1 files changed, 167 insertions, 0 deletions
diff --git a/src/test/fuzz/deserialize.cpp b/src/test/fuzz/deserialize.cpp
new file mode 100644
index 0000000000..97d7633715
--- /dev/null
+++ b/src/test/fuzz/deserialize.cpp
@@ -0,0 +1,167 @@
+// Copyright (c) 2009-2019 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <addrman.h>
+#include <blockencodings.h>
+#include <chain.h>
+#include <coins.h>
+#include <compressor.h>
+#include <consensus/merkle.h>
+#include <net.h>
+#include <primitives/block.h>
+#include <protocol.h>
+#include <pubkey.h>
+#include <script/script.h>
+#include <streams.h>
+#include <undo.h>
+#include <version.h>
+
+#include <stdint.h>
+#include <unistd.h>
+
+#include <algorithm>
+#include <memory>
+#include <vector>
+
+#include <test/fuzz/fuzz.h>
+
+void test_one_input(std::vector<uint8_t> buffer)
+{
+    CDataStream ds(buffer, SER_NETWORK, INIT_PROTO_VERSION);
+    try {
+        int nVersion;
+        ds >> nVersion;
+        ds.SetVersion(nVersion);
+    } catch (const std::ios_base::failure& e) {
+        return;
+    }
+
+#if BLOCK_DESERIALIZE
+            try
+            {
+                CBlock block;
+                ds >> block;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif TRANSACTION_DESERIALIZE
+            try
+            {
+                CTransaction tx(deserialize, ds);
+            } catch (const std::ios_base::failure& e) {return;}
+#elif BLOCKLOCATOR_DESERIALIZE
+            try
+            {
+                CBlockLocator bl;
+                ds >> bl;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif BLOCKMERKLEROOT
+            try
+            {
+                CBlock block;
+                ds >> block;
+                bool mutated;
+                BlockMerkleRoot(block, &mutated);
+            } catch (const std::ios_base::failure& e) {return;}
+#elif ADDRMAN_DESERIALIZE
+            try
+            {
+                CAddrMan am;
+                ds >> am;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif BLOCKHEADER_DESERIALIZE
+            try
+            {
+                CBlockHeader bh;
+                ds >> bh;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif BANENTRY_DESERIALIZE
+            try
+            {
+                CBanEntry be;
+                ds >> be;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif TXUNDO_DESERIALIZE
+            try
+            {
+                CTxUndo tu;
+                ds >> tu;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif BLOCKUNDO_DESERIALIZE
+            try
+            {
+                CBlockUndo bu;
+                ds >> bu;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif COINS_DESERIALIZE
+            try
+            {
+                Coin coin;
+                ds >> coin;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif NETADDR_DESERIALIZE
+            try
+            {
+                CNetAddr na;
+                ds >> na;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif SERVICE_DESERIALIZE
+            try
+            {
+                CService s;
+                ds >> s;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif MESSAGEHEADER_DESERIALIZE
+            CMessageHeader::MessageStartChars pchMessageStart = {0x00, 0x00, 0x00, 0x00};
+            try
+            {
+                CMessageHeader mh(pchMessageStart);
+                ds >> mh;
+                if (!mh.IsValid(pchMessageStart)) {return;}
+            } catch (const std::ios_base::failure& e) {return;}
+#elif ADDRESS_DESERIALIZE
+            try
+            {
+                CAddress a;
+                ds >> a;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif INV_DESERIALIZE
+            try
+            {
+                CInv i;
+                ds >> i;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif BLOOMFILTER_DESERIALIZE
+            try
+            {
+                CBloomFilter bf;
+                ds >> bf;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif DISKBLOCKINDEX_DESERIALIZE
+            try
+            {
+                CDiskBlockIndex dbi;
+                ds >> dbi;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif TXOUTCOMPRESSOR_DESERIALIZE
+            CTxOut to;
+            CTxOutCompressor toc(to);
+            try
+            {
+                ds >> toc;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif BLOCKTRANSACTIONS_DESERIALIZE
+            try
+            {
+                BlockTransactions bt;
+                ds >> bt;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif BLOCKTRANSACTIONSREQUEST_DESERIALIZE
+            try
+            {
+                BlockTransactionsRequest btr;
+                ds >> btr;
+            } catch (const std::ios_base::failure& e) {return;}
+#else
+#error Need at least one fuzz target to compile
+#endif
+}