Use subnet mask to find server if MDNS fails

Fixes #58.
newHeiko · Nov 14, 2023 · cbf06dd · cbf06dd
1 parent 29e7f04
commit cbf06dd
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/software/esp-firmware/locoHandling.cpp b/software/esp-firmware/locoHandling.cpp
@@ -355,7 +355,12 @@ void locoConnect(void)
  if(n == 0)
  {
  automaticServerIP = WiFi.localIP();
- automaticServerIP[3] = 1;
+ IPAddress netmask = WiFi.subnetMask();
+ for(uint32_t i=0; i<=3; i++)
+ {
+ automaticServerIP[i] &= netmask[i];
+ }
+ automaticServerIP[3] += 1;
  automaticServer = strdup(automaticServerIP.toString().c_str());
  log_d("No MDNS-announced wiThrottle server found. Trying LNWI/DCCEX at %s.", automaticServer);
  }