2011/6/14 Johannes Becker <johannes.bec...@hrz.uni-giessen.de>: > Am Sonntag 12 Juni 2011 schrieb MAK: >> Hello, >> >> i have the problem that running "opensc-tool -w -a" gives immediately a >> timeout if no card is present in the reader. > ... > >> I am running opensc-0.12.0, pcsc-lite-1.7.2 and ccid-1.4.4 on a FreeBSD >> 8.2-RELEASE system. > > It's the same fault with other readers as well with > Debian stable amd64, > opensc-0.12.2-svn > libpcsclite1 1.5.5-4 > libccid 1.4.3-1 > > On the other hand waiting works on Windows. > Also waiting with the perl modules > Chipcard::PCSC > Chipcard::PCSC::Card > works on Linux.
It is a bug in OpenSC. Patch attached and also available at [1]. Martin, please pull my master into your repository. Bye [1] https://github.com/LudovicRousseau/OpenSC/commit/8936901e2b8fade5d9831b224f3313b7b3255133 -- Dr. Ludovic Rousseau
From 8936901e2b8fade5d9831b224f3313b7b3255133 Mon Sep 17 00:00:00 2001 From: Ludovic Rousseau <ludovic.rousseau+git...@gmail.com> Date: Tue, 14 Jun 2011 13:50:37 +0200 Subject: [PATCH 6/6] Correctly wait for card event The timeout parameter of SCardGetStatusChange() is a DWORD (unsigned int). An int timeout parameter was used instead. The problem happens on 64-bits architectures where DWORD is 64-bits long and int is only 32-bits long. The sign extension C mechanism transforms the PC/SC value INFINITE into -1 instead of 4294967295. See http://www.opensc-project.org/pipermail/opensc-devel/2011-June/016831.html "Kobil KAAN Advanced Reader, "waiting for card" timeout" --- src/libopensc/reader-pcsc.c | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-) diff --git a/src/libopensc/reader-pcsc.c b/src/libopensc/reader-pcsc.c index 1071e04..a42df46 100644 --- a/src/libopensc/reader-pcsc.c +++ b/src/libopensc/reader-pcsc.c @@ -1029,6 +1029,7 @@ static int pcsc_wait_for_event(sc_context_t *ctx, unsigned int event_mask, sc_re size_t i; unsigned int num_watch; int r = SC_ERROR_INTERNAL; + DWORD dwtimeout; SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_NORMAL); @@ -1167,10 +1168,12 @@ static int pcsc_wait_for_event(sc_context_t *ctx, unsigned int event_mask, sc_re /* Set the timeout if caller wants to time out */ if (timeout == -1) { - timeout = INFINITE; + dwtimeout = INFINITE; } + else + dwtimeout = timeout; - rv = gpriv->SCardGetStatusChange(gpriv->pcsc_wait_ctx, timeout, rgReaderStates, num_watch); + rv = gpriv->SCardGetStatusChange(gpriv->pcsc_wait_ctx, dwtimeout, rgReaderStates, num_watch); if (rv == (LONG) SCARD_E_CANCELLED) { /* C_Finalize was called, events don't matter */ -- 1.7.2.5
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