Do not run any command line command from the client which starts the

server until after the configuration file completes. This prevents it
racing against run-shell or if-shell in .tmux.conf that run in the
background.

1 files changed, 15 insertions, 0 deletions

diff --git a/cfg.c b/cfg.c
index c625a2fb..35192dc0 100644
--- a/cfg.c
+++ b/cfg.c
@@ -31,6 +31,7 @@ struct cmd_q		*cfg_cmd_q;
 int			 cfg_finished;
 int			 cfg_references;
 struct causelist	 cfg_causes;
+struct client		*cfg_client;
 
 int
 load_cfg(const char *path, struct cmd_q *cmdq, char **cause)
@@ -127,6 +128,20 @@ cfg_default_done(unused struct cmd_q *cmdq)
 
 	cmdq_free(cfg_cmd_q);
 	cfg_cmd_q = NULL;
+
+	if (cfg_client != NULL) {
+		/*
+		 * The client command queue starts with client_exit set to 1 so
+		 * only continue if not empty (that is, we have been delayed
+		 * during configuration parsing for long enough that the
+		 * MSG_COMMAND has arrived), else the client will exit before
+		 * the MSG_COMMAND which might tell it not to.
+		 */
+		if (!TAILQ_EMPTY(&cfg_client->cmdq->queue))
+			cmdq_continue(cfg_client->cmdq);
+		cfg_client->references--;
+		cfg_client = NULL;
+	}
 }
 
 void