mirror of
https://github.com/corda/corda.git
synced 2025-01-07 13:38:47 +00:00
62 lines
1.4 KiB
C++
62 lines
1.4 KiB
C++
/* Copyright (c) 2012, Avian Contributors
|
|
|
|
Permission to use, copy, modify, and/or distribute this software
|
|
for any purpose with or without fee is hereby granted, provided
|
|
that the above copyright notice and this permission notice appear
|
|
in all copies.
|
|
|
|
There is NO WARRANTY for this software. See license.txt for
|
|
details. */
|
|
|
|
#include "lzma-util.h"
|
|
#include "C/LzmaDec.h"
|
|
|
|
using namespace vm;
|
|
|
|
namespace {
|
|
|
|
int32_t
|
|
read4(const uint8_t* in)
|
|
{
|
|
return (static_cast<int32_t>(in[3]) << 24)
|
|
| (static_cast<int32_t>(in[2]) << 16)
|
|
| (static_cast<int32_t>(in[1]) << 8)
|
|
| (static_cast<int32_t>(in[0]) );
|
|
}
|
|
|
|
} // namespace
|
|
|
|
namespace vm {
|
|
|
|
uint8_t*
|
|
decodeLZMA(System* s, Allocator* a, uint8_t* in, unsigned inSize,
|
|
unsigned* outSize)
|
|
{
|
|
const unsigned PropHeaderSize = 5;
|
|
const unsigned HeaderSize = 13;
|
|
|
|
int32_t outSize32 = read4(in + PropHeaderSize);
|
|
expect(s, outSize32 >= 0);
|
|
SizeT outSizeT = outSize32;
|
|
|
|
uint8_t* out = static_cast<uint8_t*>(a->allocate(outSize32));
|
|
|
|
SizeT inSizeT = inSize;
|
|
LzmaAllocator allocator(a);
|
|
|
|
ELzmaStatus status;
|
|
int result = LzmaDecode
|
|
(out, &outSizeT, in + HeaderSize, &inSizeT, in, PropHeaderSize,
|
|
LZMA_FINISH_END, &status, &(allocator.allocator));
|
|
|
|
expect(s, result == SZ_OK);
|
|
expect(s, status == LZMA_STATUS_FINISHED_WITH_MARK);
|
|
|
|
*outSize = outSize32;
|
|
|
|
return out;
|
|
}
|
|
|
|
} // namespace vm
|
|
|