1245d1388b netbase: extend CreateSock() to support creating arbitrary sockets (Vasil Dimov)
Pull request description:
Allow the callers of `CreateSock()` to pass all 3 arguments to the `socket(2)` syscall. This makes it possible to create sockets of any domain/type/protocol. In addition to extending arguments, some extra safety checks were put in place.
The need for this came up during the discussion in https://github.com/bitcoin/bitcoin/pull/30043#discussion_r1618837102
ACKs for top commit:
achow101:
ACK 1245d1388b
tdb3:
re ACK 1245d1388b
theStack:
re-ACK 1245d1388b
Tree-SHA512: cc86b56121293ac98959aed0ed77812d20702ed7029b5a043586f46e74295779c5354bb0d5f9e80be6c29e535df980d34c1dbf609064fb7ea3e5ca0f0ed54d6b