kc2002$username = NULL;
You need to add the above line at line 426 before the semicolon.
else { //username exists but wrong password...
global $ext_error;
$ext_error = "wrongpw";
$username = NULL;
}
Otherwise you can login with an old password in WPMU after it has been changed externally.
Also I had to edit the ext_db_auth.php file and add default values because they blank out when new blogs are created. Here is my code (with default values added) that works with SMF (Simple Machines) 2.0 RC1-1 if anyone is interested.
add_option('ext_db_type',"MySQL","External database type");
add_option('ext_db_mdb2_path',"","Path to MDB2 (if non-standard)");
add_option('ext_host',"localhost","External database hostname");
add_option('ext_db_port',"","Database port (if non-standard)");
add_option('ext_db',"wpsmf","External database name");
add_option('ext_db_user',"root","External database username");
add_option('ext_db_pw',"","External database password");
add_option('ext_db_table',"smf_members","External database table for authentication");
add_option('ext_db_namefield',"member_name","External database field for username");
add_option('ext_db_pwfield',"passwd","External database field for password");
add_option('ext_db_first_name',"");
add_option('ext_db_last_name',"");
add_option('ext_db_user_url',"website_url");
add_option('ext_db_user_email',"email_address");
add_option('ext_db_description',"");
add_option('ext_db_aim',"aim");
add_option('ext_db_yim',"yim");
add_option('ext_db_jabber',"");
add_option('ext_db_enc',"Other","Type of encoding for external db (default SHA1? or MD5?)");
add_option('ext_db_error_msg','Register a new account here.',"Custom login message");
add_option('ext_db_other_enc','$password2 = sha1(strtolower($username) . $password);');
add_option('ext_db_role_bool','');
add_option('ext_db_role','');
add_option('ext_db_role_value','');
I also see where you disabled the change password in WP; however, there is no error message or warnings. It states that the changes were saved. It's not a biggee.
Your script has saved me a lot of time in developing a new site! Thank you.
Keith Tysinger
Hoodie