gboolean
gs_dfd_and_name_set_all_xattrs (int dfd,
const char *name,
GVariant *xattrs,
GCancellable *cancellable,
GError **error)
{
return glnx_dfd_name_set_all_xattrs (dfd, name, xattrs, cancellable, error);
}
/**
* gs_file_set_all_xattrs:
* @file: File descriptor
* @xattrs: Extended attributes
* @cancellable: Cancellable
* @error: Error
*
* For each attribute in @xattrs, set its value on the file or
* directory referred to by @file. This function does not remove any
* attributes not in @xattrs.
*/
gboolean
gs_file_set_all_xattrs (GFile *file,
GVariant *xattrs,
GCancellable *cancellable,
GError **error)
{
return glnx_dfd_name_set_all_xattrs (AT_FDCWD,
gs_file_get_path_cached (file),
xattrs, cancellable, error);
}
/*
* This function creates a file under a temporary name, then rename()s
* it into place. This implements union-like behavior.
*/
static gboolean
checkout_file_unioning_from_input_at (OstreeRepo *repo,
OstreeRepoCheckoutOptions *options,
GFileInfo *file_info,
GVariant *xattrs,
GInputStream *input,
int destination_dfd,
const char *destination_name,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
g_autofree char *temp_filename = NULL;
if (g_file_info_get_file_type (file_info) == G_FILE_TYPE_SYMBOLIC_LINK)
{
if (!_ostree_make_temporary_symlink_at (destination_dfd,
g_file_info_get_symlink_target (file_info),
&temp_filename,
cancellable, error))
goto out;
if (xattrs)
{
if (!glnx_dfd_name_set_all_xattrs (destination_dfd, temp_filename,
xattrs, cancellable, error))
goto out;
}
}
else if (g_file_info_get_file_type (file_info) == G_FILE_TYPE_REGULAR)
{
g_autoptr(GOutputStream) temp_out = NULL;
guint32 file_mode;
file_mode = g_file_info_get_attribute_uint32 (file_info, "unix::mode");
/* Don't make setuid files on checkout when we're doing --user */
if (options->mode == OSTREE_REPO_CHECKOUT_MODE_USER)
file_mode &= ~(S_ISUID|S_ISGID);
if (!gs_file_open_in_tmpdir_at (destination_dfd, file_mode,
&temp_filename, &temp_out,
cancellable, error))
goto out;
if (!write_regular_file_content (repo, options, temp_out, file_info, xattrs, input,
cancellable, error))
goto out;
}
else
g_assert_not_reached ();
if (G_UNLIKELY (renameat (destination_dfd, temp_filename,
destination_dfd, destination_name) == -1))
{
glnx_set_error_from_errno (error);
goto out;
}
ret = TRUE;
out:
return ret;
}
static gboolean
checkout_file_from_input_at (OstreeRepo *self,
OstreeRepoCheckoutOptions *options,
GFileInfo *file_info,
GVariant *xattrs,
GInputStream *input,
int destination_dfd,
const char *destination_name,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
int res;
if (g_file_info_get_file_type (file_info) == G_FILE_TYPE_SYMBOLIC_LINK)
{
do
res = symlinkat (g_file_info_get_symlink_target (file_info),
destination_dfd, destination_name);
while (G_UNLIKELY (res == -1 && errno == EINTR));
if (res == -1)
{
glnx_set_error_from_errno (error);
goto out;
}
if (options->mode != OSTREE_REPO_CHECKOUT_MODE_USER)
{
if (G_UNLIKELY (fchownat (destination_dfd, destination_name,
g_file_info_get_attribute_uint32 (file_info, "unix::uid"),
g_file_info_get_attribute_uint32 (file_info, "unix::gid"),
AT_SYMLINK_NOFOLLOW) == -1))
{
glnx_set_error_from_errno (error);
goto out;
}
if (xattrs)
{
if (!glnx_dfd_name_set_all_xattrs (destination_dfd, destination_name,
xattrs, cancellable, error))
goto out;
}
}
}
else if (g_file_info_get_file_type (file_info) == G_FILE_TYPE_REGULAR)
{
g_autoptr(GOutputStream) temp_out = NULL;
int fd;
guint32 file_mode;
file_mode = g_file_info_get_attribute_uint32 (file_info, "unix::mode");
/* Don't make setuid files on checkout when we're doing --user */
if (options->mode == OSTREE_REPO_CHECKOUT_MODE_USER)
file_mode &= ~(S_ISUID|S_ISGID);
do
fd = openat (destination_dfd, destination_name, O_WRONLY | O_CREAT | O_EXCL, file_mode);
while (G_UNLIKELY (fd == -1 && errno == EINTR));
if (fd == -1)
{
glnx_set_error_from_errno (error);
goto out;
}
temp_out = g_unix_output_stream_new (fd, TRUE);
fd = -1; /* Transfer ownership */
if (!write_regular_file_content (self, options, temp_out, file_info, xattrs, input,
cancellable, error))
goto out;
}
else
g_assert_not_reached ();
ret = TRUE;
out:
return ret;
}
