Untested. Needs lzmadecode.c from coreboot v3.
Regards,
Carl-Daniel
/*
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"
#define LZMA_SCRATCHPAD_SIZE 15980
int lzma_check(u8 *src)
{
unsigned char properties[LZMA_PROPERTIES_SIZE];
UInt32 outSize;
SizeT inProcessed;
SizeT outProcessed;
int res;
CLzmaDecoderState state;
SizeT mallocneeds;
unsigned char scratchpad[LZMA_SCRATCHPAD_SIZE];
char *dst;
memcpy(properties, src, LZMA_PROPERTIES_SIZE);
outSize = *(UInt32 *)(src + LZMA_PROPERTIES_SIZE);
dst = malloc(outSize);
if (LzmaDecodeProperties(&state.Properties, properties,
LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK) {
printf("Incorrect stream properties\n");
return -1;
}
mallocneeds = (LzmaGetNumProbs(&state.Properties) * sizeof(CProb));
if (mallocneeds > LZMA_SCRATCHPAD_SIZE) {
printf("Decoder scratchpad too small, have %i, need %i!\n",
LZMA_SCRATCHPAD_SIZE, mallocneeds);
return -1;
}
state.Probs = (CProb *)scratchpad;
res = LzmaDecode(&state, src + LZMA_PROPERTIES_SIZE + 8,
(SizeT)0xffffffff, &inProcessed,
dst, outSize, &outProcessed);
if (res != 0) {
printf("Decoding error = %d\n", res);
return -1;
}
return 0;
}
--
http://www.hailfinger.org/
--
coreboot mailing list
[email protected]
http://www.coreboot.org/mailman/listinfo/coreboot
