aboutsummaryrefslogtreecommitdiffstats
path: root/sysutils/u-boot-duovero/files/patch-common_cmd__test.c
blob: f806a467d1dd09524217bc9df3a0c83a574ffdea (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
--- common/cmd_test.c.orig  2014-10-14 08:47:15 UTC
+++ common/cmd_test.c
@@ -65,9 +65,14 @@ static int do_test(cmd_tbl_t *cmdtp, int
    char * const *ap;
    int i, op, left, adv, expr, last_expr, last_unop, last_binop;
 
-   /* args? */
-   if (argc < 3)
+   /*
+    * If no args, that's bogus, return false.
+    * If op is -z and no other args, answer is Yes, string is empty.
+    */
+   if (argc < 2)
        return 1;
+   else if (argc == 2)
+       return !(strcmp(argv[1], "-z") == 0);
 
 #ifdef DEBUG
    {