login to vbulletin using curl

[tmirek]

I tried to login curl using this code

PHP Code:

$urlroot = 'http://robert.deveon/forum/login.php';
        $vbulletin1 = array(
            'vb_login_username' => 'mirek2',
            'vb_login_password'=> '123qwe',
            's' => '',
            'securitytoken' => 'guest',
            'do'=> 'login',
            'cookieuser' => '1',
            'vb_login_md5password' => md5('123qwe'),
            'vb_login_md5password_utf' => md5('123qwe')
        );

$this->do_vbulletin_login($urlroot, $vbulletin1); 


where

PHP Code:

function do_vbulletin_login($url, $post) {
        $curl=curl_init();
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12');
        curl_setopt($curl, CURLOPT_COOKIEFILE, dirname(__FILE__) . '/cookies.txt');
        curl_setopt($curl, CURLOPT_COOKIEJAR, dirname(__FILE__) . '/cookies.txt');
        curl_setopt($curl, CURLOPT_TIMEOUT, 30);
        curl_setopt($curl, CURLOPT_HEADER, 0);
        //if(strlen($post)>0){
            curl_setopt($curl, CURLOPT_POST, 1);
            curl_setopt($curl, CURLOPT_POSTFIELDS, $post);
        //}
        
        $strona=curl_exec($curl);
        echo $strona;
        curl_close($curl);
        die();
    } 


mirek2 is a login and 123qwe a password. I get a message "wrong login and/or password".
What do I do wrong?

--------------- Added [DATE]1290511593[/DATE] at [TIME]1290511593[/TIME] ---------------

and this is a standard form

PHP Code:

<form action="login.php?do=login" method="post" onsubmit="md5hash(vb_login_password, vb_login_md5password, vb_login_md5password_utf, 0)">
            <input type="hidden" name="do" value="login" />
            <input type="hidden" name="url" value="/forum/newreply.php?do=newreply&amp;noquote=1&amp;p=3" />

            <input type="hidden" name="vb_login_md5password" />
            <input type="hidden" name="vb_login_md5password_utf" />
            

            <input type="hidden" name="s" value="" />
            <input type="hidden" name="securitytoken" value="guest" />

            <!-- permission error message - user not logged in -->


            <div class="smallfont">Nie jeste&#347; zalogowany lub nie masz dostępu do tej strony. Prawdopodobne powody to:</div>

            <ol>
                <li class="smallfont">Nie jeste&#347; zalogowany.</li>
                <li class="smallfont">Nie masz wystarczaj&#261;cych uprawnień aby otworzyć stronę.</li>

                <li class="smallfont">Twoje konto czeka na aktywacj&#281; lub zostało wyłączone przez administratora forum.</li>
            </ol>

            <fieldset class="fieldset">
                <legend>Zaloguj si&#281;</legend>
                <table cellpadding="0" cellspacing="3" border="0" align="center">

                <tr>
                    <td>Nazwa u&#380;ytkownika:<br /><input type="text" class="bginput" name="vb_login_username" size="50" accesskey="u" tabindex="1" /></td>
                </tr>
                <tr>
                    <td>Has&#322;o:<br /><input type="password" class="bginput" name="vb_login_password" size="50" tabindex="1" /></td>
                </tr>
                <tr>

                    <td>
                        <span style="float:right"><a href="login.php?do=lostpw">Zapomnia&#322;eś hasła?</a></span>
                        <label for="cb_cookieuser"><input type="checkbox" name="cookieuser" value="1" id="cb_cookieuser" tabindex="1" />Zapami&#281;taj mnie</label>
                    </td>
                </tr>

                <tr>
                    <td align="right">
                        <input type="submit" class="button" value="Zaloguj się" accesskey="s" tabindex="1" />
                        <input type="reset" class="button" value="Wyczyść" accesskey="r" tabindex="1" />
                    </td>
                </tr>
                </table>
            </fieldset>

            <div class="smallfont">Aby przegl&#261;dać to forum musisz się najpierw <a href="register.php?do=signup">ZAREJESTROWAĆ</a>.</div>
            </form>