bindat-pack
bindat-pack is a compiled Lisp function in `bindat.el
'.
(bindat-pack SPEC STRUCT &optional BINDAT-RAW BINDAT-IDX)
Return binary data packed according to SPEC for structured data STRUCT.
Optional third arg BINDAT-RAW is a pre-allocated unibyte string or vector to
pack into.
Optional fourth arg BINDAT-IDX is the starting offset into BINDAT-RAW.