ewfacquirestream						       LOCAL							  ewfacquirestream

NAME

     ewfacquirestream -- acquires data in the EWF format from stdin

SYNOPSIS

     ewfacquirestream [-A codepage] [-b amount_of_sectors] [-B amount_of_bytes] [-c compression_type] [-C case_number] [-d digest_type]
		      [-D description] [-e examiner_name] [-E evidence_number] [-f format] [-l log_filename] [-m media_type] [-M media_flags]
		      [-N notes] [-o offset] [-p process_buffer_size] [-S segment_file_size] [-t target] [-2 secondary_target] [-hqsvVw]

DESCRIPTION

     ewfacquirestream is a utility to acquire media data from stdin and store it in EWF format (Expert Witness Format).  ewfacquirestream acquires
     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 package.  libewf is a library to support the Expert Witness Compression Format (EWF).  libewf supports
     both the SMART format (EWF-S01) and the EnCase format (EWF-E01).  libewf currently does not support the Logical Volume format (EWF-L01). EWF-
     X is an expirimental format intended for testing purposes to enhance the EWF format.  libewf allows you to read and write media data in the
     EWF format.

     The options are as follows:

     -A codepage
	     the codepage of header section, options: ascii (default), windows-874, windows-1250, windows-1251, windows-1252, windows-1253, win-
	     dows-1254, windows-1255, windows-1256, windows-1257, windows-1258

     -b amount_of_sectors
	     the amount of sectors to read at once (per chunk), options: 64 (default), 128, 256, 512, 1024, 2048, 4096, 8192, 16384 or 32768

     -B amount_of_bytes
	     the amount of bytes to acquire

     -c compression_type
	     the compression type, options: none (default), empty-block, fast, best

     -C case_number
	     the case number (default is case_number)

     -d digest_type
	     calculate additional digest (hash) types besides md5, options: sha1

     -D description
	     the description (default is description)

     -e examiner_name
	     the examiner name (default is examiner_name)

     -E evidence_number
	     the evidence number (default is evidence_number)

     -f format
	     the EWF file format to write to, options: ftk, encase2, encase3, encase4, encase5, encase6 (default), linen5, linen6, ewfx.  libewf
	     does not support streamed writes for other EWF formats.

     -h      shows this help

     -l log_filename
	     logs acquiry errors and the digest (hash) to the log filename

     -m media_type
	     the media type, options: fixed (default), removable, optical, memory

     -M media_flags
	     the media flags, options: logical, physical (default)

     -N notes
	     the notes (default is notes)

     -o offset
	     the offset to start to acquire (default is 0)

     -p process_buffer_size
	     the process buffer size (default is the chunk size)

     -q      quiet shows no status information

     -s      swap byte pairs of the media data (from AB to BA) (use this for big to little endian conversion and vice versa)

     -S segment_file_size
	     the segment file size in bytes (default is 1.4 GiB) (minimum is 1.0 MiB, maximum is 7.9 EiB for encase6 format and 1.9 GiB for other
	     formats)

     -t target
	     the target file (without extension) to write to (default is image)

     -v      verbose output to stderr

     -V      print version

     -w      wipe sectors on read error (mimic EnCase like behavior)

     -2 secondary_target
	     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.

ENVIRONMENT

     None

FILES

     None

EXAMPLES

     # ewfacquirestream -C 1 -D Floppy -E 1.1 -e 'John D.' -N 'Just a floppy in my system' -m removable -M physical -t floppy </dev/fd0
     ewfacquirestream 20090229 (libewf 20090229, libuna 20090124, zlib 1.2.3, libcrypto 0.9.8g, libuuid)

     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:		     physical
     Compression used:		     none
     EWF file format:		     EnCase 5
     Acquiry start offet:	     0
     Amount 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
     Wipe sectors on read error:     no

     Acquiry started at: Sat Feb 28 11:32:41 2009

     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: Sat Feb 28 11:32:42 2009

     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 <forensics@hoffmannbv.nl> or on the project website: http://libewf.sourceforge.net/

AUTHOR

     These man pages were written by Joachim Metz.

COPYRIGHT

     Copyright 2006-2009 Joachim Metz, Hoffmann Investigations <forensics@hoffmannbv.nl> and contributors.

     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), ewfverify(1)

libewf								 October 17, 2009							    libewf