Defined in 2 files as a macro:

• bsd/netinet/ip.h, line 88 (as a macro)
• osfmk/kdp/kdp_udp.h, line 94 (as a macro)

Referenced in 4 files:

• bsd/netinet/ip_compat.h
  • line 423
  • line 424
• bsd/netinet/ip_icmp.c, line 170
• bsd/netinet/ip_output.c
  • line 952
  • line 953
  • line 954
  • line 958
  • line 992
• bsd/netinet6/ipsec.c, line 2017