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/**************************************************
* _SQLGetInstalledDrivers
*
* Added to allow ODBC Config programs and the ODBC
* driver manager to access system information without
* having to worry about where it is... just like accessing
* Data Source information. So no surprise... its just
* like SQLGetPrivateProfileString()!
*
* see SQLGetPrivateProfileString to see how this is called.
*
**************************************************
* This code was created by Peter Harvey @ CodeByDesign.
* Released under LGPL 28.JAN.99
*
* Contributions from...
* -----------------------------------------------
* Peter Harvey - pharvey@codebydesign.com
**************************************************/
#include <config.h>
#include <odbcinstext.h>
int _SQLGetInstalledDrivers( LPCSTR pszSection,
LPCSTR pszEntry,
LPCSTR pszDefault,
LPCSTR pRetBuffer,
int nRetBuffer )
{
HINI hIni;
int nBufPos = 0;
int nStrToCopy;
char szObjectName[INI_MAX_OBJECT_NAME+1];
char szPropertyName[INI_MAX_PROPERTY_NAME+1];
char szValue[INI_MAX_PROPERTY_VALUE+1];
char szIniName[ INI_MAX_OBJECT_NAME + 1 ];
char *ptr;
char b1[ 256 ], b2[ 256 ];
/* SANITY CHECKS */
if ( pRetBuffer == NULL || nRetBuffer < 2 )
{
inst_logPushMsg( __FILE__, __FILE__, __LINE__, LOG_CRITICAL, ODBC_ERROR_GENERAL_ERR, "" );
return -1;
}
/*
* first try in the system odbcinst.ini
*/
#ifdef VMS
sprintf( szIniName, "%s:%s", odbcinst_system_file_path( b1 ), odbcinst_system_file_name( b2 ));
#else
sprintf( szIniName, "%s/%s", odbcinst_system_file_path( b1 ), odbcinst_system_file_name( b2 ));
#endif
/* PROCESS ODBC INI FILE */
#ifdef __OS2__
if ( iniOpen( &hIni, szIniName, "#;", '[', ']', '=', 1, 1L ) != INI_SUCCESS )
#else
if ( iniOpen( &hIni, szIniName, "#;", '[', ']', '=', 1 ) != INI_SUCCESS )
#endif
{
inst_logPushMsg( __FILE__, __FILE__, __LINE__, LOG_CRITICAL, ODBC_ERROR_COMPONENT_NOT_FOUND, "" );
return -1;
}
/*
* now try the user odbcinst.ini if it exists
*/
#ifdef VMS
sprintf( szIniName, "%s:%s", odbcinst_user_file_path( b1 ), odbcinst_user_file_name( b2 ));
#else
sprintf( szIniName, "%s/%s", odbcinst_user_file_path( b1 ), odbcinst_user_file_name( b2 ));
#endif
/* PROCESS .ODBCINST INI FILE */
iniAppend( hIni, szIniName );
nBufPos = 0;
if ( pszSection == NULL )
{
ptr = (char*) pRetBuffer;
*ptr = '\0';
/* JUST COLLECT SECTION NAMES */
for( iniObjectFirst( hIni ); iniObjectEOL( hIni ) != TRUE; iniObjectNext( hIni ))
{
iniObject( hIni, szObjectName );
if ( strcasecmp( szObjectName, "ODBC" ) == 0 )
{
continue;
}
else if ( nBufPos + 1 + strlen( szObjectName ) >= nRetBuffer )
{
break;
}
else
{
strcpy( ptr, szObjectName );
ptr += strlen( ptr ) + 1;
nBufPos += strlen( szObjectName ) + 1;
}
}
/*
* Add final NULL
*/
if ( nBufPos == 0 )
{
ptr ++;
}
*ptr = '\0';
}
else if ( pszEntry == NULL )
{
ptr = (char*) pRetBuffer;
*ptr = '\0';
iniObjectSeek( hIni, (char *)pszSection );
/* COLLECT ALL ENTRIES FOR THE GIVEN SECTION */
for( iniPropertyFirst( hIni ); iniPropertyEOL( hIni ) != TRUE; iniPropertyNext( hIni ))
{
iniProperty( hIni, szPropertyName );
if ( nBufPos + 1 + strlen( szPropertyName ) >= nRetBuffer )
{
break;
}
else
{
strcpy( ptr, szPropertyName );
ptr += strlen( ptr ) + 1;
nBufPos += strlen( szPropertyName ) + 1;
}
}
/*
* Add final NULL
*/
if ( nBufPos == 0 )
{
ptr ++;
}
}
else
{
/* TRY TO GET THE ONE ITEM MATCHING Section & Entry */
if ( iniPropertySeek( hIni, (char *)pszSection, (char *)pszEntry, "" ) != INI_SUCCESS )
{
/* try to use any default provided */
if ( pRetBuffer && nRetBuffer > 0 )
{
if ( pszDefault )
{
strncpy( (char *)pRetBuffer, pszDefault, nRetBuffer );
((char*)pRetBuffer)[ nRetBuffer - 1 ] = '\0';
}
}
}
else
{
iniValue( hIni, szValue );
nStrToCopy = strlen( szValue ) + 1; /* factor NULL terminator for string */
if ( nBufPos + nStrToCopy + 1 > nRetBuffer ) /* factor NULL terminator for buffer */
nStrToCopy = nRetBuffer - nBufPos - 2;
strncpy( (char *)&(pRetBuffer[nBufPos]), szValue, nStrToCopy );
nBufPos += nStrToCopy;
/*
* length doesn't include NULL
*/
nBufPos--;
}
}
/* CLOSE */
iniClose( hIni );
return nBufPos;
}
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