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 "binio.h"
37
38 long
get_lsb_short(unsigned char ** bufpp)39 get_lsb_short(
40 unsigned char **bufpp
41 )
42 {
43 long retval;
44
45 retval = *((*bufpp)++);
46 retval |= *((*bufpp)++) << 8;
47
48 return (retval & 0x8000) ? (~0xFFFF | retval) : retval;
49 }
50
51 void
put_lsb_short(unsigned char ** bufpp,long val)52 put_lsb_short(
53 unsigned char **bufpp,
54 long val
55 )
56 {
57 *((*bufpp)++) = (unsigned char) (val & 0xFF);
58 *((*bufpp)++) = (unsigned char) ((val >> 8) & 0xFF);
59 }
60
61 long
get_lsb_long(unsigned char ** bufpp)62 get_lsb_long(
63 unsigned char **bufpp
64 )
65 {
66 long retval;
67
68 retval = *((*bufpp)++);
69 retval |= *((*bufpp)++) << 8;
70 retval |= *((*bufpp)++) << 16;
71 retval |= *((*bufpp)++) << 24;
72
73 return retval;
74 }
75
76 void
put_lsb_long(unsigned char ** bufpp,long val)77 put_lsb_long(
78 unsigned char **bufpp,
79 long val
80 )
81 {
82 *((*bufpp)++) = (unsigned char)(val & 0xFF);
83 *((*bufpp)++) = (unsigned char)((val >> 8) & 0xFF);
84 *((*bufpp)++) = (unsigned char)((val >> 16) & 0xFF);
85 *((*bufpp)++) = (unsigned char)((val >> 24) & 0xFF);
86 }
87
88 long
get_msb_short(unsigned char ** bufpp)89 get_msb_short(
90 unsigned char **bufpp
91 )
92 {
93 long retval;
94
95 retval = *((*bufpp)++) << 8;
96 retval |= *((*bufpp)++);
97
98 return (retval & 0x8000) ? (~0xFFFF | retval) : retval;
99 }
100
101 void
put_msb_short(unsigned char ** bufpp,long val)102 put_msb_short(
103 unsigned char **bufpp,
104 long val
105 )
106 {
107 *((*bufpp)++) = (unsigned char)((val >> 8) & 0xFF);
108 *((*bufpp)++) = (unsigned char)( val & 0xFF);
109 }
110
111 long
get_msb_long(unsigned char ** bufpp)112 get_msb_long(
113 unsigned char **bufpp
114 )
115 {
116 long retval;
117
118 retval = *((*bufpp)++) << 24;
119 retval |= *((*bufpp)++) << 16;
120 retval |= *((*bufpp)++) << 8;
121 retval |= *((*bufpp)++);
122
123 return retval;
124 }
125
126 void
put_msb_long(unsigned char ** bufpp,long val)127 put_msb_long(
128 unsigned char **bufpp,
129 long val
130 )
131 {
132 *((*bufpp)++) = (unsigned char)((val >> 24) & 0xFF);
133 *((*bufpp)++) = (unsigned char)((val >> 16) & 0xFF);
134 *((*bufpp)++) = (unsigned char)((val >> 8 ) & 0xFF);
135 *((*bufpp)++) = (unsigned char)( val & 0xFF);
136 }
137
138 /*
139 * binio.c,v
140 * Revision 4.2 1999/02/21 12:17:34 kardel
141 * 4.91f reconcilation
142 *
143 * Revision 4.1 1998/06/28 16:47:50 kardel
144 * added {get,put}_msb_{short,long} functions
145 *
146 * Revision 4.0 1998/04/10 19:46:16 kardel
147 * Start 4.0 release version numbering
148 *
149 * Revision 1.1 1998/04/10 19:27:46 kardel
150 * initial NTP VERSION 4 integration of PARSE with GPS166 binary support
151 *
152 * Revision 1.1 1997/10/06 21:05:46 kardel
153 * new parse structure
154 *
155 */
156