1/*	$OpenBSD: convert.c,v 1.5 2004/02/07 11:35:59 henning Exp $	*/
2
3/*
4 * Safe copying of option values into and out of the option buffer,
5 * which can't be assumed to be aligned.
6 */
7
8/*
9 * Copyright (c) 1995, 1996 The Internet Software Consortium.
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 *
16 * 1. Redistributions of source code must retain the above copyright
17 *    notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 *    notice, this list of conditions and the following disclaimer in the
20 *    documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of The Internet Software Consortium nor the names
22 *    of its contributors may be used to endorse or promote products derived
23 *    from this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
26 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
27 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
28 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
29 * DISCLAIMED.  IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
30 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
33 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
34 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
35 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
36 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 *
39 * This software has been written for the Internet Software Consortium
40 * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
41 * Enterprises.  To learn more about the Internet Software Consortium,
42 * see ``http://www.vix.com/isc''.  To learn more about Vixie
43 * Enterprises, see ``http://www.vix.com''.
44 */
45
46#include <sys/cdefs.h>
47__FBSDID("$FreeBSD$");
48
49#include "dhcpd.h"
50
51u_int32_t
52getULong(unsigned char *buf)
53{
54	u_int32_t ibuf;
55
56	memcpy(&ibuf, buf, sizeof(ibuf));
57	return (ntohl(ibuf));
58}
59
60int32_t
61getLong(unsigned char *(buf))
62{
63	int32_t ibuf;
64
65	memcpy(&ibuf, buf, sizeof(ibuf));
66	return (ntohl(ibuf));
67}
68
69u_int16_t
70getUShort(unsigned char *buf)
71{
72	u_int16_t ibuf;
73
74	memcpy(&ibuf, buf, sizeof(ibuf));
75	return (ntohs(ibuf));
76}
77
78int16_t
79getShort(unsigned char *buf)
80{
81	int16_t ibuf;
82
83	memcpy(&ibuf, buf, sizeof(ibuf));
84	return (ntohs(ibuf));
85}
86
87void
88putULong(unsigned char *obuf, u_int32_t val)
89{
90	u_int32_t tmp = htonl(val);
91
92	memcpy(obuf, &tmp, sizeof(tmp));
93}
94
95void
96putLong(unsigned char *obuf, int32_t val)
97{
98	int32_t tmp = htonl(val);
99
100	memcpy(obuf, &tmp, sizeof(tmp));
101}
102
103void
104putUShort(unsigned char *obuf, unsigned int val)
105{
106	u_int16_t tmp = htons(val);
107
108	memcpy(obuf, &tmp, sizeof(tmp));
109}
110
111void
112putShort(unsigned char *obuf, int val)
113{
114	int16_t tmp = htons(val);
115
116	memcpy(obuf, &tmp, sizeof(tmp));
117}
118