]>
Commit | Line | Data |
---|---|---|
34dc7c2f BB |
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 http://www.opensolaris.org/os/licensing. | |
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 | ||
e5dc681a | 27 | |
34dc7c2f BB |
28 | |
29 | #include <sys/debug.h> | |
30 | #include <sys/types.h> | |
34dc7c2f BB |
31 | |
32 | #ifdef _KERNEL | |
eaa8687b | 33 | |
34dc7c2f | 34 | #include <sys/systm.h> |
eaa8687b BB |
35 | #include <sys/zmod.h> |
36 | ||
37 | typedef size_t zlen_t; | |
38 | #define compress_func z_compress_level | |
39 | #define uncompress_func z_uncompress | |
40 | ||
41 | #else /* _KERNEL */ | |
42 | ||
34dc7c2f | 43 | #include <strings.h> |
eaa8687b BB |
44 | #include <zlib.h> |
45 | ||
46 | typedef uLongf zlen_t; | |
47 | #define compress_func compress2 | |
48 | #define uncompress_func uncompress | |
49 | ||
34dc7c2f BB |
50 | #endif |
51 | ||
52 | size_t | |
53 | gzip_compress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n) | |
54 | { | |
eaa8687b | 55 | zlen_t dstlen = d_len; |
34dc7c2f BB |
56 | |
57 | ASSERT(d_len <= s_len); | |
58 | ||
eaa8687b | 59 | if (compress_func(d_start, &dstlen, s_start, s_len, n) != Z_OK) { |
34dc7c2f BB |
60 | if (d_len != s_len) |
61 | return (s_len); | |
62 | ||
63 | bcopy(s_start, d_start, s_len); | |
64 | return (s_len); | |
65 | } | |
66 | ||
eaa8687b | 67 | return ((size_t) dstlen); |
34dc7c2f BB |
68 | } |
69 | ||
70 | /*ARGSUSED*/ | |
71 | int | |
72 | gzip_decompress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n) | |
73 | { | |
eaa8687b | 74 | zlen_t dstlen = d_len; |
34dc7c2f BB |
75 | |
76 | ASSERT(d_len >= s_len); | |
77 | ||
eaa8687b | 78 | if (uncompress_func(d_start, &dstlen, s_start, s_len) != Z_OK) |
34dc7c2f BB |
79 | return (-1); |
80 | ||
81 | return (0); | |
82 | } |