/// <summary>
/// 验证一个端口号是否被使用
/// </summary>
/// <param name="ipaddr">IP对象</param>
/// <param name="port">需要验证的端口号</param>
/// <returns>如果被使用返回true,否则返回false</returns>
public static bool PortAvailable(this IPAddress ipaddr, int port)
{
List <int> tcpPorts = null;
List <int> udpPorts = null;
List <int> ipPorts = null;
var allports = IPAddressEx.GetUsedPorts(out tcpPorts, out udpPorts, out ipPorts);
return(allports.Contains(port));
}
/// <summary>
/// 获取已使用的端口号
/// </summary>
/// <returns>当前所有已使用端口号集合</returns>
public static List <int> GetUsedPorts()
{
List <int> tcpPorts, udpPorts, ipPorts;
return(IPAddressEx.GetUsedPorts(out tcpPorts, out udpPorts, out ipPorts));
}