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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
124 lines
3.5 KiB
C
124 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Usefuls routines based on the LzmaTest.c file from LZMA SDK 4.65
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*
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* Copyright (C) 2007-2009 Industrie Dial Face S.p.A.
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* Luigi 'Comio' Mantellini (luigi.mantellini@idf-hit.com)
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*
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* Copyright (C) 1999-2005 Igor Pavlov
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*/
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/*
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* LZMA_Alone stream format:
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*
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* uchar Properties[5]
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* uint64 Uncompressed size
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* uchar data[*]
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*
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*/
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#include <config.h>
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#include <common.h>
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#include <watchdog.h>
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#ifdef CONFIG_LZMA
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#define LZMA_PROPERTIES_OFFSET 0
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#define LZMA_SIZE_OFFSET LZMA_PROPS_SIZE
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#define LZMA_DATA_OFFSET LZMA_SIZE_OFFSET+sizeof(uint64_t)
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#include "LzmaTools.h"
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#include "LzmaDec.h"
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#include <linux/string.h>
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#include <malloc.h>
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static void *SzAlloc(void *p, size_t size) { return malloc(size); }
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static void SzFree(void *p, void *address) { free(address); }
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int lzmaBuffToBuffDecompress (unsigned char *outStream, SizeT *uncompressedSize,
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unsigned char *inStream, SizeT length)
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{
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int res = SZ_ERROR_DATA;
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int i;
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ISzAlloc g_Alloc;
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SizeT outSizeFull = 0xFFFFFFFF; /* 4GBytes limit */
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SizeT outProcessed;
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SizeT outSize;
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SizeT outSizeHigh;
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ELzmaStatus state;
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SizeT compressedSize = (SizeT)(length - LZMA_PROPS_SIZE);
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debug ("LZMA: Image address............... 0x%p\n", inStream);
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debug ("LZMA: Properties address.......... 0x%p\n", inStream + LZMA_PROPERTIES_OFFSET);
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debug ("LZMA: Uncompressed size address... 0x%p\n", inStream + LZMA_SIZE_OFFSET);
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debug ("LZMA: Compressed data address..... 0x%p\n", inStream + LZMA_DATA_OFFSET);
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debug ("LZMA: Destination address......... 0x%p\n", outStream);
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memset(&state, 0, sizeof(state));
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outSize = 0;
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outSizeHigh = 0;
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/* Read the uncompressed size */
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for (i = 0; i < 8; i++) {
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unsigned char b = inStream[LZMA_SIZE_OFFSET + i];
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if (i < 4) {
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outSize += (UInt32)(b) << (i * 8);
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} else {
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outSizeHigh += (UInt32)(b) << ((i - 4) * 8);
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}
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}
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outSizeFull = (SizeT)outSize;
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if (sizeof(SizeT) >= 8) {
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/*
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* SizeT is a 64 bit uint => We can manage files larger than 4GB!
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*
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*/
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outSizeFull |= (((SizeT)outSizeHigh << 16) << 16);
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} else if (outSizeHigh != 0 || (UInt32)(SizeT)outSize != outSize) {
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/*
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* SizeT is a 32 bit uint => We cannot manage files larger than
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* 4GB! Assume however that all 0xf values is "unknown size" and
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* not actually a file of 2^64 bits.
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*
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*/
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if (outSizeHigh != (SizeT)-1 || outSize != (SizeT)-1) {
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debug ("LZMA: 64bit support not enabled.\n");
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return SZ_ERROR_DATA;
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}
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}
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debug("LZMA: Uncompresed size............ 0x%zx\n", outSizeFull);
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debug("LZMA: Compresed size.............. 0x%zx\n", compressedSize);
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g_Alloc.Alloc = SzAlloc;
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g_Alloc.Free = SzFree;
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/* Short-circuit early if we know the buffer can't hold the results. */
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if (outSizeFull != (SizeT)-1 && *uncompressedSize < outSizeFull)
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return SZ_ERROR_OUTPUT_EOF;
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/* Decompress */
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outProcessed = min(outSizeFull, *uncompressedSize);
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WATCHDOG_RESET();
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res = LzmaDecode(
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outStream, &outProcessed,
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inStream + LZMA_DATA_OFFSET, &compressedSize,
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inStream, LZMA_PROPS_SIZE, LZMA_FINISH_END, &state, &g_Alloc);
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*uncompressedSize = outProcessed;
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debug("LZMA: Uncompressed ............... 0x%zx\n", outProcessed);
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if (res != SZ_OK) {
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return res;
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}
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return res;
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}
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#endif
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