| 1 | /* $Id: ldrNative-win.cpp 34959 2010-12-10 15:17:31Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - 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) 2006-2007 Oracle Corporation
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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.alldomusa.eu.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 (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 | /*******************************************************************************
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| 28 | * Header Files *
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| 29 | *******************************************************************************/
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| 30 | #define LOG_GROUP RTLOGGROUP_LDR
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| 31 | #include <Windows.h>
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| 32 |
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| 33 | #include <iprt/ldr.h>
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| 34 | #include <iprt/assert.h>
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| 35 | #include <iprt/path.h>
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| 36 | #include <iprt/err.h>
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| 37 | #include <iprt/alloca.h>
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| 38 | #include "internal/ldr.h"
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| 39 |
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| 40 |
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| 41 | int rtldrNativeLoad(const char *pszFilename, uintptr_t *phHandle, char *pszError, size_t cbError)
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| 42 | {
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| 43 | Assert(sizeof(*phHandle) >= sizeof(HMODULE));
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| 44 |
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| 45 | /*
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| 46 | * Do we need to add an extension?
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| 47 | */
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| 48 | if (!RTPathHaveExt(pszFilename))
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| 49 | {
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| 50 | size_t cch = strlen(pszFilename);
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| 51 | char *psz = (char *)alloca(cch + sizeof(".DLL"));
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| 52 | if (!psz)
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| 53 | return VERR_NO_MEMORY;
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| 54 | memcpy(psz, pszFilename, cch);
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| 55 | memcpy(psz + cch, ".DLL", sizeof(".DLL"));
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| 56 | pszFilename = psz;
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| 57 | }
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| 58 |
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| 59 | /*
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| 60 | * Attempt load.
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| 61 | */
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| 62 | HMODULE hmod = LoadLibrary(pszFilename);
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| 63 | if (hmod)
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| 64 | {
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| 65 | *phHandle = (uintptr_t)hmod;
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| 66 | return VINF_SUCCESS;
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| 67 | }
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| 68 |
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| 69 | /*
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| 70 | * Try figure why it failed to load.
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| 71 | */
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| 72 | DWORD dwErr = GetLastError(dwErr);
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| 73 | int rc = RTErrConvertFromWin32(dwErr);
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| 74 | if (cbError)
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| 75 | RTStrPrintf(pszError, cbError, "GetLastError=%u", dwErr);
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| 76 | return rc;
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| 77 | }
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| 78 |
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| 79 |
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| 80 | DECLCALLBACK(int) rtldrNativeGetSymbol(PRTLDRMODINTERNAL pMod, const char *pszSymbol, void **ppvValue)
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| 81 | {
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| 82 | PRTLDRMODNATIVE pModNative = (PRTLDRMODNATIVE)pMod;
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| 83 | FARPROC pfn = GetProcAddress((HMODULE)pModNative->hNative, pszSymbol);
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| 84 | if (pfn)
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| 85 | {
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| 86 | *ppvValue = (void *)pfn;
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| 87 | return VINF_SUCCESS;
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| 88 | }
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| 89 | *ppvValue = NULL;
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| 90 | return RTErrConvertFromWin32(GetLastError());
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| 91 | }
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| 92 |
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| 93 |
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| 94 | DECLCALLBACK(int) rtldrNativeClose(PRTLDRMODINTERNAL pMod)
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| 95 | {
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| 96 | PRTLDRMODNATIVE pModNative = (PRTLDRMODNATIVE)pMod;
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| 97 | if (FreeLibrary((HMODULE)pModNative->hNative))
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| 98 | {
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| 99 | pModNative->hNative = (uintptr_t)INVALID_HANDLE_VALUE;
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| 100 | return VINF_SUCCESS;
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| 101 | }
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| 102 | return RTErrConvertFromWin32(GetLastError());
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| 103 | }
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| 104 |
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