1 /* $OpenBSD: convert.c,v 1.5 2004/02/07 11:35:59 henning Exp $ */
4 * Safe copying of option values into and out of the option buffer,
5 * which can't be assumed to be aligned.
9 * SPDX-License-Identifier: BSD-3-Clause
11 * Copyright (c) 1995, 1996 The Internet Software Consortium.
12 * All rights reserved.
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
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.
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
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''.
48 #include <sys/cdefs.h>
49 __FBSDID("$FreeBSD$");
54 getULong(unsigned char *buf)
58 memcpy(&ibuf, buf, sizeof(ibuf));
63 getLong(unsigned char *(buf))
67 memcpy(&ibuf, buf, sizeof(ibuf));
72 getUShort(unsigned char *buf)
76 memcpy(&ibuf, buf, sizeof(ibuf));
81 getShort(unsigned char *buf)
85 memcpy(&ibuf, buf, sizeof(ibuf));
90 putULong(unsigned char *obuf, u_int32_t val)
92 u_int32_t tmp = htonl(val);
94 memcpy(obuf, &tmp, sizeof(tmp));
98 putLong(unsigned char *obuf, int32_t val)
100 int32_t tmp = htonl(val);
102 memcpy(obuf, &tmp, sizeof(tmp));
106 putUShort(unsigned char *obuf, unsigned int val)
108 u_int16_t tmp = htons(val);
110 memcpy(obuf, &tmp, sizeof(tmp));
114 putShort(unsigned char *obuf, int val)
116 int16_t tmp = htons(val);
118 memcpy(obuf, &tmp, sizeof(tmp));