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Loan Settlement - Looking for 1,000 Dollar Fast Loan. No ...

1609

 0x01 - file continued from previous volume
                0x02 - file continued in next volume
                0x04 - file encrypted with password

                0x08 - file comment present
                       RAR 3.x uses the separate comment block
                       and does not set this flag.

                0x10 - information from previous files is used (solid flag)
                       (for RAR 2.0 and later)

                bits 7 6 5 (for RAR 2.0 and later)

                     0 0 0    - dictionary size   64 KB
                     0 0 1    - dictionary size  128 KB
                     0 1 0    - dictionary size  256 KB
                     0 1 1    - dictionary size  512 KB
                     1 0 0    - dictionary size 1024 KB
                     1 0 1    - dictionary size 2048 KB
                     1 1 0    - dictionary size 4096 KB
                     1 1 1    - file is directory

               0x100 - HIGH_PACK_SIZE and HIGH_UNP_SIZE fields
                       are present. These fields are used to archive
                       only very large files (larger than 2Gb),
                       for smaller files these fields are absent.

               0x200 - FILE_NAME contains both usual and encoded
                       Unicode name separated by zero. In this case
                       NAME_SIZE field is equal to the length
                       of usual name plus encoded Unicode name plus 1.

               0x400 - the header contains additional 8 bytes
                       after the file name, which are required to
                       increase encryption security (so called 'salt').

               0x800 - Version flag. It is an old file version,
                       a version number is appended to file name as ';n'.

              0x1000 - Extended time field present.

              0x8000 - this bit always is set, so the complete
                       block size is HEAD_SIZE + PACK_SIZE
                       (and plus HIGH_PACK_SIZE, if bit 0x100 is set)

HEAD_SIZE       File header full size including file name and comments
2 bytes

PACK_SIZE       Compressed file size
4 bytes

UNP_SIZE        Uncompressed file size
4 bytes

HOST_OS         Operating system used for archiving
1 byte                 0 - MS DOS
                       1 - OS/2
                       2 - Win32
                       3 - Unix
                       4 - Mac OS
                       5 - BeOS

FILE_CRC        File CRC
4 bytes

FTIME           Date and time in standard MS DOS format
4 bytes

UNP_VER         RAR version needed to extract file
1 byte
                Version number is encoded as
                10 * Major version + minor version.

METHOD          Packing method
1 byte
                0x30 - storing
                0x31 - fastest compression
                0x32 - fast compression
                0x33 - normal compression
                0x34 - good compression
                0x35 - best compression

NAME_SIZE       File name size
2 bytes

ATTR            File attributes
4 bytes

HIGH_PACK_SIZE  High 4 bytes of 64 bit value of compressed file size.
4 bytes         Optional value, presents only if bit 0x100 in HEAD_FLAGS
                is set.

HIGH_UNP_SIZE   High 4 bytes of 64 bit value of uncompressed file size.
4 bytes         Optional value, presents only if bit 0x100 in HEAD_FLAGS
                is set.

FILE_NAME       File name - string of NAME_SIZE bytes size

SALT            present if (HEAD_FLAGS & 0x400) != 0
8 bytes

EXT_TIME        present if (HEAD_FLAGS & 0x1000) != 0
variable size

other new fields may appear here.


 ==========================================================================
                              Application notes
 ==========================================================================

   1. To process an SFX archive you need to skip the SFX module searching
for the marker block in the archive. There is no marker block sequence (0x52
0x61 0x72 0x21 0x1a 0x07 0x00) in the SFX module itself.

   2. The CRC is calculated using the standard polynomial 0xEDB88320. In
case the size of the CRC is less than 4 bytes, only the low order bytes
are used.