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.\" ========================================================================
.\"
.IX Title "PCSC-SPY 1"
.TH PCSC-SPY 1 "2012-02-01" "pcsc-lite 1.8.4" "PC/SC lite"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
pcsc\-spy \- A PC/SC spy command
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
pcsc-spy [\fB\-n\fR|\fB\-\-nocolor\fR] [\fB\-d\fR|\fB\-\-diffable\fR] [\fB\-h\fR|\fB\-\-help\fR]
[\fIfifo_filename\fR]
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
pcsc-spy displays \s-1PC/SC\s0 calls of an application. It must be used with
the \fIlibpcscspy.so\fR library.
.PP
To be able to spy the \s-1PC/SC\s0 layer, the application flow must be
modified so that all \s-1PC/SC\s0 calls are redirected. Two options are
available:
.IP "\- the application is linked with \fIlibpcsclite.so.1\fR" 4
.IX Item "- the application is linked with libpcsclite.so.1"
.PD 0
.IP "\- the application loads the \fIlibpcsclite.so.1\fR library using \fIdlopen\fR\|(3)" 4
.IX Item "- the application loads the libpcsclite.so.1 library using dlopen"
.PD
.SH "OPTIONS"
.IX Header "OPTIONS"
.IP "\fB\-d\fR, \fB\-\-diffable\fR" 4
.IX Item "-d, --diffable"
Demove the variable parts (like handler values) from the output so that
two execution can be more easily compared.
.IP "\fB\-h\fR, \fB\-\-help\fR" 4
.IX Item "-h, --help"
Display a short help text.
.IP "\fB\-n\fR, \fB\-\-nocolor\fR" 4
.IX Item "-n, --nocolor"
Disable the output colorization (if you want redirect the output in a
file for example).
.IP "\fB\-v\fR, \fB\-\-version\fR" 4
.IX Item "-v, --version"
Print the version of the \fIpcsc-spy\fR program plus a copyright, a list of
authors.
.SH "EXAMPLES"
.IX Header "EXAMPLES"
.SS "Applications linked with libpcsclite.so.1"
.IX Subsection "Applications linked with libpcsclite.so.1"
We will use the standard \s-1LD_PRELOAD\s0 loader option to load our spying
library.
.PP
Example:
 LD_PRELOAD=/usr/lib/libpcscspy.so opensc-tool \-a
.SS "Application loading libpcsclite.so.1"
.IX Subsection "Application loading libpcsclite.so.1"
This is the case for the \s-1PC/SC\s0 wrappers like pyscard (for Python) and
pcsc-perl (for Perl). The \s-1LD_PRELOAD\s0 mechanism can't be used. Instead
we replace the \fIlibpcsclite.so.1\fR library by the spying one.
.PP
You may use \fIinstall_spy.sh\fR and \fIuninstall_spy.sh\fR to install and
uninstall the spying library.
.PP
Using the spying library without \fIpcsc-spy\fR is not a problem but has
side effects:
.PP
\&\- a line \*(L"libpcsclite_nospy.so.1: cannot open shared object file:
No such file or directory\*(R" will be displayed
.PP
\&\- some \s-1CPU\s0 time will be lost because of the \s-1PC/SC\s0 calls redirection
.SS "Starting the spy tool"
.IX Subsection "Starting the spy tool"
.Vb 1
\& pcsc\-spy
.Ve
.PP
If a command argument is passed we use it instead of the default
\&\fI~/pcsc\-spy\fR \s-1FIFO\s0 file. It is then possible to record an execution log
and use pcsc-spy multiple times on the same log.
.PP
To create the log file just do:
.PP
.Vb 2
\& mkfifo ~/pcsc\-spy
\& cat ~/pcsc\-spy > logfile
.Ve
.PP
and run your \s-1PC/SC\s0 application.
.SS "Mac \s-1OS\s0 X"
.IX Subsection "Mac OS X"
The installation is not automatic. In the pcsc\-lite/src/spy directory do:
 make framework
.PP
Then copy the \s-1PCSC\s0.framework directory in /tmp
 cp \-a \s-1PCSC\s0.framework /tmp
.PP
Copy the official \s-1PCSC\s0.framework (binary only) in /tmp
 cp /System/Library/Frameworks/PCSC.framework/PCSC /tmp
.PP
Run the application to debug as:
 DYLD_FRAMEWORK_PATH=/tmp pcsctest
.SH "FILES"
.IX Header "FILES"
\&\fI~/pcsc\-spy\fR \s-1FIFO\s0 file is used by \fIlibpcsclite.so.1\fR to send the raw
log lines
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fIpcscd\fR\|(8)
.SH "AUTHOR"
.IX Header "AUTHOR"
This manual page was written by Ludovic Rousseau <rousseau@free.fr>