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2b0cabbdae
- Use new zlib headers; - Removed z_alloc and z_free to use the common sys/dev/zlib version. - Replace z_compressBound with compressBound from zlib. While there, limit LZMA CFLAGS to apply only for g_uzip_lzma.c. PR: 229763 Submitted by: Yoshihiro Ota <ota j email ne jp> (with changes, bugs are mine) Differential Revision: https://reviews.freebsd.org/D20271
119 lines
3.2 KiB
C
119 lines
3.2 KiB
C
/*-
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* Copyright (c) 2004 Max Khon
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* Copyright (c) 2014 Juniper Networks, Inc.
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* Copyright (c) 2006-2016 Maxim Sobolev <sobomax@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <contrib/zlib/zlib.h>
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#include <dev/zlib/zcalloc.h>
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#include <geom/uzip/g_uzip.h>
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#include <geom/uzip/g_uzip_dapi.h>
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#include <geom/uzip/g_uzip_zlib.h>
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struct g_uzip_zlib {
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uint32_t blksz;
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struct g_uzip_dapi pub;
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/* Zlib decoder structs */
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z_stream zs;
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};
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static int g_uzip_zlib_rewind(struct g_uzip_dapi *, const char *);
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static void
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g_uzip_zlib_free(struct g_uzip_dapi *zpp)
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{
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struct g_uzip_zlib *zp;
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zp = (struct g_uzip_zlib *)zpp->pvt;
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inflateEnd(&zp->zs);
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free(zp, M_GEOM_UZIP);
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}
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static int
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g_uzip_zlib_decompress(struct g_uzip_dapi *zpp, const char *gp_name, void *ibp,
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size_t ilen, void *obp)
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{
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int err;
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struct g_uzip_zlib *zp;
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zp = (struct g_uzip_zlib *)zpp->pvt;
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zp->zs.next_in = ibp;
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zp->zs.avail_in = ilen;
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zp->zs.next_out = obp;
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zp->zs.avail_out = zp->blksz;
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err = (inflate(&zp->zs, Z_FINISH) != Z_STREAM_END) ? 1 : 0;
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if (err != 0) {
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printf("%s: UZIP(zlib) inflate() failed\n", gp_name);
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}
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return (err);
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}
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static int
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g_uzip_zlib_rewind(struct g_uzip_dapi *zpp, const char *gp_name)
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{
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int err;
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struct g_uzip_zlib *zp;
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zp = (struct g_uzip_zlib *)zpp->pvt;
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err = 0;
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if (inflateReset(&zp->zs) != Z_OK) {
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printf("%s: UZIP(zlib) decoder reset failed\n", gp_name);
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err = 1;
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}
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return (err);
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}
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struct g_uzip_dapi *
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g_uzip_zlib_ctor(uint32_t blksz)
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{
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struct g_uzip_zlib *zp;
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zp = malloc(sizeof(struct g_uzip_zlib), M_GEOM_UZIP, M_WAITOK | M_ZERO);
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if (inflateInit(&zp->zs) != Z_OK) {
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goto e1;
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}
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zp->blksz = blksz;
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zp->pub.max_blen = compressBound(blksz);
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zp->pub.decompress = &g_uzip_zlib_decompress;
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zp->pub.free = &g_uzip_zlib_free;
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zp->pub.rewind = &g_uzip_zlib_rewind;
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zp->pub.pvt = (void *)zp;
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return (&zp->pub);
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e1:
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free(zp, M_GEOM_UZIP);
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return (NULL);
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}
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