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/*************************************************
* SQLInstallDriverEx
*
* pnUsageCount UsageCount is incremented and decremented
* only in this lib. This is done whenever
* a request is made to install or remove
* a driver.
* This differs slightly from the MS spec.
* see UsageCount entries in odbcinst.ini
*
* pszPathOut This lacks some smarts. I will pass pszPathIn
* back here or, if pszPathIn=NULL, I will default
* to /usr/lib
*
**************************************************
* This code was created by Peter Harvey @ CodeByDesign.
* Released under LGPL 28.JAN.99
*
* Contributions from...
* -----------------------------------------------
* Peter Harvey - pharvey@codebydesign.com
**************************************************/
#include <odbcinstext.h>
BOOL SQLInstallDriverEx( LPCSTR pszDriver,
LPCSTR pszPathIn,
LPSTR pszPathOut,
WORD nPathOutMax,
WORD *pnPathOut,
WORD nRequest,
LPDWORD pnUsageCount )
{
HINI hIni;
char szObjectName[INI_MAX_OBJECT_NAME+1];
char szNameValue[INI_MAX_PROPERTY_NAME+INI_MAX_PROPERTY_VALUE+3];
char szPropertyName[INI_MAX_PROPERTY_NAME+1];
char szValue[INI_MAX_PROPERTY_VALUE+1];
char szIniName[ INI_MAX_OBJECT_NAME + 1 ];
BOOL bInsertUsageCount;
int nElement;
int nUsageCount = 0; /* SHOULD GET THIS FROM SOMEWHERE ? */
/* SANITY CHECKS */
if ( pszDriver == NULL || pszPathOut == NULL )
{
inst_logPushMsg( __FILE__, __FILE__, __LINE__, LOG_CRITICAL, ODBC_ERROR_GENERAL_ERR, "" );
return FALSE;
}
if ( nRequest != ODBC_INSTALL_INQUIRY && nRequest != ODBC_INSTALL_COMPLETE )
{
inst_logPushMsg( __FILE__, __FILE__, __LINE__, LOG_CRITICAL, ODBC_ERROR_INVALID_REQUEST_TYPE, "" );
return FALSE;
}
memset( pszPathOut, '\0', nPathOutMax );
if ( pszPathIn )
{
#ifdef VMS
sprintf( szIniName, "%sODBCINST.INI", pszPathIn );
#else
sprintf( szIniName, "%s/odbcinst.ini", pszPathIn );
#endif
}
else
{
#ifdef VMS
sprintf( szIniName, "%sODBCINST.INI", odbcinst_system_file_path() );
#else
sprintf( szIniName, "%s/odbcinst.ini", odbcinst_system_file_path() );
#endif
}
/* PROCESS ODBC INST INI FILE */
#ifdef __OS2__
if ( iniOpen( &hIni, szIniName, "#;", '[', ']', '=', TRUE, 1L ) != INI_SUCCESS )
#else
if ( iniOpen( &hIni, szIniName, "#;", '[', ']', '=', TRUE ) != INI_SUCCESS )
#endif
{
inst_logPushMsg( __FILE__, __FILE__, __LINE__, LOG_CRITICAL, ODBC_ERROR_COMPONENT_NOT_FOUND, "" );
return FALSE;
}
if ( iniElement( (char *)pszDriver, '\0', '\0', 0, szObjectName, INI_MAX_OBJECT_NAME ) != INI_SUCCESS )
{
iniClose( hIni );
inst_logPushMsg( __FILE__, __FILE__, __LINE__, LOG_CRITICAL, ODBC_ERROR_INVALID_KEYWORD_VALUE, "" );
return FALSE;
}
/* LETS GET ITS FILE USAGE VALUE (if any) */
if ( iniPropertySeek( hIni, szObjectName, "UsageCount", "" ) == INI_SUCCESS )
{
iniValue( hIni, szValue );
nUsageCount = atoi( szValue );
}
/* DOES THE OBJECT ALREADY EXIST? (also ensures that we have correct current object) */
if ( iniObjectSeek( hIni, szObjectName ) == INI_SUCCESS )
{
if ( nUsageCount == 0 )
nUsageCount = 1;
if ( nRequest == ODBC_INSTALL_COMPLETE )
{
iniObjectDelete( hIni );
}
}
/* LETS ADD THE SECTION AND ENTRY */
nUsageCount++;
if ( nRequest == ODBC_INSTALL_COMPLETE )
{
bInsertUsageCount = TRUE;
iniObjectInsert( hIni, szObjectName );
for ( nElement=1;
iniElement( (char *)pszDriver, '\0', '\0', nElement, szNameValue, INI_MAX_PROPERTY_NAME+INI_MAX_PROPERTY_VALUE+3 ) == INI_SUCCESS;
nElement++ )
{
iniElement( szNameValue, '=', '\0', 0, szPropertyName, INI_MAX_PROPERTY_NAME );
iniElementEOL( szNameValue, '=', '\0', 1, szValue, INI_MAX_PROPERTY_VALUE );
if ( szPropertyName[0] != '\0' )
{
/* OVERRIDE ANY USAGE COUNT CHANGES */
if ( strcasecmp( szPropertyName, "UsageCount" ) == 0 )
{
bInsertUsageCount = FALSE;
sprintf( szValue, "%d", nUsageCount );
}
iniPropertyInsert( hIni, szPropertyName, szValue );
}
else
{
iniClose( hIni );
inst_logPushMsg( __FILE__, __FILE__, __LINE__, LOG_CRITICAL, ODBC_ERROR_INVALID_KEYWORD_VALUE, "" );
return FALSE;
}
} /* for */
if ( bInsertUsageCount )
{
/* LETS INSERT USAGE COUNT */
sprintf( szValue, "%d", nUsageCount );
iniPropertyInsert( hIni, "UsageCount", szValue );
}
if ( iniCommit( hIni ) != INI_SUCCESS )
{
inst_logPushMsg( __FILE__, __FILE__, __LINE__, LOG_CRITICAL, ODBC_ERROR_INVALID_PATH, "" );
iniClose( hIni );
return FALSE;
}
}
iniClose( hIni );
/* OK, SO WHATS LEFT? */
if ( pszPathIn == NULL )
{
if ( pszPathOut )
{
if ( strlen( odbcinst_system_file_path()) < nPathOutMax )
{
strcpy( pszPathOut, odbcinst_system_file_path());
}
else
{
strncpy( pszPathOut, odbcinst_system_file_path(), nPathOutMax );
pszPathOut[ nPathOutMax - 1 ] = '\0';
}
}
}
else
{
if ( pszPathOut )
{
if ( strlen( pszPathIn ) < nPathOutMax )
{
strcpy( pszPathOut, pszPathIn );
}
else
{
strncpy( pszPathOut, pszPathIn, nPathOutMax );
pszPathOut[ nPathOutMax - 1 ] = '\0';
}
}
}
if ( pnPathOut != NULL )
{
if ( pszPathIn == NULL )
{
*pnPathOut = strlen( odbcinst_system_file_path());
}
else
{
*pnPathOut = strlen( pszPathIn );
}
}
if ( pnUsageCount != NULL )
{
*pnUsageCount = nUsageCount;
}
return TRUE;
}
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