Decode basic milter packet structure

.gitignore

@@ -1 +1,5 @@
+# Ignore .vagrant folder
+.vagrant
+
+# Ignore build result
 milter-experiment

main.go

@@ -34,6 +34,17 @@ func handleMtaConnection(clientConnection *bufio.ReadWriter) {
 				logger.Errorln(err.Error())
 			}
 			logger.Debugf("Parsed length: %d\n", packetLength)
+
+			// Next up is a character, indicating the milter command
+			logger.Debugf("Parsing command from byte: %X\n", buf[4])
+			command := string(buf[4])
+			logger.Debugf("Parsed packet command: %s\n", command)
+
+			// Last part is data with lenght len-1
+			data := make([]byte, packetLength)
+			data = buf[5 : 5+packetLength-1]
+			logger.Debugf("Hexdump of packet payload read:\n%s", hex.Dump(data))
+
 		}
 	}
 }