mirror of
https://github.com/kdave/btrfs-progs
synced 2024-12-16 03:15:39 +00:00
106 lines
2.9 KiB
C
106 lines
2.9 KiB
C
/*
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* Copyright (C) 2007 Oracle. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License v2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <uuid/uuid.h>
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#include "kerncompat.h"
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#include "radix-tree.h"
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#include "ctree.h"
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#include "disk-io.h"
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#include "print-tree.h"
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#include "transaction.h"
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int main(int ac, char **av) {
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struct btrfs_super_block super;
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struct btrfs_root *root;
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struct btrfs_path path;
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struct btrfs_key key;
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struct btrfs_root_item *ri;
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struct btrfs_leaf *leaf;
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struct btrfs_key found_key;
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char uuidbuf[37];
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int ret;
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int slot;
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if (ac != 2) {
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fprintf(stderr, "usage: %s device\n", av[0]);
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exit(1);
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}
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radix_tree_init();
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root = open_ctree(av[1], &super);
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if (!root) {
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fprintf(stderr, "unable to open %s\n", av[1]);
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exit(1);
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}
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printf("root tree\n");
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btrfs_print_tree(root->fs_info->tree_root,
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root->fs_info->tree_root->node);
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btrfs_init_path(&path);
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key.offset = 0;
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key.objectid = 0;
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btrfs_set_key_type(&key, BTRFS_ROOT_ITEM_KEY);
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ret = btrfs_search_slot(NULL, root->fs_info->tree_root,
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&key, &path, 0, 0);
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BUG_ON(ret < 0);
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while(1) {
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leaf = &path.nodes[0]->leaf;
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slot = path.slots[0];
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if (slot >= btrfs_header_nritems(&leaf->header)) {
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ret = btrfs_next_leaf(root, &path);
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if (ret != 0)
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break;
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leaf = &path.nodes[0]->leaf;
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slot = path.slots[0];
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}
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btrfs_disk_key_to_cpu(&found_key,
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&leaf->items[path.slots[0]].key);
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if (btrfs_key_type(&found_key) == BTRFS_ROOT_ITEM_KEY) {
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struct btrfs_buffer *buf;
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ri = btrfs_item_ptr(leaf, path.slots[0],
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struct btrfs_root_item);
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buf = read_tree_block(root->fs_info->tree_root,
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btrfs_root_bytenr(ri),
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root->leafsize);
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switch(found_key.objectid) {
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case BTRFS_ROOT_TREE_OBJECTID:
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printf("root ");
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break;
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case BTRFS_EXTENT_TREE_OBJECTID:
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printf("extent tree ");
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break;
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}
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printf("tree %llu %u %llu\n",
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(unsigned long long)found_key.objectid,
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found_key.type,
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(unsigned long long)found_key.offset);
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btrfs_print_tree(root, buf);
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}
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path.slots[0]++;
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}
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btrfs_release_path(root, &path);
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printf("total bytes %llu\n",
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(unsigned long long)btrfs_super_total_bytes(&super));
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printf("bytes used %llu\n",
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(unsigned long long)btrfs_super_bytes_used(&super));
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uuidbuf[36] = '\0';
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uuid_unparse(super.fsid, uuidbuf);
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printf("uuid %s\n", uuidbuf);
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return 0;
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}
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