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Top Forums Shell Programming and Scripting Extract sequences of bytes from binary for differents blocks Post 302843766 by Ophiuchus on Thursday 15th of August 2013 12:52:59 AM
Old 08-15-2013
Hello,

I've helped several times in this forum before and I know if somebody wants to help, helps. If somebody ask here there is not a forum rule to make attemtps before posting, due that sometimes the people just don't know where to begin. I'm asking and requesting help here (not complete solution) because I don't know in Python or any other language.

I only have the idea to extract the byte sequences searching regular expressions because not always the sequences are in the same position, but I don't know
in which language would be easier, faster, better and how to begin.

I'm using Ubuntu or Windows, but I'm asking for help and suggestions in bash if it possible or in Perl, Python, C or any language to handle binaries and be able
to extract the byte sequences I mention.

Maybe if someone knows how to do it in any language, could give some examples to follow and continue by myself.

I posted before but now I ask thinking in another approach, but still searching the way to extract the info reading the binary directly
without converting to text.

Thanks in advance for any help.

Last edited by Ophiuchus; 08-15-2013 at 01:58 AM..
 

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XGETTEXT(1)								GNU							       XGETTEXT(1)

NAME
xgettext - extract gettext strings from source SYNOPSIS
xgettext [OPTION] [INPUTFILE]... DESCRIPTION
Extract translatable strings from given input files. Mandatory arguments to long options are mandatory for short options too. Similarly for optional arguments. Input file location: INPUTFILE ... input files -f, --files-from=FILE get list of input files from FILE -D, --directory=DIRECTORY add DIRECTORY to list for input files search If input file is -, standard input is read. Output file location: -d, --default-domain=NAME use NAME.po for output (instead of messages.po) -o, --output=FILE write output to specified file -p, --output-dir=DIR output files will be placed in directory DIR If output file is -, output is written to standard output. Choice of input file language: -L, --language=NAME recognise the specified language (C, C++, ObjectiveC, PO, Shell, Python, Lisp, EmacsLisp, librep, Scheme, Smalltalk, Java, JavaProp- erties, C#, awk, YCP, Tcl, Perl, PHP, GCC-source, NXStringTable, RST, Glade) -C, --c++ shorthand for --language=C++ By default the language is guessed depending on the input file name extension. Input file interpretation: --from-code=NAME encoding of input files (except for Python, Tcl, Glade) By default the input files are assumed to be in ASCII. Operation mode: -j, --join-existing join messages with existing file -x, --exclude-file=FILE.po entries from FILE.po are not extracted -cTAG, --add-comments=TAG place comment blocks starting with TAG and preceding keyword lines in output file -c, --add-comments place all comment blocks preceding keyword lines in output file Language specific options: -a, --extract-all extract all strings (only languages C, C++, ObjectiveC, Shell, Python, Lisp, EmacsLisp, librep, Scheme, Java, C#, awk, Tcl, Perl, PHP, GCC-source, Glade) -kWORD, --keyword=WORD look for WORD as an additional keyword -k, --keyword do not to use default keywords (only languages C, C++, ObjectiveC, Shell, Python, Lisp, EmacsLisp, librep, Scheme, Java, C#, awk, Tcl, Perl, PHP, GCC-source, Glade) --flag=WORD:ARG:FLAG additional flag for strings inside the argument number ARG of keyword WORD (only languages C, C++, ObjectiveC, Shell, Python, Lisp, EmacsLisp, librep, Scheme, Java, C#, awk, YCP, Tcl, Perl, PHP, GCC-source) -T, --trigraphs understand ANSI C trigraphs for input (only languages C, C++, ObjectiveC) --qt recognize Qt format strings (only language C++) --kde recognize KDE 4 format strings (only language C++) --boost recognize Boost format strings (only language C++) --debug more detailed formatstring recognition result Output details: --color use colors and other text attributes always --color=WHEN use colors and other text attributes if WHEN. WHEN may be 'always', 'never', 'auto', or 'html'. --style=STYLEFILE specify CSS style rule file for --color -e, --no-escape do not use C escapes in output (default) -E, --escape use C escapes in output, no extended chars --force-po write PO file even if empty -i, --indent write the .po file using indented style --no-location do not write '#: filename:line' lines -n, --add-location generate '#: filename:line' lines (default) --strict write out strict Uniforum conforming .po file --properties-output write out a Java .properties file --stringtable-output write out a NeXTstep/GNUstep .strings file -w, --width=NUMBER set output page width --no-wrap do not break long message lines, longer than the output page width, into several lines -s, --sort-output generate sorted output -F, --sort-by-file sort output by file location --omit-header don't write header with 'msgid ""' entry --copyright-holder=STRING set copyright holder in output --foreign-user omit FSF copyright in output for foreign user --package-name=PACKAGE set package name in output --package-version=VERSION set package version in output --msgid-bugs-address=EMAIL@ADDRESS set report address for msgid bugs -m[STRING], --msgstr-prefix[=STRING] use STRING or "" as prefix for msgstr values -M[STRING], --msgstr-suffix[=STRING] use STRING or "" as suffix for msgstr values Informative output: -h, --help display this help and exit -V, --version output version information and exit AUTHOR
Written by Ulrich Drepper. REPORTING BUGS
Report bugs to <bug-gnu-gettext@gnu.org>. COPYRIGHT
Copyright (C) 1995-1998, 2000-2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
The full documentation for xgettext is maintained as a Texinfo manual. If the info and xgettext programs are properly installed at your site, the command info xgettext should give you access to the complete manual. GNU gettext-tools 0.18.2 March 2013 XGETTEXT(1)
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