author | ck153898 |
Mon, 29 Oct 2007 22:45:33 -0700 | |
changeset 5378 | 111aa1baa84a |
parent 3886 | 3291401d66a6 |
permissions | -rw-r--r-- |
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/* |
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* CDDL HEADER START |
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* |
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* The contents of this file are subject to the terms of the |
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* Common Development and Distribution License (the "License"). |
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* You may not use this file except in compliance with the License. |
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* |
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
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* or http://www.opensolaris.org/os/licensing. |
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* See the License for the specific language governing permissions |
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* and limitations under the License. |
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* |
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* When distributing Covered Code, include this CDDL HEADER in each |
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
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* If applicable, add the following below this CDDL HEADER, with the |
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* fields enclosed by brackets "[]" replaced with your own identifying |
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* information: Portions Copyright [yyyy] [name of copyright owner] |
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* |
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* CDDL HEADER END |
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*/ |
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/* |
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* Copyright 2007 Sun Microsystems, Inc. All rights reserved. |
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* Use is subject to license terms. |
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*/ |
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#pragma ident "%Z%%M% %I% %E% SMI" |
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#include <sys/debug.h> |
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#include <sys/types.h> |
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#include <sys/zmod.h> |
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#ifdef _KERNEL |
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#include <sys/systm.h> |
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#else |
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#include <strings.h> |
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#endif |
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size_t |
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gzip_compress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n) |
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{ |
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size_t dstlen = d_len; |
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ASSERT(d_len <= s_len); |
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if (z_compress_level(d_start, &dstlen, s_start, s_len, n) != Z_OK) { |
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if (d_len != s_len) |
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return (s_len); |
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bcopy(s_start, d_start, s_len); |
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return (s_len); |
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} |
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return (dstlen); |
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} |
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/*ARGSUSED*/ |
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int |
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gzip_decompress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n) |
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{ |
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size_t dstlen = d_len; |
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ASSERT(d_len >= s_len); |
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if (z_uncompress(d_start, &dstlen, s_start, s_len) != Z_OK) |
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return (-1); |
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return (0); |
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} |