| 1 | /* $Id: ldrNative-win32.cpp 1 1970-01-01 00:00:00Z vboxsync $ */
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| 2 | /** @file
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| 3 | * InnoTek Portable Runtime - Binary Image Loader, Win32 native.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006 InnoTek Systemberatung GmbH
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License as published by the Free Software Foundation,
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| 13 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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| 14 | * distribution. VirtualBox OSE is distributed in the hope that it will
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| 15 | * be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * If you received this file as part of a commercial VirtualBox
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| 18 | * distribution, then only the terms of your commercial VirtualBox
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| 19 | * license agreement apply instead of the previous paragraph.
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| 20 | */
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| 21 |
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| 22 | /*******************************************************************************
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| 23 | * Header Files *
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| 24 | *******************************************************************************/
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| 25 | #define LOG_GROUP RTLOGGROUP_LDR
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| 26 | #include <Windows.h>
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| 27 |
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| 28 | #include <iprt/ldr.h>
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| 29 | #include <iprt/assert.h>
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| 30 | #include <iprt/path.h>
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| 31 | #include <iprt/err.h>
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| 32 | #include <iprt/alloca.h>
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| 33 | #include "internal/ldr.h"
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| 34 |
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| 35 |
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| 36 | int rtldrNativeLoad(const char *pszFilename, uintptr_t *phHandle)
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| 37 | {
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| 38 | Assert(sizeof(*phHandle) >= sizeof(HMODULE));
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| 39 |
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| 40 | /*
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| 41 | * Do we need to add an extension?
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| 42 | */
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| 43 | if (!RTPathHaveExt(pszFilename))
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| 44 | {
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| 45 | size_t cch = strlen(pszFilename);
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| 46 | char *psz = (char *)alloca(cch + sizeof(".DLL"));
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| 47 | if (!psz)
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| 48 | return VERR_NO_MEMORY;
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| 49 | memcpy(psz, pszFilename, cch);
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| 50 | memcpy(psz + cch, ".DLL", sizeof(".DLL"));
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| 51 | pszFilename = psz;
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| 52 | }
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| 53 |
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| 54 | /*
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| 55 | * Attempt load.
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| 56 | */
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| 57 | HMODULE hmod = LoadLibrary(pszFilename);
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| 58 | if (hmod)
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| 59 | {
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| 60 | *phHandle = (uintptr_t)hmod;
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| 61 | return VINF_SUCCESS;
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| 62 | }
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| 63 |
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| 64 | return RTErrConvertFromWin32(GetLastError());
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| 65 | }
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| 66 |
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| 67 |
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| 68 | DECLCALLBACK(int) rtldrNativeGetSymbol(PRTLDRMODINTERNAL pMod, const char *pszSymbol, void **ppvValue)
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| 69 | {
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| 70 | PRTLDRMODNATIVE pModNative = (PRTLDRMODNATIVE)pMod;
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| 71 | FARPROC pfn = GetProcAddress((HMODULE)pModNative->hNative, pszSymbol);
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| 72 | if (pfn)
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| 73 | {
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| 74 | *ppvValue = (void *)pfn;
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| 75 | return VINF_SUCCESS;
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| 76 | }
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| 77 | *ppvValue = NULL;
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| 78 | return RTErrConvertFromWin32(GetLastError());
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| 79 | }
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| 80 |
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| 81 |
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| 82 | DECLCALLBACK(int) rtldrNativeClose(PRTLDRMODINTERNAL pMod)
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| 83 | {
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| 84 | PRTLDRMODNATIVE pModNative = (PRTLDRMODNATIVE)pMod;
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| 85 | if (FreeLibrary((HMODULE)pModNative->hNative))
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| 86 | {
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| 87 | pModNative->hNative = (uintptr_t)INVALID_HANDLE_VALUE;
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| 88 | return VINF_SUCCESS;
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| 89 | }
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| 90 | return RTErrConvertFromWin32(GetLastError());
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| 91 | }
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| 92 |
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