Perl

Connect a TCP or TLS Socket

Demonstrates Socket.Connect, which establishes a TCP connection to a host and port. Setting the TLS argument to _TRUE_ performs a TLS handshake after the TCP connection succeeds.

Background. The hostname may be a DNS name or a numeric IPv4/IPv6 address. The final argument bounds how long the connect attempt waits before failing. On failure, ConnectFailReason and LastErrorText provide detail.

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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');

# The socket is now connected and ready to send and receive data using whatever protocol the
# application implements.
print 'Connected: ', ($socket->IsConnected ? 1 : 0), "\n";

# Close the connection when finished.  The argument is the maximum time to wait for a clean
# shutdown, in milliseconds.
$success = $socket->Close(1000);
if (!$success) {
    print $socket->LastErrorText, "\n";
    exit;
}