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/*
* lib/krb5/krb/addr_srch.c
*
* 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. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* 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_address_search()
*/
#include "k5-int.h"
static unsigned int
address_count(krb5_address *const *addrlist)
{
unsigned int i;
if (addrlist == NULL)
return 0;
for (i = 0; addrlist[i]; i++)
;
return i;
}
/*
* if addr is listed in addrlist, or addrlist is null, return TRUE.
* if not listed, return FALSE
*/
krb5_boolean
krb5_address_search(krb5_context context, const krb5_address *addr, krb5_address *const *addrlist)
{
/*
* Treat an address list containing only a NetBIOS address
* as empty, because we presently have no way of associating
* a client with its NetBIOS address.
*/
if (address_count(addrlist) == 1 &&
addrlist[0]->addrtype == ADDRTYPE_NETBIOS)
return TRUE;
if (!addrlist)
return TRUE;
for (; *addrlist; addrlist++) {
if (krb5_address_compare(context, addr, *addrlist))
return TRUE;
}
return FALSE;
}
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