/// <summary>
/// Initializes a new server which listens for TCP packets.
/// </summary>
/// <param name="ip">The IP address to use for the server.</param>
/// <param name="port">The port on which the server runs.</param>
/// <exception cref="ArgumentException">
/// IP is invalid or no IPv4 Address.
/// </exception>
/// <exception cref="ArgumentOutOfRangeException">
/// Port is within an invalid range (0-1024).
/// </exception>
/// <exception cref="AccessViolationException">
/// Specified port is already in use.
/// </exception>
/// <exception cref="InvalidOperationException">
/// Server could not be started.
/// </exception>
public TinyTcpServer(string ip, int port)
{
int retVal = 0;
IPAddress address;
if (!(IPUtil.IsValid(ip, out address)))
{
throw new ArgumentException(SR.ERROR_IPINVALID, nameof(ip));
}
retVal = InitServer(address, port);
if (1 == retVal)
{
throw new ArgumentOutOfRangeException(
nameof(port), port, SR.ERROR_WELLKNOWNPORT);
}
else if (2 == retVal)
{
throw new AccessViolationException(SR.ERROR_USEDPORT);
}
else if (3 == retVal)
{
throw new ArgumentException(SR.ERROR_INVALIDPARAM);
}
else if (4 <= retVal)
{
throw new InvalidOperationException(SR.ERROR_NOSTART);
}
}
/// <summary>
/// Initializes a new server which listens for TCP packets.
/// </summary>
/// <param name="endpoint">IPEndPoint containg server address
/// and port.</param>
/// <exception cref="ArgumentException">
/// IP is invalid or no IPv4 Address.
/// </exception>
/// <exception cref="ArgumentOutOfRangeException">
/// Port is within an invalid range (0-1024).
/// </exception>
/// <exception cref="AccessViolationException">
/// Specified port is already in use.
/// </exception>
/// <exception cref="InvalidOperationException">
/// Server could not be started.
/// </exception>
public TinyTcpServer(IPEndPoint endpoint)
{
int retVal = 0;
IPAddress address;
string ip = endpoint.Address.ToString();
if (!(IPUtil.IsValid(ip, out address)))
{
throw new ArgumentException(
SR.ERROR_IPINVALID, nameof(endpoint));
}
// Initialize server and port.
retVal = InitServer(address, endpoint.Port);
if (1 == retVal)
{
throw new ArgumentOutOfRangeException(
nameof(endpoint), endpoint.Port, SR.ERROR_WELLKNOWNPORT);
}
else if (2 == retVal)
{
throw new AccessViolationException(SR.ERROR_USEDPORT);
}
else if (3 == retVal)
{
throw new ArgumentException(SR.ERROR_INVALIDPARAM);
}
else if (4 <= retVal)
{
throw new InvalidOperationException(SR.ERROR_NOSTART);
}
}
/// <summary>
/// Initializes a new client instance for
/// a client-server communication over TCP.
/// </summary>
/// <param name="serverIp">The IPv4 address of the server.</param>
/// <param name="serverPort">The port on which the
/// server ca be reached.</param>
/// <exception cref="ArgumentException">
/// Invalid IPv4 address</exception>
public TinyTcpClient(IPAddress serverIp, int serverPort)
{
IPAddress address;
if (!(IPUtil.IsValid(serverIp.ToString(), out address)))
{
throw new ArgumentException(
SR.ERROR_IPINVALID,
nameof(serverIp));
} /* Check if IP is valid and IPv4. */
ServerAddress = address;
ServerPort = serverPort;
}