Get the password value.
If length is not null then it will be filled in with the length of the
password value. (Note that the password value is not nul-terminated, so you can only pass null
for length in contexts where you know the password will have a certain fixed length.)
| this |
a TlsPassword object |
| length |
location to place the length of the password. |
|
The password value (owned by the password object). |