SSHBUF_SIZE_INIT
if (buf->alloc != SSHBUF_SIZE_INIT) {
if ((d = recallocarray(buf->d, buf->alloc, SSHBUF_SIZE_INIT,
buf->alloc = SSHBUF_SIZE_INIT;
if (buf->size < SSHBUF_SIZE_INIT)
rlen = SSHBUF_SIZE_INIT;
ret->alloc = SSHBUF_SIZE_INIT;