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/*
* SQLGetAvailableDrivers.c
*
* $Id: SQLGetAvailableDrivers.c,v 1.1 2001/06/07 00:48:50 source Exp $
*
* Get a list of all available drivers
*
* 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 "misc.h"
#include "inifile.h"
#include "iodbc_error.h"
BOOL
GetAvailableDrivers (LPCSTR lpszInfFile, LPSTR lpszBuf, WORD cbBufMax,
WORD FAR *pcbBufOut, BOOL infFile)
{
int ret = 0, sect_len = 0;
WORD curr = 0;
BOOL retcode = FALSE;
PCONFIG pCfg;
char *szId;
if (!lpszBuf || !cbBufMax)
{
PUSH_ERROR (ODBC_ERROR_INVALID_BUFF_LEN);
goto quit;
}
/* Open the file to read from */
if (_iodbcdm_cfg_init (&pCfg, lpszInfFile, FALSE))
{
PUSH_ERROR (ODBC_ERROR_COMPONENT_NOT_FOUND);
goto quit;
}
/* Get the ODBC Drivers section */
#ifdef WIN32
if (_iodbcdm_cfg_find (pCfg, "ODBC 32 bit Drivers", NULL))
#else
if (_iodbcdm_cfg_find (pCfg, "ODBC Drivers", NULL))
#endif
{
PUSH_ERROR (ODBC_ERROR_COMPONENT_NOT_FOUND);
goto done;
}
while (curr < cbBufMax && 0 == _iodbcdm_cfg_nextentry (pCfg))
{
if (_iodbcdm_cfg_section (pCfg))
break;
if (_iodbcdm_cfg_define (pCfg) && pCfg->id)
{
szId = pCfg->id;
while (infFile && *szId == '"')
szId++;
sect_len = STRLEN (szId);
if (!sect_len)
{
PUSH_ERROR (ODBC_ERROR_INVALID_INF);
goto done;
}
while (infFile && *(szId + sect_len - 1) == '"')
sect_len -= 1;
sect_len = sect_len > cbBufMax - curr ? cbBufMax - curr : sect_len;
if (sect_len)
memmove (lpszBuf + curr, szId, sect_len);
else
{
PUSH_ERROR (ODBC_ERROR_INVALID_INF);
goto done;
}
curr += sect_len;
lpszBuf[curr++] = 0;
}
}
if (curr < cbBufMax)
lpszBuf[curr + 1] = 0;
if (pcbBufOut)
*pcbBufOut = curr;
retcode = TRUE;
done:
_iodbcdm_cfg_done (pCfg);
quit:
return retcode;
}
BOOL INSTAPI
SQLGetAvailableDrivers (LPCSTR lpszInfFile, LPSTR lpszBuf, WORD cbBufMax,
WORD FAR *pcbBufOut)
{
BOOL retcode = FALSE;
char path[1024] = { 0 };
WORD lenBufOut;
/* Get from the user files */
CLEAR_ERROR ();
switch (configMode)
{
case ODBC_BOTH_DSN:
case ODBC_USER_DSN:
wSystemDSN = USERDSN_ONLY;
break;
case ODBC_SYSTEM_DSN:
wSystemDSN = SYSTEMDSN_ONLY;
break;
};
retcode =
GetAvailableDrivers (lpszInfFile, lpszBuf, cbBufMax, &lenBufOut, FALSE);
if (pcbBufOut)
*pcbBufOut = lenBufOut;
wSystemDSN = USERDSN_ONLY;
configMode = ODBC_BOTH_DSN;
return retcode;
}
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