void
update_parent_directory (struct tar_stat_info *parent)
{
struct directory *directory = find_directory (parent->orig_file_name);
if (directory)
{
struct stat st;
if (fstat (parent->fd, &st) != 0)
stat_diag (directory->name);
else
directory->mtime = get_stat_mtime (&st);
}
}
void
update_parent_directory (const char *name)
{
struct directory *directory;
char *p;
p = dir_name (name);
directory = find_directory (p);
if (directory)
{
struct stat st;
if (deref_stat (dereference_option, p, &st) != 0)
stat_diag (name);
else
directory->mtime = get_stat_mtime (&st);
}
free (p);
}
void
update_parent_directory (const char *name)
{
struct directory *directory;
char *p;
p = dir_name (name);
directory = find_directory (p);
if (directory)
{
struct stat st;
if (deref_stat (dereference_option, p, &st) != 0)
{
if (errno != ENOENT)
stat_diag (directory->name);
/* else: should have been already reported */
}
else
directory->mtime = get_stat_mtime (&st);
}
free (p);
}
/* Examine the directories under directory_name and delete any
files that were not there at the time of the back-up. */
static bool
try_purge_directory (char const *directory_name)
{
char *current_dir;
char *cur, *arc, *p;
char *temp_stub = NULL;
struct dumpdir *dump;
if (!is_dumpdir (¤t_stat_info))
return false;
current_dir = savedir (directory_name);
if (!current_dir)
/* The directory doesn't exist now. It'll be created. In any
case, we don't have to delete any files out of it. */
return false;
/* Verify if dump directory is sane */
if (!dumpdir_ok (current_stat_info.dumpdir))
return false;
/* Process renames */
for (arc = current_stat_info.dumpdir; *arc; arc += strlen (arc) + 1)
{
if (*arc == 'X')
{
#define TEMP_DIR_TEMPLATE "tar.XXXXXX"
size_t len = strlen (arc + 1);
temp_stub = xrealloc (temp_stub, len + 1 + sizeof TEMP_DIR_TEMPLATE);
memcpy (temp_stub, arc + 1, len);
temp_stub[len] = '/';
memcpy (temp_stub + len + 1, TEMP_DIR_TEMPLATE,
sizeof TEMP_DIR_TEMPLATE);
if (!mkdtemp (temp_stub))
{
ERROR ((0, errno,
_("Cannot create temporary directory using template %s"),
quote (temp_stub)));
free (temp_stub);
free (current_dir);
return false;
}
}
else if (*arc == 'R')
{
char *src, *dst;
src = arc + 1;
arc += strlen (arc) + 1;
dst = arc + 1;
/* Ensure that neither source nor destination are absolute file
names (unless permitted by -P option), and that they do not
contain dubious parts (e.g. ../).
This is an extra safety precaution. Besides, it might be
necessary to extract from archives created with tar versions
prior to 1.19. */
if (*src)
src = safer_name_suffix (src, false, absolute_names_option);
if (*dst)
dst = safer_name_suffix (dst, false, absolute_names_option);
if (*src == 0)
src = temp_stub;
else if (*dst == 0)
dst = temp_stub;
if (!rename_directory (src, dst))
{
free (temp_stub);
free (current_dir);
/* FIXME: Make sure purge_directory(dst) will return
immediately */
return false;
}
}
}
free (temp_stub);
/* Process deletes */
dump = dumpdir_create (current_stat_info.dumpdir);
p = NULL;
for (cur = current_dir; *cur; cur += strlen (cur) + 1)
{
const char *entry;
struct stat st;
if (p)
free (p);
p = new_name (directory_name, cur);
if (deref_stat (false, p, &st))
{
if (errno != ENOENT) /* FIXME: Maybe keep a list of renamed
dirs and check it here? */
{
stat_diag (p);
WARN ((0, 0, _("%s: Not purging directory: unable to stat"),
quotearg_colon (p)));
}
continue;
}
if (!(entry = dumpdir_locate (dump, cur))
|| (*entry == 'D' && !S_ISDIR (st.st_mode))
|| (*entry == 'Y' && S_ISDIR (st.st_mode)))
{
if (one_file_system_option && st.st_dev != root_device)
{
WARN ((0, 0,
_("%s: directory is on a different device: not purging"),
quotearg_colon (p)));
continue;
}
if (! interactive_option || confirm ("delete", p))
{
if (verbose_option)
fprintf (stdlis, _("%s: Deleting %s\n"),
program_name, quote (p));
if (! remove_any_file (p, RECURSIVE_REMOVE_OPTION))
{
int e = errno;
ERROR ((0, e, _("%s: Cannot remove"), quotearg_colon (p)));
}
}
}
}
free (p);
dumpdir_free (dump);
free (current_dir);
return true;
}
void
collect_and_sort_names (void)
{
struct name *name;
struct name *next_name, *prev_name;
int num_names;
struct stat statbuf;
Hash_table *nametab;
name_gather ();
if (!namelist)
addname (".", 0, false, NULL);
if (listed_incremental_option)
{
switch (chdir_count ())
{
case 0:
break;
case 1:
if (namelist->change_dir == 0)
USAGE_ERROR ((0, 0,
_("Using -C option inside file list is not "
"allowed with --listed-incremental")));
break;
default:
USAGE_ERROR ((0, 0,
_("Only one -C option is allowed with "
"--listed-incremental")));
}
read_directory_file ();
}
num_names = 0;
for (name = namelist; name; name = name->next, num_names++)
{
if (name->found_count || name->directory)
continue;
if (name->matching_flags & EXCLUDE_WILDCARDS)
/* NOTE: EXCLUDE_ANCHORED is not relevant here */
/* FIXME: just skip regexps for now */
continue;
chdir_do (name->change_dir);
if (name->name[0] == 0)
continue;
if (deref_stat (dereference_option, name->name, &statbuf) != 0)
{
stat_diag (name->name);
continue;
}
if (S_ISDIR (statbuf.st_mode))
{
name->found_count++;
add_hierarchy_to_namelist (name, statbuf.st_dev, true);
}
}
namelist = merge_sort (namelist, num_names, compare_names);
num_names = 0;
nametab = hash_initialize (0, 0,
name_hash,
name_compare, NULL);
for (name = namelist; name; name = next_name)
{
next_name = name->next;
name->caname = normalize_filename (name->name);
if (prev_name)
{
struct name *p = hash_lookup (nametab, name);
if (p)
{
/* Keep the one listed in the command line */
if (!name->parent)
{
if (p->child)
rebase_child_list (p->child, name);
/* FIXME: remove_directory (p->caname); ? */
remname (p);
free_name (p);
num_names--;
}
else
{
if (name->child)
rebase_child_list (name->child, p);
/* FIXME: remove_directory (name->caname); ? */
remname (name);
free_name (name);
continue;
}
}
}
name->found_count = 0;
if (!hash_insert (nametab, name))
xalloc_die ();
prev_name = name;
num_names++;
}
nametail = prev_name;
hash_free (nametab);
namelist = merge_sort (namelist, num_names, compare_names_found);
if (listed_incremental_option)
{
for (name = namelist; name && name->name[0] == 0; name++)
;
if (name)
append_incremental_renames (name->directory);
}
}
/* Recursively scan the given directory. */
static const char *
scan_directory (char *dir, dev_t device)
{
char *dirp = savedir (dir); /* for scanning directory */
char *name_buffer; /* directory, `/', and directory member */
size_t name_buffer_size; /* allocated size of name_buffer, minus 2 */
size_t name_length; /* used length in name_buffer */
struct stat stat_data;
struct directory *directory;
if (! dirp)
savedir_error (dir);
name_buffer_size = strlen (dir) + NAME_FIELD_SIZE;
name_buffer = xmalloc (name_buffer_size + 2);
strcpy (name_buffer, dir);
if (! ISSLASH (dir[strlen (dir) - 1]))
strcat (name_buffer, "/");
name_length = strlen (name_buffer);
if (deref_stat (dereference_option, name_buffer, &stat_data))
{
stat_diag (name_buffer);
/* FIXME: used to be
children = CHANGED_CHILDREN;
but changed to: */
free (name_buffer);
free (dirp);
return NULL;
}
directory = procdir (name_buffer, &stat_data, device, 0, NULL);
if (dirp && directory->children != NO_CHILDREN)
{
char *entry; /* directory entry being scanned */
size_t entrylen; /* length of directory entry */
dumpdir_iter_t itr;
makedumpdir (directory, dirp);
for (entry = dumpdir_first (directory->dump, 1, &itr);
entry;
entry = dumpdir_next (itr))
{
entrylen = strlen (entry);
if (name_buffer_size <= entrylen - 1 + name_length)
{
do
name_buffer_size += NAME_FIELD_SIZE;
while (name_buffer_size <= entrylen - 1 + name_length);
name_buffer = xrealloc (name_buffer, name_buffer_size + 2);
}
strcpy (name_buffer + name_length, entry + 1);
if (*entry == 'I') /* Ignored entry */
*entry = 'N';
else if (excluded_name (name_buffer))
*entry = 'N';
else
{
if (deref_stat (dereference_option, name_buffer, &stat_data))
{
stat_diag (name_buffer);
*entry = 'N';
continue;
}
if (S_ISDIR (stat_data.st_mode))
{
int pd_flag = (verbose_option ? PD_VERBOSE : 0);
if (!recursion_option)
pd_flag |= PD_FORCE_CHILDREN | NO_CHILDREN;
else if (directory->children == ALL_CHILDREN)
pd_flag |= PD_FORCE_CHILDREN | ALL_CHILDREN;
*entry = 'D';
procdir (name_buffer, &stat_data, device, pd_flag, entry);
}
else if (one_file_system_option && device != stat_data.st_dev)
*entry = 'N';
else if (*entry == 'Y')
/* New entry, skip further checks */;
/* FIXME: if (S_ISHIDDEN (stat_data.st_mode))?? */
else if (OLDER_STAT_TIME (stat_data, m)
&& (!after_date_option
|| OLDER_STAT_TIME (stat_data, c)))
*entry = 'N';
else
*entry = 'Y';
}
}
free (itr);
}
free (name_buffer);
if (dirp)
free (dirp);
return directory->dump ? directory->dump->contents : NULL;
}
