(mm) Hex and octal dumper
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hod v1.7
(Hexadecimal and Octal data dumper)
by
Muhammad A Muquit
Released: Jul-17-1995
Last Updated (ChangeLog): May-13-2012

Hod is a nice little hexadecimal and octal data dumper. Originally I wrote it because I didn't like the ugly output of od. For the things I do for living, this little program is Indispensable. You might find it useful as well. 

$ hod -h
 hod v1.7
 http://www.muquit.com/

 usage: ../hod [options] 
 Where the options are:
  -v      : show version information
  -h      : show this help
  -i      : output C header file
  -o      : dump in octal
  -8      : show as block of 8 bytes
  -x str  : convert a hex input to decimal
  -d      : show offsets in decimal
  -s      : show identical output lines
  -r      : reverse hod hexdump to binary
  -w      : reverse regular hex bytes to binary

 If no filename specified, it will read from stdin

 Example:
 $ hod file
 $ hod < file
 $ cat file | hod
 $ cat file | hod -
 $ hod < file 
 $ hod -o file
 $ echo "hello" | hod
 $ echo -n "hello" | hod
 $ hod -x 1c0
 1c0 : 448
 $ echo "0a 01 ff ef 0b" | hod -w > bin.bin
 $ hod bin.bin | hod -r > bin_again.bin

Note: -r and -w works with hexadecimal only.

Example (hex dump)

$ hod foo.bin
          0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f   0123456789abcdef
       0: 0c d6 9a aa 49 43 63 c2 d4 ce 6d 5a 75 e0 7f da  ....ICc...mZu...
      10: aa 9c 9a 69 5b 8d 1e 2a fd 32 34 b5 b1 2e 57 b7  ...i[..*.24...W.
      20: 20 6e 41 c3 dc 90 fc 4c ef 88 d7 22 f4 77 fb 0c   nA....L...".w..
      30: a9 fd 20 a7 b4 b5 9b 9b f3 f0 90 2c ca c9 73 ad  .. ........,..s.
      40: b3 da 6d 5a f7 e3 af 4d df 35 2e 7c 53 54 d7 4e  ..mZ...M.5.|ST.N
      50: 5d d7 74 ec ea ef b5 ff 8d 61 ef 4f 59 e2 51 50  ].t......a.OY.QP
      60: 39 b8 cd e6 13 3d ee dc f1 dd 33 b6 9e 5b f1 ca  9....=....3..[..
      70: 88 1a 2f b6 ea d9 2b 3b 7f c5 07 af 67 2f 5b d6  ../...+;....g/[.
      80: d4 f9 69 95 6a c7 8a a0 39 2a 7e 70 fe 1b 40 f4  ..i.j...9*~p..@.
      90: 06 3d 86 10 2e 00                                .=....          


To see the offset in decimal:
$ hod -d foo.bin
          0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f   0123456789abcdef
       0: 0c d6 9a aa 49 43 63 c2 d4 ce 6d 5a 75 e0 7f da  ....ICc...mZu...
      16: aa 9c 9a 69 5b 8d 1e 2a fd 32 34 b5 b1 2e 57 b7  ...i[..*.24...W.
      32: 20 6e 41 c3 dc 90 fc 4c ef 88 d7 22 f4 77 fb 0c   nA....L...".w..
      48: a9 fd 20 a7 b4 b5 9b 9b f3 f0 90 2c ca c9 73 ad  .. ........,..s.
      64: b3 da 6d 5a f7 e3 af 4d df 35 2e 7c 53 54 d7 4e  ..mZ...M.5.|ST.N
      80: 5d d7 74 ec ea ef b5 ff 8d 61 ef 4f 59 e2 51 50  ].t......a.OY.QP
      96: 39 b8 cd e6 13 3d ee dc f1 dd 33 b6 9e 5b f1 ca  9....=....3..[..
     112: 88 1a 2f b6 ea d9 2b 3b 7f c5 07 af 67 2f 5b d6  ../...+;....g/[.
     128: d4 f9 69 95 6a c7 8a a0 39 2a 7e 70 fe 1b 40 f4  ..i.j...9*~p..@.
     144: 06 3d 86 10 2e 00                                .=....          

$ hod -o README
          0   1   2   3   4   5   6   7    01234567
       0: 014 326 232 252 111 103 143 302  ....ICc.
      10: 324 316 155 132 165 340 177 332  ..mZu...
      20: 252 234 232 151 133 215 036 052  ...i[..*
      30: 375 062 064 265 261 056 127 267  .24...W.
      40: 040 156 101 303 334 220 374 114   nA....L
      50: 357 210 327 042 364 167 373 014  ...".w..
      60: 251 375 040 247 264 265 233 233  .. .....
      70: 363 360 220 054 312 311 163 255  ...,..s.
     100: 263 332 155 132 367 343 257 115  ..mZ...M
     110: 337 065 056 174 123 124 327 116  .5.|ST.N
     120: 135 327 164 354 352 357 265 377  ].t.....
     130: 215 141 357 117 131 342 121 120  .a.OY.QP
     140: 071 270 315 346 023 075 356 334  9....=..
     150: 361 335 063 266 236 133 361 312  ..3..[..
     160: 210 032 057 266 352 331 053 073  ../...+;
     170: 177 305 007 257 147 057 133 326  ....g/[.
     200: 324 371 151 225 152 307 212 240  ..i.j...
     210: 071 052 176 160 376 033 100 364  9*~p..@.
     220: 006 075 206 020 056 000          .=....  

$ hod x.db
          0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f   0123456789abcdef
       0: 00 06 15 61 00 00 00 02 00 00 04 d2 00 00 10 00  ...a............
      10: 00 00 00 0c 00 00 01 00 00 00 01 00 00 00 00 08  ................
      20: 00 00 00 01 00 00 00 02 00 00 00 01 00 00 00 03  ................
      30: 00 00 00 01 00 01 00 00 00 00 00 02 00 00 00 01  ................
      40: 95 6e 7d e3 00 00 00 00 00 00 00 02 00 00 00 02  .n}.............
      50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
       *
      c0: 00 00 00 00 08 01 00 00 00 00 00 00 00 00 00 00  ................
      d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
       *
    1000: 04 00 f9 0f f8 0f ed 0f dd 0f cf 0f dd 0f ff ff  ................
    1010: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................
       *
    1fd0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff 27 27  ..............''
    1fe0: 9b 65 b7 4b b4 fc 90 2e db 8c 11 f4 6c 67 6c 6f  .e.K........lglo
    1ff0: 62 61 6c 2d 73 61 6c 74 03 56 65 72 73 69 6f 6e  bal-salt.Version
    2000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
       *
    3000: fd ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................
    3010: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................
       *
Here, * indicates identical lines. To show identical lines use the flag -s

 $ hod -i square.gif > square.h
 $ cat square.h
   /*
    ** This file is created by hod 1.7 by running:
    **  hod -i square.gif
    ** on Sun May 13 14:44:25 2012
    ** hod is a free software available from: http://www.muquit.com/
    */

    #ifndef square_gif_H
    #define square_gif_H 1

    const unsigned char square_gif[]=
    {
    0x47,0x49,0x46,0x38,0x39,0x61,0x10,0x00,0x10,0x00,0xf3,0x00,0x00,0x00,0x00,
    0x00,0x10,0x0f,0x0e,0x20,0x1e,0x1b,0x30,0x2d,0x29,0x3f,0x3b,0x36,0x4f,0x4a,
    0x44,0x5f,0x59,0x52,0x6f,0x68,0x5f,0x7f,0x77,0x6d,0x8f,0x86,0x7a,0x9f,0x95,
    0x88,0xaf,0xa4,0x96,0xbe,0xb2,0xa3,0xce,0xc1,0xb1,0xde,0xd0,0xbe,0xee,0xdf,
    0xcc,0x21,0xf9,0x04,0x00,0x00,0x00,0x00,0x00,0x2c,0x00,0x00,0x00,0x00,0x10,
    0x00,0x10,0x00,0x00,0x04,0x4e,0xf0,0xc9,0x49,0xeb,0x73,0x38,0xeb,0xed,0x9a,
    0xff,0x60,0xd8,0x30,0x64,0x69,0x9e,0xcc,0xa2,0xae,0x6c,0xbb,0x28,0x70,0x2c,
    0xcf,0x4a,0x62,0xdf,0x78,0x9e,0x20,0x7c,0xef,0xff,0x88,0x83,0x70,0x48,0x2c,
    0x1e,0x0c,0xc8,0xa4,0x72,0x69,0x28,0x38,0x9f,0xd0,0x68,0x81,0x40,0xad,0x5a,
    0xaf,0x84,0x81,0x76,0xcb,0xed,0x0e,0x04,0xe0,0xb0,0x78,0x2c,0x08,0x98,0xcf,
    0xe8,0x74,0x00,0xc0,0x6e,0xbb,0xdf,0x80,0x08,0x00,0x3b,
    };
    const unsigned int square_gif_len=161;

    #endif /* square_gif_H */

Sometimes you need to find out the offset in a file. Use the -x flag to convert a hex number to decimal. For example, in the hexdump above, 

    $ hod -x 40
    40: 64
The offset it at 64 bytes. If you add 2 bytes to it, it's the size of the file. Or you can use the flag -d to show the offset in decimal (available in v1.5+).

Download

Source
File: hod1.7.tar.gz
Size: 16132 bytes
MD5 Checksum: 570760b6ed5a845b56d0051d86a5c86e
Last updated: May-13-2012

Debian binary package
File: hod_1.7-ubuntu_i386.deb
Size: 10730 bytes
MD5 Checksum: 8d30163f468cfc0fb16fd52bc5a39dc6
Last updated: May-13-2012

To install the package, type: 

    sudo dpkg -i hod_1.7-ubuntu_i386.deb
To remove the package, type: 
    sudo dpkg -r hod

Compiled binary for MS Windows
File: hod.exe.zip
Size: 40852 bytes
MD5 Checksum: 6fe706b85bb18e9b8cb71810b22a0ea8
Last updated: May-13-2012

Compiled binary (1.6) for SimpleTech SimpleShare NAS
File: hod_ss
Size: 14148 bytes
MD5 Checksum: fcd47c42e7ab772af7c6621fc37990f6
Last updated: Jun-08-2007

Compile/Install

 In Linux/Unix:
  $ make clean
  $ make
  # make install
or
  # sudo make install

If you are on Ubundu/Debian, you can install the binary from supplied debian package as follows:

To install the package, type: 

    sudo dpkg -i hod_1.7-ubuntu_i386.deb
To remove the package, type: 
    sudo dpkg -r hod

ChangeLog
    v1.7
  • Added flag -i to create C header file. Added man page and install target.
    (Apr-04-2012)
  • Can create debian binary package. Created man page.
    (May-13-2012)

    v1.6

  • In windows under cygin stdout was not binary, so reverse hexdump was getting corrupted. Thanks to Sebastien Trottier.
    (Jun-25-2006)

    v1.5

  • In Windows files were opened in text mode, which caused truncated dump sometimes. Thanks to Alec Devlin for reporting the bug.
    (Sep-06-2004).

  • A new flag -d is added to show the offset in decimal.
    (Sep-06-2004)

    v1.4

  • Added flag -r (reverse hex dump to binary) and -w (reverse hex bytes to binary).
    (Sep-13-2003)

    v1.3

  • Added flag -s to show identical lines. Default is not to show identical lines. Thanks to Soewono Effendi for adding this feature and making the program faster.
    (Mar-11-2003)

    v1.2

  • Can read from stdin. Added flags -x, -8
    (Feb-07-2003)

URL of this page: http://www.muquit.com/muquit/software/hod/hod.html

back Page updated: Sun May 13 19:53:45 2012 GMT   Copyright © 2012 muquit@muquit.com.