fix: node connection add missing verack message (#160)

src/network/peer.zig

@@ -82,6 +82,8 @@ pub const Peer = struct {
  .version => |vm| {
  self.protocol_version = @min(self.config.protocol_version, vm.version);
  self.services = vm.addr_from.services;
+ // send verack message
+ try self.sendVerackMessage();
  },
 
  .verack => return,
@@ -119,6 +121,18 @@ pub const Peer = struct {
  );
  }
 
+ /// Send verack message to peer
+ fn sendVerackMessage(self: *const Peer) !void {
+ const verack_message = protocol.messages.VerackMessage{}; // Empty message, as verack doesn't carry data
+ try wire.sendMessage(
+ self.allocator,
+ self.stream.writer(),
+ self.config.protocol_version,
+ self.config.network_id,
+ verack_message,
+ );
+ }
+
  pub fn listen(self: *Peer) void {
  std.log.info("Listening for messages from {any}", .{self.address});
  while (self.should_listen) {

src/network/protocol/messages/lib.zig

@@ -179,8 +179,6 @@ pub fn genericChecksum(m: anytype) [4]u8 {
 }
 
 pub fn genericSerialize(m: anytype, allocator: std.mem.Allocator) ![]u8 {
- std.debug.print("Type m: {}\n", .{@TypeOf(m)});
-
  comptime {
  if (!std.meta.hasMethod(@TypeOf(m), "hintSerializedLen")) @compileError("Expects m to have fn 'hintSerializedLen'.");
  if (!std.meta.hasMethod(@TypeOf(m), "serializeToWriter")) @compileError("Expects m to have fn 'serializeToWriter'.");