1 /* ----------------------------------------------------------------------- *
2 *
3 * Copyright 2007-2008 H. Peter Anvin - All Rights Reserved
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, Inc., 53 Temple Place Ste 330,
8 * Boston MA 02111-1307, USA; either version 2 of the License, or
9 * (at your option) any later version; incorporated herein by reference.
10 *
11 * ----------------------------------------------------------------------- */
12
13 /*
14 * advdump.c
15 *
16 * Dump the contents of the syslinux ADV
17 */
18
19 #include <stdio.h>
20 #include <console.h>
21 #include <syslinux/adv.h>
22 #include <string.h>
23
main(void)24 int main(void)
25 {
26 uint8_t *p, *ep;
27 size_t s = syslinux_adv_size();
28 char buf[256];
29
30 #if 0
31 /* this hangs! */
32 openconsole(&dev_stdcon_r, &dev_stdcon_w);
33 #else
34 /* this works */
35 openconsole(&dev_rawcon_r, &dev_ansiserial_w);
36 #endif
37
38 p = syslinux_adv_ptr();
39
40 printf("ADV size: %zd bytes at %p\n", s, p);
41
42 ep = p + s; /* Need at least opcode+len */
43 while (p < ep - 1 && *p) {
44 int t = *p++;
45 int l = *p++;
46
47 if (p + l > ep)
48 break;
49
50 memcpy(buf, p, l);
51 buf[l] = '\0';
52
53 printf("ADV %3d: \"%s\"\n", t, buf);
54
55 p += l;
56 }
57
58 return 0;
59 }
60