Treat ADS-R as a separate source type (higher priority than TIS-B, lower priority than direct ADS-B)

dump1090.h

@@ -138,6 +138,7 @@ typedef enum {
     SOURCE_MODE_S,         /* data from a Mode S message, no full CRC */
     SOURCE_MODE_S_CHECKED, /* data from a Mode S message with full CRC */
     SOURCE_TISB,           /* data from a TIS-B extended squitter message */
+    SOURCE_ADSR,           /* data from a ADS-R extended squitter message */
     SOURCE_ADSB,           /* data from a ADS-B extended squitter message */
 } datasource_t;
 

mode_s.c

@@ -1400,6 +1400,7 @@ static void decodeExtendedSquitter(struct modesMessage *mm)
             // IMF=0: AA field holds 24-bit ICAO aircraft address
             // IMF=1: AA field holds anonymous address or ground vehicle address or fixed obstruction address
             mm->addrtype = ADDR_ADSR_ICAO;
+            mm->source = SOURCE_ADSR;
             check_imf = 1;
             break;
 

net_io.c

@@ -2096,6 +2096,9 @@ static inline float heading_difference(float h1, float h2)
     case SOURCE_TISB:
         sourcetype = "T";
         break;
+    case SOURCE_ADSR:
+        sourcetype = "R";
+        break;
     case SOURCE_ADSB:
         sourcetype = "A";
         break;