struct ripng_peer *ripng_peer_lookup_next(struct in6_addr *addr)
{
struct ripng_peer *peer;
struct listnode *node, *nnode;
for (ALL_LIST_ELEMENTS(peer_list, node, nnode, peer)) {
if (addr6_cmp(&peer->addr, addr) > 0)
return peer;
}
return NULL;
}
static int fd_addr_cmp(int type, void *a, void *b)
{
assert(type == SCAMPER_FD_TYPE_TCP4 || type == SCAMPER_FD_TYPE_TCP6 ||
type == SCAMPER_FD_TYPE_UDP4 || type == SCAMPER_FD_TYPE_UDP6 ||
type == SCAMPER_FD_TYPE_UDP4DG ||
type == SCAMPER_FD_TYPE_ICMP4 || type == SCAMPER_FD_TYPE_ICMP6);
if(a == NULL && b != NULL) return -1;
if(a != NULL && b == NULL) return 1;
if(a == NULL && b == NULL) return 0;
if(type == SCAMPER_FD_TYPE_TCP4 ||
type == SCAMPER_FD_TYPE_UDP4 ||
type == SCAMPER_FD_TYPE_UDP4DG ||
type == SCAMPER_FD_TYPE_ICMP4)
return addr4_cmp(a, b);
else
return addr6_cmp(a, b);
}
int scamper_if_getifindex_byaddr(const struct sockaddr *addr, int *ifindex)
{
struct ifaddrs *ifa = NULL, *ifp;
int rc;
if(getifaddrs(&ifa) != 0)
goto err;
for(ifp = ifa; ifp != NULL; ifp = ifp->ifa_next)
{
if(ifp->ifa_addr == NULL || ifp->ifa_addr->sa_family != addr->sa_family)
continue;
if(addr->sa_family == AF_INET)
rc = addr4_cmp(&((struct sockaddr_in *)addr)->sin_addr,
&((struct sockaddr_in *)ifp->ifa_addr)->sin_addr);
else if(addr->sa_family == AF_INET6)
rc = addr6_cmp(&((struct sockaddr_in6 *)addr)->sin6_addr,
&((struct sockaddr_in6 *)ifp->ifa_addr)->sin6_addr);
else goto err;
if(rc == 0)
break;
}
if(ifp == NULL)
{
errno = ENOENT;
goto err;
}
rc = scamper_if_getifindex(ifp->ifa_name, ifindex);
freeifaddrs(ifa);
return rc;
err:
if(ifa != NULL) freeifaddrs(ifa);
return -1;
}
static int ripng_peer_list_cmp(struct ripng_peer *p1, struct ripng_peer *p2)
{
return addr6_cmp(&p1->addr, &p2->addr) > 0;
}
