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/*
Coreboot interface to memory-saving variant of LZMA decoder
(C)opyright 2006 Carl-Daniel Hailfinger
Released under the GNU GPL v2 or later
Parts of this file are based on C/7zip/Compress/LZMA_C/LzmaTest.c from the LZMA
SDK 4.42, which is written and distributed to public domain by Igor Pavlov.
*/
#include "lzmadecode.c"
static unsigned long ulzma(unsigned char * src, unsigned char * dst)
{
unsigned char properties[LZMA_PROPERTIES_SIZE];
UInt32 outSize;
SizeT inProcessed;
SizeT outProcessed;
int res;
CLzmaDecoderState state;
SizeT mallocneeds;
unsigned char scratchpad[15980];
memcpy(properties, src, LZMA_PROPERTIES_SIZE);
outSize = *(UInt32 *)(src + LZMA_PROPERTIES_SIZE);
if (LzmaDecodeProperties(&state.Properties, properties, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK) {
printk_warning("Incorrect stream properties\n");
return 0;
}
mallocneeds = (LzmaGetNumProbs(&state.Properties) * sizeof(CProb));
if (mallocneeds > 15980) {
printk_warning("Decoder scratchpad too small!\n");
return 0;
}
state.Probs = (CProb *)scratchpad;
res = LzmaDecode(&state, src + LZMA_PROPERTIES_SIZE + 8, (SizeT)0xffffffff, &inProcessed,
dst, outSize, &outProcessed);
if (res != 0) {
printk_warning("Decoding error = %d\n", res);
return 0;
}
return outSize;
}
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