Functions
<function>check_to()</function> Check To username against URI table or digest credentials. <function>check_to</function> usage ... if (check_to()) { ... }; ...
<function>check_from()</function> Check From username against URI table or digest credentials. <function>check_from</function> usage ... if (check_from()) { ... }; ...
<function>does_uri_exist()</function> Check if username in the request URI belongs to an existing user. <function>does_uri_exist</function> usage ... if (does_uri_exist()) { ... }; ...