Defined in 3 files as a struct:

• contrib/ipfilter/ipsd/Celler/ip_compat.h, line 124 (as a struct)
• contrib/ipfilter/ipsend/.OLD/ip_compat.h, line 126 (as a struct)
• sys/netinet/ip_var.h, line 41 (as a struct)

Referenced in 7 files:

• contrib/traceroute/traceroute.c, line 1653
• sys/netinet/tcp_input.c
  • line 694
  • line 694
• sys/netinet/tcp_output.c
  • line 190
  • line 1129
• sys/netinet/tcpip.h, line 40
• sys/netinet/udp_usrreq.c
  • line 486
  • line 487
  • line 488
  • line 491
• sys/netinet/udp_var.h, line 41
• sys/netpfil/pf/in4_cksum.c
  • line 86
  • line 100