78 lines
1.7 KiB
C++
78 lines
1.7 KiB
C++
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/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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EmulateGetStdHandle.cpp
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Abstract:
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Normally, when a process is created, members hStdInput, hStdOutput, and
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hStdError of STARTUPINFO struct are set to NULL. Some apps like
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Baby-Sitters Club Activity Center and Baby-Sitters Club 3-rd Grade Disk 2
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may check these handles and send Error messages.
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This shim can be used in this case to send appropriate handles and prevent
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program terminate.
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History:
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06/14/2000 a-vales created
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11/29/2000 andyseti Converted into AppSpecific shim.
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(EmulateGetStdHandle)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(GetStdHandle)
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APIHOOK_ENUM_END
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HANDLE
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APIHOOK(GetStdHandle)(
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DWORD nStdHandle)
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{
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HANDLE hStd = ORIGINAL_API(GetStdHandle)(nStdHandle);
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if (hStd == 0)
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{
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switch (nStdHandle)
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{
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case STD_INPUT_HANDLE:
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LOGN( eDbgLevelError, "Correcting GetStdHandle(STD_INPUT_HANDLE). Returning handle = 1.");
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hStd = (HANDLE) 1;
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break;
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case STD_OUTPUT_HANDLE:
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LOGN( eDbgLevelError, "Correcting GetStdHandle(STD_OUTPUT_HANDLE). Returning handle = 2.");
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hStd = (HANDLE) 2;
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break;
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case STD_ERROR_HANDLE:
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LOGN( eDbgLevelError, "Correcting GetStdHandle(STD_ERROR_HANDLE). Returning handle = 3.");
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hStd = (HANDLE) 3;
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break;
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}
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}
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return hStd;
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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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APIHOOK_ENTRY(KERNEL32.DLL, GetStdHandle)
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HOOK_END
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IMPLEMENT_SHIM_END
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