sshpkt_put_stringb
(r = sshpkt_put_stringb(ssh, c->input)) != 0 ||
(r = sshpkt_put_stringb(ssh, buf)) != 0)
if ((r = sshpkt_put_stringb(ssh, cmd)) != 0 ||
(r = sshpkt_put_stringb(ssh, kex->client_pub)) != 0 ||
(r = sshpkt_put_stringb(ssh, server_host_key_blob)) != 0 ||
(r = sshpkt_put_stringb(ssh, server_pubkey)) != 0 ||
(r = sshpkt_put_stringb(ssh, server_host_key_blob)) != 0 ||
int sshpkt_put_stringb(struct ssh *ssh, const struct sshbuf *v);
if ((r = sshpkt_put_stringb(ssh, buf)) != 0)
(r = sshpkt_put_stringb(ssh, buf)) != 0)