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.

#import <CkoSocket.h>
#import <NSString.h>
#import <CkoStringBuilder.h>

BOOL success = NO;

CkoSocket *socket = [[CkoSocket alloc] init];

//  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 = YES;
int maxWaitMs = 5000;
success = [socket Connect: @"example.com" port: [NSNumber numberWithInt: 5000] ssl: bTls maxWaitMs: [NSNumber numberWithInt: maxWaitMs]];
if (success == NO) {
    NSLog(@"%@",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.
NSString *command = @"STATUS\r\n";
success = [socket SendString: command];
if (success == NO) {
    NSLog(@"%@",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.
CkoStringBuilder *sb = [[CkoStringBuilder alloc] init];
success = [socket ReceiveUntilMatchSb: @"<EOM>" sb: sb];
if (success == NO) {
    NSLog(@"%@",socket.LastErrorText);
    return;
}

NSString *response = [sb GetAsString];
if (sb.LastMethodSuccess == NO) {
    NSLog(@"%@",sb.LastErrorText);
    return;
}

NSLog(@"%@",response);