mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2024-12-27 12:35:54 +00:00
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
///////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
/// \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;
|
|
}
|