> /usr/include/x86_64-linux-gnu/bits/stdio2.h:36:10: note: ‘__builtin___sprintf_chk’ output 2 or more bytes (assuming 4097) into a 
> destination of size 4096

Yeah, I like those warnings "up to 4097 bytes written to a buffer of 4096 bytes". And it's even not a security issue, since the source of the data comes from elogd.cfg which only the owner can modify.

Basically this calls to rewrite elog completely with std::string. Maybe one day I retire and have some time for that...

Stefan