A better hexdump

Related tags

Miscellaneous hxd
Overview

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huxdemp (aka hxd)

huxdemp is an advanced version of the venerable hexdump that uses colors, bolding, and other terminal formatting to distinguish between nul bytes, ASCII whitespace, UTF8-control characters, ASCII control characters, and normal printable bytes.

NOTE: This should be considered beta software. Expect a multitude of bugs and snakes, and count the directories in your $HOME after you use huxdemp.

Seeing is believing

hxd reading /dev/input/mouse hxd reading /dev/input/mouse hxd reading part of a PNG image hxd reading /dev/random hxd reading a snippet from The Silmarillion hxd reading some UTF8 text, demonstrating the -u flag

Features/Anti-features

  • No octal dumping (this might be added later).
  • "Highlights" bytes that "belong" to the same UTF8-encoded character.
  • Readable source, written in literate programming using a dialect of unu from RetroForth.
  • Ability to print characters in IBM's code page 437 (see screenshots).
  • Ability to print control characters using fancy Unicode glyphs (e.g. ␀ for NUL, ␌ for FF (form feed), etc).
  • Not written in Rust. (The horrors!)

Install

Requirements

  • A POSIX system. (Windows is not supported at present.)
  • scdoc (for building from source)
  • A C99 compiler and GNU Make (for building from source)

NOTE: If you are seeing garbled output on urxvt or other terminals, you may want to try building from source. A few bugs were fixed after 0.1.0 was released that only crops up on those terminals.

Download a binary tarball from the releases, unpack, and move the executable into your $PATH and the manpage (hxd.1) to someplace like /usr/local/share/man/man1/hxd.1.

Or, to build from source, clone (or download a tarball from the releases), make, and install:

$ cd huxdemp
$ make
    CCLD    unu
    UNU     main.c
    CCLD    hxd
    SCDOC  
$ sudo make install
[sudo] password for kiedtl:
$

As far as I am aware, there are no distributions that carry huxdemp in their repositories.

TODO

  • hexdump's *-n and -s option.
  • An option to change the order/format of the columns.
  • A $HXD_COLORS variable to change the display style of the ASCII/byte column.
  • A flag to display the ASCII column in bold.
  • A flag to "mark" the nth byte of the input.
  • Use pledge(2)/unveil(2) on OpenBSD.
  • Support Winbl^B^B^Kdows 10.

License

This project is licensed under the GPLv3 license, with the exception of utf8.c, which comes from termbox and is licensed under the MIT license.

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Comments
  • packing for gentoo

    packing for gentoo

    hello,

    you wrote a very cool program (with interesting source code btw) and i created a package for it in my overlay

    so if yo planned to include info about installing huxdemp in different distros you can include instruction for Gentoo:

    sudo eselect repository enable dm9pZCAq
sudo emerge --sync dm9pZCAq
sudo emerge sys-apps/huxdemp::dm9pZCAq
    opened by dm9pZCAq 1
Releases(1.0.0)

  • 1.0.0(Dec 7, 2021)

    v1.0.0

    huxdemp is now stable, and should be considered for the most part "done". More plugins may be added and huxdemp will recieve bugfixes, but new features are unlikely to be implemented.

    • The -f flag was added for column reordering.
    • The ASCII column can be split into left/right column.
    • The bytes column can be split into left/right column.
    • A Lua-based plugin system was added.
    • A chip8, ebcdic, and uxn plugins were added.
    • Some utf-8 related bugs were fixed.
    Source code(tar.gz)
    Source code(zip)
    huxd-FreeBSD-amd64-1.0.0.tar.xz(29.46 KB)
    huxd-Linux-armv6l-1.0.0.tar.xz(28.61 KB)
    huxd-Linux-x86_64-1.0.0.tar.xz(33.37 KB)

  • 0.2.1(Nov 26, 2021)

    (Amalgation release notes for 0.2.0 and 0.2.1)

    0.2.1

    Quick bugfix patch for 0.2.0, fixing some urgent issues that were overlooked.

    • Bump version (huxd -V still returned "0.1.0"!)
    • Fixed compile warnings on 32-bit platforms.
    • Made config parsing a bit more robust (errors are now properly given when an invalid color is passed).

    0.2.0

    Well! After some time away I was again able to focus on huxdemp.

    Most notably, the tool's abbreviation was renamed (hxd ⇒ huxd) to avoid naming clashes with HxD, a Windows hex editing tool that's been around longer then huxdemp. (Thanks to M. Hörz, HxD's author, for letting me know.)

    A bunch of new features have also been added, making huxdemp a more attractive alternative to existing tools.

    • The -s flag was added, which specifies an offset to read the input from.

    • The -n flag was added, which specifies a maximum number of bytes to be read from the input.

    • The -P flag and an auto-paging feature was added. huxdemp will now automatically pipe long outputs to less(1) (unless -P never is passed).

    • Most significantly, the HUXD_COLORS environment variable was added, which now allows the colors used to be modified at runtime (see the manpage for further details).

    • Fix invalid escape sequences being emitted, which broke huxdemp completely on non-xterm terminals.

    • Fix out of range error when -c flag is on and characters above 0x7F are encountered. (Thanks to @skeeto!)

    • Unu, the tool used to generate some source files from literate sources, now emits #line directives. This means that crash info (from valgrind or gdb) will now use the line numbers of the literate source files, not the generated files. This makes debugging a ton easier.

    Next up: a plugin system!

    Source code(tar.gz)
    Source code(zip)
    huxd-FreeBSD-amd64-0.2.1.tar.xz(10.82 KB)
    huxd-Linux-armv6l-0.2.1.tar.xz(10.22 KB)
    huxd-Linux-x86_64-0.2.1.tar.xz(22.42 KB)

  • 0.1.0(Feb 5, 2021)

Owner
LPTSTR
Changing the world, one utility at a time.
LPTSTR
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