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/* $Id: RTSystemQueryDmiString-linux.cpp 29642 2010-05-18 14:44:56Z vboxsync $ */
/** @file
* IPRT - RTSystemQueryDmiString, linux ring-3.
*/
/*
* Copyright (C) 2010 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) 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.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#include <iprt/system.h>
#include "internal/iprt.h"
#include <iprt/err.h>
#include <iprt/assert.h>
#include <iprt/linux/sysfs.h>
#include <errno.h>
RTDECL(int) RTSystemQueryDmiString(RTSYSDMISTR enmString, char *pszBuf, size_t cbBuf)
{
AssertPtrReturn(pszBuf, VERR_INVALID_POINTER);
AssertReturn(cbBuf > 0, VERR_INVALID_PARAMETER);
*pszBuf = '\0';
AssertReturn(enmString > RTSYSDMISTR_INVALID && enmString < RTSYSDMISTR_END, VERR_INVALID_PARAMETER);
const char *pszSysFsName;
switch (enmString)
{
case RTSYSDMISTR_PRODUCT_NAME: pszSysFsName = "id/product_name"; break;
case RTSYSDMISTR_PRODUCT_VERSION: pszSysFsName = "id/product_version"; break;
case RTSYSDMISTR_PRODUCT_UUID: pszSysFsName = "id/product_uuid"; break;
case RTSYSDMISTR_PRODUCT_SERIAL: pszSysFsName = "id/product_serial"; break;
case RTSYSDMISTR_MANUFACTURER: pszSysFsName = "id/sys_vendor"; break;
default:
return VERR_NOT_SUPPORTED;
}
int rc;
int fd = RTLinuxSysFsOpen("devices/virtual/dmi/%s", pszSysFsName);
if (fd < 0)
fd = RTLinuxSysFsOpen("class/dmi/%s", pszSysFsName);
if (fd >= 0)
{
size_t cbRead;
rc = RTLinuxSysFsReadFile(fd, pszBuf, cbBuf, &cbRead);
if (RT_SUCCESS(rc) || rc == VERR_BUFFER_OVERFLOW)
{
/* The file we're reading may end with a newline, remove it. */
if (cbRead == cbBuf)
pszBuf[cbRead - 1] = '\0';
else
{
AssertRC(rc);
pszBuf[cbRead] = '\0';
if (cbRead > 0 && pszBuf[cbRead - 1] == '\n')
pszBuf[cbRead - 1] = '\0';
}
}
RTLinuxSysFsClose(fd);
}
else
{
rc = RTErrConvertFromErrno(errno);
switch (rc)
{
case VINF_SUCCESS:
AssertFailed();
case VERR_FILE_NOT_FOUND:
case VERR_PATH_NOT_FOUND:
case VERR_IS_A_DIRECTORY:
rc = VERR_NOT_SUPPORTED;
break;
case VERR_PERMISSION_DENIED:
case VERR_ACCESS_DENIED:
rc = VERR_ACCESS_DENIED;
break;
}
}
return rc;
}
RT_EXPORT_SYMBOL(RTSystemQueryDmiString);
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