ewfacquirestreamis a utility to acquire media data from stdin and store it in EWF format (Expert Witness Format).
ewfacquirestreamacquires media data in a format equivalent to EnCase and FTK imager, including meta data. Under Linux, FreeBSD, NetBSD, OpenBSD, MacOS-X/Darwin
ewfacquirestream is part of the
libewf is a
library to access the Expert Witness Compression Format (EWF).
The options are as follows:
- the codepage of header section, options: ascii (default), windows-874, windows-932, windows-936, windows-949, windows-950, windows-1250, windows-1251, windows-1252, windows-1253, windows-1254, windows-1255, windows-1256, windows-1257 or windows-1258
- the number of sectors to read at once (per chunk), options: 16, 32, 64 (default), 128, 256, 512, 1024, 2048, 4096, 8192, 16384 or 32768
- the number of bytes to acquire
- specify the compression values as: level or method:level compression method options: deflate (default), bzip2 (bzip2 is only supported by EWF2 formats) compression level options: none (default), empty-block, fast or best
- the case number (default is case_number)
- calculate additional digest (hash) types besides md5, options: sha1, sha256
- the description (default is description)
- the examiner name (default is examiner_name)
- the evidence number (default is evidence_number)
- the EWF file format to write to, options: ftk, encase2, encase3, encase4,
encase5, encase6 (default), encase7, linen5, linen6, linen7, ewfx.
libewfdoes not support streamed writes for other EWF formats.
- shows this help
- logs acquiry errors and the digest (hash) to the log filename
- the media type, options: fixed (default), removable, optical, memory
- the media flags, options: logical, physical (default)
- the notes (default is notes)
- the offset to start to acquire (default is 0)
- the process buffer size (default is the chunk size)
- the number of bytes per sector (default is 512)
- quiet shows minimal status information
- swap byte pairs of the media data (from AB to BA) (use this for big to little endian conversion and vice versa)
- the segment file size in bytes (default is 1.4 GiB) (minimum is 1.0 MiB, maximum is 7.9 EiB for encase6 and encase7 format and 1.9 GiB for other formats)
- the target file (without extension) to write to (default is image)
- verbose output to stderr
- print version
- use the chunk data instead of the buffered read and write functions.
- the secondary target file (without extension) to write to
ewfacquirestream will read from stding
until it encounters a read error. On read error it will stop no error
information is stored in the EWF file(s).
Empty block compression detects blocks of sectors with entirely the same byte data and compresses them using the default compression level.
# ewfacquirestream -C 1 -D Floppy -E 1.1 -e 'John D.' -N 'Just a floppy in my system' -m removable -M logical -t floppy </dev/fd0 ewfacquirestream 20120805 Using the following acquiry parameters: Image path and filename: floppy.E01 Case number: 1 Description: Floppy Evidence number: 1.1 Examiner name: John D. Notes: Just a floppy in my system Media type: removable Volume type: logical EWF file format: EnCase 5 Compression method: deflate Compression level: none Acquiry start offet: 0 Number of bytes to acquire: 0 (until end of input) Evidence segment file size: 1.4 GiB (1572864000 bytes) Block size: 64 sectors Error granularity: 64 sectors Retries on read error: 2 Acquiry started at: Sun Aug 5 11:32:41 2012 This could take a while. Status: acquired 1.4 MiB (1474560 bytes) in 1 second(s) with 1 MiB/s (1474560 bytes/second). Acquiry completed at: Sun Aug 5 11:32:42 2012 Written: 1.4 MiB (1474560 bytes) in 1 second(s) with 1 MiB/s (1474560 bytes/second). MD5 hash calculated over data: ae1ce8f5ac079d3ee93f97fe3792bda3
DIAGNOSTICS¶Errors, verbose and debug output are printed to stderr when verbose output -v is enabled. Verbose and debug output are only printed when enabled at compilation.
BUGS¶Please report bugs of any kind to <firstname.lastname@example.org> or on the project website: http://code.google.com/p/libewf/
AUTHOR¶These man pages were written by Joachim Metz.
COPYRIGHT¶Copyright 2006-2014, Joachim Metz <email@example.com>.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
SEE ALSO¶ewfacquire(1), ewfexport(1), ewfinfo(1), ewfmount(1), ewfrecover(1), ewfverify(1)
|January 19, 2014||libewf|