def protocols
{
:http => 0x00000001,
:https => 0x00000002,
:ftp => 0x00000004,
:ftps => 0x00000008,
:scp => 0x00000010,
:sftp => 0x00000020,
:telnet => 0x00000040,
:ldap => 0x00000080,
:ldaps => 0x00000100,
:dict => 0x00001200,
:file => 0x00001400,
:tftp => 0x00001800,
:imap => 0x00011000,
:imaps => 0x00012000,
:pop3 => 0x00014000,
:pop3s => 0x00018000,
:smtp => 0x00110000,
:smtps => 0x00120000,
:rtsp => 0x00140000,
:rtmp => 0x00180000,
:rtmpt => 0x02100000,
:rtmpe => 0x02200000,
:rtmpte => 0x02400000,
:rtmps => 0x02800000,
:rtmpts => 0x21000000,
:gopher => 0x22000000,
}
end