int libssh2_userauth_password_ex(LIBSSH2_SESSION *session, const char *username, unsigned int username_len, const char *password, unsigned int password_len, LIBSSH2_PASSWD_CHANGEREQ_FUNC((*passwd_change_cb)));
int libssh2_userauth_password(LIBSSH2_SESSION *session, const char *username, const char *password);
username - Name of user to attempt plain password authentication for.
username_len - Length of username parameter.
password - Password to use for authenticating username.
password_len - Length of password parameter.
passwd_change_cb - If the host accepts authentication but requests that the password be changed, this callback will be issued. If no callback is defined, but server required password change, authentication will fail.
Attempt basic password authentication. Note that many SSH servers which appear to support ordinary password authentication actually have it disabled and use Keyboard Interactive authentication (routed via PAM or another authentication backed) instead.
LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket.