Merge bitcoin/bitcoin#28952: fuzz: Avoid timeout in process_messages

fa825975b5 fuzz: Avoid timeout in process_messages (MarcoFalke)

Pull request description:

  Reduce the number of messages per fuzz input. There should be no reason to have more messages than that.

  This should also avoid timeouts, such as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=64548. CC https://github.com/bitcoin/bitcoin/issues/28812

ACKs for top commit:
  dergoegge:
    utACK fa825975b5

Tree-SHA512: eeff732f7b0bd9a71f23aeecbf813d31fe34d355b906fd0384a43075cbc3cebc46a26df741b0f337208d8b33b3e28210c9b9437e2eed77844f03131bb8f5f2a1

src/test/fuzz/process_messages.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2020-2022 The Bitcoin Core developers
+// Copyright (c) 2020-present The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -6,6 +6,8 @@
 #include <net.h>
 #include <net_processing.h>
 #include <protocol.h>
+#include <script/script.h>
+#include <sync.h>
 #include <test/fuzz/FuzzedDataProvider.h>
 #include <test/fuzz/fuzz.h>
 #include <test/fuzz/util.h>
@@ -14,9 +16,15 @@
 #include <test/util/net.h>
 #include <test/util/setup_common.h>
 #include <test/util/validation.h>
-#include <validation.h>
+#include <util/chaintype.h>
+#include <util/time.h>
 #include <validationinterface.h>
 
+#include <ios>
+#include <string>
+#include <utility>
+#include <vector>
+
 namespace {
 const TestingSetup* g_setup;
 } // namespace
@@ -55,7 +63,8 @@ FUZZ_TARGET(process_messages, .init = initialize_process_messages)
         connman.AddTestNode(p2p_node);
     }
 
-    LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 10000) {
+    LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 30)
+    {
         const std::string random_message_type{fuzzed_data_provider.ConsumeBytesAsString(CMessageHeader::COMMAND_SIZE).c_str()};
 
         const auto mock_time = ConsumeTime(fuzzed_data_provider);