Defined in 2 files as a macro:

• bsd/netinet/ip.h, line 89 (as a macro)
• osfmk/kdp/kdp_udp.h, line 95 (as a macro)

Referenced in 4 files:

• bsd/netinet/ip_compat.h
  • line 104
  • line 105
• bsd/netinet/ip_fw.c
  • line 383
  • line 388
  • line 394
  • line 399
  • line 403
  • line 422
  • line 423
  • line 493
  • line 510
  • line 657
• bsd/netinet/ip_input.c, line 705
• bsd/netinet6/ipsec.c, line 2016