- bug fix in coc_server.c

- bug fixes in tecs
- new system to determine host:port in six and tecs_client

tecs/coc_server.c

@@ -387,7 +387,7 @@ int CocPushThisHandler(CocVar *var, CocClient *cl, void *base, int mode) {
     var->pending=1;
   }
   n=cl->npend;
-  if (n>=sizeof(cl->pend)) {
+  if (n * sizeof(Pend) >= sizeof(cl->pend)) {
     ERR_MSG("too many commands")
   }
   cl->pend[n].var=var;