void adcons(int s,int g){ /* add connections through a point */
/* but not to group g */
int n[4],i,sn,j,k,ldtmp,c,dst;
k = 0;
i = fdir[s];
for(ldtmp = ldir[i]; i != ldtmp; ++i){
sn = s + nbr[i];
if(board[sn] != NOGROUP && board[sn] != g)
n[k++] = board[sn];
}
for(i = 0; i < k-1; ++i)
for(j = i + 1; j != k; ++j)
if(grcolor[n[i]] == grcolor[n[j]])
addconn(n[i],n[j],s);
for(i = 0; i < 4; ++i){
sn = sqrbrd[s][i];
dst = dstbrd[s][i];
if(sn != NOSQUARE && (dst == 1 )){
c = grcolor[board[sn]];
for(j = 0; j < k; ++j)
if(grcolor[n[j]] == c)
addlink(n[j],board[sn],s);
}
if(sn != NOSQUARE && (dst == 2 )){
c = grcolor[board[sn]];
for(j = 0; j < k; ++j)
if(grcolor[n[j]] == c)
addlkg(n[j],board[sn],s);
}
}
}
void chkcon(int s,int g){ /* add connections to g at libs next to s */
/* s has a stone on it for group g */
int i,sn,sn2,j,cflag,gflag,c;
int grp[4],k,l,ldtmp,ldtm2;
for(i = 0; i < 4; i++){
grp[i] = -1;
}
c = grcolor[g];
i = fdir[s];
for(ldtmp = ldir[i]; i != ldtmp; ++i){
sn = s + nbr[i];
if(board[sn] != NOGROUP)continue;
for(j = 0; j < 4; ++j){
if(grcolor[board[sqrbrd[sn][j]]] == c &&
(dstbrd[sn][j] == 1 ))
addlink(g,board[sqrbrd[sn][j]],sn);
if(grcolor[board[sqrbrd[sn][j]]] == c &&
(dstbrd[sn][j] == 2 ))
addlkg(g,board[sqrbrd[sn][j]],sn);
}
cflag = FALSE;
k = 0;
j = fdir[sn];
for(ldtm2 = ldir[j]; j != ldtm2; ++j){
sn2 = sn + nbr[j];
if(sn2 == s)continue;
if(board[sn2] == NOGROUP)continue;
gflag = FALSE;
for(l = 0; l != k; ++l)
if(grp[l] == board[sn2])gflag = TRUE;
if(gflag)continue;
if(board[sn2] != g){
grp[k++] = board[sn2];
}
else cflag = TRUE;
}
if(!cflag)
for(j = 0; j != k; ++j)
if(grcolor[grp[j]] == c)addconn(grp[j],g,sn);
}
}
void portthread (void * port_ptr)
{
SOCKET s;
BT_PORT port_info ;
port_info = *(BT_PORT*) port_ptr ;
s = bt_listen (port_info.port);
if (!s)
_endthread();
while (1)
{
socklen_t addrlen = sizeof(SOCKADDR_IN);
SOCKADDR_IN addr ;
SOCKET client_sock;
BT_CLIENT * client ;
char reason, *ip;
client_sock = accept (s, (SOCKADDR*) &addr, &addrlen);
if (client_sock == -1)
continue;
ip = inet_ntoa (addr.sin_addr);
if ((reason = allow(ip)) <= 0)
{
switch (reason)
{
case 0:
logevent("Refused %s:%i (filter)",
ip,port_info.port);
break;
case -1:
logevent("Refused %s:%i (connection limit)",
ip,port_info.port);
break;
case -2:
logevent("Refused %s:%i (clone limit)",
ip,port_info.port);
break;
}
bt_close(client_sock);
continue;
}
client = addconn(ip,port_info.port);
client->sock = client_sock;
client->use_pass = port_info.use_pass ;
if (client->use_pass)
bt_cpy (client->password, port_info.password);
if (_beginthread (proxythread,0,client) == -1)
{
logevent ("Could not create proxy thread for %s:%i",
client->ip,client->port);
bt_close(client->sock);
delconn(client);
_endthread();
}
}
_endthread();
}