1 |
|
|
/* $OpenBSD: convert.c,v 1.5 2016/02/06 23:50:10 krw 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 <sys/types.h> |
47 |
|
|
#include <sys/socket.h> |
48 |
|
|
|
49 |
|
|
#include <net/if.h> |
50 |
|
|
|
51 |
|
|
#include <netinet/in.h> |
52 |
|
|
|
53 |
|
|
#include <stdio.h> |
54 |
|
|
#include <stdlib.h> |
55 |
|
|
#include <string.h> |
56 |
|
|
|
57 |
|
|
#include "dhcp.h" |
58 |
|
|
#include "tree.h" |
59 |
|
|
#include "dhcpd.h" |
60 |
|
|
|
61 |
|
|
u_int32_t |
62 |
|
|
getULong(unsigned char *buf) |
63 |
|
|
{ |
64 |
|
|
u_int32_t ibuf; |
65 |
|
|
|
66 |
|
|
memcpy(&ibuf, buf, sizeof(ibuf)); |
67 |
|
|
return (ntohl(ibuf)); |
68 |
|
|
} |
69 |
|
|
|
70 |
|
|
u_int16_t |
71 |
|
|
getUShort(unsigned char *buf) |
72 |
|
|
{ |
73 |
|
|
u_int16_t ibuf; |
74 |
|
|
|
75 |
|
|
memcpy(&ibuf, buf, sizeof(ibuf)); |
76 |
|
|
return (ntohs(ibuf)); |
77 |
|
|
} |
78 |
|
|
|
79 |
|
|
void |
80 |
|
|
putULong(unsigned char *obuf, u_int32_t val) |
81 |
|
|
{ |
82 |
|
|
u_int32_t tmp = htonl(val); |
83 |
|
|
|
84 |
|
|
memcpy(obuf, &tmp, sizeof(tmp)); |
85 |
|
|
} |
86 |
|
|
|
87 |
|
|
void |
88 |
|
|
putLong(unsigned char *obuf, int32_t val) |
89 |
|
|
{ |
90 |
|
|
int32_t tmp = htonl(val); |
91 |
|
|
|
92 |
|
|
memcpy(obuf, &tmp, sizeof(tmp)); |
93 |
|
|
} |
94 |
|
|
|
95 |
|
|
void |
96 |
|
|
putUShort(unsigned char *obuf, unsigned int val) |
97 |
|
|
{ |
98 |
|
|
u_int16_t tmp = htons(val); |
99 |
|
|
|
100 |
|
|
memcpy(obuf, &tmp, sizeof(tmp)); |
101 |
|
|
} |
102 |
|
|
|
103 |
|
|
void |
104 |
|
|
putShort(unsigned char *obuf, int val) |
105 |
|
|
{ |
106 |
|
|
int16_t tmp = htons(val); |
107 |
|
|
|
108 |
|
|
memcpy(obuf, &tmp, sizeof(tmp)); |
109 |
|
|
} |