@node-dlc/wire/lib/deserialize/address/deserializeIPv4.ts

Lightning Network Wire Protocol

import { BufferReader } from '@node-dlc/bufio';

import { AddressIPv4 } from '../../domain/AddressIPv4';
import { ipv4StringFromBuffer } from './ipv4StringFromBuffer';

/**
 * Deserializes an IPv4 address from a reader and
 * returns an instance of an IPv4 Address.
 */
export function deserializeIPv4(reader: BufferReader): AddressIPv4 {
  const hostBytes = reader.readBytes(4);
  const port = reader.readUInt16BE();
  const host = ipv4StringFromBuffer(hostBytes);
  return new AddressIPv4(host, port);
}