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Author SHA1 Message Date
Olliver Schinagl e1a25a8203 nfc-mfclassic: Add option to specify key 
The nfc-mfclassic utility will pick a seemingly random (the libnfc
default which seems to be the lowest UID). With the new (u|U) options
it is now possible to force a UID and thus write a specific tag, which
can be very useful if there are more then one tag visible.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
 2016-05-11 09:38:39 +02:00
Olliver Schinagl 898f3a4d2f nfc-mfclassic: check argc < 4 only once 
Currently the check on argc is done twice, once in each if branch. This
is silly and we can just check once and fail right away.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
 2016-05-11 09:38:39 +02:00