base64: fix for unsigned chars (e.g. ARM).

[ccan] / ccan / opt / test / utils.c

diff --git a/ccan/opt/test/utils.c b/ccan/opt/test/utils.c
index 2ff04884ebdc0efe6dc4d9dd8fe4ae6af4b9175b..61199fb4676dbdeaa8a5cdf81a6fba7a27d5de5d 100644 (file)
--- a/ccan/opt/test/utils.c
+++ b/ccan/opt/test/utils.c
@@ -21,9 +21,10 @@ char *test_arg(const char *optarg, const char *arg)
        return NULL;
 }
 
-void show_arg(char buf[OPT_SHOW_LEN], const char *arg)
+bool show_arg(char *buf, size_t len, const char *arg)
 {
-       strncpy(buf, arg, OPT_SHOW_LEN);
+       strncpy(buf, arg, len);
+       return true;
 }
 
 char *err_output = NULL;