| /* |
| * pivot_root.c - Change the root file system |
| * |
| * Copyright (C) 2000 Werner Almesberger |
| * |
| * This file 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; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This file 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. |
| */ |
| #include <stdio.h> |
| #include <sys/syscall.h> |
| #include <unistd.h> |
| |
| #define pivot_root(new_root,put_old) syscall(SYS_pivot_root,new_root,put_old) |
| |
| int main(int argc, const char **argv) |
| { |
| if (argc != 3) { |
| fprintf(stderr, "usage: %s new_root put_old\n", argv[0]); |
| return 1; |
| } |
| if (pivot_root(argv[1], argv[2]) < 0) { |
| perror("pivot_root"); |
| return 1; |
| } |
| return 0; |
| } |
