/* Unlink @subject from the WIM image.
*
* This is the journaled version, so it can be rolled back. */
static int
journaled_unlink(struct update_command_journal *j, struct wim_dentry *subject)
{
struct wim_dentry *parent;
struct update_primitive prim;
int ret;
if (dentry_is_root(subject))
parent = NULL;
else
parent = subject->d_parent;
prim.type = UNLINK_DENTRY;
prim.link.subject = subject;
prim.link.parent = parent;
ret = record_update_primitive(j, prim);
if (ret)
return ret;
do_unlink(subject, parent, j->root_p);
list_add(&subject->tmp_list, &j->orphans);
subject->is_orphan = 1;
return 0;
}
/* Is @d1 a (possibly nonproper) ancestor of @d2? */
static bool
is_ancestor(const struct wim_dentry *d1, const struct wim_dentry *d2)
{
for (;;) {
if (d2 == d1)
return true;
if (dentry_is_root(d2))
return false;
d2 = d2->d_parent;
}
}
/* Returns the number of characters needed to represent the path to the
* specified @dentry when extracted, not including the null terminator or the
* path to the target directory itself. */
static size_t
unix_dentry_path_length(const struct wim_dentry *dentry)
{
size_t len = 0;
const struct wim_dentry *d;
d = dentry;
do {
len += d->d_extraction_name_nchars + 1;
d = d->d_parent;
} while (!dentry_is_root(d) && will_extract_dentry(d));
return len;
}
static int
init_wimlib_dentry(struct wimlib_dir_entry *wdentry, struct wim_dentry *dentry,
WIMStruct *wim, int flags)
{
int ret;
size_t dummy;
const struct wim_inode *inode = dentry->d_inode;
const struct wim_inode_stream *strm;
struct wimlib_unix_data unix_data;
const void *object_id;
u32 object_id_len;
ret = utf16le_get_tstr(dentry->d_name, dentry->d_name_nbytes,
&wdentry->filename, &dummy);
if (ret)
return ret;
ret = utf16le_get_tstr(dentry->d_short_name, dentry->d_short_name_nbytes,
&wdentry->dos_name, &dummy);
if (ret)
return ret;
ret = calculate_dentry_full_path(dentry);
if (ret)
return ret;
wdentry->full_path = dentry->d_full_path;
for (struct wim_dentry *d = dentry; !dentry_is_root(d); d = d->d_parent)
wdentry->depth++;
if (inode_has_security_descriptor(inode)) {
struct wim_security_data *sd;
sd = wim_get_current_security_data(wim);
wdentry->security_descriptor = sd->descriptors[inode->i_security_id];
wdentry->security_descriptor_size = sd->sizes[inode->i_security_id];
}
wdentry->reparse_tag = inode->i_reparse_tag;
wdentry->num_links = inode->i_nlink;
wdentry->attributes = inode->i_attributes;
wdentry->hard_link_group_id = inode->i_ino;
wdentry->creation_time = wim_timestamp_to_timespec(inode->i_creation_time);
wdentry->last_write_time = wim_timestamp_to_timespec(inode->i_last_write_time);
wdentry->last_access_time = wim_timestamp_to_timespec(inode->i_last_access_time);
if (inode_get_unix_data(inode, &unix_data)) {
wdentry->unix_uid = unix_data.uid;
wdentry->unix_gid = unix_data.gid;
wdentry->unix_mode = unix_data.mode;
wdentry->unix_rdev = unix_data.rdev;
}
object_id = inode_get_object_id(inode, &object_id_len);
if (unlikely(object_id != NULL)) {
memcpy(&wdentry->object_id, object_id,
min(object_id_len, sizeof(wdentry->object_id)));
}
strm = inode_get_unnamed_stream(inode, get_default_stream_type(inode));
if (strm) {
ret = stream_to_wimlib_stream_entry(inode, strm,
&wdentry->streams[0],
wim->blob_table, flags);
if (ret)
return ret;
}
for (unsigned i = 0; i < inode->i_num_streams; i++) {
strm = &inode->i_streams[i];
if (!stream_is_named_data_stream(strm))
continue;
wdentry->num_named_streams++;
ret = stream_to_wimlib_stream_entry(inode, strm,
&wdentry->streams[
wdentry->num_named_streams],
wim->blob_table, flags);
if (ret)
return ret;
}
return 0;
}
