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|
/*
* SQLRemoveDriver.c
*
* $Id: SQLRemoveDriver.c,v 1.1 2001/06/07 00:48:50 source Exp $
*
* Remove a driver
*
* The iODBC driver manager.
*
* Copyright (C) 2001 by OpenLink Software <iodbc@openlinksw.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <iodbc.h>
#include <iodbcinst.h>
#include "inifile.h"
#include "misc.h"
#include "iodbc_error.h"
BOOL INSTAPI
SQLRemoveDriver (LPCSTR lpszDriver, BOOL fRemoveDSN, LPDWORD lpdwUsageCount)
{
/*char *szDriverFile = NULL; */
BOOL retcode = FALSE;
PCONFIG pCfg = NULL, pInstCfg = NULL;
LPSTR entries = (LPSTR) malloc (sizeof (char) * 65535), curr;
int len = 0, i = 0;
/* Check input parameters */
CLEAR_ERROR ();
if (!lpszDriver || !STRLEN (lpszDriver))
{
PUSH_ERROR (ODBC_ERROR_INVALID_NAME);
goto quit;
}
/* Else go through user/system odbcinst.ini */
switch (configMode)
{
case ODBC_BOTH_DSN:
case ODBC_USER_DSN:
wSystemDSN = USERDSN_ONLY;
break;
case ODBC_SYSTEM_DSN:
wSystemDSN = SYSTEMDSN_ONLY;
break;
};
if (_iodbcdm_cfg_search_init (&pCfg, "odbc.ini", FALSE))
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
if (_iodbcdm_cfg_search_init (&pInstCfg, "odbcinst.ini", FALSE))
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
if (fRemoveDSN)
{
#ifdef WIN32
if (entries &&
(len = _iodbcdm_list_entries (pCfg, "ODBC 32 bit Data Sources",
entries, 65535)))
#else
if (entries
&& (len =
_iodbcdm_list_entries (pCfg, "ODBC Data Sources", entries,
65535)))
#endif
{
for (curr = entries; i < len;
i += (STRLEN (curr) + 1), curr += (STRLEN (curr) + 1))
{
int nCursor = pCfg->cursor;
if (_iodbcdm_cfg_rewind (pCfg))
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
#ifdef WIN32
if (_iodbcdm_cfg_find (pCfg, "ODBC 32 bit Data Sources", curr))
#else
if (_iodbcdm_cfg_find (pCfg, "ODBC Data Sources", curr))
#endif
{
if (_iodbcdm_cfg_rewind (pCfg))
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
pCfg->cursor = nCursor;
continue;
}
if (!strcmp (pCfg->value, lpszDriver))
{
if (_iodbcdm_cfg_write (pCfg, curr, NULL, NULL))
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
#ifdef WIN32
if (_iodbcdm_cfg_write (pCfg, "ODBC 32 bit Data Sources",
curr, NULL))
#else
if (_iodbcdm_cfg_write (pCfg, "ODBC Data Sources", curr,
NULL))
#endif
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
}
pCfg->cursor = nCursor;
}
}
}
if (_iodbcdm_cfg_write (pInstCfg, (char *) lpszDriver, NULL, NULL))
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
#ifdef WIN32
if (_iodbcdm_cfg_write (pInstCfg, "ODBC 32 bit Drivers", lpszDriver, NULL))
#else
if (_iodbcdm_cfg_write (pInstCfg, "ODBC Drivers", (LPSTR) lpszDriver, NULL))
#endif
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
if (_iodbcdm_cfg_commit (pCfg) || _iodbcdm_cfg_commit (pInstCfg))
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
retcode = TRUE;
done:
if (pCfg)
_iodbcdm_cfg_done (pCfg);
if (pInstCfg)
_iodbcdm_cfg_done (pInstCfg);
if (entries)
free (entries);
quit:
wSystemDSN = USERDSN_ONLY;
configMode = ODBC_BOTH_DSN;
return retcode;
}
|
