From 2fe5f14383395273b5a794e7cc73180049720390 Mon Sep 17 00:00:00 2001
From: Paul-Christian Volkmer <code@pcvolkmer.de>
Date: Sun, 25 Dec 2022 20:37:17 +0100
Subject: [PATCH] Print which client uses already given public key

---
 scripts/add-client.sh | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/scripts/add-client.sh b/scripts/add-client.sh
index 4fb7d0d..d8c5854 100755
--- a/scripts/add-client.sh
+++ b/scripts/add-client.sh
@@ -20,9 +20,11 @@ if [ -z $1 ]; then
   CLIENT_PUB_KEY=$(echo $CLIENT_SEC_KEY | wg pubkey)
 else
   # Check if public key is already used
-  for key in $(cat $DEVICE.conf | grep "PublicKey = " | sed "s/PublicKey = \(.*\)$/\1/"); do
-    if [[ "$1" == "$key" ]]; then
-      echo "Key '$1' already used!"
+  clients=($(cat $DEVICE.conf | grep "# Client" | sed "s/# Client \([0-9]*\)$/\1/"))
+  keys=($(cat $DEVICE.conf | grep "PublicKey = " | sed "s/PublicKey = \(.*\)$/\1/"))
+  for i in "${!keys[@]}"; do
+    if [[ "$1" = "${keys[$i]}" ]]; then
+      echo "Key '$1' already used in 'Client ${clients[$i]}'"
       exit 1
     fi
   done