windows-xp/Source/XPSP1/NT/net/sockets/winsock2/ws2help/ws2ifsl/debug.c

/*++

Copyright (c) 1989  Microsoft Corporation

Module Name:

    process.c

Abstract:

    This module implements debug support for ws2ifsl.sys driver.

Author:

    Vadim Eydelman (VadimE)    Dec-1996

Revision History:

--*/

#include "precomp.h"
#if DBG
ULONG DbgLevel=DBG_FAILURES;

VOID
ReadDbgInfo (
    IN PUNICODE_STRING RegistryPath
    ) {
    PWSTR RegistryPathBuffer;
    PWSTR Parameters = L"Parameters";
    RTL_QUERY_REGISTRY_TABLE    paramTable[3]; // table size = nr of params + 2

    RegistryPathBuffer = (PWSTR)ExAllocatePool(NonPagedPool,
                                RegistryPath->Length + sizeof(WCHAR));

    if (RegistryPathBuffer == NULL) {
        return;
    }

    RtlCopyMemory (RegistryPathBuffer, RegistryPath->Buffer, RegistryPath->Length);
    *(PWCHAR)(((PUCHAR)RegistryPathBuffer)+RegistryPath->Length) = (WCHAR)'\0';

    RtlZeroMemory(&paramTable[0], sizeof(paramTable));

    paramTable[0].QueryRoutine = NULL;
    paramTable[0].Flags = RTL_QUERY_REGISTRY_SUBKEY;
    paramTable[0].Name = Parameters;

    paramTable[1].Flags = RTL_QUERY_REGISTRY_DIRECT;
    paramTable[1].Name = L"DbgLevel";
    paramTable[1].EntryContext = &DbgLevel;
    paramTable[1].DefaultType = REG_DWORD;
    paramTable[1].DefaultData = &DbgLevel;
    paramTable[1].DefaultLength = sizeof(ULONG);

    RtlQueryRegistryValues(
          RTL_REGISTRY_ABSOLUTE,
          RegistryPathBuffer,
          paramTable,
          NULL,
          NULL);

    ExFreePool(RegistryPathBuffer);

}
#endif