sshbuf_get
if ((r = sshbuf_get(input, &s4_req.version, 1)) != 0 ||
(r = sshbuf_get(input, &s4_req.command, 1)) != 0 ||
(r = sshbuf_get(input, &s4_req.dest_port, 2)) != 0 ||
(r = sshbuf_get(input, &s4_req.dest_addr, 4)) != 0) {
if ((r = sshbuf_get(input, &dest_addr, addrlen)) != 0 ||
(r = sshbuf_get(input, &dest_port, 2)) != 0) {
return sshbuf_get(ssh->state->incoming_packet, valp, len);
ASSERT_INT_EQ(sshbuf_get(p1, d2, 4), 0);
r = sshbuf_get(p1, d2, 4);
(r = sshbuf_get(buf, p, len)) != 0)
int sshbuf_get(struct sshbuf *buf, void *v, size_t len);