static grub_err_t
grub_cpio_dir (grub_device_t device, const char *path_in,
grub_fs_dir_hook_t hook, void *hook_data)
{
struct grub_archelp_data *data;
grub_err_t err;
data = grub_cpio_mount (device->disk);
if (!data)
return grub_errno;
err = grub_archelp_dir (data, &arcops,
path_in, hook, hook_data);
grub_free (data);
return err;
}
static grub_err_t
grub_cpio_open (grub_file_t file, const char *name_in)
{
struct grub_archelp_data *data;
grub_err_t err;
data = grub_cpio_mount (file->device->disk);
if (!data)
return grub_errno;
err = grub_archelp_open (data, &arcops, name_in);
if (err)
{
grub_free (data);
}
else
{
file->data = data;
file->size = data->size;
}
return err;
}
static grub_err_t
grub_cpio_open (grub_file_t file, const char *name)
{
struct grub_cpio_data *data;
grub_uint32_t ofs;
char *fn;
int i, j;
grub_dl_ref (my_mod);
data = grub_cpio_mount (file->device->disk);
if (!data)
goto fail;
data->hofs = 0;
while (1)
{
if (grub_cpio_find_file (data, &fn, &ofs))
goto fail;
if (!ofs)
{
grub_error (GRUB_ERR_FILE_NOT_FOUND, "file not found");
break;
}
/* Compare NAME and FN by hand in order to cope with duplicate
slashes. */
i = 0;
j = 0;
while (name[i] == '/')
i++;
while (1)
{
if (name[i] != fn[j])
goto no_match;
if (name[i] == '\0')
break;
while (name[i] == '/' && name[i+1] == '/')
i++;
i++;
j++;
}
if (name[i] != fn[j])
goto no_match;
file->data = data;
file->size = data->size;
grub_free (fn);
return GRUB_ERR_NONE;
no_match:
grub_free (fn);
data->hofs = ofs;
}
fail:
if (data)
grub_free (data);
grub_dl_unref (my_mod);
return grub_errno;
}
static grub_err_t
grub_cpio_dir (grub_device_t device, const char *path,
int (*hook) (const char *filename,
const struct grub_dirhook_info *info))
{
struct grub_cpio_data *data;
grub_uint32_t ofs;
char *prev, *name;
const char *np;
int len;
grub_dl_ref (my_mod);
prev = 0;
data = grub_cpio_mount (device->disk);
if (!data)
goto fail;
np = path + 1;
len = grub_strlen (path) - 1;
data->hofs = 0;
while (1)
{
if (grub_cpio_find_file (data, &name, &ofs))
goto fail;
if (!ofs)
break;
if (grub_memcmp (np, name, len) == 0)
{
char *p, *n;
n = name + len;
if (*n == '/')
n++;
p = grub_strchr (name + len, '/');
if (p)
*p = 0;
if ((!prev) || (grub_strcmp (prev, name) != 0))
{
struct grub_dirhook_info info;
grub_memset (&info, 0, sizeof (info));
info.dir = (p != NULL);
hook (name + len, &info);
if (prev)
grub_free (prev);
prev = name;
}
else
grub_free (name);
}
data->hofs = ofs;
}
fail:
if (prev)
grub_free (prev);
if (data)
grub_free (data);
grub_dl_unref (my_mod);
return grub_errno;
}
static grub_err_t
grub_cpio_open (grub_file_t file, const char *name_in)
{
struct grub_cpio_data *data;
grub_disk_addr_t ofs;
char *fn;
char *name = grub_strdup (name_in + 1);
int symlinknest = 0;
if (!name)
return grub_errno;
canonicalize (name);
grub_dl_ref (my_mod);
data = grub_cpio_mount (file->device->disk);
if (!data)
{
grub_free (name);
return grub_errno;
}
data->hofs = 0;
while (1)
{
grub_uint32_t mode;
int restart;
if (grub_cpio_find_file (data, &fn, NULL, &ofs, &mode))
goto fail;
if (!ofs)
{
grub_error (GRUB_ERR_FILE_NOT_FOUND, N_("file `%s' not found"), name_in);
break;
}
if (handle_symlink (data, fn, &name, mode, &restart))
{
grub_free (fn);
goto fail;
}
if (restart)
{
ofs = 0;
if (++symlinknest == 8)
{
grub_error (GRUB_ERR_SYMLINK_LOOP,
N_("too deep nesting of symlinks"));
goto fail;
}
goto no_match;
}
if (grub_strcmp (name, fn) != 0)
goto no_match;
file->data = data;
file->size = data->size;
grub_free (fn);
grub_free (name);
return GRUB_ERR_NONE;
no_match:
grub_free (fn);
data->hofs = ofs;
}
fail:
#ifdef MODE_USTAR
grub_free (data->linkname);
#endif
grub_free (data);
grub_free (name);
grub_dl_unref (my_mod);
return grub_errno;
}
static grub_err_t
grub_cpio_dir (grub_device_t device, const char *path_in,
int (*hook) (const char *filename,
const struct grub_dirhook_info *info))
{
struct grub_cpio_data *data;
grub_disk_addr_t ofs;
char *prev, *name, *path, *ptr;
grub_size_t len;
int symlinknest = 0;
path = grub_strdup (path_in + 1);
if (!path)
return grub_errno;
canonicalize (path);
for (ptr = path + grub_strlen (path) - 1; ptr >= path && *ptr == '/'; ptr--)
*ptr = 0;
grub_dl_ref (my_mod);
prev = 0;
data = grub_cpio_mount (device->disk);
if (!data)
{
grub_free (path);
return grub_errno;
}
len = grub_strlen (path);
data->hofs = 0;
while (1)
{
grub_int32_t mtime;
grub_uint32_t mode;
grub_err_t err;
if (grub_cpio_find_file (data, &name, &mtime, &ofs, &mode))
goto fail;
if (!ofs)
break;
if (grub_memcmp (path, name, len) == 0
&& (name[len] == 0 || name[len] == '/' || len == 0))
{
char *p, *n;
n = name + len;
while (*n == '/')
n++;
p = grub_strchr (n, '/');
if (p)
*p = 0;
if (((!prev) || (grub_strcmp (prev, name) != 0)) && *n != 0)
{
struct grub_dirhook_info info;
grub_memset (&info, 0, sizeof (info));
info.dir = (p != NULL) || ((mode & ATTR_TYPE) == ATTR_DIR);
info.mtime = mtime;
info.mtimeset = 1;
if (hook (n, &info))
{
grub_free (name);
goto fail;
}
grub_free (prev);
prev = name;
}
else
{
int restart = 0;
err = handle_symlink (data, name, &path, mode, &restart);
grub_free (name);
if (err)
goto fail;
if (restart)
{
len = grub_strlen (path);
if (++symlinknest == 8)
{
grub_error (GRUB_ERR_SYMLINK_LOOP,
N_("too deep nesting of symlinks"));
goto fail;
}
ofs = 0;
}
}
}
else
grub_free (name);
data->hofs = ofs;
}
fail:
grub_free (path);
grub_free (prev);
#ifdef MODE_USTAR
grub_free (data->linkname);
#endif
grub_free (data);
grub_dl_unref (my_mod);
return grub_errno;
}
