aboutsummaryrefslogtreecommitdiff
path: root/sbin/dhclient/convert.c
blob: adca0929a07cbf02602403f5b858aad8254fe2cd (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
/*	$OpenBSD: convert.c,v 1.5 2004/02/07 11:35:59 henning Exp $	*/

/*
 * Safe copying of option values into and out of the option buffer,
 * which can't be assumed to be aligned.
 */

/*
 * Copyright (c) 1995, 1996 The Internet Software Consortium.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of The Internet Software Consortium nor the names
 *    of its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * This software has been written for the Internet Software Consortium
 * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
 * Enterprises.  To learn more about the Internet Software Consortium,
 * see ``http://www.vix.com/isc''.  To learn more about Vixie
 * Enterprises, see ``http://www.vix.com''.
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include "dhcpd.h"

u_int32_t
getULong(unsigned char *buf)
{
	u_int32_t ibuf;

	memcpy(&ibuf, buf, sizeof(ibuf));
	return (ntohl(ibuf));
}

int32_t
getLong(unsigned char *(buf))
{
	int32_t ibuf;

	memcpy(&ibuf, buf, sizeof(ibuf));
	return (ntohl(ibuf));
}

u_int16_t
getUShort(unsigned char *buf)
{
	u_int16_t ibuf;

	memcpy(&ibuf, buf, sizeof(ibuf));
	return (ntohs(ibuf));
}

int16_t
getShort(unsigned char *buf)
{
	int16_t ibuf;

	memcpy(&ibuf, buf, sizeof(ibuf));
	return (ntohs(ibuf));
}

void
putULong(unsigned char *obuf, u_int32_t val)
{
	u_int32_t tmp = htonl(val);

	memcpy(obuf, &tmp, sizeof(tmp));
}

void
putLong(unsigned char *obuf, int32_t val)
{
	int32_t tmp = htonl(val);

	memcpy(obuf, &tmp, sizeof(tmp));
}

void
putUShort(unsigned char *obuf, unsigned int val)
{
	u_int16_t tmp = htons(val);

	memcpy(obuf, &tmp, sizeof(tmp));
}

void
putShort(unsigned char *obuf, int val)
{
	int16_t tmp = htons(val);

	memcpy(obuf, &tmp, sizeof(tmp));
}