Symbol: SIOCSIFRTLABEL
regress/sbin/ifconfig/ifaddr.c
707
if (ioctl(sock, SIOCSIFRTLABEL, &ifr) == -1)
sbin/ifconfig/ifconfig.c
1370
if (ioctl(sock, SIOCSIFRTLABEL, &ifr) == -1)
sys/net/if.c
2371
case SIOCSIFRTLABEL: