+++ /dev/null
-/******************************************************************************
-**
-** FILE NAME : LzmaWrapper.c
-** PROJECT : bootloader
-** MODULES : U-boot
-**
-** DATE : 2 Nov 2006
-** AUTHOR : Lin Mars
-** DESCRIPTION : LZMA decoder support for U-boot 1.1.5
-** COPYRIGHT : Copyright (c) 2006
-** Infineon Technologies AG
-** Am Campeon 1-12, 85579 Neubiberg, Germany
-**
-** This program is free software; you can redistribute it and/or modify
-** it under the terms of the GNU General Public License as published by
-** the Free Software Foundation; either version 2 of the License, or
-** (at your option) any later version.
-**
-** HISTORY
-** $Date $Author $Comment
-** 2 Nov 2006 Lin Mars init version which derived from LzmaTest.c from
-** LZMA v4.43 SDK
-** 24 May 2007 Lin Mars Fix issue for multiple lzma_inflate involved
-*******************************************************************************/
-#define LZMA_NO_STDIO
-#ifndef LZMA_NO_STDIO
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#endif
-
-#include <config.h>
-#include <common.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/ctype.h>
-#include <malloc.h>
-
-#ifdef CONFIG_LZMA
-
-#include "LzmaDecode.h"
-#include "LzmaWrapper.h"
-
-#if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
-static const char *kCantReadMessage = "Can not read from source buffer";
-static const char *kCantAllocateMessage = "Not enough buffer for decompression";
-#endif
-
-static size_t rpos=0, dpos=0;
-
-static int MyReadFileAndCheck(unsigned char *src, void *dest, size_t size)
-{
- if (size == 0)
- return 0;
- memcpy(dest, src + rpos, size);
- rpos += size;
- return 1;
-}
-
-int lzma_inflate(unsigned char *source, int s_len, unsigned char *dest, int *d_len)
-{
- /* We use two 32-bit integers to construct 64-bit integer for file size.
- You can remove outSizeHigh, if you don't need >= 4GB supporting,
- or you can use UInt64 outSize, if your compiler supports 64-bit integers*/
- UInt32 outSize = 0;
- UInt32 outSizeHigh = 0;
- SizeT outSizeFull;
- unsigned char *outStream;
-
- int waitEOS = 1;
- /* waitEOS = 1, if there is no uncompressed size in headers,
- so decoder will wait EOS (End of Stream Marker) in compressed stream */
-
- SizeT compressedSize;
- unsigned char *inStream;
-
- CLzmaDecoderState state; /* it's about 24-80 bytes structure, if int is 32-bit */
- unsigned char properties[LZMA_PROPERTIES_SIZE];
-
- int res;
-
- rpos=0; dpos=0;
-
- if (sizeof(UInt32) < 4)
- {
-#if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
- printf("LZMA decoder needs correct UInt32\n");
-#endif
- return LZMA_RESULT_DATA_ERROR;
- }
-
- {
- long length=s_len;
- if ((long)(SizeT)length != length)
- {
-#if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
- printf("Too big compressed stream\n");
-#endif
- return LZMA_RESULT_DATA_ERROR;
- }
- compressedSize = (SizeT)(length - (LZMA_PROPERTIES_SIZE + 8));
- }
-
- /* Read LZMA properties for compressed stream */
-
- if (!MyReadFileAndCheck(source, properties, sizeof(properties)))
- {
-#if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
- printf("%s\n", kCantReadMessage);
-#endif
- return LZMA_RESULT_DATA_ERROR;
- }
-
- /* Read uncompressed size */
- {
- int i;
- for (i = 0; i < 8; i++)
- {
- unsigned char b;
- if (!MyReadFileAndCheck(source, &b, 1))
- {
-#if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
- printf("%s\n", kCantReadMessage);
-#endif
- return LZMA_RESULT_DATA_ERROR;
- }
- if (b != 0xFF)
- waitEOS = 0;
- if (i < 4)
- outSize += (UInt32)(b) << (i * 8);
- else
- outSizeHigh += (UInt32)(b) << ((i - 4) * 8);
- }
-
- if (waitEOS)
- {
-#if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
- printf("Stream with EOS marker is not supported");
-#endif
- return LZMA_RESULT_DATA_ERROR;
- }
- outSizeFull = (SizeT)outSize;
- if (sizeof(SizeT) >= 8)
- outSizeFull |= (((SizeT)outSizeHigh << 16) << 16);
- else if (outSizeHigh != 0 || (UInt32)(SizeT)outSize != outSize)
- {
-#if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
- printf("Too big uncompressed stream");
-#endif
- return LZMA_RESULT_DATA_ERROR;
- }
- }
-
- /* Decode LZMA properties and allocate memory */
- if (LzmaDecodeProperties(&state.Properties, properties, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK)
- {
-#if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
- printf("Incorrect stream properties");
-#endif
- return LZMA_RESULT_DATA_ERROR;
- }
- state.Probs = (CProb *)malloc(LzmaGetNumProbs(&state.Properties) * sizeof(CProb));
-
- if (outSizeFull == 0)
- outStream = 0;
- else
- {
- if (outSizeFull > d_len)
- outStream = 0;
- else
- outStream = dest;
- }
-
- if (compressedSize == 0)
- inStream = 0;
- else
- {
- if ((compressedSize+rpos) > s_len )
- inStream = 0;
- else
- inStream = source + rpos;
- }
-
- if (state.Probs == 0
- || (outStream == 0 && outSizeFull != 0)
- || (inStream == 0 && compressedSize != 0)
- )
- {
- free(state.Probs);
-#if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
- printf("%s\n", kCantAllocateMessage);
-#endif
- return LZMA_RESULT_DATA_ERROR;
- }
-
- /* Decompress */
- {
- SizeT inProcessed;
- SizeT outProcessed;
- res = LzmaDecode(&state,
- inStream, compressedSize, &inProcessed,
- outStream, outSizeFull, &outProcessed);
- if (res != 0)
- {
-#if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
- printf("\nDecoding error = %d\n", res);
-#endif
- res = 1;
- }
- else
- {
- *d_len = outProcessed;
- }
- }
-
- free(state.Probs);
- return res;
-}
-
-#endif /* CONFIG_LZMA */
projects / openwrt / svn-archive / archive.git / blobdiff