binio.c revision 1.1
1/* $NetBSD: binio.c,v 1.1 2009/12/13 16:55:23 kardel 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 "binio.h" 39 40long 41get_lsb_short( 42 unsigned char **bufpp 43 ) 44{ 45 long retval; 46 47 retval = *((*bufpp)++); 48 retval |= *((*bufpp)++) << 8; 49 50 return (retval & 0x8000) ? (~0xFFFF | retval) : retval; 51} 52 53void 54put_lsb_short( 55 unsigned char **bufpp, 56 long val 57 ) 58{ 59 *((*bufpp)++) = (unsigned char) (val & 0xFF); 60 *((*bufpp)++) = (unsigned char) ((val >> 8) & 0xFF); 61} 62 63long 64get_lsb_long( 65 unsigned char **bufpp 66 ) 67{ 68 long retval; 69 70 retval = *((*bufpp)++); 71 retval |= *((*bufpp)++) << 8; 72 retval |= *((*bufpp)++) << 16; 73 retval |= *((*bufpp)++) << 24; 74 75 return retval; 76} 77 78void 79put_lsb_long( 80 unsigned char **bufpp, 81 long val 82 ) 83{ 84 *((*bufpp)++) = (unsigned char)(val & 0xFF); 85 *((*bufpp)++) = (unsigned char)((val >> 8) & 0xFF); 86 *((*bufpp)++) = (unsigned char)((val >> 16) & 0xFF); 87 *((*bufpp)++) = (unsigned char)((val >> 24) & 0xFF); 88} 89 90long 91get_msb_short( 92 unsigned char **bufpp 93 ) 94{ 95 long retval; 96 97 retval = *((*bufpp)++) << 8; 98 retval |= *((*bufpp)++); 99 100 return (retval & 0x8000) ? (~0xFFFF | retval) : retval; 101} 102 103void 104put_msb_short( 105 unsigned char **bufpp, 106 long val 107 ) 108{ 109 *((*bufpp)++) = (unsigned char)((val >> 8) & 0xFF); 110 *((*bufpp)++) = (unsigned char)( val & 0xFF); 111} 112 113long 114get_msb_long( 115 unsigned char **bufpp 116 ) 117{ 118 long retval; 119 120 retval = *((*bufpp)++) << 24; 121 retval |= *((*bufpp)++) << 16; 122 retval |= *((*bufpp)++) << 8; 123 retval |= *((*bufpp)++); 124 125 return retval; 126} 127 128void 129put_msb_long( 130 unsigned char **bufpp, 131 long val 132 ) 133{ 134 *((*bufpp)++) = (unsigned char)((val >> 24) & 0xFF); 135 *((*bufpp)++) = (unsigned char)((val >> 16) & 0xFF); 136 *((*bufpp)++) = (unsigned char)((val >> 8 ) & 0xFF); 137 *((*bufpp)++) = (unsigned char)( val & 0xFF); 138} 139 140/* 141 * binio.c,v 142 * Revision 4.2 1999/02/21 12:17:34 kardel 143 * 4.91f reconcilation 144 * 145 * Revision 4.1 1998/06/28 16:47:50 kardel 146 * added {get,put}_msb_{short,long} functions 147 * 148 * Revision 4.0 1998/04/10 19:46:16 kardel 149 * Start 4.0 release version numbering 150 * 151 * Revision 1.1 1998/04/10 19:27:46 kardel 152 * initial NTP VERSION 4 integration of PARSE with GPS166 binary support 153 * 154 * Revision 1.1 1997/10/06 21:05:46 kardel 155 * new parse structure 156 * 157 */ 158