir);
3959 PUSHs(sv = sv_mortalcopy(&sv_no));
3960 sv_setpv(sv, pwent->pw_shell);
3962 PUSHs(sv = sv_mortalcopy(&sv_no));
3963 sv_setiv(sv, (IV)pwent->pw_expire);
3968 DIE(no_func, "getpwent");
3979 DIE(no_func, "setpwent");
3990 DIE(no_func, "endpwent");
3997 return pp_ggrent(ARGS);
3999 DIE(no_func, "getgrnam");
4006 return pp_ggrent(ARGS);
4008 DIE(no_func, "getgrgid");
4016 I32 which = op->op_type;
4017 register char **elem;
4019 struct group *grent;
4021 if (which == OP_GGRNAM)
4022 grent = (struct group *)getgrnam(POPp);
4023 else if (which == OP_GGRGID)
4024 grent = (struct group *)getgrgid(POPi);
4026 grent = (struct group *)getgrent();
4029 if (GIMME != G_ARRAY) {
4030 PUSHs(sv = sv_newmortal());
4032 if (which == OP_GGRNAM)
4033 sv_setiv(sv, (IV)grent->gr_gid);
4035 sv_setpv(sv, grent->gr_name);
4041 PUSHs(sv = sv_mortalcopy(&sv_no));
4042 sv_setpv(sv, grent->gr_name);
4043 PUSHs(sv = sv_mortalcopy(&sv_no));
4044 sv_setpv(sv, grent->gr_passwd);
4045 PUSHs(sv = sv_mortalcopy(&sv_no));
4046 sv_setiv(sv, (IV)grent->gr_gid);
4047 PUSHs(sv = sv_mortalcopy(&sv_no));
4048 for (elem = grent->gr_mem; *elem; elem++) {
4049 sv_catpv(sv, *elem);
4051 sv_catpvn(sv, " ", 1);
4057 DIE(no_func, "getgrent");
4068 DIE(no_func, "setgrent");
4079 DIE(no_func, "endgrent");
4089 if (!(tmps = getlogin()))
4091 PUSHp(tmps, strlen(tmps));
4094 DIE(no_func, "getlogin");
4098 /* Miscellaneous. */
4103 dSP; dMARK; dORIGMARK; dTARGET;
4104 register I32 items = SP - MARK;
4105 unsigned long a[20];
4111 while (++MARK <= SP) {
4112 if (SvTAINTED(*MARK)) {
4118 TAINT_PROPER("syscall");
4121 /* This probably won't work on machines where sizeof(long) != sizeof(int)
4122 * or where sizeof(long) != sizeof(char*). But such machines will
4123 * not likely have syscall implemented either, so who cares?
4125 while (++MARK <= SP) {
4126 if (SvNIOK(*MARK) || !i)
4127 a[i++] = SvIV(*MARK);
4128 else if (*MARK == &sv_undef)
4131 a[i++] = (unsigned long)SvPV_force(*MARK, na);
4137 DIE("Too many args to syscall");
4139 DIE("Too few args to syscall");
4141 retval = syscall(a[0]);
4144 retval = syscall(a[0],a[1]);
4147 retval = syscall(a[0],a[1],a[2]);
4150 retval = syscall(a[0],a[1],a[2],a[3]);
4153 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
4156 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
4159 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
4162 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
4166 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
4169 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
4172 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4176 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4180 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4184 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4185 a[10],a[11],a[12],a[13]);
4187 #endif /* atarist */
4193 DIE(no_func, "syscall");
4197 #ifdef FCNTL_EMULATE_FLOCK
4199 /* XXX Emulate flock() with fcntl().
4200 What's really needed is a good file locking module.
4204 fcntl_emulate_flock(fd, operation)
4210 switch (operation & ~LOCK_NB) {
4212 flock.l_type = F_RDLCK;
4215 flock.l_type = F_WRLCK;
4218 flock.l_type = F_UNLCK;
4224 flock.l_whence = SEEK_SET;
4225 flock.l_start = flock.l_len = 0L;
4227 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
4230 #endif /* FCNTL_EMULATE_FLOCK */
4232 #ifdef LOCKF_EMULATE_FLOCK
4234 /* XXX Emulate flock() with lockf(). This is just to increase
4235 portability of scripts. The calls are not completely
4236 interchangeable. What's really needed is a good file
4240 /* The lockf() constants might have been defined in <unistd.h>.
4241 Unfortunately, <unistd.h> causes troubles on some mixed
4242 (BSD/POSIX) systems, such as SunOS 4.1.3.
4244 Further, the lockf() constants aren't POSIX, so they might not be
4245 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
4246 just stick in the SVID values and be done with it. Sigh.
4250 # define F_ULOCK 0 /* Unlock a previously locked region */
4253 # define F_LOCK 1 /* Lock a region for exclusive use */
4256 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
4259 # define F_TEST 3 /* Test a region for other processes locks */
4263 lockf_emulate_flock (fd, operation)
4268 switch (operation) {
4270 /* LOCK_SH - get a shared lock */
4272 /* LOCK_EX - get an exclusive lock */
4274 i = lockf (fd, F_LOCK, 0);
4277 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
4278 case LOCK_SH|LOCK_NB:
4279 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
4280 case LOCK_EX|LOCK_NB:
4281 i = lockf (fd, F_TLOCK, 0);
4283 if ((errno == EAGAIN) || (errno == EACCES))
4284 errno = EWOULDBLOCK;
4287 /* LOCK_UN - unlock (non-blocking is a no-op) */
4289 case LOCK_UN|LOCK_NB:
4290 i = lockf (fd, F_ULOCK, 0);
4293 /* Default - can't decipher operation */
4302 #endif /* LOCKF_EMULATE_FLOCK */