в 15:31, 26 мая 2010

2010-05-26T15:31:19Z

Admin: 1 версия

2010-05-26T11:46:07Z

1 версия

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==Bad Udp Client==

<source lang="csharp">
/*
C# Network Programming
by Richard Blum
Publisher: Sybex
ISBN: 0782141765
*/
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class BadUdpClient
{
public static void Main()
{
byte[] data = new byte[30];
string input, stringData;
IPEndPoint ipep = new IPEndPoint(
IPAddress.Parse("127.0.0.1"), 9050);
Socket server = new Socket(AddressFamily.InterNetwork,
SocketType.Dgram, ProtocolType.Udp);
string welcome = "Hello, are you there?";
data = Encoding.ASCII.GetBytes(welcome);
server.SendTo(data, data.Length, SocketFlags.None, ipep);
IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
EndPoint tmpRemote = (EndPoint)sender;
data = new byte[30];
int recv = server.ReceiveFrom(data, ref tmpRemote);
Console.WriteLine("Message received from {0}:", tmpRemote.ToString());
Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));

while(true)
{
input = Console.ReadLine();
if (input == "exit")
break;
server.SendTo(Encoding.ASCII.GetBytes(input), tmpRemote);
data = new byte[30];
recv = server.ReceiveFrom(data, ref tmpRemote);
stringData = Encoding.ASCII.GetString(data, 0, recv);
Console.WriteLine(stringData);
}
Console.WriteLine("Stopping client");
server.Close();
}
}

</source>

==Best Udp Client==

<source lang="csharp">
/*
C# Network Programming
by Richard Blum
Publisher: Sybex
ISBN: 0782141765
*/
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class BestUdpClient
{
private static byte[] data = new byte[1024];
private static IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
private static EndPoint Remote = (EndPoint)sender;
private static int size = 30;
private static int AdvSndRcvData(Socket s, byte[] message, EndPoint rmtdevice)
{
int recv = 0;
int retry = 0;
while (true)
{
Console.WriteLine("Attempt #{0}", retry);
try
{
s.SendTo(message, message.Length, SocketFlags.None, rmtdevice);
data = new byte[size];
recv = s.ReceiveFrom(data, ref Remote);
} catch (SocketException e)
{
if (e.ErrorCode == 10054)
recv = 0;
else if (e.ErrorCode == 10040)
{
Console.WriteLine("Error receiving packet");
size += 10;
recv = 0;
}
}
if (recv > 0)
{
return recv;
} else
{
retry++;
if (retry > 4)
{
return 0;
}
}
}
}
public static void Main()
{
string input, stringData;
int recv;
IPEndPoint ipep = new IPEndPoint(
IPAddress.Parse("127.0.0.1"), 9050);
Socket server = new Socket(AddressFamily.InterNetwork,
SocketType.Dgram, ProtocolType.Udp);
int sockopt = (int)server.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout);
Console.WriteLine("Default timeout: {0}", sockopt);
server.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
sockopt = (int)server.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout);
Console.WriteLine("New timeout: {0}", sockopt);

string welcome = "Hello, are you there?";
data = Encoding.ASCII.GetBytes(welcome);
recv = AdvSndRcvData(server, data, ipep);
if (recv > 0)
{
stringData = Encoding.ASCII.GetString(data, 0, recv);
Console.WriteLine(stringData);
} else
{
Console.WriteLine("Unable to communicate with remote host");
return;
}
while(true)
{
input = Console.ReadLine();
if (input == "exit")
break;
recv = AdvSndRcvData(server, Encoding.ASCII.GetBytes(input), ipep);
if (recv > 0)
{
stringData = Encoding.ASCII.GetString(data, 0, recv);
Console.WriteLine(stringData);
} else
Console.WriteLine("Did not receive an answer");
}
Console.WriteLine("Stopping client");
server.Close();
}
}

</source>

==Better Udp Client==

<source lang="csharp">
/*
C# Network Programming
by Richard Blum
Publisher: Sybex
ISBN: 0782141765
*/
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class BetterdUdpClient
{
public static void Main()
{
byte[] data = new byte[30];
string input, stringData;
IPEndPoint ipep = new IPEndPoint(
IPAddress.Parse("127.0.0.1"), 9050);
Socket server = new Socket(AddressFamily.InterNetwork,
SocketType.Dgram, ProtocolType.Udp);
string welcome = "Hello, are you there?";
data = Encoding.ASCII.GetBytes(welcome);
server.SendTo(data, data.Length, SocketFlags.None, ipep);
IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
EndPoint tmpRemote = (EndPoint)sender;
data = new byte[30];
int recv = server.ReceiveFrom(data, ref tmpRemote);
Console.WriteLine("Message received from {0}:", tmpRemote.ToString());
Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));

int i = 30;
while(true)
{
input = Console.ReadLine();
if (input == "exit")
break;
server.SendTo(Encoding.ASCII.GetBytes(input), tmpRemote);
data = new byte[i];
try
{
recv = server.ReceiveFrom(data, ref tmpRemote);
stringData = Encoding.ASCII.GetString(data, 0, recv);
Console.WriteLine(stringData);
} catch (SocketException)
{
Console.WriteLine("WARNING: data lost, retry message.");
i += 10;
}
}
Console.WriteLine("Stopping client");
server.Close();
}
}

</source>

==Binary Udp Client==

<source lang="csharp">
/*
C# Network Programming
by Richard Blum
Publisher: Sybex
ISBN: 0782141765
*/
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class BinaryUdpClient
{
public static void Main()
{
byte[] data = new byte[1024];
string stringData;
UdpClient server = new UdpClient("127.0.0.1", 9050);
IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
string welcome = "Hello, are you there?";
data = Encoding.ASCII.GetBytes(welcome);
server.Send(data, data.Length);
data = new byte[1024];
data = server.Receive(ref sender);
Console.WriteLine("Message received from {0}:", sender.ToString());
stringData = Encoding.ASCII.GetString(data, 0, data.Length);
Console.WriteLine(stringData);

int test1 = 45;
double test2 = 3.14159;
int test3 = -1234567890;
bool test4 = false;
string test5 = "This is a test.";
byte[] data1 = BitConverter.GetBytes(test1);
server.Send(data1, data1.Length);
byte[] data2 = BitConverter.GetBytes(test2);
server.Send(data2, data2.Length);
byte[] data3 = BitConverter.GetBytes(test3);
server.Send(data3, data3.Length);
byte[] data4 = BitConverter.GetBytes(test4);
server.Send(data4, data4.Length);
byte[] data5 = Encoding.ASCII.GetBytes(test5);
server.Send(data5, data5.Length);
Console.WriteLine("Stopping client");
server.Close();
}
}

</source>

==Exception Udp Client==

<source lang="csharp">
/*
C# Network Programming
by Richard Blum
Publisher: Sybex
ISBN: 0782141765
*/
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class ExceptionUdpClient
{
public static void Main()
{
byte[] data = new byte[1024];
string input, stringData;
int recv;
IPEndPoint ipep = new IPEndPoint(
IPAddress.Parse("127.0.0.1"), 9050);
Socket server = new Socket(AddressFamily.InterNetwork,
SocketType.Dgram, ProtocolType.Udp);
int sockopt = (int)server.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout);
Console.WriteLine("Default timeout: {0}", sockopt);
server.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
sockopt = (int)server.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout);
Console.WriteLine("New timeout: {0}", sockopt);
string welcome = "Hello, are you there?";
data = Encoding.ASCII.GetBytes(welcome);
server.SendTo(data, data.Length, SocketFlags.None, ipep);
IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
EndPoint Remote = (EndPoint)sender;
data = new byte[1024];
try
{
recv = server.ReceiveFrom(data, ref Remote);
Console.WriteLine("Message received from {0}:", Remote.ToString());
Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));
} catch (SocketException)
{
Console.WriteLine("Problem communicating with remote server");
return;
}
while(true)
{
input = Console.ReadLine();
if (input == "exit")
break;
server.SendTo(Encoding.ASCII.GetBytes(input), ipep);
data = new byte[1024];
try
{
recv = server.ReceiveFrom(data, ref Remote);
stringData = Encoding.ASCII.GetString(data, 0, recv);
Console.WriteLine(stringData);
} catch (SocketException)
{
Console.WriteLine("Error receiving message");
}
}
Console.WriteLine("Stopping client");
server.Close();
}
}

</source>

==Odd Udp Client==

<source lang="csharp">
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class OddUdpClient
{
public static void Main()
{
byte[] data = new byte[1024];
string input, stringData;
IPEndPoint ipep = new IPEndPoint(
IPAddress.Parse("127.0.0.1"), 9050);
Socket server = new Socket(AddressFamily.InterNetwork,
SocketType.Dgram, ProtocolType.Udp);
server.Connect(ipep);
string welcome = "Hello, are you there?";
data = Encoding.ASCII.GetBytes(welcome);
server.Send(data);
data = new byte[1024];
int recv = server.Receive(data);
Console.WriteLine("Message received from {0}:", ipep.ToString());
Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));

while(true)
{
input = Console.ReadLine();
if (input == "exit")
break;
server.Send(Encoding.ASCII.GetBytes(input));
data = new byte[1024];
recv = server.Receive(data);
stringData = Encoding.ASCII.GetString(data, 0, recv);
Console.WriteLine(stringData);
}
Console.WriteLine("Stopping client");
server.Close();
}
}

</source>

==Retry Udp Client==

<source lang="csharp">
/*
C# Network Programming
by Richard Blum
Publisher: Sybex
ISBN: 0782141765
*/
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class RetryUdpClient
{
private byte[] data = new byte[1024];
private static IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
private static EndPoint Remote = (EndPoint)sender;
private int SndRcvData(Socket s, byte[] message, EndPoint rmtdevice)
{
int recv;
int retry = 0;
while (true)
{
Console.WriteLine("Attempt #{0}", retry);
try
{
s.SendTo(message, message.Length, SocketFlags.None, rmtdevice);
data = new byte[1024];
recv = s.ReceiveFrom(data, ref Remote);
} catch (SocketException)
{
recv = 0;
}
if (recv > 0)
{
return recv;
} else
{
retry++;
if (retry > 4)
{
return 0;
}
}
}
}
public RetryUdpClient()
{
string input, stringData;
int recv;
IPEndPoint ipep = new IPEndPoint(
IPAddress.Parse("127.0.0.1"), 9050);
Socket server = new Socket(AddressFamily.InterNetwork,
SocketType.Dgram, ProtocolType.Udp);
int sockopt = (int)server.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout);
Console.WriteLine("Default timeout: {0}", sockopt);
server.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
sockopt = (int)server.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout);
Console.WriteLine("New timeout: {0}", sockopt);
string welcome = "Hello, are you there?";
data = Encoding.ASCII.GetBytes(welcome);
recv = SndRcvData(server, data, ipep);
if (recv > 0)
{
stringData = Encoding.ASCII.GetString(data, 0, recv);
Console.WriteLine(stringData);
} else
{
Console.WriteLine("Unable to communicate with remote host");
return;
}
while(true)
{
input = Console.ReadLine();
if (input == "exit")
break;
recv = SndRcvData(server, Encoding.ASCII.GetBytes(input), ipep);
if (recv > 0)
{
stringData = Encoding.ASCII.GetString(data, 0, recv);
Console.WriteLine(stringData);
} else
Console.WriteLine("Did not receive an answer");
}
Console.WriteLine("Stopping client");
server.Close();
}
public static void Main()
{
RetryUdpClient ruc = new RetryUdpClient();
}
}

</source>

==Simple Udp Client==

<source lang="csharp">
/*
C# Network Programming
by Richard Blum
Publisher: Sybex
ISBN: 0782141765
*/
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class SimpleUdpClient
{
public static void Main()
{
byte[] data = new byte[1024];
string input, stringData;
IPEndPoint ipep = new IPEndPoint(
IPAddress.Parse("127.0.0.1"), 9050);
Socket server = new Socket(AddressFamily.InterNetwork,
SocketType.Dgram, ProtocolType.Udp);

string welcome = "Hello, are you there?";
data = Encoding.ASCII.GetBytes(welcome);
server.SendTo(data, data.Length, SocketFlags.None, ipep);
IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
EndPoint Remote = (EndPoint)sender;
data = new byte[1024];
int recv = server.ReceiveFrom(data, ref Remote);
Console.WriteLine("Message received from {0}:", Remote.ToString());
Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));
while(true)
{
input = Console.ReadLine();
if (input == "exit")
break;
server.SendTo(Encoding.ASCII.GetBytes(input), Remote);
data = new byte[1024];
recv = server.ReceiveFrom(data, ref Remote);
stringData = Encoding.ASCII.GetString(data, 0, recv);
Console.WriteLine(stringData);
}
Console.WriteLine("Stopping client");
server.Close();
}
}

</source>

==Test Udp Client==

<source lang="csharp">
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class TestUdpClient
{
public static void Main()
{
byte[] data = new byte[1024];
IPEndPoint ipep = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 9050);
Socket server = new Socket(AddressFamily.InterNetwork,SocketType.Dgram, ProtocolType.Udp);
string welcome = "Hello, are you there?";
data = Encoding.ASCII.GetBytes(welcome);
server.SendTo(data, data.Length, SocketFlags.None, ipep);
IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
EndPoint tmpRemote = (EndPoint)sender;
data = new byte[1024];
int recv = server.ReceiveFrom(data, ref tmpRemote);
Console.WriteLine("Message received from {0}:", tmpRemote.ToString());
Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));

server.SendTo(Encoding.ASCII.GetBytes("message 1"), tmpRemote);
server.SendTo(Encoding.ASCII.GetBytes("message 2"), tmpRemote);
server.SendTo(Encoding.ASCII.GetBytes("message 3"), tmpRemote);
server.SendTo(Encoding.ASCII.GetBytes("message 4"), tmpRemote);
server.SendTo(Encoding.ASCII.GetBytes("message 5"), tmpRemote);
Console.WriteLine("Stopping client");
server.Close();
}
}

</source>

==Time out Udp Client==

<source lang="csharp">
/*
C# Network Programming
by Richard Blum
Publisher: Sybex
ISBN: 0782141765
*/
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class TimeoutUdpClient
{
public static void Main()
{
byte[] data = new byte[1024];
string input, stringData;
int recv;
IPEndPoint ipep = new IPEndPoint(
IPAddress.Parse("127.0.0.1"), 9050);
Socket server = new Socket(AddressFamily.InterNetwork,
SocketType.Dgram, ProtocolType.Udp);
int sockopt = (int)server.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout);
Console.WriteLine("Default timeout: {0}", sockopt);
server.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
sockopt = (int)server.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout);
Console.WriteLine("New timeout: {0}", sockopt);
string welcome = "Hello, are you there?";
data = Encoding.ASCII.GetBytes(welcome);
server.SendTo(data, data.Length, SocketFlags.None, ipep);
IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
EndPoint tmpRemote = (EndPoint)sender;
data = new byte[1024];
recv = server.ReceiveFrom(data, ref tmpRemote);
Console.WriteLine("Message received from {0}:", tmpRemote.ToString());
Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));
while(true)
{
input = Console.ReadLine();
if (input == "exit")
break;
server.SendTo(Encoding.ASCII.GetBytes(input), tmpRemote);
data = new byte[1024];
recv = server.ReceiveFrom(data, ref tmpRemote);
stringData = Encoding.ASCII.GetString(data, 0, recv);
Console.WriteLine(stringData);
}
Console.WriteLine("Stopping client");
server.Close();
}
}

</source>

==Udp Client Multi Receive==

<source lang="csharp">
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class UdpClientMultiRecv
{
public static void Main()
{
UdpClient sock = new UdpClient(9050);
Console.WriteLine("Ready to receive...");
sock.JoinMulticastGroup(IPAddress.Parse("192.100.0.1"), 50);
IPEndPoint iep = new IPEndPoint(IPAddress.Any, 0);
byte[] data = sock.Receive(ref iep);
string stringData = Encoding.ASCII.GetString(data, 0, data.Length);
Console.WriteLine("received: {0} from: {1}", stringData, iep.ToString());
sock.Close();
}
}

</source>

==Udp Client Multi Send==

<source lang="csharp">
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class UdpClientMultiSend
{
public static void Main()
{
UdpClient sock = new UdpClient();
IPEndPoint iep = new IPEndPoint(IPAddress.Parse("192.100.0.1"), 9050);
byte[] data = Encoding.ASCII.GetBytes("This is a test message");
sock.Send(data, data.Length, iep);
sock.Close();
}
}

</source>

==Udp Client Sample==

<source lang="csharp">
/*
C# Network Programming
by Richard Blum
Publisher: Sybex
ISBN: 0782141765
*/
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class UdpClientSample
{
public static void Main()
{
byte[] data = new byte[1024];
string input, stringData;
UdpClient server = new UdpClient("127.0.0.1", 9050);
IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
string welcome = "Hello, are you there?";
data = Encoding.ASCII.GetBytes(welcome);
server.Send(data, data.Length);
data = server.Receive(ref sender);
Console.WriteLine("Message received from {0}:", sender.ToString());
stringData = Encoding.ASCII.GetString(data, 0, data.Length);
Console.WriteLine(stringData);
while(true)
{
input = Console.ReadLine();
if (input == "exit")
break;

server.Send(Encoding.ASCII.GetBytes(input), input.Length);
data = server.Receive(ref sender);
stringData = Encoding.ASCII.GetString(data, 0, data.Length);
Console.WriteLine(stringData);
}
Console.WriteLine("Stopping client");
server.Close();
}
}

</source>

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Csharp/C Sharp/Network/Udp Client - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия