1 /*
2 * /src/NTP/ntp4-dev/libntp/binio.c,v 4.5 2005/04/16 17:32:10 kardel RELEASE_20050508_A
3 *
4 * binio.c,v 4.5 2005/04/16 17:32:10 kardel RELEASE_20050508_A
5 *
6 * $Created: Sun Jul 20 12:55:33 1997 $
7 *
8 * Copyright (c) 1997-2005 by Frank Kardel <kardel <AT> ntp.org>
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the author nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 */
35
36 #include <config.h>
37 #include "binio.h"
38
39 long
get_lsb_short(unsigned char ** bufpp)40 get_lsb_short(
41 unsigned char **bufpp
42 )
43 {
44 long retval;
45
46 retval = *((*bufpp)++);
47 retval |= *((*bufpp)++) << 8;
48
49 return (retval & 0x8000) ? (~0xFFFF | retval) : retval;
50 }
51
52 void
put_lsb_short(unsigned char ** bufpp,long val)53 put_lsb_short(
54 unsigned char **bufpp,
55 long val
56 )
57 {
58 *((*bufpp)++) = (unsigned char) (val & 0xFF);
59 *((*bufpp)++) = (unsigned char) ((val >> 8) & 0xFF);
60 }
61
62 long
get_lsb_long(unsigned char ** bufpp)63 get_lsb_long(
64 unsigned char **bufpp
65 )
66 {
67 long retval;
68
69 retval = *((*bufpp)++);
70 retval |= *((*bufpp)++) << 8;
71 retval |= *((*bufpp)++) << 16;
72 retval |= (u_long)*((*bufpp)++) << 24;
73
74 return retval;
75 }
76
77 void
put_lsb_long(unsigned char ** bufpp,long val)78 put_lsb_long(
79 unsigned char **bufpp,
80 long val
81 )
82 {
83 *((*bufpp)++) = (unsigned char)(val & 0xFF);
84 *((*bufpp)++) = (unsigned char)((val >> 8) & 0xFF);
85 *((*bufpp)++) = (unsigned char)((val >> 16) & 0xFF);
86 *((*bufpp)++) = (unsigned char)((val >> 24) & 0xFF);
87 }
88
89 long
get_msb_short(unsigned char ** bufpp)90 get_msb_short(
91 unsigned char **bufpp
92 )
93 {
94 long retval;
95
96 retval = *((*bufpp)++) << 8;
97 retval |= *((*bufpp)++);
98
99 return (retval & 0x8000) ? (~0xFFFF | retval) : retval;
100 }
101
102 void
put_msb_short(unsigned char ** bufpp,long val)103 put_msb_short(
104 unsigned char **bufpp,
105 long val
106 )
107 {
108 *((*bufpp)++) = (unsigned char)((val >> 8) & 0xFF);
109 *((*bufpp)++) = (unsigned char)( val & 0xFF);
110 }
111
112 long
get_msb_long(unsigned char ** bufpp)113 get_msb_long(
114 unsigned char **bufpp
115 )
116 {
117 long retval;
118
119 retval = (u_long)*((*bufpp)++) << 24;
120 retval |= *((*bufpp)++) << 16;
121 retval |= *((*bufpp)++) << 8;
122 retval |= *((*bufpp)++);
123
124 return retval;
125 }
126
127 void
put_msb_long(unsigned char ** bufpp,long val)128 put_msb_long(
129 unsigned char **bufpp,
130 long val
131 )
132 {
133 *((*bufpp)++) = (unsigned char)((val >> 24) & 0xFF);
134 *((*bufpp)++) = (unsigned char)((val >> 16) & 0xFF);
135 *((*bufpp)++) = (unsigned char)((val >> 8 ) & 0xFF);
136 *((*bufpp)++) = (unsigned char)( val & 0xFF);
137 }
138
139 /*
140 * binio.c,v
141 * Revision 4.2 1999/02/21 12:17:34 kardel
142 * 4.91f reconcilation
143 *
144 * Revision 4.1 1998/06/28 16:47:50 kardel
145 * added {get,put}_msb_{short,long} functions
146 *
147 * Revision 4.0 1998/04/10 19:46:16 kardel
148 * Start 4.0 release version numbering
149 *
150 * Revision 1.1 1998/04/10 19:27:46 kardel
151 * initial NTP VERSION 4 integration of PARSE with GPS166 binary support
152 *
153 * Revision 1.1 1997/10/06 21:05:46 kardel
154 * new parse structure
155 *
156 */
157