On Thu, 25 Jun 2020 02:12:42 +0200
Andrew Lunn <and...@lunn.ch> wrote:
> diff --git a/internal.h b/internal.h
> index edb07bd..7135140 100644
> --- a/internal.h
> +++ b/internal.h
> @@ -23,6 +23,8 @@
> #include <sys/ioctl.h>
> #include <net/if.h>
>
> +#include "json_writer.h"
> +
> #define maybe_unused __attribute__((__unused__))
>
> /* internal for netlink interface */
> @@ -221,6 +223,8 @@ struct cmd_context {
> int argc; /* number of arguments to the sub-command */
> char **argp; /* arguments to the sub-command */
> unsigned long debug; /* debugging mask */
> + bool json; /* Output JSON, if supported */
> + json_writer_t *jw; /* JSON writer instance */
You can avoid the boolean by just checking for NULL jw variable.
