Shellcheck compliance

.github/workflows/main.yml

@@ -14,3 +14,5 @@ jobs:
       - uses: actions/checkout@v3
       - name: Run ShellCheck
         uses: ludeeus/action-shellcheck@master
+        env:
+          SHELLCHECK_OPTS: -e SC1090 -e SC2009

firewall.sh

@@ -936,7 +936,7 @@ Whitelist_CDN() {
 	if [ "$cdnwhitelist" = "enabled" ]; then
 		{
 			# Apple AS714 | Akamai AS12222 AS16625 | HighWinds AS33438 AS20446 | Fastly AS54113 | GitHub AS36459
-			printf "AS714\nAS12222\nAS16625\nAS33438\nAS20446\nAS54113\nAS36459" | xargs -I {} sh -c 'curl -fsL --retry 3 --connect-timeout 3 --max-time 6 --retry-delay 1 --retry-all-errors https://asn.ipinfo.app/api/text/list/{} | awk -v asn={} '\''/^(((25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])\.){3}(25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])(\/(1?[0-9]|2?[0-9]|3?[0-2]))?)([[:space:]]|$)/{printf "add Skynet-Whitelist %s comment \"CDN-Whitelist: %s\"\n", $1, asn }'\'''
+			printf "AS714\nAS12222\nAS16625\nAS33438\nAS20446\nAS54113\nAS36459" | xargs -I {} sh -c "curl -fsL --retry 3 --connect-timeout 3 --max-time 6 --retry-delay 1 --retry-all-errors https://asn.ipinfo.app/api/text/list/{} | awk -v asn={} '/^(((25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])\.){3}(25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])(\/(1?[0-9]|2?[0-9]|3?[0-2]))?)([[:space:]]|$)/{printf \"add Skynet-Whitelist %s comment \\\"CDN-Whitelist: %s\\\"\\n\", \$1, asn }'"
 			curl -fsL --retry 3 --connect-timeout 3 --max-time 6 --retry-delay 1 --retry-all-errors https://www.cloudflare.com/ips-v4 | awk '/^(((25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])\.){3}(25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])(\/(1?[0-9]|2?[0-9]|3?[0-2]))?)([[:space:]]|$)/{printf "add Skynet-Whitelist %s comment \"CDN-Whitelist: CloudFlare\"\n", $1 }'
 			curl -fsL --retry 3 --connect-timeout 3 --max-time 6 --retry-delay 1 --retry-all-errors https://ip-ranges.amazonaws.com/ip-ranges.json | awk 'BEGIN{RS="(((25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])\\.){3}(25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])(\\/(1?[0-9]|2?[0-9]|3?[0-2]))?)"}{if(RT)printf "add Skynet-Whitelist %s comment \"CDN-Whitelist: Amazon\"\n", RT }'
 			curl -fsL --retry 3 --connect-timeout 3 --max-time 6 --retry-delay 1 --retry-all-errors https://api.github.com/meta | awk 'BEGIN{RS="(((25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])\\.){3}(25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])(\\/(1?[0-9]|2?[0-9]|3?[0-2]))?)"}{if(RT)printf "add Skynet-Whitelist %s comment \"CDN-Whitelist: Github\"\n", RT }'
@@ -1246,7 +1246,7 @@ Get_LocalName() {
 	localname="$(nvram get custom_clientlist | grep -ioE "<.*>$macaddr" | awk -F ">" '{print $(NF-1)}' | tr -d '<')"
 	if [ -z "$localname" ]; then localname="$(grep -F "$ipaddr " /var/lib/misc/dnsmasq.leases | awk '{print $4}')"; fi
 	if [ -z "$localname" ] || [ "$localname" = "*" ]; then
-		if [ ! -z "$macaddr" ]; then
+		if [ -n "$macaddr" ]; then
 			macaddr2="$(echo "$macaddr" | sed 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' | tr -d ':' | cut -c 1-6)"
 			localname="$(grep "$macaddr2" /www/ajax/ouiDB.json | sed 's/.*"\([^"]*\)".*/\1/')" 
 		fi