pcsc-spy - Man Page
A PC/SC spy command
Synopsis
pcsc-spy [-n|--nocolor] [-d|--diffable] [-h|--help] [-v|--version] [-t|--thread] [fifo_filename]
Description
pcsc-spy displays PC/SC calls of an application. It must be used with the libpcscspy.so.0 library.
To be able to spy the PC/SC layer, the application flow must be modified using LIBPCSCLITE_DELEGATE so that all PC/SC calls are redirected.
Options
- -d, --diffable
Remove the variable parts (like handler values) from the output so that two execution can be more easily compared.
- -h, --help
Display a short help text.
- -n, --nocolor
Disable the output colorization (if you want redirect the output in a file for example).
- -v, --version
Print the version of the pcsc-spy program plus a copyright, a list of authors.
- -t, --thread
Add a thread number before each line of log to identify the calls from the same threads.
Examples
We will use the LIBPCSCLITE_DELEGATE environment variable to load our spying library.
Example:
sh /usr/share/doc/libpcsclite-dev/setup_spy.sh export LIBPCSCLITE_DELEGATE=/lib/x86_64-linux-gnu/libpcscspy.so.0 LIBPCSCLITE_DELEGATE=/lib/x86_64-linux-gnu/libpcscspy.so.0 my_application
Starting the spy tool
pcsc-spy
If a command argument is passed we use it instead of the default ~/pcsc-spy FIFO file. It is then possible to record an execution log and use pcsc-spy multiple times on the same log.
To create the log file just do:
mkfifo ~/pcsc-spy cat ~/pcsc-spy > logfile
and run your PC/SC application.
Files
~/pcsc-spy FIFO file is used by libpcscspy.so.0 to send the raw log lines
See Also
Author
This manual page was written by Ludovic Rousseau <rousseau@free.fr>