Defined in 4 files as a macro:

• contrib/tcpdump/ip.h, line 105 (as a macro)
• sys/contrib/ipfilter/netinet/ip_compat.h, line 772 (as a macro)
• sys/contrib/ipfilter/netinet/ip_compat.h, line 875 (as a macro)
• sys/netinet/ip.h, line 152 (as a macro)

Referenced in 11 files:

• contrib/ipfilter/ipsend/ipsopt.c
  • line 41
  • line 101
  • line 141
• contrib/ipfilter/ipsend/iptests.c, line 496
• contrib/ipfilter/lib/addipopt.c, line 44
• contrib/ipfilter/lib/ionames.c, line 15
• contrib/tcpdump/print-ip.c
  • line 46
  • line 292
• sbin/ping/ping.c
  • line 755
  • line 1348
• sys/contrib/ipfilter/netinet/fil.c, line 197
• sys/contrib/ipfilter/netinet/ip_compat.h
  • line 771
  • line 874
• sys/netinet/ip_icmp.c, line 904
• sys/netinet/ip_options.c, line 274
• sys/netpfil/ipfw/ip_fw2.c, line 336