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Externals: Add libLZMA.

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degasus 2019-12-30 15:07:54 +01:00
parent 4385afdb0a
commit 9fd03cda9d
156 changed files with 35414 additions and 0 deletions
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47
Externals/liblzma/common/stream_flags_common.c vendored Normal file
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///////////////////////////////////////////////////////////////////////////////
//
/// \file stream_flags_common.c
/// \brief Common stuff for Stream flags coders
//
// Author: Lasse Collin
//
// This file has been put into the public domain.
// You can do whatever you want with this file.
//
///////////////////////////////////////////////////////////////////////////////
#include "stream_flags_common.h"
const uint8_t lzma_header_magic[6] = { 0xFD, 0x37, 0x7A, 0x58, 0x5A, 0x00 };
const uint8_t lzma_footer_magic[2] = { 0x59, 0x5A };
extern LZMA_API(lzma_ret)
lzma_stream_flags_compare(
const lzma_stream_flags *a, const lzma_stream_flags *b)
{
// We can compare only version 0 structures.
if (a->version != 0 || b->version != 0)
return LZMA_OPTIONS_ERROR;
// Check type
if ((unsigned int)(a->check) > LZMA_CHECK_ID_MAX
|| (unsigned int)(b->check) > LZMA_CHECK_ID_MAX)
return LZMA_PROG_ERROR;
if (a->check != b->check)
return LZMA_DATA_ERROR;
// Backward Sizes are compared only if they are known in both.
if (a->backward_size != LZMA_VLI_UNKNOWN
&& b->backward_size != LZMA_VLI_UNKNOWN) {
if (!is_backward_size_valid(a) || !is_backward_size_valid(b))
return LZMA_PROG_ERROR;
if (a->backward_size != b->backward_size)
return LZMA_DATA_ERROR;
}
return LZMA_OK;
}