freebsd-dev/contrib/ntp/libntp/binio.c
2004-07-20 15:01:56 +00:00

129 lines
2.3 KiB
C

/*
* /src/NTP/ntp-4/libntp/binio.c,v 4.2 1999/02/21 12:17:34 kardel RELEASE_19990228_A
*
* $Created: Sun Jul 20 12:55:33 1997 $
*
* Copyright (C) 1997, 1998 by Frank Kardel
*/
#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
*
*/