/
githubmirror
/
glibc
Обзор
Документация
Войти
/
githubmirror
/
glibc
Код
Запросы
0
Пакеты
0
Релизы
0
Аналитика
Безопасность
master
support/support_enter_mount_namespace.c
47 строк
2 KB
Paul Eggert
Update copyright dates with scripts/update-copyrights
02 янв 2026, 00:42
02 янв 2026, 00:42
66f3e92
Код
Авторство
О чём код?
/* Enter a mount namespace. Copyright (C) 2017-2026 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 <https://www.gnu.org/licenses/>. */ #include <support/namespace.h> #include <sched.h> #include <stdio.h> #ifdef CLONE_NEWNS # include <sys/mount.h> #endif /* CLONE_NEWNS */ bool support_enter_mount_namespace (void) { #ifdef CLONE_NEWNS if (unshare (CLONE_NEWNS) == 0) { /* On some systems, / is marked as MS_SHARED, which means that mounts within the namespace leak to the rest of the system, which is not what we want. */ if (mount ("none", "/", NULL, MS_REC | MS_PRIVATE, NULL) != 0) { printf ("warning: making the mount namespace private failed: %m\n"); return false; } return true; } else printf ("warning: unshare (CLONE_NEWNS) failed: %m\n"); #endif /* CLONE_NEWNS */ return false; }