/* Get the first host in a CIDR block */
CIDR *
cidr_addr_hostmin(const CIDR *addr)
{
CIDR *toret;
toret = cidr_addr_network(addr);
if(toret==NULL)
return(NULL); /* Preserve errno */
toret->addr[15] |= 1;
return(toret);
}
/* Is it a correct IPv6 network address? */
int is_ipv6_net(CIDR *address)
{
int result;
if( (cidr_get_proto(address) == CIDR_IPV6) &&
(cidr_equals(address, cidr_addr_network(address)) == 0) )
{
result = RESULT_SUCCESS;
}
else
{
result = RESULT_FAILURE;
}
return(result);
}
/* Is it a correct IPv4 host (i.e. not network) address? */
int is_ipv4_host(CIDR *address)
{
int result;
if( (cidr_get_proto(address) == CIDR_IPV4) &&
((cidr_equals(address, cidr_addr_network(address)) < 0) ||
(cidr_get_pflen(address) == 32)) )
{
result = RESULT_SUCCESS;
}
else
{
result = RESULT_FAILURE;
}
return(result);
}
