Ifinfo fails to compile; if you ifdef out the obsolete if_data
struct references and your kerenl has gif(4) interfaces, it dumps
core. It's also missing a few interface descriptions.
Fix: Appended is a context diff to tools/tools/ifinfo/ifinfo.c
RCS file: RCS/ifinfo.c,v
retrieving revision 1.1
fun 1182 % ifinfo
promiscuous listeners: 0
send queue length: 0
send queue max length: 50
send queue drops: 0
Segmentation fault (core dumped)
Applied in revs. 1.6 and 18.104.22.168.