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Re: [Muscle] "Buffer length probably incorrect" warning messages from pcscd in Mac OS X's Console
From: Chaskiel M Grundman (cg2v
andrew.cmu.edu)
Date: Wed Jul 09 2003 - 18:32:02 CDT
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--On Wednesday, July 09, 2003 12:09:30 -0700 Wan-Teh Chang
<wtcnetscape.com> wrote:
> Buffer length probably incorrect -- help len_out=200 write_bytes=195
> buffer_out[4]=0!
The egate driver has to parse the APDUs it transfers to figure out the size
of the "data" part of the PDU, and whether or not there will be response
data. The parsing is done somewhat crudely, and can get confused.
In this case, however, (some of) the APDUs appear to be bogus. The data
length in the APDU header is 0, but there is a payload. Depending on how
the card responds to the command, the driver will either send the payload
to the card or drop it on the floor. I suspect that the card never accepts
the payload and responds with a 63XX SW.
If your application is otherwise working, you can ignore the messages.
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