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 * SPDX-License-Identifier: BSD-3-Clause
10 *
11 * Copyright (c) 1995, 1996 The Internet Software Consortium.
12 * All rights reserved.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 *
18 * 1. Redistributions of source code must retain the above copyright
19 *    notice, this list of conditions and the following disclaimer.
20 * 2. Redistributions in binary form must reproduce the above copyright
21 *    notice, this list of conditions and the following disclaimer in the
22 *    documentation and/or other materials provided with the distribution.
23 * 3. Neither the name of The Internet Software Consortium nor the names
24 *    of its contributors may be used to endorse or promote products derived
25 *    from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
28 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
29 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
30 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
31 * DISCLAIMED.  IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
32 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
35 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
36 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
37 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
38 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 * SUCH DAMAGE.
40 *
41 * This software has been written for the Internet Software Consortium
42 * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
43 * Enterprises.  To learn more about the Internet Software Consortium,
44 * see ``http://www.vix.com/isc''.  To learn more about Vixie
45 * Enterprises, see ``http://www.vix.com''.
46 */
47
48#include <sys/cdefs.h>
49__FBSDID("$FreeBSD$");
50
51#include "dhcpd.h"
52
53u_int32_t
54getULong(unsigned char *buf)
55{
56	u_int32_t ibuf;
57
58	memcpy(&ibuf, buf, sizeof(ibuf));
59	return (ntohl(ibuf));
60}
61
62int32_t
63getLong(unsigned char *(buf))
64{
65	int32_t ibuf;
66
67	memcpy(&ibuf, buf, sizeof(ibuf));
68	return (ntohl(ibuf));
69}
70
71u_int16_t
72getUShort(unsigned char *buf)
73{
74	u_int16_t ibuf;
75
76	memcpy(&ibuf, buf, sizeof(ibuf));
77	return (ntohs(ibuf));
78}
79
80int16_t
81getShort(unsigned char *buf)
82{
83	int16_t ibuf;
84
85	memcpy(&ibuf, buf, sizeof(ibuf));
86	return (ntohs(ibuf));
87}
88
89void
90putULong(unsigned char *obuf, u_int32_t val)
91{
92	u_int32_t tmp = htonl(val);
93
94	memcpy(obuf, &tmp, sizeof(tmp));
95}
96
97void
98putLong(unsigned char *obuf, int32_t val)
99{
100	int32_t tmp = htonl(val);
101
102	memcpy(obuf, &tmp, sizeof(tmp));
103}
104
105void
106putUShort(unsigned char *obuf, unsigned int val)
107{
108	u_int16_t tmp = htons(val);
109
110	memcpy(obuf, &tmp, sizeof(tmp));
111}
112
113void
114putShort(unsigned char *obuf, int val)
115{
116	int16_t tmp = htons(val);
117
118	memcpy(obuf, &tmp, sizeof(tmp));
119}
120