131 lines
2.7 KiB
C++
131 lines
2.7 KiB
C++
|
/*++
|
||
|
|
|
||
|
|
Copyright (c) 2000 Microsoft Corporation
|
||
|
|
|
||
|
|
Module Name:
|
||
|
|
|
||
|
|
FailOpenFile.cpp
|
||
|
|
|
||
|
|
Abstract:
|
||
|
|
|
||
|
|
Force OpenFile to fail for the specified files.
|
||
|
|
|
||
|
|
History:
|
||
|
|
|
||
|
|
01/31/2001 robkenny created
|
||
|
|
03/13/2001 robkenny Converted to CString
|
||
|
|
02/07/2002 astritz Converted to StrSafe
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
#include "precomp.h"
|
||
|
|
#include "charvector.h"
|
||
|
|
|
||
|
|
IMPLEMENT_SHIM_BEGIN(FailOpenFile)
|
||
|
|
#include "ShimHookMacro.h"
|
||
|
|
|
||
|
|
APIHOOK_ENUM_BEGIN
|
||
|
|
APIHOOK_ENUM_ENTRY(OpenFile)
|
||
|
|
APIHOOK_ENUM_END
|
||
|
|
|
||
|
|
CharVector * g_FailList = NULL;
|
||
|
|
|
||
|
|
HFILE
|
||
|
|
APIHOOK(OpenFile)(
|
||
|
|
LPCSTR lpFileName, // file name
|
||
|
|
LPOFSTRUCT lpReOpenBuff, // file information
|
||
|
|
UINT uStyle // action and attributes
|
||
|
|
)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
for (i = 0; i < g_FailList->Size(); ++i)
|
||
|
|
{
|
||
|
|
// Compare each fail name against the end of lpFileName
|
||
|
|
const char * failName = g_FailList->Get(i);
|
||
|
|
size_t failNameLen = strlen(failName);
|
||
|
|
size_t fileNameLen = strlen(lpFileName);
|
||
|
|
|
||
|
|
if (fileNameLen >= failNameLen)
|
||
|
|
{
|
||
|
|
if (_strnicmp(failName, lpFileName+fileNameLen-failNameLen, failNameLen) == 0)
|
||
|
|
{
|
||
|
|
// Force OpenFile to fail for this filename
|
||
|
|
DPFN( eDbgLevelError, "Forcing OpenFile(%s) to fail", lpFileName);
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
HFILE returnValue = ORIGINAL_API(OpenFile)(lpFileName, lpReOpenBuff, uStyle);
|
||
|
|
return returnValue;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Parse the command line, push each filename onto the end of the g_FailList.
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
BOOL ParseCommandLine(const char * cl)
|
||
|
|
{
|
||
|
|
g_FailList = new CharVector;
|
||
|
|
if (!g_FailList)
|
||
|
|
{
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (cl != NULL && *cl)
|
||
|
|
{
|
||
|
|
int argc = 0;
|
||
|
|
LPSTR * argv = _CommandLineToArgvA(cl, & argc);
|
||
|
|
if (argv)
|
||
|
|
{
|
||
|
|
for (int i = 0; i < argc; ++i)
|
||
|
|
{
|
||
|
|
if (!g_FailList->Append(argv[i]))
|
||
|
|
{
|
||
|
|
// Memory failure
|
||
|
|
delete g_FailList;
|
||
|
|
g_FailList = NULL;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
DPFN( eDbgLevelSpew, "Adding %s to fail list", argv[i]);
|
||
|
|
}
|
||
|
|
LocalFree(argv);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return g_FailList != NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Handle attach and detach
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
NOTIFY_FUNCTION(DWORD fdwReason)
|
||
|
|
{
|
||
|
|
if (fdwReason == DLL_PROCESS_ATTACH)
|
||
|
|
{
|
||
|
|
return ParseCommandLine(COMMAND_LINE);
|
||
|
|
}
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Register hooked functions
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
HOOK_BEGIN
|
||
|
|
CALL_NOTIFY_FUNCTION
|
||
|
|
|
||
|
|
APIHOOK_ENTRY(KERNEL32.DLL, OpenFile)
|
||
|
|
HOOK_END
|
||
|
|
|
||
|
|
IMPLEMENT_SHIM_END
|
||
|
|
|