sshbuf_put_ec
if ((r = sshbuf_put_ec(server_blob, pub_key, group)) != 0 ||
if ((r = sshbuf_put_ec(buf, public_key, group)) != 0 ||
return sshbuf_put_ec(ssh->state->outgoing_packet, v, g);
return sshbuf_put_ec(buf, EC_KEY_get0_public_key(v),
int sshbuf_put_ec(struct sshbuf *buf, const EC_POINT *v, const EC_GROUP *g);