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/*
* $Source: /cvs/OpenBSD/src/kerberosIV/krb/Attic/lsb_addr_comp.h,v $
*/
/*
* Copyright 1987, 1988 by the Student Information Processing Board
* of the Massachusetts Institute of Technology
*
* Permission to use, copy, modify, and distribute this software
* and its documentation for any purpose and without fee is
* hereby granted, provided that the above copyright notice
* appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation,
* and that the names of M.I.T. and the M.I.T. S.I.P.B. not be
* used in advertising or publicity pertaining to distribution
* of the software without specific, written prior permission.
* M.I.T. and the M.I.T. S.I.P.B. make no representations about
* the suitability of this software for any purpose. It is
* provided "as is" without express or implied warranty.
*/
/*
* Comparison macros to emulate LSBFIRST comparison results of network
* byte-order quantities
*/
#ifndef LSB_ADDR_COMP_DEFS
#define LSB_ADDR_COMP_DEFS
#if BYTE_ORDER == BIG_ENDIAN
#define u_char_comp(x,y) \
(((x)>(y))?(1):(((x)==(y))?(0):(-1)))
/* This is gross, but... */
#define lsb_net_ulong_less(x, y) long_less_than((u_char *)&x, (u_char *)&y)
#define lsb_net_ushort_less(x, y) short_less_than((u_char *)&x, (u_char *)&y)
#define long_less_than(x,y) \
(u_char_comp((x)[3],(y)[3])?u_char_comp((x)[3],(y)[3]): \
(u_char_comp((x)[2],(y)[2])?u_char_comp((x)[2],(y)[2]): \
(u_char_comp((x)[1],(y)[1])?u_char_comp((x)[1],(y)[1]): \
(u_char_comp((x)[0],(y)[0])))))
#define short_less_than(x,y) \
(u_char_comp((x)[1],(y)[1])?u_char_comp((x)[1],(y)[1]): \
(u_char_comp((x)[0],(y)[0])))
#else /* !WORDS_BIGENDIAN */
#define lsb_net_ulong_less(x,y) ((x < y) ? -1 : ((x > y) ? 1 : 0))
#define lsb_net_ushort_less(x,y) ((x < y) ? -1 : ((x > y) ? 1 : 0))
#endif /* !WORDS_BIGENDIAN */
#endif /* LSB_ADDR_COMP_DEFS */
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