Moves all of the content from `bitcoin/p2p` into `p2p`.
`TryFrom<Network>` must be implemented for `Network -> Magic` now that
`Network` is a foreign, non-exhaustive type. Ser/de test is updated
accordingly, as well as the `Magic::from_network` constructor, which I
have opted to return an `Option<Self>`. The `TryFrom` implementation
uses a new `UnknownNetworkError(Network)` that mirrors the `Magic ->
Network` error.
The example handshake does not generate a random nonce for the version
message, as there is no `rand` dependency in this crate and the program
only makes a single, user-defined connection.
It appears we can do better than copying and pasting the consensus
encoding macros and functions from `bitcoin` without doing weird
cross-crate macros that require some special knowledge of the crate to
know when they will compile.
The `network` module deals with data types and logic related to
internetworking bitcoind nodes, this is commonly referred to as the p2p
layer.
Rename the `network` module to `p2p` and fix all the paths.
AFAICT we literally never used this; it was available only on the
bitcoin targets and not the honggfuzz ones; AFL has a broken dep
tree (or at least, requires some more MSRV pins that I did not care
to investigate).
Just remove it entirely.
rustaceanrob
Tobin C. Harding
Andrew Poelstra