Defined in 4 files as a macro:

• external/bsd/dhcpcd/dist/src/dhcp.c, line 93 (as a macro)
• external/bsd/tcpdump/dist/ip.h, line 155 (as a macro)
• external/mpl/dhcp/dist/includes/netinet/ip.h, line 157 (as a macro)
• sys/netinet/ip.h, line 228 (as a macro)

Referenced in 6 files:

• external/bsd/dhcpcd/dist/src/dhcp.c
  • line 92
  • line 1644
• sys/external/bsd/ipf/netinet/ip_fil_netbsd.c, line 873
• sys/lib/libsa/ip.c, line 98
• sys/netinet/ip_input.c, line 165
• tests/net/icmp/t_ping.c, line 402
• usr.bin/rump_dhcpclient/net.c, line 438