139 lines
2.9 KiB
C++
139 lines
2.9 KiB
C++
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/*++
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Copyright (c) 2000-2001 Microsoft Corporation
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Module Name:
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HandleDBCSUserName.cpp
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Abstract:
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ShFolder.Exe is failing installation when its app path has Hi Ascii characters (typically DBCS).
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When app path is double quoted, the bug code is not processed and install will succeed.
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This shim wrap the command line app path name with double quote at GetCommandLineA.
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Example:
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C:\DOCUME~1\DBCS\LOCALS~1\Temp\_ISTMP1.DIR\_ISTMP0.DIR\shfolder.exe /Q:a
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"C:\DOCUME~1\DBCS\LOCALS~1\Temp\_ISTMP1.DIR\_ISTMP0.DIR\shfolder.exe" /Q:a
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More info:
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Self extractor ShFolder.Exe checks its app path name with space char 0x20 on signed char basis.
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Hi Ascii character included in path treated below 0x20 and path is chopped at there.
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When path has double quote at the top, the problem check is not proceeded.
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History:
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04/09/2001 hioh Created
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(HandleDBCSUserName)
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#include "ShimHookMacro.h"
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//
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// Add APIs that you wish to hook to this macro construction.
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//
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(GetCommandLineA)
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APIHOOK_ENUM_END
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char * g_lpszCommandLine = NULL;
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CRITICAL_SECTION g_csCmdLine;
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class CAutoLock
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{
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public:
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CAutoLock()
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{
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EnterCriticalSection(&g_csCmdLine);
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}
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~CAutoLock()
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{
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LeaveCriticalSection(&g_csCmdLine);
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}
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};
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/*++
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Wrap the application path name with double quote.
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--*/
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LPSTR
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APIHOOK(GetCommandLineA)(
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void
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)
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{
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CAutoLock lock;
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if (g_lpszCommandLine)
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{
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// Been here, done that
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return g_lpszCommandLine;
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}
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g_lpszCommandLine = ORIGINAL_API(GetCommandLineA)();
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CSTRING_TRY
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{
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AppAndCommandLine appCmdLine(NULL, g_lpszCommandLine);
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// The command line is often only the arguments: no application name
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// If the "application name" doesn't exist, don't bother to put quotes
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// around it.
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DWORD dwAttr = GetFileAttributesW(appCmdLine.GetApplicationName());
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if (dwAttr != INVALID_FILE_ATTRIBUTES)
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{
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CString csDQ = L'"';
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CString csCL = csDQ;
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CString csNA = appCmdLine.GetCommandlineNoAppName();
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csCL += appCmdLine.GetApplicationName();
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csCL += csDQ;
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if (!csNA.IsEmpty())
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{ // Add the rest
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csCL += L" ";
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csCL += csNA;
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}
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g_lpszCommandLine = csCL.ReleaseAnsi();
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}
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}
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CSTRING_CATCH
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{
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// Do nothing, g_lpszCommandLine is initialized with good value
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}
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return g_lpszCommandLine;
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}
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BOOL
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NOTIFY_FUNCTION(
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DWORD fdwReason)
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{
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if (fdwReason == DLL_PROCESS_ATTACH)
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{
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return InitializeCriticalSectionAndSpinCount(&g_csCmdLine, 0x80000000);
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}
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return TRUE;
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}
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/*++
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Register hooked functions
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--*/
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HOOK_BEGIN
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CALL_NOTIFY_FUNCTION
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APIHOOK_ENTRY(KERNEL32.DLL, GetCommandLineA)
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HOOK_END
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IMPLEMENT_SHIM_END
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