blob: 342b01af89b754db275dbcd318f455c31f0321b8 [file] [log] [blame]
/*
* Misc pieces
*/
#include "config.h"
#include "cidr.h"
static const char *__libcidr_version = CIDR_VERSION_STR;
/* Library version info */
const char *cidr_version(void)
{
return (__libcidr_version);
}
/* Is a CIDR a v4-mapped IPv6 address? */
int cidr_is_v4mapped(const CIDR * addr)
{
int i;
if (addr->proto != CIDR_IPV6)
return (-1);
/* First 10 octets should be 0 */
for (i = 0; i <= 9; i++)
if (addr->addr[i] != 0)
return (-1);
/* Next 2 should be 0xff */
for (i = 10; i <= 11; i++)
if (addr->addr[i] != 0xff)
return (-1);
/* Then it is */
return (0);
}