[Guy Harris <guy@xxxxxxxxxxxx>]

On Feb 9, 2004, at 11:57 AM, Peter J. Creath wrote:

> This is a sister utility to value_string.[ch] that I whipped up to 
> make dissecting bitfields a bit easier.  It should probably live in 
> epan/ if folks think it's worth adding to the tree.  I've only 
> attached the new .c/.h files (and didn't include the modified 
> makefiles) so that people can look it over and see if it's even of 
> interest.
>
> Basically, it lets you generate both single-line and multi-line (tree) 
> representations of bitfields by defining a table.  It could probably 
> be used to drastically simplify dissect_xdlc_control in xdlc.c.

You might want to check out the current CVS version of 
"dissect_xdlc_control()" - it now takes, as an argument, a structure 
containing hf_ values for named fields for the subfields of the control 
field, so it no longer directly calls the routines to format bitfields.

Your changes might still be useful for dissectors that have bitfields 
that aren't named fields, however.