Add support for setting API port from the config file (#8435)

* Add support for setting API port from the config file

* Update PortduinoGlue.cpp

Fix typo in var identifier

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>

src/platform/portduino/PortduinoGlue.cpp

@@ -55,6 +55,7 @@ void cpuDeepSleep(uint32_t msecs)
 void updateBatteryLevel(uint8_t level) NOT_IMPLEMENTED("updateBatteryLevel");
 
 int TCPPort = SERVER_API_DEFAULT_PORT;
+bool checkConfigPort = true;
 
 static error_t parse_opt(int key, char *arg, struct argp_state *state)
 {
@@ -63,6 +64,7 @@ static error_t parse_opt(int key, char *arg, struct argp_state *state)
         if (sscanf(arg, "%d", &TCPPort) < 1)
             return ARGP_ERR_UNKNOWN;
         else
+            checkConfigPort = false;
             printf("Using config file %d\n", TCPPort);
         break;
     case 'c':
@@ -870,6 +872,14 @@ bool loadConfig(const char *configPath)
                 std::cout << "Cannot set both MACAddress and MACAddressSource!" << std::endl;
                 exit(EXIT_FAILURE);
             }
+            if (checkConfigPort) {
+                portduino_config.api_port = (yamlConfig["General"]["APIPort"]).as<int>(-1);
+                if (portduino_config.api_port != -1 &&
+                portduino_config.api_port > 1023 &&
+                portduino_config.api_port < 65536) {
+                TCPPort = (portduino_config.api_port);
+                }
+            }
             portduino_config.mac_address = (yamlConfig["General"]["MACAddress"]).as<std::string>("");
             if (portduino_config.mac_address != "") {
                 portduino_config.mac_address_explicit = true;

src/platform/portduino/PortduinoGlue.h

@@ -175,6 +175,7 @@ extern struct portduino_config_struct {
     std::string mac_address = "";
     bool mac_address_explicit = false;
     std::string mac_address_source = "";
+    int api_port = -1;
     std::string config_directory = "";
     std::string available_directory = "/etc/meshtasticd/available.d/";
     int maxtophone = 100;
@@ -508,6 +509,8 @@ extern struct portduino_config_struct {
         out << YAML::Key << "General" << YAML::Value << YAML::BeginMap;
         if (config_directory != "")
             out << YAML::Key << "ConfigDirectory" << YAML::Value << config_directory;
+        if (api_port != -1)
+            out << YAML::Key << "TCPPort" << YAML::Value << api_port;
         if (mac_address_explicit)
             out << YAML::Key << "MACAddress" << YAML::Value << mac_address;
         if (mac_address_source != "")