qemu/block/dmg-bz2.c
Markus Armbruster a8d2532645 Include qemu-common.h exactly where needed
No header includes qemu-common.h after this commit, as prescribed by
qemu-common.h's file comment.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190523143508.25387-5-armbru@redhat.com>
[Rebased with conflicts resolved automatically, except for
include/hw/arm/xlnx-zynqmp.h hw/arm/nrf51_soc.c hw/arm/msf2-soc.c
block/qcow2-refcount.c block/qcow2-cluster.c block/qcow2-cache.c
target/arm/cpu.h target/lm32/cpu.h target/m68k/cpu.h target/mips/cpu.h
target/moxie/cpu.h target/nios2/cpu.h target/openrisc/cpu.h
target/riscv/cpu.h target/tilegx/cpu.h target/tricore/cpu.h
target/unicore32/cpu.h target/xtensa/cpu.h; bsd-user/main.c and
net/tap-bsd.c fixed up]
2019-06-12 13:20:20 +02:00

61 lines
2.1 KiB
C

/*
* DMG bzip2 uncompression
*
* Copyright (c) 2004 Johannes E. Schindelin
* Copyright (c) 2016 Red Hat, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "dmg.h"
#include <bzlib.h>
static int dmg_uncompress_bz2_do(char *next_in, unsigned int avail_in,
char *next_out, unsigned int avail_out)
{
int ret;
uint64_t total_out;
bz_stream bzstream = {};
ret = BZ2_bzDecompressInit(&bzstream, 0, 0);
if (ret != BZ_OK) {
return -1;
}
bzstream.next_in = next_in;
bzstream.avail_in = avail_in;
bzstream.next_out = next_out;
bzstream.avail_out = avail_out;
ret = BZ2_bzDecompress(&bzstream);
total_out = ((uint64_t)bzstream.total_out_hi32 << 32) +
bzstream.total_out_lo32;
BZ2_bzDecompressEnd(&bzstream);
if (ret != BZ_STREAM_END ||
total_out != avail_out) {
return -1;
}
return 0;
}
__attribute__((constructor))
static void dmg_bz2_init(void)
{
assert(!dmg_uncompress_bz2);
dmg_uncompress_bz2 = dmg_uncompress_bz2_do;
}