Defined in 1 files as a macro:

• bsd/netinet/ip.h, line 191 (as a macro)

Referenced in 3 files:

• bsd/netinet/ip_compat.h
  • line 463
  • line 464
• bsd/netinet/ip_icmp.c, line 944
• bsd/netinet6/ah_core.c, line 643