| 1 | /* $Id: RTSystemQueryOSInfo-posix.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - RTSystemQueryOSInfo, POSIX implementation.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2008-2019 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.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 (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 | /*********************************************************************************************************************************
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| 29 | * Header Files *
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| 30 | *********************************************************************************************************************************/
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| 31 | #include <iprt/system.h>
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| 32 | #include <iprt/assert.h>
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| 33 | #include <iprt/string.h>
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| 34 | #include <iprt/errcore.h>
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| 35 |
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| 36 | #include <errno.h>
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| 37 | #include <sys/utsname.h>
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| 38 |
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| 39 |
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| 40 | RTDECL(int) RTSystemQueryOSInfo(RTSYSOSINFO enmInfo, char *pszInfo, size_t cchInfo)
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| 41 | {
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| 42 | /*
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| 43 | * Quick validation.
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| 44 | */
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| 45 | AssertReturn(enmInfo > RTSYSOSINFO_INVALID && enmInfo < RTSYSOSINFO_END, VERR_INVALID_PARAMETER);
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| 46 | AssertPtrReturn(pszInfo, VERR_INVALID_POINTER);
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| 47 | if (!cchInfo)
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| 48 | return VERR_BUFFER_OVERFLOW;
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| 49 |
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| 50 | /*
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| 51 | * Handle the request.
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| 52 | */
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| 53 | switch (enmInfo)
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| 54 | {
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| 55 | case RTSYSOSINFO_PRODUCT:
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| 56 | case RTSYSOSINFO_RELEASE:
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| 57 | case RTSYSOSINFO_VERSION:
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| 58 | {
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| 59 | struct utsname UtsInfo;
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| 60 | if (uname(&UtsInfo) < 0)
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| 61 | return RTErrConvertFromErrno(errno);
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| 62 | const char *pszSrc;
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| 63 | switch (enmInfo)
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| 64 | {
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| 65 | case RTSYSOSINFO_PRODUCT: pszSrc = UtsInfo.sysname; break;
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| 66 | case RTSYSOSINFO_RELEASE: pszSrc = UtsInfo.release; break;
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| 67 | case RTSYSOSINFO_VERSION: pszSrc = UtsInfo.version; break;
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| 68 | default: AssertFatalFailed(); /* screw gcc */
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| 69 | }
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| 70 | size_t cch = strlen(pszSrc);
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| 71 | if (cch < cchInfo)
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| 72 | {
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| 73 | memcpy(pszInfo, pszSrc, cch + 1);
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| 74 | return VINF_SUCCESS;
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| 75 | }
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| 76 | memcpy(pszInfo, pszSrc, cchInfo - 1);
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| 77 | pszInfo[cchInfo - 1] = '\0';
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| 78 | return VERR_BUFFER_OVERFLOW;
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| 79 | }
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| 80 |
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| 81 |
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| 82 | case RTSYSOSINFO_SERVICE_PACK:
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| 83 | default:
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| 84 | *pszInfo = '\0';
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| 85 | return VERR_NOT_SUPPORTED;
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| 86 | }
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| 87 |
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| 88 | return VINF_SUCCESS;
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| 89 | }
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| 90 |
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