Structs starting with `b' in Net2

• bcdinfo netccitt/pk_subr.c:442
• bdevsw sys/conf.h:43
• blah netiso/xebec/test_def.h:2
• bpf_d net/bpfdesc.h:45
• bpf_hdr net/bpf.h:106
• bpf_if net/bpfdesc.h:80
• bpf_insn net/bpf.h:196
• bpf_program net/bpf.h:55
• bpf_stat net/bpf.h:63
• bt_bad sys/dkbad.h:59
• buf conf/param.c:112
• bufhd sys/buf.h:61