Leaked source code of windows server 2003
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107 lines
2.4 KiB

/*++
Copyright (c) 2001 Microsoft Corporation
Module Name:
TrimVersionInfo.cpp
Abstract:
This shim trims the blanks off of the end the version info string.
Notes:
This is a general shim.
History:
08/01/2001 mnikkel, astritz Created
--*/
#include "precomp.h"
IMPLEMENT_SHIM_BEGIN(TrimVersionInfo)
#include "ShimHookMacro.h"
APIHOOK_ENUM_BEGIN
APIHOOK_ENUM_ENTRY(VerQueryValueA)
APIHOOK_ENUM_END
/*++
Return the product version with blanks trimmed from end.
--*/
BOOL
APIHOOK(VerQueryValueA)(
const LPVOID pBlock,
LPSTR lpSubBlock,
LPVOID *lplpBuffer,
PUINT puLen
)
{
BOOL bRet = ORIGINAL_API(VerQueryValueA)(
pBlock,
lpSubBlock,
lplpBuffer,
puLen);
if (bRet)
{
CSTRING_TRY
{
CString csSubBlock(lpSubBlock);
if (csSubBlock.Find(L"ProductVersion") != -1 ||
csSubBlock.Find(L"FileVersion") != -1)
{
int nLoc = 0;
DPFN(eDbgLevelError, "[VerQueryValueA] Asking for Product or File Version, trimming blanks");
DPFN(eDbgLevelSpew, "[VerQueryValueA] Version info is <%s>", *lplpBuffer);
CString csBuffer((char *)*lplpBuffer);
//
// Search for first blank
//
nLoc = csBuffer.Find(L" ");
if (nLoc != -1)
{
// if a blank is found then truncate string to that point
csBuffer.Truncate(nLoc);
StringCchCopyA((char *)*lplpBuffer, *puLen, csBuffer.GetAnsi());
if (puLen)
{
*puLen = nLoc;
DPFN(eDbgLevelSpew, "[VerQueryValueA] Version info Length = %d.", *puLen);
}
}
DPFN(eDbgLevelSpew, "[VerQueryValueA] Version info after trim is <%s>.", *lplpBuffer);
}
}
CSTRING_CATCH
{
/* do nothing */
}
}
return bRet;
}
/*++
Register hooked functions
--*/
HOOK_BEGIN
APIHOOK_ENTRY(VERSION.DLL, VerQueryValueA)
HOOK_END
IMPLEMENT_SHIM_END