netbuf fixups

Change-Id: I3e172dbd63c5a68721256857681ebca397ab3bf4
lcbio fixups

Change-Id: I375590eda44673633f1499d515789f9ea50211bb
socktest fixups

Change-Id: I24e79bf7f7f5434885c5ba6cb5bc73de14d22a00