/* Get the last host in a CIDR block */
CIDR *
cidr_addr_hostmax(const CIDR *addr)
{
CIDR *toret;
toret = cidr_addr_broadcast(addr);
if(toret==NULL)
return(NULL); /* Preserve errno */
toret->addr[15] &= 0xfe;
return(toret);
}
/* Is it an IPv4 broadcast address? */
int is_ipv4_broadcast(CIDR *address)
{
int result;
/* The very concept of broadcast address doesn't apply to
IPv6 and point-to-point or /32 IPv4 */
if( (cidr_get_proto(address) == CIDR_IPV4) &&
(cidr_equals(address, cidr_addr_broadcast(address)) == 0 ) &&
(cidr_get_pflen(address) < 31) )
{
result = RESULT_SUCCESS;
}
else
{
result = RESULT_FAILURE;
}
return(result);
}