This should use a const pointer for the input stream. Fix this and also add a proper comment.
Signed-off-by: Simon Glass sjg@chromium.org ---
lib/lzma/LzmaTools.c | 4 ++-- lib/lzma/LzmaTools.h | 17 +++++++++++++++-- 2 files changed, 17 insertions(+), 4 deletions(-)
diff --git a/lib/lzma/LzmaTools.c b/lib/lzma/LzmaTools.c index 521258e623..af88900d31 100644 --- a/lib/lzma/LzmaTools.c +++ b/lib/lzma/LzmaTools.c @@ -37,8 +37,8 @@ static void *SzAlloc(void *p, size_t size) { return malloc(size); } static void SzFree(void *p, void *address) { free(address); }
-int lzmaBuffToBuffDecompress (unsigned char *outStream, SizeT *uncompressedSize, - unsigned char *inStream, SizeT length) +int lzmaBuffToBuffDecompress(unsigned char *outStream, SizeT *uncompressedSize, + const unsigned char *inStream, SizeT length) { int res = SZ_ERROR_DATA; int i; diff --git a/lib/lzma/LzmaTools.h b/lib/lzma/LzmaTools.h index e52dfb8fac..2c46859a62 100644 --- a/lib/lzma/LzmaTools.h +++ b/lib/lzma/LzmaTools.h @@ -13,6 +13,19 @@
#include <lzma/LzmaTypes.h>
-extern int lzmaBuffToBuffDecompress (unsigned char *outStream, SizeT *uncompressedSize, - unsigned char *inStream, SizeT length); +/** + * lzmaBuffToBuffDecompress() - Decompress LZMA data + * + * @outStream: output buffer + * @uncompressedSize: On entry, the mnaximum uncompressed size of the data; + * on exit, the actual uncompressed size after processing + * @inStream: Compressed bytes to decompress + * @length: Sizeof @inStream + * @return 0 if OK, SZ_ERROR_DATA if the data is in a format that cannot be + * decompressed; SZ_ERROR_OUTPUT_EOF if *uncompressedSize is too small; + * see also other SZ_ERROR... values + */ +int lzmaBuffToBuffDecompress(unsigned char *outStream, SizeT *uncompressedSize, + const unsigned char *inStream, SizeT length); + #endif