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/*
utils.c:
Copyright (C) 2003-2004 Ludovic Rousseau
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
* $Id: utils.c 2974 2008-05-28 18:32:52Z rousseau $
*/
#include <pcsclite.h>
#include "ccid.h"
#include "defs.h"
#include "ccid_ifdhandler.h"
#include "utils.h"
#include "debug.h"
int ReaderIndex[CCID_DRIVER_MAX_READERS];
void InitReaderIndex(void)
{
int i;
for (i=0; i<CCID_DRIVER_MAX_READERS; i++)
ReaderIndex[i] = -1;
} /* InitReaderIndex */
int GetNewReaderIndex(const int Lun)
{
int i;
/* check that Lun is NOT already used */
for (i=0; i<CCID_DRIVER_MAX_READERS; i++)
if (Lun == ReaderIndex[i])
break;
if (i < CCID_DRIVER_MAX_READERS)
{
DEBUG_CRITICAL2("Lun: %d is already used", Lun);
return -1;
}
for (i=0; i<CCID_DRIVER_MAX_READERS; i++)
if (-1 == ReaderIndex[i])
{
ReaderIndex[i] = Lun;
return i;
}
DEBUG_CRITICAL("ReaderIndex[] is full");
return -1;
} /* GetReaderIndex */
int LunToReaderIndex(const int Lun)
{
int i;
for (i=0; i<CCID_DRIVER_MAX_READERS; i++)
if (Lun == ReaderIndex[i])
return i;
DEBUG_CRITICAL2("Lun: %X not found", Lun);
return -1;
} /* LunToReaderIndex */
void ReleaseReaderIndex(const int index)
{
ReaderIndex[index] = -1;
} /* ReleaseReaderIndex */
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