101 lines
3.2 KiB
C
101 lines
3.2 KiB
C
/*
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* Copyright (c) 2021-2021 Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include "fs/file.h"
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#include "fs/fs_operation.h"
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#include "fs/fd_table.h"
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#include "unistd.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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void CloseOnExec(struct files_struct *files)
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{
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int sysFd;
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if ((files == NULL) || (files->fdt == NULL)) {
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return;
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}
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for (int i = 0; i < files->fdt->max_fds; i++) {
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if (FD_ISSET(i, files->fdt->proc_fds) &&
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FD_ISSET(i, files->fdt->cloexec_fds)) {
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sysFd = DisassociateProcessFd(i);
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if (sysFd >= 0) {
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close(sysFd);
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}
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FreeProcessFd(i);
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}
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}
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}
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void SetCloexecFlag(int procFd)
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{
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struct fd_table_s *fdt = GetFdTable();
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if (fdt == NULL) {
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return;
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}
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FileTableLock(fdt);
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FD_SET(procFd, fdt->cloexec_fds);
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FileTableUnLock(fdt);
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return;
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}
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bool CheckCloexecFlag(int procFd)
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{
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bool isCloexec = 0;
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struct fd_table_s *fdt = GetFdTable();
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if (fdt == NULL) {
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return false;
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}
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FileTableLock(fdt);
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isCloexec = FD_ISSET(procFd, fdt->cloexec_fds);
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FileTableUnLock(fdt);
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return isCloexec;
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}
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void ClearCloexecFlag(int procFd)
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{
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struct fd_table_s *fdt = GetFdTable();
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if (fdt == NULL) {
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return;
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}
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FileTableLock(fdt);
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FD_CLR(procFd, fdt->cloexec_fds);
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FileTableUnLock(fdt);
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return;
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}
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