struct Auth;
struct Server;
+int cmd_ping_cli(struct Client *client, char *argv[], int argc);
+int cmd_ping_auth(struct Auth *auth, char *argv[], int argc);
+int cmd_pong_cli(struct Client *client, char *argv[], int argc);
+int cmd_pong_auth(struct Auth *auth, char *argv[], int argc);
int cmd_nick_cli(struct Client *client, char *argv[], int argc);
int cmd_nick_auth(struct Auth *auth, char *argv[], int argc);
int cmd_user_cli(struct Client *client, char *argv[], int argc);