[lwip-devel] mdns build warning

[Axel Lin]

Hi,

I notice below build warning in the master tree:

src/apps/mdns/mdns.c: In function 'mdns_debug_print_answer':

src/apps/mdns/mdns.c:796:24: warning: ', rdata = ' directive output may be truncated writing 10 bytes into a region of size between 8 and 15 [-Wformat-truncation=]

   snprintf(string, 35, "Type = %2d, class = %1d, rdata = ", a->info.type, a->info.klass);

                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/apps/mdns/mdns.c:796:3: note: 'snprintf' output between 31 and 38 bytes into a destination of size 35

   snprintf(string, 35, "Type = %2d, class = %1d, rdata = ", a->info.type, a->info.klass);

   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~