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
38long
39get_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
51void
52put_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
61long
62get_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
76void
77put_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
88long
89get_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
101void
102put_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
111long
112get_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
126void
127put_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