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freebsd/contrib/ntp/libparse/binio.c
Ollivier Robert ea906c4152 Merge ntpd & friends 4.2.4p5 from vendor/ntp/dist into head. Next commit
will update usr.sbin/ntp to match this.

MFC after:	2 weeks
2008-08-22 15:58:00 +00:00

156 lines
3.8 KiB
C

/*
* /src/NTP/ntp4-dev/libntp/binio.c,v 4.5 2005/04/16 17:32:10 kardel RELEASE_20050508_A
*
* binio.c,v 4.5 2005/04/16 17:32:10 kardel RELEASE_20050508_A
*
* $Created: Sun Jul 20 12:55:33 1997 $
*
* Copyright (c) 1997-2005 by Frank Kardel <kardel <AT> ntp.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include "binio.h"
long
get_lsb_short(
unsigned char **bufpp
)
{
long retval;
retval = *((*bufpp)++);
retval |= *((*bufpp)++) << 8;
return (retval & 0x8000) ? (~0xFFFF | retval) : retval;
}
void
put_lsb_short(
unsigned char **bufpp,
long val
)
{
*((*bufpp)++) = (unsigned char) (val & 0xFF);
*((*bufpp)++) = (unsigned char) ((val >> 8) & 0xFF);
}
long
get_lsb_long(
unsigned char **bufpp
)
{
long retval;
retval = *((*bufpp)++);
retval |= *((*bufpp)++) << 8;
retval |= *((*bufpp)++) << 16;
retval |= *((*bufpp)++) << 24;
return retval;
}
void
put_lsb_long(
unsigned char **bufpp,
long val
)
{
*((*bufpp)++) = (unsigned char)(val & 0xFF);
*((*bufpp)++) = (unsigned char)((val >> 8) & 0xFF);
*((*bufpp)++) = (unsigned char)((val >> 16) & 0xFF);
*((*bufpp)++) = (unsigned char)((val >> 24) & 0xFF);
}
long
get_msb_short(
unsigned char **bufpp
)
{
long retval;
retval = *((*bufpp)++) << 8;
retval |= *((*bufpp)++);
return (retval & 0x8000) ? (~0xFFFF | retval) : retval;
}
void
put_msb_short(
unsigned char **bufpp,
long val
)
{
*((*bufpp)++) = (unsigned char)((val >> 8) & 0xFF);
*((*bufpp)++) = (unsigned char)( val & 0xFF);
}
long
get_msb_long(
unsigned char **bufpp
)
{
long retval;
retval = *((*bufpp)++) << 24;
retval |= *((*bufpp)++) << 16;
retval |= *((*bufpp)++) << 8;
retval |= *((*bufpp)++);
return retval;
}
void
put_msb_long(
unsigned char **bufpp,
long val
)
{
*((*bufpp)++) = (unsigned char)((val >> 24) & 0xFF);
*((*bufpp)++) = (unsigned char)((val >> 16) & 0xFF);
*((*bufpp)++) = (unsigned char)((val >> 8 ) & 0xFF);
*((*bufpp)++) = (unsigned char)( val & 0xFF);
}
/*
* binio.c,v
* Revision 4.2 1999/02/21 12:17:34 kardel
* 4.91f reconcilation
*
* Revision 4.1 1998/06/28 16:47:50 kardel
* added {get,put}_msb_{short,long} functions
*
* Revision 4.0 1998/04/10 19:46:16 kardel
* Start 4.0 release version numbering
*
* Revision 1.1 1998/04/10 19:27:46 kardel
* initial NTP VERSION 4 integration of PARSE with GPS166 binary support
*
* Revision 1.1 1997/10/06 21:05:46 kardel
* new parse structure
*
*/