02-28-2013
Kind of reverse engineering
Hi everyone,
I'm a linux novice , in a training purpose i have to reconstruct under windows an application running under fedora 14, the application communicates with an STB device through RS232 in a first time and then through ethernet for firmware loading purpose.
All what i know is how to run the application then it shows some informations as "plug the RS232 connecter, restart the STB... " then if done it proceed to send files through RS232 then it reboot the device then it loads other files through ethernet
What i need is to interpret how it communicates with the device, what commands it sends to the device and what it recieves so i can develop my own application in windows, a sort of reverse engineering.
Can you guys help me please?
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LEARN ABOUT CENTOS
utmpdump
UTMPDUMP(1) System Administration UTMPDUMP(1)
NAME
utmpdump - dump UTMP and WTMP files in raw format
SYNOPSIS
utmpdump [-frh] [ filename ]
DESCRIPTION
utmpdump is a simple program to dump UTMP and WTMP files in raw format, so they can be examined. utmpdump eads from stdin unless a file-
name is passed.
OPTIONS
-f, --follow
Output appended data as the file grows.
-r, --reverse
Undump, write back edited login information into utmp or wtmp files.
-h, --help
Print a help text and exit.
-V, --version
Output version information and exit.
NOTES
utmpdump can be useful in cases of corrupted utmp or wtmp entries. It can dump out utmp/wtmp to an ASCII file, then that file can be
edited to remove bogus entries and reintegrated, using
utmpdump -r < ascii_file > wtmp
but be warned as utmpdump was written for debugging purpose only.
BUGS
You may not use the option -r as the format for the utmp/wtmp files strongly depends on the input format. This tool was not written for
normal use but for debugging.
AUTHOR
Michael Krapp
SEE ALSO
last(1), w(1), who(1), utmp(5)
AVAILABILITY
The utmpdump command is part of the util-linux package and is available from Linux Kernel Archive <ftp://ftp.kernel.org/pub/linux/utils
/util-linux/>.
util-linux July 2012 UTMPDUMP(1)