1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or https://opensource.org/licenses/CDDL-1.0.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef	_ZMOD_H
28#define	_ZMOD_H
29
30#ifdef	__cplusplus
31extern "C" {
32#endif
33
34/*
35 * zmod - RFC-1950-compatible decompression routines
36 *
37 * This file provides the public interfaces to zmod, an in-kernel RFC 1950
38 * decompression library.  More information about the implementation of these
39 * interfaces can be found in the usr/src/uts/common/zmod/ directory.
40 */
41
42#define	Z_OK		0
43#define	Z_STREAM_END	1
44#define	Z_NEED_DICT	2
45#define	Z_ERRNO		(-1)
46#define	Z_STREAM_ERROR	(-2)
47#define	Z_DATA_ERROR	(-3)
48#define	Z_MEM_ERROR	(-4)
49#define	Z_BUF_ERROR	(-5)
50#define	Z_VERSION_ERROR	(-6)
51
52#define	Z_NO_COMPRESSION	0
53#define	Z_BEST_SPEED		1
54#define	Z_BEST_COMPRESSION	9
55#define	Z_DEFAULT_COMPRESSION	(-1)
56
57extern int z_uncompress(void *, size_t *, const void *, size_t);
58extern int z_compress(void *, size_t *, const void *, size_t);
59extern int z_compress_level(void *, size_t *, const void *, size_t, int);
60extern const char *z_strerror(int);
61
62#ifdef	__cplusplus
63}
64#endif
65
66#endif	/* _ZMOD_H */
67