ddns-scripts-pdns: Add package

Signed-off-by: Cristian Le <git@lecris.me>

net/ddns-scripts/files/usr/lib/ddns/update_pdns.sh

@@ -0,0 +1,52 @@
+#!/bin/sh
+# Derived from update_gandi_net.sh
+. /usr/share/libubox/jshn.sh
+
+local __TTL=600
+local __RRTYPE
+local __STATUS
+
+[ -z "$username" ] && write_log 14 "Service section not configured correctly! Missing subdomain as 'username'"
+[ -z "$password" ] && write_log 14 "Service section not configured correctly! Missing API Key as 'password'"
+[ -z "$param_opt" ] && write_log 14 "Service section not configured correctly! Missing PowerDNS URL as 'Optional Parameter'(param_opt)"
+
+# Create endpoint from $param_opt
+# e.g. param_opt=http://127.0.0.1:8081
+local __ENDPOINT="$param_opt/api/v1/servers/localhost/zones"
+
+[ $use_ipv6 -ne 0 ] && __RRTYPE="AAAA" || __RRTYPE="A"
+
+# Build JSON payload
+json_init
+json_add_array rrsets
+json_add_object
+	json_add_string name "$username.$domain"
+	json_add_string type "$__RRTYPE"
+	json_add_int ttl $__TTL
+	json_add_string changetype "REPLACE"
+	json_add_array records
+	json_add_object
+		json_add_string content "$__IP"
+		json_add_boolean disabled 0
+	json_close_object
+	json_close_array
+json_close_object
+json_close_array
+
+__STATUS=$(curl -Ss -X PATCH "$__ENDPOINT/$domain" \
+	-H "X-Api-Key: $password" \
+	-H "Content-Type: application/json" \
+	-d "$(json_dump)" \
+	-w "%{http_code}\n" \
+	-o $DATFILE 2>$ERRFILE)
+
+
+if [ $? -ne 0 ]; then
+	write_log 14 "Curl failed: $(cat $ERRFILE)"
+	return 1
+elif [ -z $__STATUS ] || [ $__STATUS != 204 ]; then
+	write_log 14 "PowerDNS request failed: $__STATUS \n$(cat $DATFILE)"
+	return 1
+fi
+
+return 0