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Merge bitcoin/bitcoin#21936: fuzz: Terminate immediately if a fuzzing harness tries to create a TCP socket (belt and suspenders)

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393992b049 fuzz: Terminate immediately if a fuzzing harness ever tries to create a TCP socket (belt and suspenders) (practicalswift)

Pull request description:

  Terminate immediately if a fuzzing harness ever to create a TCP socket (belt and suspenders).

  Obviously this _should_ never happen, but if it _does_ happen we want immediate termination instead of a TCP socket :)

ACKs for top commit:
  MarcoFalke:
    ACK 393992b049

Tree-SHA512: 5bbff1f7e9a58b3eae24f742b7daf3fc870424c985f29bed5931e47a708d9c0984bfd8762f43658cffa9c69d32f86d56deb48bc7e43821e3398052174b6a160e
This commit is contained in:
MarcoFalke 2021-05-21 09:00:16 +02:00
commit ac5f7f47c1
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1 changed files with 8 additions and 0 deletions
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8
src/test/fuzz/fuzz.cpp
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@ -4,10 +4,15 @@
#include <test/fuzz/fuzz.h>
#include <netaddress.h>
#include <netbase.h>
#include <test/util/setup_common.h>
#include <util/check.h>
#include <util/sock.h>
#include <cstdint>
#include <exception>
#include <memory>
#include <unistd.h>
#include <vector>
@ -29,6 +34,9 @@ static TypeTestOneInput* g_test_one_input{nullptr};
void initialize()
{
// Terminate immediately if a fuzzing harness ever tries to create a TCP socket.
CreateSock = [](const CService&) -> std::unique_ptr<Sock> { std::terminate(); };
bool should_abort{false};
if (std::getenv("PRINT_ALL_FUZZ_TARGETS_AND_ABORT")) {
for (const auto& t : FuzzTargets()) {