extern ssh_gssapi_mech *supported_mechs[];
-char *ssh_gssapi_mechanisms(char *host);
char *ssh_gssapi_client_mechanisms(char *host);
gss_OID ssh_gssapi_client_id_kex(Gssctxt *ctx, char *name);
int ssh_gssapi_check_oid(Gssctxt *ctx, void *data, size_t len);