Ergo receives DIST packet along with the HANDSHAKE final packet.

[halturin]

Discussed in #115

^{Originally posted by xiaodoudou12 November 18, 2022}
my OTP version is Erlang/OTP 24 [erts-12.1.5] [source] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:1] [jit].
golang version is go1.18.ergo version is v1.999.211.
https://github.com/ergo-services/ergo/blob/v1.999.211/proto/dist/handshake.go:247

			case 'a':
				// 'a' + 16 (digest)
				if len(buffer) != 17 {
					return details, fmt.Errorf("malformed handshake ('a' length of digest)")
				}

				// 'a' + 16 (digest)
				digest := genDigest(dh.challenge, cookie)
				if bytes.Compare(buffer[1:17], digest) != 0 {
					return details, fmt.Errorf("malformed handshake ('a' digest)")
				}

				// handshaked
				return details, nil

sometime len(buffer) will more than 17
when like this, first receive 3 byte,then 45 byte,then 17 bytes, it work ok.

but like this,first recevie 3 byte, then 45 byte, then 122 bytes, it not work.

maybe handshake should think about TCP Stick Package.
maybe handshake should only need 17 bytes, the last bytes need take to distProto connection to read

[halturin]

fix released in v2.2.1