csu3_am335x/EVSE/GPL/php-8.1.12/ext/standard/tests/network/tcp6loop.phpt

--TEST--
Streams Based IPv6 TCP Loopback test
--SKIPIF--
<?php
    /* If IPv6 is supported on the platform this will error out with code 111 - Connection refused (or code 10049 on Windows).
       If IPv6 is NOT supported, $errno will be set to something else (indicating parse/getaddrinfo error)
       Note: Might be a good idea to export an IPv6 support indicator (such as AF_INET6 exported by ext/sockets) */
    @stream_socket_client('tcp://[::1]:0', $errno);
    if ((PHP_OS_FAMILY === 'Windows' && $errno !== 10049) || (PHP_OS_FAMILY !== 'Windows' && $errno !== 111)) {
        die('skip IPv6 is not supported.');
    }
?>
--FILE--
<?php

  for ($i=0; $i<100; $i++) {
    $port = rand(10000, 65000);
    /* Setup socket server */
    $server = @stream_socket_server("tcp://[::1]:$port");
    if ($server) {
      break;
    }
  }

    if (!$server) {
        die('Unable to create AF_INET6 socket [server]');
    }

    /* Connect to it */
    $client = stream_socket_client("tcp://[::1]:$port");
    if (!$client) {
        die('Unable to create AF_INET6 socket [client]');
    }

    /* Accept that connection */
    $socket = stream_socket_accept($server);
    if (!$socket) {
        die('Unable to accept connection');
    }

    fwrite($client, "ABCdef123\n");

    $data = fread($socket, 10);
    var_dump($data);

    fclose($client);
    fclose($socket);
    fclose($server);
?>
--EXPECT--
string(10) "ABCdef123
"