Variables starting with `u' in netinet

• udb netinet/udp_usrreq.c:56
• udpcksum netinet/udp_usrreq.c:69
• udp_sendspace netinet/udp_usrreq.c:364
• udps_opackets netinet/udp_var.h:67
• UDP_TTL netinet/udp_usrreq.c:73
• uh_sum netinet/udp.h:45
• ui_u netinet/udp_var.h:42
• useloopback netinet/if_ether.c:158