Initial commit

parser.mjs

@@ -0,0 +1,42 @@
+export function parse_ipv4(value) {
+	const D = parseInt(value.slice(0, 2), 16);
+	const C = parseInt(value.slice(2, 4), 16);
+	const B = parseInt(value.slice(4, 6), 16);
+	const A = parseInt(value.slice(6, 8), 16);
+	return `${A}.${B}.${C}.${D}`;
+}
+
+export function parse_socket_state(socket_state) {
+	const ss_lines = socket_state.split('\n').map(line => line.trim());
+	const fields = ss_lines[0].split(/\s+/);
+	const result = [];
+
+	const field_parsers = {
+		'st': (value => parseInt(value, 16)),
+		'local_address': parse_ipv4,
+		'rem_address': parse_ipv4,
+	};
+
+	for (const line of ss_lines.slice(1)) {
+		const values = line.split(/\s+/);
+		const v_iter = values[Symbol.iterator]();
+		const pending = {};
+		for (const column of fields.slice(0, -1)) {
+			pending[column] = v_iter.next().value;
+		}
+		pending[fields.at(-1)] = [...v_iter].join(' ');
+
+		for (const [name, parser] of Object.entries(field_parsers)) {
+			const local_value = pending[name];
+			if (local_value) {
+				pending[name] = parser(local_value);
+			}
+		}
+
+		result.push(pending);
+
+	}
+	return result;
+}
+
+