On Mon, 19 Aug 2019, Daniel Wagner wrote:

> Increase the size of the char buffer. gcc 9.1.1 reports:
> 
> src/sigwaittest/sigwaittest.c:494:5: note: ‘sprintf’ output between 5 and 14 bytes into a destination of size 8
>   494 |     sprintf(f_opt, "-fr%d", i);
>       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~
> src/sigwaittest/sigwaittest.c:522:24: warning: ‘%d’ directive writing between 1 and 10 bytes into a region of size 5 [-Wformat-overflow=]
>   522 |     sprintf(f_opt, "-fs%d", i);
>       |                        ^~
> 
> Signed-off-by: Daniel Wagner <wagi@monom.org>
> ---
>  src/sigwaittest/sigwaittest.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/src/sigwaittest/sigwaittest.c b/src/sigwaittest/sigwaittest.c
> index 59f28a5babcb..2d0c04132fa7 100644
> --- a/src/sigwaittest/sigwaittest.c
> +++ b/src/sigwaittest/sigwaittest.c
> @@ -352,7 +352,7 @@ int main(int argc, char *argv[])
>  	struct params *sender = NULL;
>  	sigset_t sigset;
>  	void *param = NULL;
> -	char f_opt[8];
> +	char f_opt[14];
>  	struct timespec launchdelay, maindelay;
>  
>  	process_options(argc, argv);
> -- 
> 2.21.0
> 
Signed-off-by: John Kacur <jkacur@redhat.com>