Change so that an empty session name always means the current sessions

even if given with, for example, -t '', and explicitly forbid empty
session names and those containing a : when they are created.

1 files changed, 4 insertions, 0 deletions

diff --git a/cmd-rename-session.c b/cmd-rename-session.c
index 018e537f..cbda700f 100644
--- a/cmd-rename-session.c
+++ b/cmd-rename-session.c
@@ -46,6 +46,10 @@ cmd_rename_session_exec(struct cmd *self, struct cmd_ctx *ctx)
 	const char	*newname;
 
 	newname = args->argv[0];
+	if (!session_check_name(newname)) {
+		ctx->error(ctx, "bad session name: %s", newname);
+		return (-1);
+	}
 	if (session_find(newname) != NULL) {
 		ctx->error(ctx, "duplicate session: %s", newname);
 		return (-1);