Defined in 1 files as a macro:

• bsd/netinet/in.h, line 106 (as a macro)

Referenced in 4 files:

• bsd/netinet/igmp.c, line 502
• bsd/netinet/in_proto.c
  • line 164
  • line 300
• bsd/netinet/ip_input.c, line 875
• bsd/netinet/ip_mroute.c, line 584