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Annotation of embedaddon/ntp/libparse/binio.c, revision 1.1

1.1     ! misho       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:  */