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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
*
* Copyright (C) 2013 Colin Walters <walters@verbum.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#pragma once
#include "ostree-core.h"
G_BEGIN_DECLS
/* This file contains private implementation data format definitions
* read by multiple implementation .c files.
*/
/*
* File objects are stored as a stream, with one #GVariant header,
* followed by content.
*
* The file header is of the following form:
*
* <BE guint32 containing variant length>
* u - uid
* u - gid
* u - mode
* u - rdev (must be 0)
* s - symlink target
* a(ayay) - xattrs
*
* Then the rest of the stream is data.
*/
#define _OSTREE_FILE_HEADER_GVARIANT_FORMAT G_VARIANT_TYPE ("(uuuusa(ayay))")
/*
* A variation on %OSTREE_FILE_HEADER_GVARIANT_FORMAT, used for
* storing zlib-compressed content objects.
*
* <BE guint32 containing variant length>
* t - size
* u - uid
* u - gid
* u - mode
* u - rdev (must be 0)
* s - symlink target
* a(ayay) - xattrs
* ---
* zlib-compressed data
*/
#define _OSTREE_ZLIB_FILE_HEADER_GVARIANT_FORMAT G_VARIANT_TYPE ("(tuuuusa(ayay))")
GVariant *_ostree_zlib_file_header_new (GFileInfo *file_info,
GVariant *xattrs);
gboolean _ostree_write_variant_with_size (GOutputStream *output,
GVariant *variant,
guint64 alignment_offset,
gsize *out_bytes_written,
GChecksum *checksum,
GCancellable *cancellable,
GError **error);
gboolean
_ostree_make_temporary_symlink_at (int tmp_dirfd,
const char *target,
char **out_name,
GCancellable *cancellable,
GError **error);
GFileInfo * _ostree_header_gfile_info_new (mode_t mode, uid_t uid, gid_t gid);
/* XX + / + checksum-2 + . + extension, but let's just use 256 for a
* bit of overkill.
*/
#define _OSTREE_LOOSE_PATH_MAX (256)
char *
_ostree_get_relative_object_path (const char *checksum,
OstreeObjectType type,
gboolean compressed);
char *
_ostree_get_relative_static_delta_path (const char *from,
const char *to);
char *
_ostree_get_relative_static_delta_detachedmeta_path (const char *from,
const char *to);
char *
_ostree_get_relative_static_delta_part_path (const char *from,
const char *to,
guint i);
void
_ostree_loose_path (char *buf,
const char *checksum,
OstreeObjectType objtype,
OstreeRepoMode repo_mode);
void
_ostree_loose_path_with_suffix (char *buf,
const char *checksum,
OstreeObjectType objtype,
OstreeRepoMode repo_mode,
const char *suffix);
GVariant *
_ostree_detached_metadata_append_gpg_sig (GVariant *existing_metadata,
GBytes *signature_bytes);
G_END_DECLS
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