diff options
Diffstat (limited to 'btrfslabel.c')
| -rw-r--r-- | btrfslabel.c | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/btrfslabel.c b/btrfslabel.c deleted file mode 100644 index c9f4684..0000000 --- a/btrfslabel.c +++ /dev/null @@ -1,121 +0,0 @@ -/* - * Copyright (C) 2008 Morey Roof. All rights reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public - * License v2 as published by the Free Software Foundation. - * - * 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, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 021110-1307, USA. - */ - -#define _GNU_SOURCE - -#ifndef __CHECKER__ -#include <sys/ioctl.h> -#include <sys/mount.h> -#include "ioctl.h" -#endif /* __CHECKER__ */ - -#include <stdio.h> -#include <stdlib.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <dirent.h> -#include <fcntl.h> -#include <unistd.h> -#include <linux/fs.h> -#include <linux/limits.h> -#include <ctype.h> -#include "kerncompat.h" -#include "ctree.h" -#include "utils.h" -#include "version.h" -#include "disk-io.h" -#include "transaction.h" - -#define MOUNTED 1 -#define UNMOUNTED 2 -#define GET_LABEL 3 -#define SET_LABEL 4 - -static void change_label_unmounted(char *dev, char *nLabel) -{ - struct btrfs_root *root; - struct btrfs_trans_handle *trans; - - /* Open the super_block at the default location - * and as read-write. - */ - root = open_ctree(dev, 0, 1); - - trans = btrfs_start_transaction(root, 1); - strncpy(root->fs_info->super_copy.label, nLabel, BTRFS_LABEL_SIZE); - btrfs_commit_transaction(trans, root); - - /* Now we close it since we are done. */ - close_ctree(root); -} - -static void get_label_unmounted(char *dev) -{ - struct btrfs_root *root; - - /* Open the super_block at the default location - * and as read-only. - */ - root = open_ctree(dev, 0, 0); - - fprintf(stdout, "%s\n", root->fs_info->super_copy.label); - - /* Now we close it since we are done. */ - close_ctree(root); -} - -int get_label(char *btrfs_dev) -{ - - int ret; - ret = check_mounted(btrfs_dev); - if (ret < 0) - { - fprintf(stderr, "FATAL: error checking %s mount status\n", btrfs_dev); - return -1; - } - - if(ret != 0) - { - fprintf(stderr, "FATAL: the filesystem has to be unmounted\n"); - return -2; - } - get_label_unmounted(btrfs_dev); - return 0; -} - - -int set_label(char *btrfs_dev, char *nLabel) -{ - - int ret; - ret = check_mounted(btrfs_dev); - if (ret < 0) - { - fprintf(stderr, "FATAL: error checking %s mount status\n", btrfs_dev); - return -1; - } - - if(ret != 0) - { - fprintf(stderr, "FATAL: the filesystem has to be unmounted\n"); - return -2; - } - change_label_unmounted(btrfs_dev, nLabel); - return 0; -} |