s3:utils: explicitly check the return value of fscanf() to avoid unused warnings...

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

diff --git a/source3/utils/smbta-util.c b/source3/utils/smbta-util.c
index 6dfa0d524bea50dfc0ae0ea5da0887a20cc393af..4c2accd1304d79c352a96b87e745a14eda8b3a04 100644 (file)
--- a/source3/utils/smbta-util.c
+++ b/source3/utils/smbta-util.c
@@ -78,7 +78,7 @@ static void load_key_from_file(char *filename, char *key)
                exit(1);
        }
        l = fscanf(keyfile, "%s", key);
-       if (strlen(key) != 16) {
+       if (l != 1 || strlen(key) != 16) {
                printf("Key file in wrong format\n");
                fclose(keyfile);
                exit(1);