Merge pull request #60 from amondonedo/master

Updated LZ4 version 1.9.2

Author: Enmk

clickhouse/base/compressed.cpp

@@ -85,7 +85,7 @@ bool CompressedInput::Decompress() {
 
         data_ = Buffer(original);
 
-        if (LZ4_decompress_fast((const char*)tmp.data() + 9, (char*)data_.data(), original) < 0) {
+        if (LZ4_decompress_safe((const char*)tmp.data() + 9, (char*)data_.data(), compressed - 9, original) < 0) {
             throw std::runtime_error("can't decompress data");
         } else {
             mem_.Reset(data_.data(), original);

clickhouse/client.cpp

@@ -671,7 +671,7 @@ void Client::Impl::SendData(const Block& block) {
                 buf.resize(9 + LZ4_compressBound(tmp.size()));
 
                 // Compress data
-                int size = LZ4_compress((const char*)tmp.data(), (char*)buf.data() + 9, tmp.size());
+                int size = LZ4_compress_default((const char*)tmp.data(), (char*)buf.data() + 9, tmp.size(), buf.size() - 9);
                 buf.resize(9 + size);
 
                 // Fill header

contrib/lz4/LICENSE

@@ -1,5 +1,5 @@
 LZ4 Library
-Copyright (c) 2011-2014, Yann Collet
+Copyright (c) 2011-2016, Yann Collet
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without modification,