print zlib error codes

Gzip.cpp

@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2013-2016, The PurpleI2P Project
+* Copyright (c) 2013-2017, The PurpleI2P Project
 *
 * This file is part of Purple i2pd project and licensed under BSD3
 *
@@ -9,11 +9,13 @@
 #include <inttypes.h>
 #include <string.h> /* memset */
 #include <iostream>
-
+#include "Log.h"
 #include "Gzip.h"
 
-namespace i2p {
-namespace data {
+namespace i2p 
+{
+namespace data 
+{
 	const size_t GZIP_CHUNK_SIZE = 16384;
 
 	GzipInflator::GzipInflator (): m_IsDirty (false)
@@ -36,9 +38,10 @@ namespace data {
 		m_Inflator.next_out = out;
 		m_Inflator.avail_out = outLen;
 		int err;
-		if ((err = inflate (&m_Inflator, Z_NO_FLUSH)) == Z_STREAM_END) {
+		if ((err = inflate (&m_Inflator, Z_NO_FLUSH)) == Z_STREAM_END) 
 			return outLen - m_Inflator.avail_out;
-		}
+		// else
+		LogPrint (eLogError, "Gzip: Inflate error ", err);
 		return 0;
 	}
 
@@ -49,17 +52,20 @@ namespace data {
 		m_Inflator.next_in = const_cast<uint8_t *>(in);
 		m_Inflator.avail_in = inLen;
 		int ret;
-		do {
+		do 
+		{
 			m_Inflator.next_out = out;
 			m_Inflator.avail_out = GZIP_CHUNK_SIZE;
 			ret = inflate (&m_Inflator, Z_NO_FLUSH);
-			if (ret < 0) {
+			if (ret < 0) 
+			{
 				inflateEnd (&m_Inflator);
 				os.setstate(std::ios_base::failbit);
 				break;
 			}
 			os.write ((char *)out, GZIP_CHUNK_SIZE - m_Inflator.avail_out);
-		} while (!m_Inflator.avail_out); // more data to read
+		} 
+		while (!m_Inflator.avail_out); // more data to read
 		delete[] out;
 	}
 
@@ -99,9 +105,10 @@ namespace data {
 		m_Deflator.next_out = out;
 		m_Deflator.avail_out = outLen;
 		int err;
-		if ((err = deflate (&m_Deflator, Z_FINISH)) == Z_STREAM_END) {
+		if ((err = deflate (&m_Deflator, Z_FINISH)) == Z_STREAM_END) 
 			return outLen - m_Deflator.avail_out;
-		} /* else */
+		// else
+		LogPrint (eLogError, "Gzip: Deflate error ", err);
 		return 0;
 	}
 } // data