initial test release for quecmanager-beta

ipk-source/sdxpinn-quecmanager-beta/root/www/cgi-bin/advance/fetch_macs.sh

@@ -0,0 +1,49 @@
+#!/bin/sh
+echo "Content-type: application/json"
+echo ""
+
+# Create a temporary file to store the processed data
+temp_file=$(mktemp)
+
+# Process ARP entries and store in temporary file
+arp -a | while IFS= read -r line; do
+    if [ -n "$line" ]; then
+        # Extract hostname (or IP if hostname is "?"), IP, and MAC
+        hostname=$(echo "$line" | awk '{print $1}')
+        ip=$(echo "$line" | awk -F '[()]' '{print $2}')
+        mac=$(echo "$line" | awk '{print $4}')
+        
+        # Skip entries without valid MAC addresses
+        if [ "$mac" = "<incomplete>" ]; then
+            continue
+        fi
+
+        # If hostname is "?", use the IP address instead
+        if [ "$hostname" = "?" ]; then
+            hostname="$ip"
+        fi
+
+        # Store each entry in the temp file
+        echo "$hostname:$ip:$mac" >> "$temp_file"
+    fi
+done
+
+# Initialize JSON array
+echo -n "["
+
+# Process the temporary file to create JSON
+first=true
+while IFS=: read -r hostname ip mac; do
+    if [ "$first" = true ]; then
+        first=false
+    else
+        echo -n ","
+    fi
+    echo -n "{\"hostname\":\"$hostname\",\"ip\":\"$ip\",\"mac\":\"$mac\"}"
+done < "$temp_file"
+
+# Close the JSON array
+echo "]"
+
+# Clean up
+rm -f "$temp_file"