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authorJeff Liu <jeff.liu@oracle.com>2013-01-30 16:32:47 +0800
committerDavid Sterba <dsterba@suse.cz>2013-02-26 19:27:22 +0100
commitefbbbc88cbee3f28c6b4a4c34623e13dc1e2e700 (patch)
tree39ac9e2f53a6e9953b0e9d7e6f04045beaac9583 /btrfslabel.c
parent63a44771a4a7ea1b4a36687bf8fe11f3bd54e87e (diff)
btrfs-progs: move btrfslabel.[c|h] stuff to utils.[c|h]
Clean btrfslabel.[c|h] out of the source tree and move those related functions to utils.[c|h]. CC: Gene Czarcinski <gene@czarc.net> Signed-off-by: Jie Liu <jeff.liu@oracle.com> Signed-off-by: David Sterba <dsterba@suse.cz>
Diffstat (limited to 'btrfslabel.c')
-rw-r--r--btrfslabel.c154
1 files changed, 0 insertions, 154 deletions
diff --git a/btrfslabel.c b/btrfslabel.c
deleted file mode 100644
index dcc776e5..00000000
--- a/btrfslabel.c
+++ /dev/null
@@ -1,154 +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 int set_label_unmounted(const char *dev, const char *label)
-{
- struct btrfs_trans_handle *trans;
- struct btrfs_root *root;
- int ret;
-
- ret = check_mounted(dev);
- if (ret < 0) {
- fprintf(stderr, "FATAL: error checking %s mount status\n", dev);
- return -1;
- }
- if (ret > 0) {
- fprintf(stderr, "ERROR: dev %s is mounted, use mount point\n",
- dev);
- return -1;
- }
-
- if (strlen(label) > BTRFS_LABEL_SIZE - 1) {
- fprintf(stderr, "ERROR: Label %s is too long (max %d)\n",
- label, BTRFS_LABEL_SIZE - 1);
- return -1;
- }
-
- /* Open the super_block at the default location
- * and as read-write.
- */
- root = open_ctree(dev, 0, 1);
- if (!root) /* errors are printed by open_ctree() */
- return -1;
-
- trans = btrfs_start_transaction(root, 1);
- snprintf(root->fs_info->super_copy.label, BTRFS_LABEL_SIZE, "%s",
- label);
- btrfs_commit_transaction(trans, root);
-
- /* Now we close it since we are done. */
- close_ctree(root);
- return 0;
-}
-
-static int set_label_mounted(const char *mount_path, const char *label)
-{
- int fd;
-
- fd = open(mount_path, O_RDONLY | O_NOATIME);
- if (fd < 0) {
- fprintf(stderr, "ERROR: unable access to '%s'\n", mount_path);
- return -1;
- }
-
- if (ioctl(fd, BTRFS_IOC_SET_FSLABEL, label) < 0) {
- fprintf(stderr, "ERROR: unable to set label %s\n",
- strerror(errno));
- close(fd);
- return -1;
- }
-
- return 0;
-}
-
-int 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);
-
- if(!root)
- return -1;
-
- fprintf(stdout, "%s\n", root->fs_info->super_copy.label);
-
- /* Now we close it since we are done. */
- close_ctree(root);
- return 0;
-}
-
-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;
- }
- ret = get_label_unmounted(btrfs_dev);
- return ret;
-}
-
-
-int set_label(char *btrfs_dev, char *label)
-{
- return is_existing_blk_or_reg_file(btrfs_dev) ?
- set_label_unmounted(btrfs_dev, label) :
- set_label_mounted(btrfs_dev, label);
-}