From e3837ba634dd51482bb89cfa2b2f13f01bfcbcb6 Mon Sep 17 00:00:00 2001
From: "S. Christoffer Eliesen" <christoffer@eliesen.no>
Date: Mon, 19 Oct 2015 19:42:49 +0200
Subject: 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)`.
---
sway/commands.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/sway/commands.c b/sway/commands.c
index 5afddc4a..eb77c172 100644
--- 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;
--
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