Hi all. 

Recently added check for buffer size breaks build
with GCC 10.3.0, its internal analysis suspect that code
is not correct. Build fails with error:

  '__builtin_strncpy' specified bound depends on the length
  of the source argument [-Werror=stringop-overflow=]

on src/dnsproxy.c:1794

I not sure if suppressing compiler warning is a good practice 
in Connman, but it fixes build for me :-)

Lukas