eaa8687be3
Do not use zmod.h in userspace. This has also been filed with the ZFS team. It makes the userspace libzpool code use the zlib API, instead of the Solaris-only and non-standard zmod.h. The zlib API is almost identical and is a de facto standard, so this is a no-brainer. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
83 lines
1.8 KiB
C
83 lines
1.8 KiB
C
/*
|
|
* CDDL HEADER START
|
|
*
|
|
* The contents of this file are subject to the terms of the
|
|
* Common Development and Distribution License (the "License").
|
|
* You may not use this file except in compliance with the License.
|
|
*
|
|
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
|
* or http://www.opensolaris.org/os/licensing.
|
|
* See the License for the specific language governing permissions
|
|
* and limitations under the License.
|
|
*
|
|
* When distributing Covered Code, include this CDDL HEADER in each
|
|
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
|
* If applicable, add the following below this CDDL HEADER, with the
|
|
* fields enclosed by brackets "[]" replaced with your own identifying
|
|
* information: Portions Copyright [yyyy] [name of copyright owner]
|
|
*
|
|
* CDDL HEADER END
|
|
*/
|
|
|
|
/*
|
|
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
|
|
* Use is subject to license terms.
|
|
*/
|
|
|
|
|
|
|
|
#include <sys/debug.h>
|
|
#include <sys/types.h>
|
|
|
|
#ifdef _KERNEL
|
|
|
|
#include <sys/systm.h>
|
|
#include <sys/zmod.h>
|
|
|
|
typedef size_t zlen_t;
|
|
#define compress_func z_compress_level
|
|
#define uncompress_func z_uncompress
|
|
|
|
#else /* _KERNEL */
|
|
|
|
#include <strings.h>
|
|
#include <zlib.h>
|
|
|
|
typedef uLongf zlen_t;
|
|
#define compress_func compress2
|
|
#define uncompress_func uncompress
|
|
|
|
#endif
|
|
|
|
size_t
|
|
gzip_compress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n)
|
|
{
|
|
zlen_t dstlen = d_len;
|
|
|
|
ASSERT(d_len <= s_len);
|
|
|
|
if (compress_func(d_start, &dstlen, s_start, s_len, n) != Z_OK) {
|
|
if (d_len != s_len)
|
|
return (s_len);
|
|
|
|
bcopy(s_start, d_start, s_len);
|
|
return (s_len);
|
|
}
|
|
|
|
return ((size_t) dstlen);
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
int
|
|
gzip_decompress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n)
|
|
{
|
|
zlen_t dstlen = d_len;
|
|
|
|
ASSERT(d_len >= s_len);
|
|
|
|
if (uncompress_func(d_start, &dstlen, s_start, s_len) != Z_OK)
|
|
return (-1);
|
|
|
|
return (0);
|
|
}
|