From d4dea212ddb6d8408a2f1177b297bda43175c011 Mon Sep 17 00:00:00 2001
From: Daniel <dhaavi@users.noreply.github.com>
Date: Mon, 2 Nov 2020 14:16:35 +0100
Subject: [PATCH] Fix decoding IPv6 addresses

---
 network/proc/tables.go | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/network/proc/tables.go b/network/proc/tables.go
index 94f3198b..8ea303d1 100644
--- a/network/proc/tables.go
+++ b/network/proc/tables.go
@@ -207,6 +207,7 @@ func procDelimiter(c rune) bool {
 }
 
 func convertIPv4(data string) net.IP {
+	// Decode and bullshit check the data length.
 	decoded, err := hex.DecodeString(data)
 	if err != nil {
 		log.Warningf("proc: could not parse IPv4 %s: %s", data, err)
@@ -216,11 +217,14 @@ func convertIPv4(data string) net.IP {
 		log.Warningf("proc: decoded IPv4 %s has wrong length", decoded)
 		return nil
 	}
+
+	// Build the IPv4 address with the reversed byte order.
 	ip := net.IPv4(decoded[3], decoded[2], decoded[1], decoded[0])
 	return ip
 }
 
 func convertIPv6(data string) net.IP {
+	// Decode and bullshit check the data length.
 	decoded, err := hex.DecodeString(data)
 	if err != nil {
 		log.Warningf("proc: could not parse IPv6 %s: %s", data, err)
@@ -230,6 +234,11 @@ func convertIPv6(data string) net.IP {
 		log.Warningf("proc: decoded IPv6 %s has wrong length", decoded)
 		return nil
 	}
+
+	// Build the IPv6 address with the translated byte order.
+	for i := 0; i < 16; i += 4 {
+		decoded[i], decoded[i+1], decoded[i+2], decoded[i+3] = decoded[i+3], decoded[i+2], decoded[i+1], decoded[i]
+	}
 	ip := net.IP(decoded)
 	return ip
 }