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Top Forums UNIX for Advanced & Expert Users A hexdumper using echo only... Post 302931167 by wisecracker on Sunday 11th of January 2015 10:15:42 AM
Old 01-11-2015
Hi sea...

Aha, now I see what you are doing...

MY QUOTE:-
Quote:
LBNL the first display is a random file generated to show it works in binary mode and the second is a hexdump of itself.
Note that hexdump is there for comparison only...
hexdump inside the code is there purely to prove that the HEX created but the complex code is the same by comparing each value...

Android does NOT have the od, xxd or hexdump hex dumpers and hexdump inside this DEMO instance needs to be removed. Remember it is purely for comparison purposes.

As it stands it is purely a DEMO to show that binary can be read using what Android has as default...

As I said it IS SLOW but does what it says on the tin...

I only need to read a single byte for my usage and this works just fine.

Next is to make it pipe-able, have switches to display like hexdump -C filename ...

Dunno if any of this is possible for Android but I am willing to try... <wink>
 

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CD-READ(1)							   User Commands							CD-READ(1)

NAME
cd-read - manual page for cd-read version 0.83 SYNOPSIS
cd-read OPTION... Reads Information from a CD or CD-image. DESCRIPTION
-a, --access-mode=STRING Set CD control access mode -m, --mode=MODE-TYPE set CD-ROM read mode (audio, auto, m1f1, m1f2, m2mf1, m2f2) -d, --debug=INT Set debugging to LEVEL -x, --hexdump Show output as a hex dump. The default is a hex dump when output goes to stdout and no hex dump when output is to a file. -j, --just-hex Don't display printable chars on hex dump. The default is print chars too. --no-header Don't display header and copyright (for regression testing) --no-hexdump Don't show output as a hex dump. -s, --start=INT Set LBA to start reading from -e, --end=INT Set LBA to end reading from -n, --number=INT Set number of sectors to read -b, --bin-file[=FILE] set "bin" CD-ROM disk image file as source -c, --cue-file[=FILE] set "cue" CD-ROM disk image file as source -i, --input[=FILE] set source and determine if "bin" image or device -C, --cdrom-device[=DEVICE] set CD-ROM device as source -N, --nrg-file[=FILE] set Nero CD-ROM disk image file as source -t, --toc-file[=FILE] set "TOC" CD-ROM disk image file as source -o, --output-file=FILE Output blocks to file rather than give a hexdump. -V, --version display version and copyright information and exit Help options: -?, --help Show this help message --usage Display brief usage message AUTHOR
Rocky Bernstein <rocky@gnu.org> COPYRIGHT
Copyright (C) 2003, 2004, 2005, 2007, 2008, 2011 R. Bernstein This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. Have driver: GNU/Linux ioctl and MMC driver Have driver: cdrdao (TOC) disk image driver Have driver: bin/cuesheet disk image driver Have driver: Nero NRG disk image driver Default CD-ROM device: /dev/scd0 SEE ALSO
cd-info(1) for information about a CD; cd-drive(1) for CD-ROM characteristics; iso-read(1) for information about an ISO-9660 image. cd-read version 0.83 October 2011 CD-READ(1)
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