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#include <stdio.h>
#include <stdlib.h>
#include <uuid/uuid.h>
#include "kerncompat.h"
#include "radix-tree.h"
#include "ctree.h"
#include "disk-io.h"
#include "print-tree.h"
#include "transaction.h"
int main(int ac, char **av) {
struct btrfs_super_block super;
struct btrfs_root *root;
struct btrfs_path path;
struct btrfs_key key;
struct btrfs_root_item *ri;
struct btrfs_leaf *leaf;
struct btrfs_key found_key;
char uuidbuf[37];
int ret;
int slot;
if (ac != 2) {
fprintf(stderr, "usage: %s device\n", av[0]);
exit(1);
}
radix_tree_init();
root = open_ctree(av[1], &super);
if (!root) {
fprintf(stderr, "unable to open %s\n", av[1]);
exit(1);
}
printf("root tree\n");
btrfs_print_tree(root->fs_info->tree_root,
root->fs_info->tree_root->node);
btrfs_init_path(&path);
key.offset = 0;
key.objectid = 0;
key.flags = 0;
btrfs_set_key_type(&key, BTRFS_ROOT_ITEM_KEY);
ret = btrfs_search_slot(NULL, root->fs_info->tree_root,
&key, &path, 0, 0);
BUG_ON(ret < 0);
while(1) {
leaf = &path.nodes[0]->leaf;
slot = path.slots[0];
if (slot >= btrfs_header_nritems(&leaf->header)) {
ret = btrfs_next_leaf(root, &path);
if (ret != 0)
break;
leaf = &path.nodes[0]->leaf;
slot = path.slots[0];
}
btrfs_disk_key_to_cpu(&found_key,
&leaf->items[path.slots[0]].key);
if (btrfs_key_type(&found_key) == BTRFS_ROOT_ITEM_KEY) {
struct btrfs_buffer *buf;
ri = btrfs_item_ptr(leaf, path.slots[0],
struct btrfs_root_item);
buf = read_tree_block(root->fs_info->tree_root,
btrfs_root_blocknr(ri));
switch(found_key.objectid) {
case BTRFS_ROOT_TREE_OBJECTID:
printf("root ");
break;
case BTRFS_EXTENT_TREE_OBJECTID:
printf("extent tree ");
break;
case BTRFS_INODE_MAP_OBJECTID:
printf("inode map");
break;
}
printf("tree %Lu %Lu %u\n", found_key.objectid,
found_key.offset, found_key.flags);
btrfs_print_tree(root, buf);
}
path.slots[0]++;
}
btrfs_release_path(root, &path);
printf("total blocks %Lu\n", btrfs_super_total_blocks(&super));
printf("blocks used %Lu\n", btrfs_super_blocks_used(&super));
uuidbuf[36] = '\0';
uuid_unparse(super.fsid, uuidbuf);
printf("uuid %s\n", uuidbuf);
return 0;
}
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