<?php
/*
 * A sendmail for the tests: PHP's mail() runs it through sendmail_path.
 * It appends the message to the file in MAIL_LOG, one JSON line each.
 */
$message = stream_get_contents(STDIN);
file_put_contents(getenv('MAIL_LOG'), json_encode(array('args' => array_slice($argv, 1), 'message' => $message),
                                                  JSON_INVALID_UTF8_SUBSTITUTE) . "\n", FILE_APPEND | LOCK_EX);