mirror_zfs/module/zfs/gzip.c
Brian Behlendorf 02730c333c Use cstyle -cpP in make cstyle check
Enable picky cstyle checks and resolve the new warnings.  The vast
majority of the changes needed were to handle minor issues with
whitespace formatting.  This patch contains no functional changes.

Non-whitespace changes are as follows:

* 8 times ; to { } in for/while loop
* fix missing ; in cmd/zed/agents/zfs_diagnosis.c
* comment (confim -> confirm)
* change endline , to ; in cmd/zpool/zpool_main.c
* a number of /* BEGIN CSTYLED */ /* END CSTYLED */ blocks
* /* CSTYLED */ markers
* change == 0 to !
* ulong to unsigned long in module/zfs/dsl_scan.c
* rearrangement of module_param lines in module/zfs/metaslab.c
* add { } block around statement after for_each_online_node

Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: Håkan Johansson <f96hajo@chalmers.se>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #5465
2016-12-12 10:46:26 -08:00

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);
}