Code to hopefully avoid existing entries.

tojam

@@ -48,9 +48,19 @@ add_server() {
             valid="false"
         fi
         if ! [[ "${serverInfo[2]}" =~ ^[1-9][0-9]*$ ]]; then
-            errorMessage+="Port must be numeric."
+            errorMessage+="Port must be numeric.\n"
             valid="false"
         fi
+        for i in "${!servers[@]}" ; do
+            if [[ "$i" == "${serverInfo[0]}" ]]; then
+                errorMessage+="Server name \"$i\" is already in use.\n"
+                valid="false"
+            fi
+            if [[ "${servers[${i}]}" == "${serverInfo[1]}" ]]; then
+                errorMessage+="Server address \"$i\" is already added.\n"
+                valid="false"
+            fi
+        done
         if [[ "${valid}" == "false" ]]; then
             dialog --backtitle "Tojam" \
                 --msgbox "${errorMessage}" -1 -1