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/* $Id: RTSystemQueryOSInfo-posix.cpp $ */
/** @file
* IPRT - RTSystemQueryOSInfo, POSIX implementation.
*/
/*
* Copyright (C) 2008-2019 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 <iprt/assert.h>
#include <iprt/string.h>
#include <iprt/errcore.h>
#include <errno.h>
#include <sys/utsname.h>
RTDECL(int) RTSystemQueryOSInfo(RTSYSOSINFO enmInfo, char *pszInfo, size_t cchInfo)
{
/*
* Quick validation.
*/
AssertReturn(enmInfo > RTSYSOSINFO_INVALID && enmInfo < RTSYSOSINFO_END, VERR_INVALID_PARAMETER);
AssertPtrReturn(pszInfo, VERR_INVALID_POINTER);
if (!cchInfo)
return VERR_BUFFER_OVERFLOW;
/*
* Handle the request.
*/
switch (enmInfo)
{
case RTSYSOSINFO_PRODUCT:
case RTSYSOSINFO_RELEASE:
case RTSYSOSINFO_VERSION:
{
struct utsname UtsInfo;
if (uname(&UtsInfo) < 0)
return RTErrConvertFromErrno(errno);
const char *pszSrc;
switch (enmInfo)
{
case RTSYSOSINFO_PRODUCT: pszSrc = UtsInfo.sysname; break;
case RTSYSOSINFO_RELEASE: pszSrc = UtsInfo.release; break;
case RTSYSOSINFO_VERSION: pszSrc = UtsInfo.version; break;
default: AssertFatalFailed(); /* screw gcc */
}
size_t cch = strlen(pszSrc);
if (cch < cchInfo)
{
memcpy(pszInfo, pszSrc, cch + 1);
return VINF_SUCCESS;
}
memcpy(pszInfo, pszSrc, cchInfo - 1);
pszInfo[cchInfo - 1] = '\0';
return VERR_BUFFER_OVERFLOW;
}
case RTSYSOSINFO_SERVICE_PACK:
default:
*pszInfo = '\0';
return VERR_NOT_SUPPORTED;
}
return VINF_SUCCESS;
}
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