fix #874

coverity reported a warning regarding a memcpy() overwrite.
This is a false positive (the memory area is large enough),
but it's true that it's not trivial to determine (encompassing struct),
and it's proper anyway to only memcpy() just the right amount of data.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/lz4.c b/lib/lz4.c
index 427673e..aca97ed 100644
--- a/lib/lz4.c
+++ b/lib/lz4.c
@@ -1606,7 +1606,7 @@ int LZ4_compress_fast_continue (LZ4_stream_t* LZ4_stream,
                  * cost to copy the dictionary's tables into the active context,
                  * so that the compression loop is only looking into one table.
                  */
-                LZ4_memcpy(streamPtr, streamPtr->dictCtx, sizeof(LZ4_stream_t));
+                LZ4_memcpy(streamPtr, streamPtr->dictCtx, sizeof(*streamPtr));
                 result = LZ4_compress_generic(streamPtr, source, dest, inputSize, NULL, maxOutputSize, limitedOutput, tableType, usingExtDict, noDictIssue, acceleration);
             } else {
                 result = LZ4_compress_generic(streamPtr, source, dest, inputSize, NULL, maxOutputSize, limitedOutput, tableType, usingDictCtx, noDictIssue, acceleration);