UATH_CMD_FLAG_MAGIC
&which, sizeof (which), odata, olen, UATH_CMD_FLAG_MAGIC);
hdr->magic = BE_32((cmd->flags & UATH_CMD_FLAG_MAGIC) ? 1 << 24 : 0);
&val, sizeof (val), UATH_CMD_FLAG_MAGIC);
sizeof (cap), val, sizeof (uint32_t), UATH_CMD_FLAG_MAGIC);