RTProcIsRunningByName-linux.cpp revision 7c9b13ed27d21ab52e83783b784fb41ebac52872
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * IPRT - RTProcIsRunningByName, Linux implementation.
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * Copyright (C) 2009 Sun Microsystems, Inc.
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * available from http://www.virtualbox.org. This file is free software;
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * you can redistribute it and/or modify it under the terms of the GNU
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * General Public License (GPL) as published by the Free Software
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * The contents of this file may alternatively be used under the terms
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * of the Common Development and Distribution License Version 1.0
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3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * VirtualBox OSE distribution, in which case the provisions of the
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * CDDL are applicable instead of those of the GPL.
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * You may elect to license modified versions of this file under the
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * terms and conditions of either the GPL or the CDDL or both.
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * additional information or have any questions.
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync/*******************************************************************************
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync* Header Files *
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync*******************************************************************************/
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsyncRTR3DECL(bool) RTProcIsRunningByName(const char *pszName)
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * Quick validation.
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync return false;
bdff0e400f2c47a55235db3f869058538d54afa6vboxsync bool fFoundIt = false;
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync AssertMsgRCReturn(rc, ("RTDirOpen on /proc failed: rc=%Rrc\n", rc), false);
bdff0e400f2c47a55235db3f869058538d54afa6vboxsync while (RT_SUCCESS(RTDirRead(pDir, &DirEntry, NULL)))
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync * Filter numeric directory entries only.
7c9b13ed27d21ab52e83783b784fb41ebac52872vboxsync * Try readlink on exe first since it's more faster and reliable.
7c9b13ed27d21ab52e83783b784fb41ebac52872vboxsync * Fall back on reading the first line in cmdline if that fails
7c9b13ed27d21ab52e83783b784fb41ebac52872vboxsync * (access errors typically). cmdline is unreliable as it might
7c9b13ed27d21ab52e83783b784fb41ebac52872vboxsync * contain whatever the execv caller passes as argv[0].
7c9b13ed27d21ab52e83783b784fb41ebac52872vboxsync RTStrPrintf(szName, sizeof(szName), "/proc/%s/exe", &DirEntry.szName[0]);
7c9b13ed27d21ab52e83783b784fb41ebac52872vboxsync int cchLink = readlink(szName, szExe, sizeof(szExe) - 1);
7c9b13ed27d21ab52e83783b784fb41ebac52872vboxsync RTStrPrintf(szName, sizeof(szName), "/proc/%s/cmdline", &DirEntry.szName[0]);
7c9b13ed27d21ab52e83783b784fb41ebac52872vboxsync * We are interested on the file name part only.
7c9b13ed27d21ab52e83783b784fb41ebac52872vboxsync /* Found it! */
7c9b13ed27d21ab52e83783b784fb41ebac52872vboxsync return true;
3cc33d1e7558a0f4a04b59bfe914a24d0b9a2329vboxsync return false;