#include "nest/bird.h"
#include "lib/ip.h"
#include "lib/net.h"

const u16 net_addr_length[] = {
  [NET_IP4] = sizeof(net_addr_ip4),
  [NET_IP6] = sizeof(net_addr_ip6),
  [NET_VPN4] = sizeof(net_addr_vpn4),
  [NET_VPN6] = sizeof(net_addr_vpn6)
}

char *
net_format(const net_addr *N, char *buf, int buflen)
{
  net_addr_union *n = (void *) N;

  /* FIXME: quick hack */
  switch (n->n.type)
  {
  case NET_IP4:
    return bsnprintf(buf, buflen, "%I/%d", n->ip4.prefix, n->ip4.pxlen);
  case NET_IP6:
    return bsnprintf(buf, buflen, "%I/%d", n->ip6.prefix, n->ip6.pxlen);
  case NET_VPN4:
    return bsnprintf(buf, buflen, "%u:%u %I/%d", (u32) (n->vpn4.rd >> 32), (u32) n->vpn4.rd, n->vpn4.prefix, n->vpn4.pxlen);
  case NET_VPN6:
    return bsnprintf(buf, buflen, "%u:%u %I/%d", (u32) (n->vpn6.rd >> 32), (u32) n->vpn6.rd, n->vpn6.prefix, n->vpn6.pxlen);
  }
}

int
net_classify(const net_addr *N)
{
  net_addr_union *n = (void *) N;

  switch (n->n.type)
  {
  case NET_IP4:
  case NET_VPN4:
    return ip4_zero(n->ip4.prefix) ? (IADDR_HOST | SCOPE_UNIVERSE) : ip4_classify(n->ip4.prefix);

  case NET_IP6:
  case NET_VPN6:
    return ip6_zero(n->ip6.prefix) ? (IADDR_HOST | SCOPE_UNIVERSE) : ip6_classify(n->ip6.prefix);
  }
}