Sample code for 30+ languages & platforms
C#

Receive Text up to a Match into a StringBuilder

See more Socket/SSL/TLS Examples

Demonstrates Socket.ReceiveUntilMatchSb, which receives bytes until an exact byte sequence is found and appends the received text to a StringBuilder.

Background. The match string is encoded using StringCharset and compared byte-for-byte. The match may span multiple underlying network reads.

Chilkat C# Downloads

C#
bool success = false;

Chilkat.Socket socket = new Chilkat.Socket();

//  Connect to the server using TLS.  The 3rd argument enables the TLS handshake after the TCP
//  connection succeeds; the 4th is the maximum time to wait, in milliseconds.
bool bTls = true;
int maxWaitMs = 5000;
success = socket.Connect("example.com",5000,bTls,maxWaitMs);
if (success == false) {
    Debug.WriteLine(socket.LastErrorText);
    return;
}

//  StringCharset controls the character encoding used when sending and receiving text.
socket.StringCharset = "utf-8";
//  Send a request using a simple application-defined text protocol in which each message ends with a
//  CRLF.
string command = "STATUS\r\n";
success = socket.SendString(command);
if (success == false) {
    Debug.WriteLine(socket.LastErrorText);
    return;
}

//  Receive bytes until an exact byte sequence is found, appending the received text to a
//  StringBuilder.  The match may span multiple underlying network reads.
Chilkat.StringBuilder sb = new Chilkat.StringBuilder();
success = socket.ReceiveUntilMatchSb("<EOM>",sb);
if (success == false) {
    Debug.WriteLine(socket.LastErrorText);
    return;
}

string response = sb.GetAsString();
if (sb.LastMethodSuccess == false) {
    Debug.WriteLine(sb.LastErrorText);
    return;
}

Debug.WriteLine(response);