PARAM.C

/******************************************************************************\ 
*       This is a part of the Microsoft Source Code Samples. 
*       Copyright 1992 - 1998 Microsoft Corporation. 
*       All rights reserved.  
*       This source code is only intended as a supplement to  
*       Microsoft Development Tools and/or WinHelp documentation. 
*       See these sources for detailed information regarding the  
*       Microsoft samples programs. 
\******************************************************************************/ 
 
//+--------------------------------------------------------------------------- 
// 
//  File:       param.c 
// 
//  Contents: 
// 
//  Classes: 
// 
//  Functions: 
// 
//---------------------------------------------------------------------------- 
 
#include "pop3srvp.h" 
#pragma hdrstop 
 
WCHAR   szParamPath[] = TEXT("System\\CurrentControlSet\\Services\\Pop3Srv\\Parameters"); 
WCHAR   szMailDirValue[] = TEXT("Mail Directory"); 
WCHAR   szLoggingValue[] = TEXT("Logging Level"); 
 
//+--------------------------------------------------------------------------- 
// 
//  Function:   ReadParameters 
// 
//  Synopsis:   Read parameters from registry 
// 
//  Arguments:  (none) 
// 
//  History:    1-11-95   RichardW   Created 
// 
//  Notes: 
// 
//---------------------------------------------------------------------------- 
BOOL 
ReadParameters(VOID) 
{ 
    HKEY    hKey; 
    LONG    err; 
    DWORD   ValueType; 
    DWORD   SizeOfBuffer; 
 
    if (err = RegOpenKey(HKEY_LOCAL_MACHINE, szParamPath, &hKey)) 
    { 
        ReportServiceEvent( 
            EVENTLOG_ERROR_TYPE, 
            POP3EVENT_PARAMETER_MISSING, 
            0, NULL, 1, szParamPath); 
        DebugLog((DEB_ERROR, "Could not open key, %d\n", err)); 
        return(FALSE); 
    } 
 
    // 
    // Now, read the parameters from the key: 
    // 
 
    SizeOfBuffer = MAX_PATH; 
    err = RegQueryValueEx(  hKey,               // Key that we opened 
                            szMailDirValue,     // Value that we want 
                            NULL, 
                            &ValueType,         // Receives value type 
                            (PUCHAR) BaseDirectory,      // Receives value 
                            &SizeOfBuffer );    // Size of buffer 
 
    if (err || (ValueType != REG_SZ)) 
    { 
        DebugLog((DEB_ERROR, "Error %d reading value\n", err)); 
        ReportServiceEvent( 
            EVENTLOG_ERROR_TYPE, 
            POP3EVENT_PARAMETER_MISSING, 
            0, NULL, 1, szMailDirValue); 
        RegCloseKey(hKey); 
        return(FALSE); 
    } 
 
    // 
    // Add a backslash, so life is easier later: 
    // 
    SizeOfBuffer = wcslen(BaseDirectory); 
    if (BaseDirectory[SizeOfBuffer - 1] != L'\\') 
    { 
        BaseDirectory[SizeOfBuffer++] = L'\\'; 
        BaseDirectory[SizeOfBuffer] = L'\0'; 
    } 
 
    SizeOfBuffer = sizeof(DWORD); 
    err = RegQueryValueEx(  hKey, 
                            szLoggingValue, 
                            NULL, 
                            &ValueType, 
                            (PUCHAR) &LoggingLevel, 
                            &SizeOfBuffer ); 
 
    if (err || ValueType != REG_DWORD) 
    { 
        DebugLog((DEB_ERROR, "Error %d reading value\n", err)); 
        ReportServiceEvent( 
            EVENTLOG_ERROR_TYPE, 
            POP3EVENT_PARAMETER_MISSING, 
            0, NULL, 1, szLoggingValue); 
        RegCloseKey(hKey); 
        return(FALSE); 
    } 
 
    RegCloseKey(hKey); 
    return(TRUE); 
}