ldrFile.cpp revision c97989161fbe75bc14cea477a5443bbf474dd3ad
/* $Id$ */
/** @file
* innotek Portable Runtime - Binary Image Loader, The File Oriented Parts.
*/
/*
* Copyright (C) 2006-2007 innotek GmbH
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* General Public License as published by the Free Software Foundation,
* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
* distribution. VirtualBox OSE is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY of any kind.
*
* If you received this file as part of a commercial VirtualBox
* distribution, then only the terms of your commercial VirtualBox
* license agreement apply instead of the previous paragraph.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#define LOG_GROUP RTLOGGROUP_LDR
/*******************************************************************************
* Structures and Typedefs *
*******************************************************************************/
/**
* File Reader instance.
* This provides raw image bits from a file.
*/
typedef struct RTLDRREADERFILE
{
/** The core. */
/** The file. */
/** The file size. */
/** The current offset. */
/** Number of users or the mapping. */
/** Pointer to the in memory mapping. */
void *pvMapping;
/** The filename (variable size). */
char szFilename[1];
/** @copydoc RTLDRREADER::pfnRead */
{
/*
* Seek.
*/
{
if (RT_FAILURE(rc))
{
return rc;
}
}
/*
* Read.
*/
if (RT_SUCCESS(rc))
else
return rc;
}
/** @copydoc RTLDRREADER::pfnTell */
{
return pFileReader->off;
}
/** @copydoc RTLDRREADER::pfnSize */
{
return pFileReader->cbFile;
}
/** @copydoc RTLDRREADER::pfnLogName */
{
return pFileReader->szFilename;
}
/** @copydoc RTLDRREADER::pfnFileMap */
{
/*
* Already mapped?
*/
if (pFileReader->pvMapping)
{
pFileReader->cMappings++;
return VINF_SUCCESS;
}
/*
* Allocate memory.
*/
return VERR_IMAGE_TOO_BIG;
if (!pFileReader->pvMapping)
return VERR_NO_MEMORY;
if (RT_SUCCESS(rc))
{
}
else
{
}
return rc;
}
/** @copydoc RTLDRREADER::pfnUnmap */
{
if (!--pFileReader->cMappings)
{
}
return VINF_SUCCESS;
}
/** @copydoc RTLDRREADER::pfnDestroy */
{
int rc = VINF_SUCCESS;
{
}
return rc;
}
/**
* Opens a loader file reader.
*
* @returns iprt status code.
* @param ppReader Where to store the reader instance on success.
* @param pszFilename The file to open.
*/
{
int rc = VERR_NO_MEMORY;
if (pFileReader)
{
rc = RTFileOpen(&pFileReader->File, pszFilename, RTFILE_O_READ | RTFILE_O_OPEN | RTFILE_O_DENY_WRITE);
if (RT_SUCCESS(rc))
{
if (RT_SUCCESS(rc))
{
pFileReader->off = 0;
pFileReader->cMappings = 0;
return VINF_SUCCESS;
}
}
}
return rc;
}
/**
* Open a binary image file.
*
* @returns iprt status code.
* @param pszFilename Image filename.
* @param phLdrMod Where to store the handle to the loaded module.
*/
{
LogFlow(("RTLdrOpen: pszFilename=%p:{%s} phLdrMod=%p\n",
/*
* Create file reader & invoke worker which identifies and calls the image interpreter.
*/
if (RT_SUCCESS(rc))
{
if (RT_SUCCESS(rc))
{
return rc;
}
}
*phLdrMod = NIL_RTLDRMOD;
return rc;
}
/**
* Opens a binary image file using kLdr.
*
* @returns iprt status code.
* @param pszFilename Image filename.
* @param phLdrMod Where to store the handle to the loaded module.
* @remark Primarily for testing the loader.
*/
{
#ifdef LDR_WITH_KLDR
LogFlow(("RTLdrOpenkLdr: pszFilename=%p:{%s} phLdrMod=%p\n",
/*
* Create file reader & invoke worker which identifies and calls the image interpreter.
*/
if (RT_SUCCESS(rc))
{
if (RT_SUCCESS(rc))
{
return rc;
}
}
*phLdrMod = NIL_RTLDRMOD;
return rc;
#else
#endif
}