[Pcsclite-git-commit] [PCSC] 04/04: Initialize readerStates[].eventCounter to 0

[Ludovic Rousseau]

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rousseau pushed a commit to branch master
in repository PCSC.

commit adacc765364284840762da3867e9cab7e3eb2b92
Author: Ludovic Rousseau <ludovic.rousseau at gmail.com>
Date:   Fri Jun 26 15:17:35 2015 +0200

    Initialize readerStates[].eventCounter to 0
    
    The field readerStates[].eventCounter was not initialized. It was not a
    real problem since the exact value is not used, only a value increment
    is used.
    
    The only problematic case was if readerStates[].eventCounter value is
    greater than 2^16. In that case the function SCardGetStatusChange() is
    no more able to detect card movement and would return immediatly.
    
    See also the previous patch.
    
    Thanks to Alan for the bug report.
---
 src/readerfactory.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/readerfactory.c b/src/readerfactory.c
index ba4acec..fc5b5ff 100644
--- a/src/readerfactory.c
+++ b/src/readerfactory.c
@@ -144,6 +144,7 @@ LONG RFAllocateReaderSpace(unsigned int customMaxReaderHandles)
 		/* Zero out each value in the struct */
 		memset(readerStates[i].readerName, 0, MAX_READERNAME);
 		memset(readerStates[i].cardAtr, 0, MAX_ATR_SIZE);
+		readerStates[i].eventCounter = 0;
 		readerStates[i].readerState = 0;
 		readerStates[i].readerSharing = 0;
 		readerStates[i].cardAtrLength = READER_NOT_INITIALIZED;

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