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/* $OpenBSD: net_addrcmp.c,v 1.10 2005/06/17 20:36:16 henning Exp $ */
/*
* Copyright (c) 1999 Theo de Raadt
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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 <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <string.h>
int
net_addrcmp(struct sockaddr *sa1, struct sockaddr *sa2)
{
if (sa1->sa_len != sa2->sa_len)
return (sa1->sa_len < sa2->sa_len) ? -1 : 1;
if (sa1->sa_family != sa2->sa_family)
return (sa1->sa_family < sa2->sa_family) ? -1 : 1;
switch(sa1->sa_family) {
case AF_INET:
return (memcmp(&((struct sockaddr_in *)sa1)->sin_addr,
&((struct sockaddr_in *)sa2)->sin_addr,
sizeof(struct in_addr)));
case AF_INET6:
if (((struct sockaddr_in6 *)sa1)->sin6_scope_id !=
((struct sockaddr_in6 *)sa2)->sin6_scope_id)
return (((struct sockaddr_in6 *)sa1)->sin6_scope_id <
((struct sockaddr_in6 *)sa2)->sin6_scope_id)
? -1 : 1;
return memcmp(&((struct sockaddr_in6 *)sa1)->sin6_addr,
&((struct sockaddr_in6 *)sa2)->sin6_addr,
sizeof(struct in6_addr));
case AF_LOCAL:
return (strcmp(((struct sockaddr_un *)sa1)->sun_path,
((struct sockaddr_un *)sa1)->sun_path));
default:
return -1;
}
}
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