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1.1 nbrk 1: /* $OpenBSD: bootconfig.c,v 1.1 2004/02/01 05:09:48 drahn Exp $ */
2: /* $NetBSD: bootconfig.c,v 1.2 2002/03/10 19:56:39 lukem Exp $ */
3:
4: /*
5: * Copyright (c) 1994-1998 Mark Brinicombe.
6: * Copyright (c) 1994 Brini.
7: * All rights reserved.
8: *
9: * This code is derived from software written for Brini by Mark Brinicombe
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by Mark Brinicombe
22: * for the NetBSD Project.
23: * 4. The name of the company nor the name of the author may be used to
24: * endorse or promote products derived from this software without specific
25: * prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
28: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
29: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
30: * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
31: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
32: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
33: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37: * SUCH DAMAGE.
38: */
39:
40: #include <sys/param.h>
41:
42: #include <sys/systm.h>
43:
44: #include <machine/bootconfig.h>
45:
46: #include "rd.h"
47:
48: /*
49: * Function to identify and process different types of boot argument
50: */
51:
52: int
53: get_bootconf_option(opts, opt, type, result)
54: char *opts;
55: char *opt;
56: int type;
57: void *result;
58: {
59: char *ptr;
60: char *optstart;
61: int not;
62:
63: ptr = opts;
64:
65: while (*ptr) {
66: /* Find start of option */
67: while (*ptr == ' ' || *ptr == '\t')
68: ++ptr;
69:
70: if (*ptr == 0)
71: break;
72:
73: not = 0;
74:
75: /* Is it a negate option */
76: if ((type & BOOTOPT_TYPE_MASK) == BOOTOPT_TYPE_BOOLEAN && *ptr == '!') {
77: not = 1;
78: ++ptr;
79: }
80:
81: /* Find the end of option */
82: optstart = ptr;
83: while (*ptr != 0 && *ptr != ' ' && *ptr != '\t' && *ptr != '=')
84: ++ptr;
85:
86: if ((*ptr == '=')
87: || (*ptr != '=' && ((type & BOOTOPT_TYPE_MASK) == BOOTOPT_TYPE_BOOLEAN))) {
88: /* compare the option */
89: if (strncmp(optstart, opt, (ptr - optstart)) == 0) {
90: /* found */
91:
92: if (*ptr == '=')
93: ++ptr;
94:
95: #if 0
96: /* BELCH */
97: switch(type & BOOTOPT_TYPE_MASK) {
98: case BOOTOPT_TYPE_BOOLEAN :
99: if (*(ptr - 1) == '=')
100: *((int *)result) = ((u_int)strtoul(ptr, NULL, 10) != 0);
101: else
102: *((int *)result) = !not;
103: break;
104: case BOOTOPT_TYPE_STRING :
105: *((char **)result) = ptr;
106: break;
107: case BOOTOPT_TYPE_INT :
108: *((int *)result) = (u_int)strtoul(ptr, NULL, 10);
109: break;
110: case BOOTOPT_TYPE_BININT :
111: *((int *)result) = (u_int)strtoul(ptr, NULL, 2);
112: break;
113: case BOOTOPT_TYPE_HEXINT :
114: *((int *)result) = (u_int)strtoul(ptr, NULL, 16);
115: break;
116: default:
117: return(0);
118: }
119: #endif
120: return(1);
121: }
122: }
123: /* skip to next option */
124: while (*ptr != ' ' && *ptr != '\t' && *ptr != 0)
125: ++ptr;
126: }
127: return(0);
128: }