6e1150ea3b fuzz: add guide to fuzzing with Eclipser v1.x (Alex Groce)
Pull request description:
MarcoFalke and practicalswift here's an Eclipser guide, reconstructed from their documentation and my docker history getting it up and running. It might be good if someone confirmed it actually works for them in a fresh ubuntu 20.04.
ACKs for top commit:
practicalswift:
ACK 6e1150ea3b
Tree-SHA512: ca855932fd7a2c1d1005d572ab5fabc26f42d779f9baf279783f08a43dd72ec60f57239135d30c2a82781e593626fec2c96bb19fb91e1b777cef2d83a54eba35
fd0be92cff doc: Add instructions on how to fuzz the P2P layer using Honggfuzz NetDriver (practicalswift)
Pull request description:
Add instructions on how to fuzz the P2P layer using [Honggfuzz NetDriver](http://blog.swiecki.net/2018/01/fuzzing-tcp-servers.html).
Honggfuzz NetDriver allows for very easy fuzzing of TCP servers such as Bitcoin Core without having to write any custom fuzzing harness. The `bitcoind` server process is largely fuzzed without modification.
This makes the fuzzing highly realistic: a bug reachable by the fuzzer is likely also remotely triggerable by an untrusted peer.
Top commit has no ACKs.
Tree-SHA512: 9e98cb30f00664c00c8ff9fd224ff9822bff3fd849652172df48dbaeade1dd1a5fc67ae53203f1966a1d4210671b35656009a2d8b84affccf3ddf1fd86124f6e
This commit includes a short comment in doc/fuzzing.md that gives
guidance on compiling Bitcoin Core with AFL instrumentation using
afl-gcc and afl-g++.
Fuzzing code uses C++17 specific code (e.g. std::optional), so it is not
possible to compile with --enable-fuzz and without --enable-c++17.
Thus, turn on --enable-c++17 whenever --enable-fuzz is used.
