void spa_build_auth_response (SPAAuthChallenge *challenge,
SPAAuthResponse *response, char *user, char *password);
void spa_build_auth_request (SPAAuthRequest *request, char *user,
void spa_build_auth_response (SPAAuthChallenge *challenge,
SPAAuthResponse *response, char *user, char *password);
void spa_build_auth_request (SPAAuthRequest *request, char *user,