Symbol: V_in_loopback_mask
sys/netinet/in.c
300
preflen = 33 - ffs(V_in_loopback_mask);
sys/netinet/in.c
306
V_in_loopback_mask = 0xffffffff << (32 - preflen);
sys/netinet/in.h
385
(((in_addr_t)(i) & V_in_loopback_mask) == 0x7f000000)