xref: /openbsd/sys/dev/microcode/tht/build.c (revision 898184e3)
1 /*	$OpenBSD: build.c,v 1.2 2007/04/19 04:08:51 dlg Exp $ */
2 
3 /*
4  * Copyright (c) 2007 David Gwynne <dlg@openbsd.org>
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 #include <sys/types.h>
20 
21 #include <err.h>
22 #include <fcntl.h>
23 #include <stdio.h>
24 #include <unistd.h>
25 
26 #include "microcode.h"
27 
28 #define THT_FW_NAME "tht"
29 
30 int
31 main(int argc, char *argv[])
32 {
33 	ssize_t		len;
34 	int		fd;
35 	int		i;
36 
37 	fd = open(THT_FW_NAME, O_WRONLY | O_CREAT | O_TRUNC, 0644);
38 	if (fd == -1)
39 		err(1, "%s", THT_FW_NAME);
40 
41 	for (i = 0; i < (sizeof(tht_fw) / sizeof(tht_fw[0])); i++)
42 		tht_fw[i] = htole32(tht_fw[i]);
43 
44 	len = write(fd, tht_fw, sizeof(tht_fw));
45 	if (len == -1)
46 		err(1, "%s write", THT_FW_NAME);
47 	if (len != sizeof(tht_fw))
48 		errx(1, "%s: short write", THT_FW_NAME);
49 
50 	close(fd);
51 
52 	return (0);
53 }
54