1 /* $NetBSD: bootinfo.c,v 1.1 2009/03/02 09:33:02 nonaka Exp $ */
2
3 /*
4 * Copyright (c) 1997
5 * Matthias Drochner. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 */
28
29 #include "boot.h"
30 #include "bootinfo.h"
31
32 struct btinfo *bootinfo;
33
34 static int
bi_find(int type)35 bi_find(int type)
36 {
37 struct btinfo_common *btinfo;
38 int i;
39
40 for (i = 0; i < bootinfo->nentries; i++) {
41 btinfo = (struct btinfo_common *)(bootinfo->entry[i]);
42 if (btinfo->type == type) {
43 return i;
44 }
45 }
46 return -1;
47 }
48
49 void
bi_add(struct btinfo_common * what,int type,int size)50 bi_add(struct btinfo_common *what, int type, int size)
51 {
52 int idx;
53
54 what->len = size;
55 what->type = type;
56
57 if (bootinfo) {
58 idx = bi_find(type);
59 if (idx < 0) {
60 idx = bootinfo->nentries++;
61 }
62 bootinfo->entry[idx] = (u_long)what;
63 }
64 }
65
66 void
bi_del(int type)67 bi_del(int type)
68 {
69 int idx;
70 int i;
71
72 if (bootinfo) {
73 idx = bi_find(type);
74 if (idx >= 0) {
75 for (i = idx + 1; i < bootinfo->nentries; i++) {
76 bootinfo->entry[i - 1] = bootinfo->entry[i];
77 }
78 bootinfo->entry[--bootinfo->nentries] = 0L;
79 }
80 }
81 }
82