const char *username,
unsigned int username_len,
session - Session instance as returned by
username - Name of user to attempt keyboard-interactive authentication
username_len - Length of username parameter.
response_callback - As authentication proceeds, the host issues several
(1 or more) challenges and requires responses. This callback will be called at
this moment. The callback is responsible to obtain responses for the
challenges, fill the provided data structure and then return
control. Responses will be sent to the host. String values will be free(3)ed
by the library. The callback prototype must match this:
void response(const char *name,
int name_len, const char *instruction,
const LIBSSH2_USERAUTH_KBDINT_PROMPT *prompts,
Attempts keyboard-interactive (challenge/response) authentication.
Note that many SSH servers will always issue a single "password" challenge,
requesting actual password as response, but it is not required by the
protocol, and various authentication schemes, such as smartcard authentication
may use keyboard-interactive authentication type too.