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Diffstat (limited to '')
-rw-r--r-- | src/VBox/Runtime/r3/nt/RTProcQueryParent-r3-nt.cpp | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/nt/RTProcQueryParent-r3-nt.cpp b/src/VBox/Runtime/r3/nt/RTProcQueryParent-r3-nt.cpp new file mode 100644 index 00000000..650131d1 --- /dev/null +++ b/src/VBox/Runtime/r3/nt/RTProcQueryParent-r3-nt.cpp @@ -0,0 +1,103 @@ +/* $Id: RTProcQueryParent-r3-nt.cpp $ */ +/** @file + * IPRT - Process, Windows. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox 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. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#define LOG_GROUP RTLOGGROUP_PROCESS +#include <iprt/nt/nt.h> + +#include <iprt/process.h> +#include "internal/iprt.h" + +#include <iprt/assert.h> +#include <iprt/errcore.h> + + + +RTR3DECL(int) RTProcQueryParent(RTPROCESS hProcess, PRTPROCESS phParent) +{ + NTSTATUS rcNt; + HANDLE hClose = RTNT_INVALID_HANDLE_VALUE; + HANDLE hNtProc; + + /* + * Open the process. We take a shortcut if it's the current process. + */ + if (hProcess == RTProcSelf()) + hNtProc = NtCurrentProcess(); + else + { + CLIENT_ID ClientId; + ClientId.UniqueProcess = (HANDLE)(uintptr_t)hProcess; + ClientId.UniqueThread = NULL; + + OBJECT_ATTRIBUTES ObjAttrs; + InitializeObjectAttributes(&ObjAttrs, NULL, OBJ_CASE_INSENSITIVE, NULL, NULL); + + rcNt = NtOpenProcess(&hClose, PROCESS_QUERY_LIMITED_INFORMATION, &ObjAttrs, &ClientId); + if (!NT_SUCCESS(rcNt)) + rcNt = NtOpenProcess(&hClose, PROCESS_QUERY_INFORMATION, &ObjAttrs, &ClientId); + if (!NT_SUCCESS(rcNt)) + return RTErrConvertFromNtStatus(rcNt); + hNtProc = hClose; + } + + /* + * Query the information. + */ + int rc; + PROCESS_BASIC_INFORMATION BasicInfo; + ULONG cbIgn; + rcNt = NtQueryInformationProcess(hNtProc, ProcessBasicInformation, &BasicInfo, sizeof(BasicInfo), &cbIgn); + if (NT_SUCCESS(rcNt)) + { + *phParent = BasicInfo.InheritedFromUniqueProcessId; + rc = VINF_SUCCESS; + } + else + rc = RTErrConvertFromNtStatus(rcNt); + + /* + * Clean up. + */ + if (hClose != RTNT_INVALID_HANDLE_VALUE) + NtClose(hClose); + + return rc; +} + |