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.
.Dd March 3, 2012
.Dt HDNG 1
.Os "network reverse engineering tools"
.Sh NAME
.Nm hdng
.Nd a hex dumper for the next generation
.
.Sh SYNOPSIS
.Nm hdng
.Oo Fl h | Fl v Oc
.Nm hdng
.Op Fl oxsg
.Op Fl w Ar width
.Op Ar file
.Nm hdng
.Op Fl X | Fl G
.Op Ar file
.
.Sh DESCRIPTION
The basic concept for this utility is to emulate the base functionality of a hex
dumper as found in bsdmainutils while providing better representation of the
data. A special character set is used so that one might better observe patterns
in the data. Additionally, the three areas of the hexdump (offsets, hexits,
glyphs) can be turned off and the width of data represented in each line of data
can be changed.
.
.Sh USAGE
With a file specified
.D1 Nm hdng Pa data.bin
.Pp
As a filter
.D1 ... | Nm hdng | ...
.
.Sh OPTIONS
A summary of the options supported by
.Nm
is included below.
.Bl -tag -width -Ds
.It Fl h
usage information
.It Fl v
the program's version
.It Fl o
do not display offsets, including the total byte count
.It Fl x
do not display hexits
.It Fl s
do not abbreviate redundant data
.It Fl g
do not display glyphs
.It Fl w Ar width
the
.Em width
of data to represent on each line of output
.It Ar file
the file to be dumped
.El
.
.Ss Special Modes
The following flags are mutually exclusive. When specified,
.Nm
ignores all other flags.
.Bl -tag -width Ds
.It Fl X
turns on continuous
.Em hexdump
mode, which overrides all other options
.It Fl G
turns on continuous
.Em glyphdump
mode, which overrides all other options
.El
.
.Sh SEE ALSO
.Xr unhex 1 ,
.Xr repr 1 ,
.Xr xor 1
.
.Sh AUTHORS
.An Zephyr Aq Ad zephyr@dirtbags.net ,
.An pi-rho Aq Ad pi-rho@tyr.cx