Defined in 2 files as a macro:

• bsd/netinet/ip.h, line 95 (as a macro)
• osfmk/kdp/kdp_udp.h, line 103 (as a macro)

Referenced in 6 files:

• bsd/netinet/ip_compat.h
  • line 420
  • line 421
• bsd/netinet/ip_fw2.c
  • line 699
  • line 703
• bsd/netinet/ip_icmp.c, line 187
• bsd/netinet/ip_input.c
  • line 954
  • line 1021
• bsd/netinet/ip_output.c
  • line 1260
  • line 1261
  • line 1262
  • line 1266
  • line 1303
• bsd/netinet6/ipsec.c
  • line 989
  • line 2210