void g_tls_password_set_value ( GTlsPassword* password, const guchar* value, gssize length )
Set the value for this password. The
value will be copied by the password object.
length, for a non-nul-terminated password. Pass -1 as
length if using a nul-terminated password, and
length will be
calculated automatically. (Note that the terminating nul is not
considered part of the password in this case.)