flags_lo           19 core/ngx_resolver.c     u_char  flags_lo;
flags_lo          983 core/ngx_resolver.c     flags = (query->flags_hi << 8) + query->flags_lo;
flags_lo         1753 core/ngx_resolver.c     query->flags_hi = 1; query->flags_lo = 0;
flags_lo         1829 core/ngx_resolver.c     query->flags_hi = 1; query->flags_lo = 0;