Function cleanup_xaddrs_inet

lib/ff_route.c:242–278

}

static int
cleanup_xaddrs_inet(struct rt_addrinfo *info)
{
    struct sockaddr_in *dst_sa, *mask_sa;

    /* Check & fixup dst/netmask combination first */
    dst_sa = (struct sockaddr_in *)info->rti_info[RTAX_DST];
    mask_sa = (struct sockaddr_in *)info->rti_info[RTAX_NETMASK];

    struct in_addr mask = {
        .s_addr = mask_sa ? mask_sa->sin_addr.s_addr : INADDR_BROADCAST,
    };
    struct in_addr dst = {
        .s_addr = htonl(ntohl(dst_sa->sin_addr.s_addr) & ntohl(mask.s_addr))
    };

    if (dst_sa->sin_len < sizeof(struct sockaddr_in)) {
        printf("dst sin_len too small\n");
        return (EINVAL);
    }
    if (mask_sa && mask_sa->sin_len < sizeof(struct sockaddr_in)) {
        printf("mask sin_len too small\n");
        return (EINVAL);
    }
    fill_sockaddr_inet(dst_sa, dst);

    if (mask.s_addr != INADDR_BROADCAST)
        fill_sockaddr_inet(mask_sa, mask);
    else
        remove_netmask(info);

    /* Check gateway */
    if (info->rti_info[RTAX_GATEWAY] != NULL)
        return (cleanup_xaddrs_gateway(info));

    return (0);
}

#ifdef INET6
static int