From 41b78f0b5872a18257efede76e0c78fe76ef4af6 Mon Sep 17 00:00:00 2001
From: Jan Philipp Timme <jan.philipp@timme.it>
Date: Sat, 23 Nov 2019 19:47:03 +0100
Subject: [PATCH] Decode basic milter packet structure

---
 .gitignore |  4 ++++
 main.go    | 11 +++++++++++
 2 files changed, 15 insertions(+)

diff --git a/.gitignore b/.gitignore
index 0570206..2f4396f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,5 @@
+# Ignore .vagrant folder
+.vagrant
+
+# Ignore build result
 milter-experiment
diff --git a/main.go b/main.go
index 50fb88b..32ea9b4 100644
--- a/main.go
+++ b/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))
+
 		}
 	}
 }