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 "dhcpd.h"
47
48 u_int32_t
getULong(unsigned char * buf)49 getULong(unsigned char *buf)
50 {
51 u_int32_t ibuf;
52
53 memcpy(&ibuf, buf, sizeof(ibuf));
54 return (ntohl(ibuf));
55 }
56
57 int32_t
getLong(unsigned char * (buf))58 getLong(unsigned char *(buf))
59 {
60 int32_t ibuf;
61
62 memcpy(&ibuf, buf, sizeof(ibuf));
63 return (ntohl(ibuf));
64 }
65
66 u_int16_t
getUShort(unsigned char * buf)67 getUShort(unsigned char *buf)
68 {
69 u_int16_t ibuf;
70
71 memcpy(&ibuf, buf, sizeof(ibuf));
72 return (ntohs(ibuf));
73 }
74
75 int16_t
getShort(unsigned char * buf)76 getShort(unsigned char *buf)
77 {
78 int16_t ibuf;
79
80 memcpy(&ibuf, buf, sizeof(ibuf));
81 return (ntohs(ibuf));
82 }
83
84 void
putULong(unsigned char * obuf,u_int32_t val)85 putULong(unsigned char *obuf, u_int32_t val)
86 {
87 u_int32_t tmp = htonl(val);
88
89 memcpy(obuf, &tmp, sizeof(tmp));
90 }
91
92 void
putLong(unsigned char * obuf,int32_t val)93 putLong(unsigned char *obuf, int32_t val)
94 {
95 int32_t tmp = htonl(val);
96
97 memcpy(obuf, &tmp, sizeof(tmp));
98 }
99
100 void
putUShort(unsigned char * obuf,unsigned int val)101 putUShort(unsigned char *obuf, unsigned int val)
102 {
103 u_int16_t tmp = htons(val);
104
105 memcpy(obuf, &tmp, sizeof(tmp));
106 }
107
108 void
putShort(unsigned char * obuf,int val)109 putShort(unsigned char *obuf, int val)
110 {
111 int16_t tmp = htons(val);
112
113 memcpy(obuf, &tmp, sizeof(tmp));
114 }
115