static int copy_metadata(struct btrfs_root *root, int fd,
struct btrfs_key *key)
{
struct btrfs_path *path;
struct btrfs_inode_item *inode_item;
int ret;
path = btrfs_alloc_path();
if (!path) {
fprintf(stderr, "ERROR: Ran out of memory\n");
return -ENOMEM;
}
ret = btrfs_lookup_inode(NULL, root, path, key, 0);
if (ret == 0) {
struct btrfs_timespec *bts;
struct timespec times[2];
inode_item = btrfs_item_ptr(path->nodes[0], path->slots[0],
struct btrfs_inode_item);
ret = fchown(fd, btrfs_inode_uid(path->nodes[0], inode_item),
btrfs_inode_gid(path->nodes[0], inode_item));
if (ret) {
fprintf(stderr, "ERROR: Failed to change owner: %s\n",
strerror(errno));
goto out;
}
ret = fchmod(fd, btrfs_inode_mode(path->nodes[0], inode_item));
if (ret) {
fprintf(stderr, "ERROR: Failed to change mode: %s\n",
strerror(errno));
goto out;
}
bts = btrfs_inode_atime(inode_item);
times[0].tv_sec = btrfs_timespec_sec(path->nodes[0], bts);
times[0].tv_nsec = btrfs_timespec_nsec(path->nodes[0], bts);
bts = btrfs_inode_mtime(inode_item);
times[1].tv_sec = btrfs_timespec_sec(path->nodes[0], bts);
times[1].tv_nsec = btrfs_timespec_nsec(path->nodes[0], bts);
ret = futimens(fd, times);
if (ret) {
fprintf(stderr, "ERROR: Failed to set times: %s\n",
strerror(errno));
goto out;
}
}
out:
btrfs_free_path(path);
return ret;
}
static int copy_file(struct btrfs_root *root, int fd, struct btrfs_key *key,
const char *file)
{
struct extent_buffer *leaf;
struct btrfs_path *path;
struct btrfs_file_extent_item *fi;
struct btrfs_inode_item *inode_item;
struct btrfs_timespec *bts;
struct btrfs_key found_key;
int ret;
int extent_type;
int compression;
int loops = 0;
u64 found_size = 0;
struct timespec times[2];
int times_ok = 0;
path = btrfs_alloc_path();
if (!path) {
fprintf(stderr, "Ran out of memory\n");
return -ENOMEM;
}
ret = btrfs_lookup_inode(NULL, root, path, key, 0);
if (ret == 0) {
inode_item = btrfs_item_ptr(path->nodes[0], path->slots[0],
struct btrfs_inode_item);
found_size = btrfs_inode_size(path->nodes[0], inode_item);
if (restore_metadata) {
/*
* Change the ownership and mode now, set times when
* copyout is finished.
*/
ret = fchown(fd, btrfs_inode_uid(path->nodes[0], inode_item),
btrfs_inode_gid(path->nodes[0], inode_item));
if (ret && !ignore_errors)
goto out;
ret = fchmod(fd, btrfs_inode_mode(path->nodes[0], inode_item));
if (ret && !ignore_errors)
goto out;
bts = btrfs_inode_atime(inode_item);
times[0].tv_sec = btrfs_timespec_sec(path->nodes[0], bts);
times[0].tv_nsec = btrfs_timespec_nsec(path->nodes[0], bts);
bts = btrfs_inode_mtime(inode_item);
times[1].tv_sec = btrfs_timespec_sec(path->nodes[0], bts);
times[1].tv_nsec = btrfs_timespec_nsec(path->nodes[0], bts);
times_ok = 1;
}
}
static int copy_metadata(struct btrfs_root *root, int fd,
struct btrfs_key *key)
{
struct btrfs_path path;
struct btrfs_inode_item *inode_item;
int ret;
btrfs_init_path(&path);
ret = btrfs_lookup_inode(NULL, root, &path, key, 0);
if (ret == 0) {
struct btrfs_timespec *bts;
struct timespec times[2];
inode_item = btrfs_item_ptr(path.nodes[0], path.slots[0],
struct btrfs_inode_item);
ret = fchown(fd, btrfs_inode_uid(path.nodes[0], inode_item),
btrfs_inode_gid(path.nodes[0], inode_item));
if (ret) {
error("failed to change owner: %m");
goto out;
}
ret = fchmod(fd, btrfs_inode_mode(path.nodes[0], inode_item));
if (ret) {
error("failed to change mode: %m");
goto out;
}
bts = btrfs_inode_atime(inode_item);
times[0].tv_sec = btrfs_timespec_sec(path.nodes[0], bts);
times[0].tv_nsec = btrfs_timespec_nsec(path.nodes[0], bts);
bts = btrfs_inode_mtime(inode_item);
times[1].tv_sec = btrfs_timespec_sec(path.nodes[0], bts);
times[1].tv_nsec = btrfs_timespec_nsec(path.nodes[0], bts);
ret = futimens(fd, times);
if (ret) {
error("failed to set times: %m");
goto out;
}
}
out:
btrfs_release_path(&path);
return ret;
}
static void print_timespec(struct extent_buffer *eb,
struct btrfs_timespec *timespec, const char *prefix,
const char *suffix)
{
struct tm tm;
u64 tmp_u64;
u32 tmp_u32;
time_t tmp_time;
char timestamp[256];
tmp_u64 = btrfs_timespec_sec(eb, timespec);
tmp_u32 = btrfs_timespec_nsec(eb, timespec);
tmp_time = tmp_u64;
localtime_r(&tmp_time, &tm);
strftime(timestamp, sizeof(timestamp),
"%Y-%m-%d %H:%M:%S", &tm);
printf("%s%llu.%u (%s)%s", prefix, (unsigned long long)tmp_u64, tmp_u32,
timestamp, suffix);
}
