Re: BUGs into libax25

["Mike McCarthy, W1NR" <lists@xxxxxxxx>]

As I recall, there is a limit to the size of a callsign in the AX.25 
protocol specification.  Will changing it create an incompatibility with 
standard TNC protocol stacks?

Mike, W1NR


Bernard Pidoux wrote:
> Hi All,
>
> I found a number of BUGs into libax25 that may affect nearly ALL AX25 
> applications for it is in ax25_aton_entry() function that is used to 
> translate a callsign into AX25 format.
> Programs like kissattach, listen, ax25ipd, FPAC, xfbbd are concerned.
>
> The code would return an error with 6 letters callsigns.
>
>
> The second set of errors is in /proc/ax25/ timers format description.
> since timers are now in millisec, they require a larger storage size.
> This results in using unsigned long integers rather than unsigned short 
> integers.
>
> Ax25-tools and ax25-apps must be recompiled after recompilation and 
> installation of this new libax25 version.
> FPAC and LinuxFBB also.
>
> I patched my own source of libax25 and uploaded it here :
>
> http://f6bvp.free.fr/logiciels/ax25/libax25-0.0.11.5src_f6bvp.tgz
>
> Here is the new ChangeLog entry :
>
> libax25 0.0.11.5
>         * BUG in axutils.c
>           function ax25_aton_entry() was only testing 5 callsign
>           characters.
>           A lot of ax25-tools and AX25 applications using this library
>           function, including FPAC, could have problems with 6 letters
>           callsigns. Corrected.
>
>         * BUG in proc_ax25 structure timers members size declared in
>           procutils.h. Since in kernel 2.6 the timers are now in 
> milliseconds,
>           they need more place to be saved (unsigned short --> unsigned 
> long).
>         * corrected, together with functions reading proc files in 
> procutils.c.
>
>  -- Bernard Pidoux <f6bvp@xxxxxxxxx>  Jun 1 2008
>
>
> 73 de bernard, f6bvp
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