/* Run a test case in an isolated namespace. Copyright (C) 2018 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */#define _FILE_OFFSET_BITS 64#include<stdio.h>#include<stdlib.h>#include<string.h>#include<sched.h>#include<sys/syscall.h>#include<unistd.h>#include<sys/types.h>#include<dirent.h>#include<string.h>#include<sys/stat.h>#include<sys/fcntl.h>#include<sys/file.h>#include<sys/wait.h>#include<stdarg.h>#include<sys/sysmacros.h>#include<ctype.h>#include<utime.h>#include<errno.h>#include<error.h>#include<libc-pointer-arith.h>#ifdef __linux__#include<sys/mount.h>#endif#include<support/support.h>#include<support/xunistd.h>#include"check.h"#inclu