Description of problem:
- vinagre does not accept extra long passwords. 

Version-Release number of selected component (if applicable):
- all versions

How reproducible:
- 100%

Steps to Reproduce:
1. Run Vinagre
2. attempt to establish an RDP connection using a password greater than 20 characters
3.

Actual results:
- cannot use passwords greater than 20 characters

Expected results:
- valid passwords are accepted regardless of length

Additional info:


From source:
static gboolean
frdp_authenticate (freerdp  *instance,
                   char    **username,
                   char    **password,
                   char    **domain)
{
  VinagreTab           *tab = VINAGRE_TAB (((frdpContext *) instance->context)->rdp_tab);
  VinagreRdpTab        *rdp_tab = VINAGRE_RDP_TAB (tab);
  VinagreRdpTabPrivate *priv = rdp_tab->priv;
  VinagreConnection    *conn = vinagre_tab_get_conn (tab);
  GtkWindow            *window = GTK_WINDOW (vinagre_tab_get_window (tab));
  gboolean              save_in_keyring = FALSE;
  gchar                *keyring_domain = NULL;
  gchar                *keyring_username = NULL;
  gchar                *keyring_password = NULL;

....

 if (vinagre_utils_request_credential (window,
                                        "RDP",
                                        vinagre_connection_get_host (conn),
                                        vinagre_connection_get_domain (conn),
                                        vinagre_connection_get_username (conn),
                                        TRUE,
                                        TRUE,
                                        TRUE,
                                   ===>      20, 0 // hardcoded to 20 chars
                                        domain,
                                        username,
                                        password,
                                        &save_in_keyring))

----------------

invoking freerdp directly does not exhibit the password length limitation, so this is merely an arbitrary hardcoded limit of 20 characters, and I am not aware of any password limit on RDP outside of the MS Windows maximums, which for Windows 10 are as follows:

Windows represents passwords in 256-character UNICODE strings. The logon dialog is limited to 127 characters, however.
Source:
http://www.thewindowsclub.com/maximum-length-of-password-windows-10