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lzma: ignore unset filesizes

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The Linux kernel build system changed how it compresses things with LZMA
such that the header no longer contains the filesize (it is instead set to
all F's).  So if we get a LZMA image that has -1 for the 64bit field,
let's just assume that the decompressed size is unknown and continue on.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2009-12-04 05:35:15 -05:00 • committed by Wolfgang Denk
parent cccfc2ab77
commit f68ab43de6
1 changed files with 6 additions and 3 deletions
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9
lib_generic/lzma/LzmaTools.c
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@ -97,11 +97,14 @@ int lzmaBuffToBuffDecompress (unsigned char *outStream, SizeT *uncompressedSize,
} else if (outSizeHigh != 0 || (UInt32)(SizeT)outSize != outSize) {
/*
* SizeT is a 32 bit uint => We cannot manage files larger than
* 4GB!
* 4GB! Assume however that all 0xf values is "unknown size" and
* not actually a file of 2^64 bits.
*
*/
debug ("LZMA: 64bit support not enabled.\n");
return SZ_ERROR_DATA;
if (outSizeHigh != (SizeT)-1 || outSize != (SizeT)-1) {
debug ("LZMA: 64bit support not enabled.\n");
return SZ_ERROR_DATA;
}
}
debug ("LZMA: Uncompresed size............ 0x%lx\n", outSizeFull);