Re: Master and -Wformat-overflow warning

Hi Jeffrey,

On Tue, 2019-04-30 at 20:43 -0400, Jeffrey Walton wrote:
> It looks like GCC has one squawk:
> 
> vgdb.c: In function ‘standalone_send_commands’:
> vgdb.c:1008:21: warning: ‘%02x’ directive writing between 2 and 8
> bytes into a r
> egion of size 3 [-Wformat-overflow=]
>        sprintf(hex, "%02x", cksum);
>                      ^~~~
> vgdb.c:1008:20: note: directive argument in the range [0, 2147483647]
>        sprintf(hex, "%02x", cksum);
>                     ^~~~~~

But cksum is an unsigned char, so value is be between [0, 255]. Which
is max 2 hex chars.

Could you retry with GCC8 or GCC9?
And file a bug against GCC otherwise?

Thanks,

Mark


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