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/*
* $Source$
* $Author$
*
* Copyright 1990 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, 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 name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*
* krb5_fulladdr_order()
*/
#if !defined(lint) && !defined(SABER)
static char rcsid_faddr_ordr_c[] =
"$Id$";
#endif /* !lint & !SABER */
#include <krb5/krb5.h>
#include <krb5/ext-proto.h>
#ifndef min
#define min(a,b) ((a) > (b) ? (a) : (b))
#endif
/*
* Return an ordering on the two full addresses: 0 if the same,
* < 0 if first is less than 2nd, > 0 if first is greater than 2nd.
*/
int
krb5_fulladdr_order(addr1, addr2)
register const krb5_fulladdr *addr1;
register const krb5_fulladdr *addr2;
{
int dir;
const int minlen = min(addr1->address->length, addr2->address->length);
register int i;
dir = addr1->address->addrtype - addr2->address->addrtype;
if (dir)
return(dir);
dir = addr1->address->length - addr2->address->length;
if (dir)
return(dir);
for (i = 0; i < minlen; i++) {
if ((unsigned char) addr1->address->contents[i] <
(unsigned char) addr2->address->contents[i])
return -1;
else if ((unsigned char) addr1->address->contents[i] >
(unsigned char) addr2->address->contents[i])
return 1;
}
if (addr1->port > addr2->port)
return(1);
else if (addr1->port < addr2->port)
return(-1);
else
return(0);
}
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