1 /* $NetBSD: binio.c,v 1.5 2020/05/25 20:47:25 christos Exp $ */
2
3 /*
4 * /src/NTP/ntp4-dev/libntp/binio.c,v 4.5 2005/04/16 17:32:10 kardel RELEASE_20050508_A
5 *
6 * binio.c,v 4.5 2005/04/16 17:32:10 kardel RELEASE_20050508_A
7 *
8 * $Created: Sun Jul 20 12:55:33 1997 $
9 *
10 * Copyright (c) 1997-2005 by Frank Kardel <kardel <AT> ntp.org>
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 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the author nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 */
37
38 #include <config.h>
39 #include "binio.h"
40
41 long
get_lsb_short(unsigned char ** bufpp)42 get_lsb_short(
43 unsigned char **bufpp
44 )
45 {
46 long retval;
47
48 retval = *((*bufpp)++);
49 retval |= *((*bufpp)++) << 8;
50
51 return (retval & 0x8000) ? (~0xFFFF | retval) : retval;
52 }
53
54 void
put_lsb_short(unsigned char ** bufpp,long val)55 put_lsb_short(
56 unsigned char **bufpp,
57 long val
58 )
59 {
60 *((*bufpp)++) = (unsigned char) (val & 0xFF);
61 *((*bufpp)++) = (unsigned char) ((val >> 8) & 0xFF);
62 }
63
64 long
get_lsb_long(unsigned char ** bufpp)65 get_lsb_long(
66 unsigned char **bufpp
67 )
68 {
69 long retval;
70
71 retval = *((*bufpp)++);
72 retval |= *((*bufpp)++) << 8;
73 retval |= *((*bufpp)++) << 16;
74 retval |= (u_long)*((*bufpp)++) << 24;
75
76 return retval;
77 }
78
79 void
put_lsb_long(unsigned char ** bufpp,long val)80 put_lsb_long(
81 unsigned char **bufpp,
82 long val
83 )
84 {
85 *((*bufpp)++) = (unsigned char)(val & 0xFF);
86 *((*bufpp)++) = (unsigned char)((val >> 8) & 0xFF);
87 *((*bufpp)++) = (unsigned char)((val >> 16) & 0xFF);
88 *((*bufpp)++) = (unsigned char)((val >> 24) & 0xFF);
89 }
90
91 long
get_msb_short(unsigned char ** bufpp)92 get_msb_short(
93 unsigned char **bufpp
94 )
95 {
96 long retval;
97
98 retval = *((*bufpp)++) << 8;
99 retval |= *((*bufpp)++);
100
101 return (retval & 0x8000) ? (~0xFFFF | retval) : retval;
102 }
103
104 void
put_msb_short(unsigned char ** bufpp,long val)105 put_msb_short(
106 unsigned char **bufpp,
107 long val
108 )
109 {
110 *((*bufpp)++) = (unsigned char)((val >> 8) & 0xFF);
111 *((*bufpp)++) = (unsigned char)( val & 0xFF);
112 }
113
114 long
get_msb_long(unsigned char ** bufpp)115 get_msb_long(
116 unsigned char **bufpp
117 )
118 {
119 long retval;
120
121 retval = (u_long)*((*bufpp)++) << 24;
122 retval |= *((*bufpp)++) << 16;
123 retval |= *((*bufpp)++) << 8;
124 retval |= *((*bufpp)++);
125
126 return retval;
127 }
128
129 void
put_msb_long(unsigned char ** bufpp,long val)130 put_msb_long(
131 unsigned char **bufpp,
132 long val
133 )
134 {
135 *((*bufpp)++) = (unsigned char)((val >> 24) & 0xFF);
136 *((*bufpp)++) = (unsigned char)((val >> 16) & 0xFF);
137 *((*bufpp)++) = (unsigned char)((val >> 8 ) & 0xFF);
138 *((*bufpp)++) = (unsigned char)( val & 0xFF);
139 }
140
141 /*
142 * binio.c,v
143 * Revision 4.2 1999/02/21 12:17:34 kardel
144 * 4.91f reconcilation
145 *
146 * Revision 4.1 1998/06/28 16:47:50 kardel
147 * added {get,put}_msb_{short,long} functions
148 *
149 * Revision 4.0 1998/04/10 19:46:16 kardel
150 * Start 4.0 release version numbering
151 *
152 * Revision 1.1 1998/04/10 19:27:46 kardel
153 * initial NTP VERSION 4 integration of PARSE with GPS166 binary support
154 *
155 * Revision 1.1 1997/10/06 21:05:46 kardel
156 * new parse structure
157 *
158 */
159