PACK_START
struct FS_Node {
    uint64_t size;
    uint64_t timestamp;
    uint8_t  sha1[20];
    uint8_t  md5[16];
    uint8_t  crc32[4];

    // offsets to other nodes:
    uint64_t parentOffset;
    uint64_t childOffset;
    uint64_t siblingNextOffset;
    uint64_t siblingPrevOffset;
    uint64_t sameCrc32;
    uint64_t sameMd5;
    uint64_t sameSha1;
    uint64_t sameFilename;

    uint8_t  flags;
    uint8_t  type;
    uint16_t pathLength;
    char     path[1];
}
PACK_END