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/* $Id: RTProcDaemonize-generic.cpp $ */
/** @file
* IPRT - RTProcDaemonize, generic implementation.
*/
/*
* Copyright (C) 2010-2019 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 *
*********************************************************************************************************************************/
#define LOG_GROUP RTLOGGROUP_PROCESS
#include <iprt/process.h>
#include "internal/iprt.h"
#include <iprt/assert.h>
#include <iprt/env.h>
#include <iprt/errcore.h>
#include <iprt/file.h>
#include <iprt/mem.h>
#include <iprt/string.h>
#include "internal/process.h"
RTR3DECL(int) RTProcDaemonize(const char * const *papszArgs, const char *pszDaemonizedOpt)
{
/*
* Get the executable name.
* If this asserts, it's probably because rtR3Init hasn't been called.
*/
char szExecPath[RTPATH_MAX];
AssertReturn(RTProcGetExecutablePath(szExecPath, sizeof(szExecPath)) == szExecPath, VERR_WRONG_ORDER);
/*
* Create a copy of the argument list with the daemonized option appended.
*/
unsigned cArgs = 0;
while (papszArgs[cArgs])
cArgs++;
char const **papszNewArgs = (char const **)RTMemAlloc(sizeof(const char *) * (cArgs + 2));
if (!papszNewArgs)
return VERR_NO_MEMORY;
for (unsigned i = 0; i < cArgs; i++)
papszNewArgs[i] = papszArgs[i];
papszNewArgs[cArgs] = pszDaemonizedOpt;
papszNewArgs[cArgs + 1] = NULL;
/*
* Open the bitbucket handles and create the detached process.
*/
RTHANDLE hStdIn;
int rc = RTFileOpenBitBucket(&hStdIn.u.hFile, RTFILE_O_READ);
if (RT_SUCCESS(rc))
{
hStdIn.enmType = RTHANDLETYPE_FILE;
RTHANDLE hStdOutAndErr;
rc = RTFileOpenBitBucket(&hStdOutAndErr.u.hFile, RTFILE_O_WRITE);
if (RT_SUCCESS(rc))
{
hStdOutAndErr.enmType = RTHANDLETYPE_FILE;
rc = RTProcCreateEx(szExecPath, papszNewArgs, RTENV_DEFAULT,
RTPROC_FLAGS_DETACHED | RTPROC_FLAGS_SAME_CONTRACT,
&hStdIn, &hStdOutAndErr, &hStdOutAndErr,
NULL /*pszAsUser*/, NULL /*pszPassword*/, NULL /*phProcess*/);
RTFileClose(hStdOutAndErr.u.hFile);
}
RTFileClose(hStdOutAndErr.u.hFile);
}
RTMemFree(papszNewArgs);
return rc;
}
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