commands: Catch empty exec with --no-startup-id cases.

1 files changed, 5 insertions, 0 deletions

diff --git a/sway/commands.c b/sway/commands.c
index 41223937..5afddc4a 100644
--- a/sway/commands.c
+++ b/sway/commands.c
@@ -190,6 +190,11 @@ static enum cmd_status cmd_exec_always(int argc, char **argv) {
         char *tmp = NULL;
         if (strcmp((char*)*argv, "--no-startup-id") == 0) {
                 sway_log(L_INFO, "exec switch '--no-startup-id' not supported, ignored.");
+
+                if (!checkarg(argc - 1, "exec_always", EXPECTED_MORE_THAN, 0)) {
+                        return CMD_FAILURE;
+                }
+
                 tmp = join_args(argv + 1, argc - 1);
         } else {
                 tmp = join_args(argv, argc);