sway

commit e4f80877bea48eb29b4ddfbce923bf78a6694ffb
parent 1ab3e1023e026cf9d6c51497739401fe580bf304
Author: thuck <denisdoria@gmail.com>
Date:   Fri,  3 Jun 2016 00:05:10 +0200

Fix output command when varible not set

This should fix the corner case where a variable is not assigned, but used anyway.
This should solve partially the issue #681.

Diffstat:
M
sway/commands.c
 | 
2
+-

1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sway/commands.c b/sway/commands.c
@@ -1632,7 +1632,7 @@ static struct cmd_results *cmd_output(int argc, char **argv) {
 			}
 			char *src = join_args(argv + i, argc - i - 1);
 			char *mode = argv[argc - 1];
-			if (wordexp(src, &p, 0) != 0) {
+			if (wordexp(src, &p, 0) != 0 || p.we_wordv[0] == NULL) {
 				return cmd_results_new(CMD_INVALID, "output", "Invalid syntax (%s)", src);
 			}
 			free(src);