Bad WX multiline data, still. Re: [Xastir] Someone is sending out bad data...

[Tom Russo]

On Sun, Aug 12, 2007 at 10:26:51AM -0500, we recorded a bogon-computron collision of the <r.polivka at sbcglobal.net> flavor, containing:
>  This may be a repeat of a previous issue but xastir is spewing this out 
>  today ...
> 
>  extract_multipoints: invalid value in (filtered) "Center of MaxConcern }d0df 
>  e e e XKe {CEbAH": 24,-179
>  extract_multipoints: invalid value in (filtered) "Center of MaxConcern }d0df 
>  e e e XKe {CEbAH": 24,-179
>  extract_multipoints: invalid value in (filtered) "Center of MaxConcern }d0df 
>  e e e XKe {CEbAH": 24,-179
>  extract_multipoints: invalid value in (filtered) "Center of MaxConcern }d0df 
>  e e e XKe {CEbAH": 24,-179
> 
>  Unfortunately, this is all I am getting out of it. Now, what debug level 
>  should I turn on to find out where the bogus data is coming from?

This is a continuing issue, and is getting more and more common lately.

The issue is that these WXSVR objects are getting sent out with invalid data
(at least according to the published wxsvr.net multiline protocol) that 
xastir is choking on (because some coordinates are coming up out of range).

Gerry said he'd look into it, but I don't think he got back to us --- the
lists went down not long after this got reported here.

I saw the first of them from my local NWS station today --- until today I'd
only seen them in APRS-IS feeds from more distant stations.  Here's a packet
that I got today yanked from my TNC log file:

# 1188253815  Mon Aug 27 16:30:15 MDT 2007
K5MJE-2>APJI23,CEDRO,RAVEN*,WIDE3-1:}ABQSVR>APRS,TCPIP,K5MJE-2*:;ABQS2131z_272230z3458.80NS09553.40WWCenter of MaxConcern }d0dVVV‚S‚S†U„V„¢V{RLVAK

There are non-printable characters in there that may or may not make it through
in this email.  Gerry, wassup with this?  Are you aware of a change to the
WXSVR multiline protocol that we need to code up?  The multiline protocol
documentation page at 
http://home.earthlink.net/~kg5qd/APRS_Multiline_Protocol.html
is not responding anymore, and the cached version on google just shows
the protocol we are already supporting.

-- 
Tom Russo    KM5VY   SAR502   DM64ux          http://www.swcp.com/~russo/
Tijeras, NM  QRPL#1592 K2#398  SOC#236 AHTB#1 http://kevan.org/brain.cgi?DDTNM
"And, isn't sanity really just a one-trick pony anyway? I mean all you get is
 one trick, rational thinking, but when you're good and crazy, oooh, oooh,
 oooh, the sky is the limit!"  --- The Tick