set challenge slot

challenge.cpp

@@ -84,7 +84,7 @@ error:
 auto Challenge::start(Connection &connection, const std::string_view user, EVP_PKEY_Ref ref) -> std::shared_ptr<Challenge>
 {
     auto self = std::make_shared<Challenge>(std::move(ref), connection);
-    connection.sig_ircmsg.connect([self](auto cmd, auto &msg) { self->on_ircmsg(cmd, msg); });
+    self->slot_ = connection.sig_ircmsg.connect([self](auto cmd, auto &msg) { self->on_ircmsg(cmd, msg); });
     connection.send_challenge(user);
     return self;
 }

irc_command.hpp

@@ -270,6 +270,7 @@ enum class IrcCommand
     NOTICE,
     PART,
     PING,
+    PONG,
     PRIVMSG,
     QUIT,
     SETNAME,

irc_commands.gperf

@@ -272,6 +272,7 @@ NICK, IrcCommand::NICK, 1, 1
 NOTICE, IrcCommand::NOTICE, 2, 2
 PART, IrcCommand::PART, 1, 2
 PING, IrcCommand::PING, 1, 1
+PONG, IrcCommand::PONG, 1, 2
 PRIVMSG, IrcCommand::PRIVMSG, 2, 2
 QUIT, IrcCommand::QUIT, 1, 1
 SETNAME, IrcCommand::SETNAME, 1, 1