Class FileHeader

Libraries/unrar/headers.hpp:175–260

struct FileHeader:BlockHeader
{
  byte HostOS;
  uint UnpVer; // It is 1 byte in RAR29 and bit field in RAR5.
  byte Method;
  union {
    uint FileAttr;
    uint SubFlags;
  };
  wchar FileName[NM];

  Array<byte> SubData;

  RarTime mtime;
  RarTime ctime;
  RarTime atime;

  int64 PackSize;
  int64 UnpSize;
  int64 MaxSize; // Reserve packed and unpacked size bytes for vint of this size.

  HashValue FileHash;

  uint FileFlags;

  bool SplitBefore;
  bool SplitAfter;

  bool UnknownUnpSize;

  bool Encrypted;
  CRYPT_METHOD CryptMethod;
  bool SaltSet;
  byte Salt[SIZE_SALT50];
  byte InitV[SIZE_INITV];
  bool UsePswCheck;
  byte PswCheck[SIZE_PSWCHECK];

  // Use HMAC calculated from HashKey and checksum instead of plain checksum.
  bool UseHashKey;

  // Key to convert checksum to HMAC. Derived from password with PBKDF2
  // using additional iterations.
  byte HashKey[SHA256_DIGEST_SIZE];

  uint Lg2Count; // Log2 of PBKDF2 repetition count.

  bool Solid;
  bool Dir;
  bool CommentInHeader; // RAR 2.0 file comment.
  bool Version;   // name.ext;ver file name containing the version number.
  size_t WinSize;
  bool Inherited; // New file inherits a subblock when updating a host file (for subblocks only).

  // 'true' if file sizes use 8 bytes instead of 4. Not used in RAR 5.0.
  bool LargeFile;
  
  // 'true' for HEAD_SERVICE block, which is a child of preceding file block.