<?php

/**
 * chpasswd Driver
 *
 * Driver that adds functionality to change the systems user password via
 * the 'chpasswd' command.
 *
 * For installation instructions please read the README file.
 *
 * @version 1.0
 * @author Alex Cartwright <acartwright@mutinydesign.co.uk)
 */

function password_save($currpass, $newpass)
{
    $cmd = rcmail::get_instance()->config->get('password_chpasswd_cmd');
    $username = $_SESSION['username'];

    $handle = popen($cmd, "w");
    fwrite($handle, "$username:$newpass\n");

    if (pclose($handle) == 0) {
        return PASSWORD_SUCCESS;
    }
    else {
        raise_error(array(
            'code' => 600,
            'type' => 'php',
            'file' => __FILE__, 'line' => __LINE__,
            'message' => "Password plugin: Unable to execute $cmd"
            ), true, false);
    }

    return PASSWORD_ERROR;
}
