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 <config.h> 37 #include "binio.h" 38 39 long 40 get_lsb_short( 41 unsigned char **bufpp 42 ) 43 { 44 long retval; 45 46 retval = *((*bufpp)++); 47 retval |= *((*bufpp)++) << 8; 48 49 return (retval & 0x8000) ? (~0xFFFF | retval) : retval; 50 } 51 52 void 53 put_lsb_short( 54 unsigned char **bufpp, 55 long val 56 ) 57 { 58 *((*bufpp)++) = (unsigned char) (val & 0xFF); 59 *((*bufpp)++) = (unsigned char) ((val >> 8) & 0xFF); 60 } 61 62 long 63 get_lsb_long( 64 unsigned char **bufpp 65 ) 66 { 67 long retval; 68 69 retval = *((*bufpp)++); 70 retval |= *((*bufpp)++) << 8; 71 retval |= *((*bufpp)++) << 16; 72 retval |= (u_long)*((*bufpp)++) << 24; 73 74 return retval; 75 } 76 77 void 78 put_lsb_long( 79 unsigned char **bufpp, 80 long val 81 ) 82 { 83 *((*bufpp)++) = (unsigned char)(val & 0xFF); 84 *((*bufpp)++) = (unsigned char)((val >> 8) & 0xFF); 85 *((*bufpp)++) = (unsigned char)((val >> 16) & 0xFF); 86 *((*bufpp)++) = (unsigned char)((val >> 24) & 0xFF); 87 } 88 89 long 90 get_msb_short( 91 unsigned char **bufpp 92 ) 93 { 94 long retval; 95 96 retval = *((*bufpp)++) << 8; 97 retval |= *((*bufpp)++); 98 99 return (retval & 0x8000) ? (~0xFFFF | retval) : retval; 100 } 101 102 void 103 put_msb_short( 104 unsigned char **bufpp, 105 long val 106 ) 107 { 108 *((*bufpp)++) = (unsigned char)((val >> 8) & 0xFF); 109 *((*bufpp)++) = (unsigned char)( val & 0xFF); 110 } 111 112 long 113 get_msb_long( 114 unsigned char **bufpp 115 ) 116 { 117 long retval; 118 119 retval = (u_long)*((*bufpp)++) << 24; 120 retval |= *((*bufpp)++) << 16; 121 retval |= *((*bufpp)++) << 8; 122 retval |= *((*bufpp)++); 123 124 return retval; 125 } 126 127 void 128 put_msb_long( 129 unsigned char **bufpp, 130 long val 131 ) 132 { 133 *((*bufpp)++) = (unsigned char)((val >> 24) & 0xFF); 134 *((*bufpp)++) = (unsigned char)((val >> 16) & 0xFF); 135 *((*bufpp)++) = (unsigned char)((val >> 8 ) & 0xFF); 136 *((*bufpp)++) = (unsigned char)( val & 0xFF); 137 } 138 139 /* 140 * binio.c,v 141 * Revision 4.2 1999/02/21 12:17:34 kardel 142 * 4.91f reconcilation 143 * 144 * Revision 4.1 1998/06/28 16:47:50 kardel 145 * added {get,put}_msb_{short,long} functions 146 * 147 * Revision 4.0 1998/04/10 19:46:16 kardel 148 * Start 4.0 release version numbering 149 * 150 * Revision 1.1 1998/04/10 19:27:46 kardel 151 * initial NTP VERSION 4 integration of PARSE with GPS166 binary support 152 * 153 * Revision 1.1 1997/10/06 21:05:46 kardel 154 * new parse structure 155 * 156 */ 157