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Perl

Receive Text up to a Delimiter Byte

See more Socket/SSL/TLS Examples

Demonstrates Socket.ReceiveStringUntilByte, which receives bytes until a specific raw byte value is found, then decodes the preceding bytes using StringCharset. The delimiter is excluded from the returned string.

Background. The delimiter search is purely byte-oriented and does not recognize character boundaries. A common delimiter is the linefeed byte (decimal 10).

Chilkat Perl Downloads

Perl
use chilkat();

$success = 0;

$socket = chilkat::CkSocket->new();

#  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.
$bTls = 1;
$maxWaitMs = 5000;
$success = $socket->Connect("example.com",5000,$bTls,$maxWaitMs);
if ($success == 0) {
    print $socket->lastErrorText() . "\r\n";
    exit;
}

#  StringCharset controls the character encoding used when sending and receiving text.
$socket->put_StringCharset("utf-8");
#  Send a request using a simple application-defined text protocol in which each message ends with a
#  CRLF.
$command = "STATUS\r\n";
$success = $socket->SendString($command);
if ($success == 0) {
    print $socket->lastErrorText() . "\r\n";
    exit;
}

#  Receive bytes until a specific raw byte value is found, then decode the preceding bytes using
#  StringCharset.  The delimiter itself is excluded from the returned string.  Here the delimiter is
#  the linefeed byte (decimal 10).
$line = $socket->receiveStringUntilByte(10);
if ($socket->get_LastMethodSuccess() == 0) {
    print $socket->lastErrorText() . "\r\n";
    exit;
}

print $line . "\r\n";