| 1 | /* $Id: RTProcIsRunningByName-linux.cpp 16999 2009-02-23 09:55:20Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - RTProcIsRunningByName, Linux implementation.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2009 Sun Microsystems, Inc.
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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.215389.xyz. 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 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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| 27 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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| 28 | * additional information or have any questions.
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| 29 | */
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| 30 |
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| 31 | /*******************************************************************************
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| 32 | * Header Files *
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| 33 | *******************************************************************************/
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| 34 | #define LOG_GROUP RTLOGGROUP_PROCESS
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| 35 | #include <iprt/string.h>
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| 36 | #include <iprt/process.h>
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| 37 | #include <iprt/dir.h>
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| 38 | #include <iprt/path.h>
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| 39 | #include <iprt/param.h>
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| 40 | #include <iprt/assert.h>
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| 41 |
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| 42 | #include <unistd.h>
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| 43 |
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| 44 |
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| 45 | RTR3DECL(bool) RTProcIsRunningByName(const char *pszName)
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| 46 | {
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| 47 | /*
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| 48 | * Quick validation.
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| 49 | */
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| 50 | if (!pszName)
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| 51 | return false;
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| 52 |
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| 53 | PRTDIR pDir;
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| 54 | int rc = RTDirOpen(&pDir, "/proc");
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| 55 | AssertMsgRCReturn(rc, ("RTDirOpen on /proc failed: rc=%Rrc\n", rc), false);
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| 56 | if (RT_SUCCESS(rc))
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| 57 | {
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| 58 | RTDIRENTRY DirEntry;
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| 59 | while(RT_SUCCESS(RTDirRead(pDir, &DirEntry, NULL)))
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| 60 | {
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| 61 | /*
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| 62 | * Filter numeric directory entries only.
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| 63 | */
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| 64 | if (DirEntry.enmType == RTDIRENTRYTYPE_DIRECTORY &&
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| 65 | RTStrToUInt32(DirEntry.szName) > 0)
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| 66 | {
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| 67 | /*
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| 68 | * Build the path to the proc exec file of this process.
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| 69 | */
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| 70 | char *pszPath;
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| 71 | RTStrAPrintf(&pszPath, "/proc/%s/exe", DirEntry.szName);
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| 72 | /*
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| 73 | * Read the file name of the link pointing at.
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| 74 | */
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| 75 | char szExe[RTPATH_MAX];
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| 76 | size_t cchExe = sizeof(szExe)-1;
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| 77 | int cchLink = readlink(pszPath, szExe, cchExe);
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| 78 | if (cchLink > 0 && (size_t)cchLink <= cchExe)
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| 79 | {
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| 80 | szExe[cchLink] = '\0';
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| 81 | /*
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| 82 | * We are interested on the file name part only.
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| 83 | */
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| 84 | char *pszFilename = RTPathFilename(szExe);
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| 85 | if (RTStrCmp(pszFilename, pszName) == 0)
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| 86 | {
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| 87 | /*
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| 88 | * Clean up
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| 89 | */
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| 90 | RTStrFree(pszPath);
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| 91 | RTDirClose(pDir);
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| 92 | return true;
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| 93 | }
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| 94 | }
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| 95 | RTStrFree(pszPath);
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| 96 | }
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| 97 | }
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| 98 | RTDirClose(pDir);
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| 99 | }
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| 100 |
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| 101 | return false;
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| 102 | }
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| 103 |
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