1 /* $OpenBSD: convert.c,v 1.5 2004/02/07 11:35:59 henning Exp $ */
2 /* $DragonFly: src/sbin/dhclient/convert.c,v 1.1 2008/08/30 16:07:58 hasso Exp $ */
3
4 /*
5 * Safe copying of option values into and out of the option buffer,
6 * which can't be assumed to be aligned.
7 */
8
9 /*
10 * Copyright (c) 1995, 1996 The Internet Software Consortium.
11 * All rights reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 *
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
22 * 3. Neither the name of The Internet Software Consortium nor the names
23 * of its contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
27 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
28 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
29 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
30 * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
31 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
32 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
33 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
34 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
35 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
36 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
37 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 *
40 * This software has been written for the Internet Software Consortium
41 * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
42 * Enterprises. To learn more about the Internet Software Consortium,
43 * see ``http://www.vix.com/isc''. To learn more about Vixie
44 * Enterprises, see ``http://www.vix.com''.
45 */
46
47 #include "dhcpd.h"
48
49 u_int32_t
getULong(unsigned char * buf)50 getULong(unsigned char *buf)
51 {
52 u_int32_t ibuf;
53
54 memcpy(&ibuf, buf, sizeof(ibuf));
55 return (ntohl(ibuf));
56 }
57
58 int32_t
getLong(unsigned char * (buf))59 getLong(unsigned char *(buf))
60 {
61 int32_t ibuf;
62
63 memcpy(&ibuf, buf, sizeof(ibuf));
64 return (ntohl(ibuf));
65 }
66
67 u_int16_t
getUShort(unsigned char * buf)68 getUShort(unsigned char *buf)
69 {
70 u_int16_t ibuf;
71
72 memcpy(&ibuf, buf, sizeof(ibuf));
73 return (ntohs(ibuf));
74 }
75
76 int16_t
getShort(unsigned char * buf)77 getShort(unsigned char *buf)
78 {
79 int16_t ibuf;
80
81 memcpy(&ibuf, buf, sizeof(ibuf));
82 return (ntohs(ibuf));
83 }
84
85 void
putULong(unsigned char * obuf,u_int32_t val)86 putULong(unsigned char *obuf, u_int32_t val)
87 {
88 u_int32_t tmp = htonl(val);
89
90 memcpy(obuf, &tmp, sizeof(tmp));
91 }
92
93 void
putLong(unsigned char * obuf,int32_t val)94 putLong(unsigned char *obuf, int32_t val)
95 {
96 int32_t tmp = htonl(val);
97
98 memcpy(obuf, &tmp, sizeof(tmp));
99 }
100
101 void
putUShort(unsigned char * obuf,unsigned int val)102 putUShort(unsigned char *obuf, unsigned int val)
103 {
104 u_int16_t tmp = htons(val);
105
106 memcpy(obuf, &tmp, sizeof(tmp));
107 }
108
109 void
putShort(unsigned char * obuf,int val)110 putShort(unsigned char *obuf, int val)
111 {
112 int16_t tmp = htons(val);
113
114 memcpy(obuf, &tmp, sizeof(tmp));
115 }
116