IP_FREEBIND       189 src/libsystemd-network/dhcp-network.c                 r = setsockopt(s, IPPROTO_IP, IP_FREEBIND, &on, sizeof(on));
IP_FREEBIND        80 src/shared/missing.h #ifndef IP_FREEBIND
IP_FREEBIND        95 src/shared/socket-label.c                         if (setsockopt(fd, IPPROTO_IP, IP_FREEBIND, &one, sizeof(one)) < 0)