#ifdef HAS_SOCKET
int
do_spair(stab1, stab2, arglast)
STAB *stab1;
STAB *stab2;
int *arglast;
{
    register STR **st = stack->ary_array;
    register int sp = arglast[2];
    register STIO *stio1;
    register STIO *stio2;
    int domain, type, protocol, fd[2];

    if (!stab1 || !stab2)
	return FALSE;

    stio1 = stab_io(stab1);
    stio2 = stab_io(stab2);
    if (!stio1)
	stio1 = stab_io(stab1) = stio_new();
    else if (stio1->ifp)
	do_close(stab1,FALSE);
    if (!stio2)
	stio2 = stab_io(stab2) = stio_new();
    else if (stio2->ifp)
	do_close(stab2,FALSE);

    domain = (int)str_gnum(st[++sp]);
    type = (int)str_gnum(st[++sp]);
    protocol = (int)str_gnum(st[++sp]);
TAINT_PROPER("in socketpair");
#ifdef HAS_SOCKETPAIR
    if (socketpair(domain,type,protocol,fd) < 0)
	return FALSE;
#else
    fatal("Socketpair unimplemented");
#endif
    stio1->ifp = fdopen(fd[0], "r");
    stio1->ofp = fdopen(fd[0], "w");
    stio1->type = 's';
    stio2->ifp = fdopen(fd[1], "r");
    stio2->ofp = fdopen(fd[1], "w");
    stio2->type = 's';
    if (!stio1->ifp || !stio1->ofp || !stio2->ifp || !stio2->ofp) {
	if (stio1->ifp) fclose(stio1->ifp);
	if (stio1->ofp) fclose(stio1->ofp);
	if (!stio1->ifp && !stio1->ofp) close(fd[0]);
	if (stio2->ifp) fclose(stio2->ifp);
	if (stio2->ofp) fclose(stio2->ofp);
	if (!stio2->ifp && !stio2->ofp) close(fd[1]);
	return FALSE;
    }

    return TRUE;
}