Defined in 4 files as a member:
- external/bsd/tcpdump/dist/ip.h, line 123 (as a member)
- external/mpl/dhcp/dist/includes/netinet/ip.h, line 127 (as a member)
- sys/netinet/ip.h, line 195 (as a member)
- tests/usr.bin/xlint/lint1/d_packed_structs.c, line 13 (as a member)