it works!

g2.everything.cfg

@@ -26,10 +26,28 @@ gateway = {
 }
 
 module = {
-	a = {
+	a = { # An MMDVMHost module is shown
-#		type = ""
+          # make sure this module letter agrees with the [D-Star] Module letter in MMDVM.ini
+          # in MMDVM.ini its uppercase, here use lower case.
+          # We show a here, but the convention on this software is:
+          # 23 cm modules will use "a"
+          # 70 cm modules will use "b"
+          #  2  M module will use "c"
+		type = "mmdvm"
 #		ip = "127.0.0.1"
-#		port = 19998       # default for mod a
+#		port = 19998       # default for mod a, you usually don't need to specify this
+#		frequency = 0      # if you specify here, this frequency will show up on the QuadNet USER GATEWAYS webpage
+#		offset = 0
+#		range = 0          # the range of this repeater, in meters 1609.344 meters is 1.0 miles
+#       agl = 0            # the height above ground level for this repeater's antenna
+#		latitude = 0       # you can leave this unspecified for a mobile rig
+#		longitude = 0      # like the latitude
+#		desc1 = ""         # maximum of 20 characters, most special symbols are not allowed
+#		desc2 = ""         # just like desc1
+#		url = "github.com/n7tae/g2_ircddb"    # 80 characters max
+		# In review, for an MMDVM module, you only need to specify the type = "mmdvm" and
+		# make sure the module letter agrees with what's in "MMDVM.ini.
+		# Also see the mmdvm section below, although it usually doesn't need specifying.
 	}
 
 	b = {
@@ -42,7 +60,7 @@ module = {
 		# Otherwise do not set callsign and we will use ircddb.username
 #		callsign = ""
 
-		# the frequency of your DVAP in MHz.
+		# the frequency of your DVRPTR in MHz.
 #		frequency = 145.5
 
 		# the TX/RX offset in MHz, use 0.0 for simplex
@@ -221,6 +239,13 @@ module = {
 	}
 }
 
+# you only need this mmdvm section if you set non-standard D-Star ports on your MMDVMHost software
+mmdvm = {
+#	these need to be the same as they are in your MMDVM.ini file (in the [D-Star Network] section
+# 	If you change them there, then change them here!
+#	gateway_port = 20010
+#	local_port = 20011
+}
 
 log = {
 	# debuging and extra logging switches

g2_link.cpp

@@ -3322,8 +3322,7 @@ static void runit()
 						        (readBuffer[17] == 0x08) ||
 						        (readBuffer[17] == 0x20) ||
 						        (readBuffer[17] == 0x28))) {
-							if (only_link_unlink &&
+							if (only_link_unlink && (link_unlink_user.find(call) == link_unlink_user.end())) {
-							        (link_unlink_user.find(call) == link_unlink_user.end())) {
 								traceit("link request denied, unauthorized rf user [%s]\n", call);
 							} else {
 								memset(temp_repeater, ' ', CALL_SIZE);
@@ -3340,10 +3339,7 @@ static void runit()
 									space_p = strchr(linked_remote_system, ' ');
 									if (space_p)
 										*space_p = '\0';
-									sprintf(notify_msg, "%c_already_linked.dat_LINKED_%s_%c",
+									sprintf(notify_msg, "%c_already_linked.dat_LINKED_%s_%c", to_remote_g2[i].from_mod, linked_remote_system, to_remote_g2[i].to_mod);
-									        to_remote_g2[i].from_mod,
-									        linked_remote_system,
-									        to_remote_g2[i].to_mod);
 									audio_notify(notify_msg);
 								}
 							}

mmdvm_modem.cpp

@@ -449,16 +449,16 @@ bool CMMDVMModem::ReadConfig(const char *cfgFile)
 	} else
 		return true;
 
-	GetValue(cfg, std::string(mmdvm_path+".g2_in_port").c_str(), i, 10000, 65535, 19000);
+	GetValue(cfg, "gateway.internal.port", i, 10000, 65535, 19000);
 	G2_IN_PORT = (unsigned short)i;
 
-	GetValue(cfg, std::string(mmdvm_path+".g2_out_port").c_str(), i, 10000, 65535, 19998+repeater_module);
+	GetValue(cfg, std::string(mmdvm_path+".port").c_str(), i, 10000, 65535, 19998+repeater_module);
 	G2_OUT_PORT = (unsigned short)i;
 
-	GetValue(cfg, std::string(mmdvm_path+".mmdvm_in_port").c_str(), i, 10000, 65535, 20011);
+	GetValue(cfg, "mmdvm.local_port", i, 10000, 65535, 20011);
 	MMDVM_IN_PORT = (unsigned short)i;
 
-	GetValue(cfg, std::string(mmdvm_path+".mmdvm_out_port").c_str(), i, 10000, 65535, 20010);
+	GetValue(cfg, "mmdvm.gateway_port", i, 10000, 65535, 20010);
 	MMDVM_OUT_PORT = (unsigned short)i;
 
 	if (GetValue(cfg, "gateway.ip", value, 7, IP_SIZE, "127.0.0.1")) {
@@ -477,7 +477,7 @@ bool CMMDVMModem::ReadConfig(const char *cfgFile)
 	return false;
 }
 
-void CMMDVMModem::SignalCatch(int signum)
+void CMMDVMModem::SignalCatch(const int signum)
 {
 	if ((signum == SIGTERM) || (signum == SIGINT)  || (signum == SIGHUP))
 		keep_running = false;

mmdvm_modem.h

@@ -43,7 +43,7 @@ public:
 private:
 	// functions
 	bool Initialize(const char *cfgfile);
-	static void SignalCatch(int signum);
+	static void SignalCatch(const int signum);
 	bool ProcessGateway(const int len, const unsigned char *raw);
 	bool ProcessMMDVM(const int len, const unsigned char *raw);
 	int OpenSocket(const std::string &address, unsigned short port);