Defined in 2 files as a member:

• bsd/netinet/ip_var.h, line 69 (as a member)
• osfmk/kdp/kdp_udp.h, line 53 (as a member)

Referenced in 4 files:

• bsd/netinet/ip_compat.h, line 626
• bsd/netinet/tcpip.h, line 82
• bsd/netinet/udp_var.h, line 74
• osfmk/kdp/kdp_udp.h, line 73