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 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 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 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 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 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 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 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 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