Defined in 1 files as a macro:

• bsd/netinet/ip_var.h, line 195 (as a macro)

Referenced in 2 files:

• bsd/netinet/ip_output.c
  • line 332
  • line 342
  • line 767
  • line 1308
  • line 1475
  • line 1510
• bsd/netinet6/ipsec.c, line 4119