3 Safe copying of option values into and out of the option buffer, which
4 can't be assumed to be aligned. */
7 * Copyright (c) 1996-1999 Internet Software Consortium.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of The Internet Software Consortium nor the names
20 * of its contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
24 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
25 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
26 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
27 * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
28 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
29 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
31 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
32 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
34 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * This software has been written for the Internet Software Consortium
38 * by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc.
39 * To learn more about the Internet Software Consortium, see
40 * ``http://www.isc.org/''. To learn more about Vixie Enterprises,
41 * see ``http://www.vix.com''. To learn more about Nominum, Inc., see
42 * ``http://www.nominum.com''.
46 static char copyright[] =
47 "$Id: convert.c,v 1.1.2.1 2002/04/27 05:35:20 murray Exp $ Copyright (c) 1996-1999 The Internet Software Consortium. All rights reserved.\n";
50 #include <omapip/omapip_p.h>
52 u_int32_t getULong (buf)
53 const unsigned char *buf;
57 memcpy (&ibuf, buf, sizeof (u_int32_t));
62 const unsigned char *buf;
66 memcpy (&ibuf, buf, sizeof (int32_t));
70 u_int32_t getUShort (buf)
71 const unsigned char *buf;
75 memcpy (&ibuf, buf, sizeof (u_int16_t));
79 int32_t getShort (buf)
80 const unsigned char *buf;
84 memcpy (&ibuf, buf, sizeof (int16_t));
88 void putULong (obuf, val)
92 u_int32_t tmp = htonl (val);
93 memcpy (obuf, &tmp, sizeof tmp);
96 void putLong (obuf, val)
100 int32_t tmp = htonl (val);
101 memcpy (obuf, &tmp, sizeof tmp);
104 void putUShort (obuf, val)
108 u_int16_t tmp = htons (val);
109 memcpy (obuf, &tmp, sizeof tmp);
112 void putShort (obuf, val)
116 int16_t tmp = htons (val);
117 memcpy (obuf, &tmp, sizeof tmp);
120 void putUChar (obuf, val)
127 u_int32_t getUChar (obuf)
128 const unsigned char *obuf;
133 int converted_length (buf, base, width)
134 const unsigned char *buf;
141 u_int32_t newcolumn = base;
147 number = getUChar (buf);
149 number = getUShort (buf);
151 number = getULong (buf);
159 newcolumn = column * base;
160 /* If we wrap around, it must be the next power of two up. */
161 } while (newcolumn > column);
166 int binary_to_ascii (outbuf, inbuf, base, width)
167 unsigned char *outbuf;
168 const unsigned char *inbuf;
173 static char h2a [] = "0123456789abcdef";
174 int power = converted_length (inbuf, base, width);
181 number = getUChar (inbuf);
183 number = getUShort (inbuf);
185 number = getULong (inbuf);
187 for (i = power - 1 ; i >= 0; i--) {
188 outbuf [i] = h2a [number % base];