62 lines
2.1 KiB
C
62 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 "qemu-common.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;
|
|
}
|