sway

commit e3837ba634dd51482bb89cfa2b2f13f01bfcbcb6
parent 83c23f274c89e31473fd13b93f287e1c7516a040
Author: S. Christoffer Eliesen <christoffer@eliesen.no>
Date:   Mon, 19 Oct 2015 19:42:49 +0200

commands: Gracefully handle empty commands.

Before this patch sway would proceed into find_handler which would cause
a crash trying to parse a NULL string.

This could be triggered via e.g. `i3-msg -s $(sway --get-socketpath)`.

Diffstat:
M
sway/commands.c
 | 
5
+++++

1 file changed, 5 insertions(+), 0 deletions(-)
diff --git a/sway/commands.c b/sway/commands.c
@@ -1178,6 +1178,11 @@ enum cmd_status handle_command(char *_exec) {
 			// Split commands
 			cmd = argsep(&cmdlist, ",");
 			cmd += strspn(cmd, whitespace);
+			if (strcmp(cmd, "") == 0) {
+				sway_log(L_INFO, "Ignoring empty command.");
+				continue;
+			}
+
 			sway_log(L_INFO, "Handling command '%s'", cmd);
 			//TODO better handling of argv
 			int argc;