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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

Chilkat2 Perl
use strict;
use warnings;
use Chilkat2;

my $socket = Chilkat2::Socket->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.
my $bTls = 1;
my $maxWaitMs = 5000;
my $success = $socket->Connect('example.com', 5000, $bTls, $maxWaitMs);
if (!$success) {
    print $socket->LastErrorText, "\n";
    exit;
}

# 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.
my $command = "STATUS\r\n";
$success = $socket->SendString($command);
if (!$success) {
    print $socket->LastErrorText, "\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).
my $line = $socket->ReceiveStringUntilByte(10);
if (!$socket->LastMethodSuccess) {
    print $socket->LastErrorText, "\n";
    exit;
}

print $line, "\n";