Function DoPkt 

pub unsafe fn DoPkt(
    DOSBase: *mut Library,
    port: *mut MsgPort,
    action: LONG,
    arg1: LONG,
    arg2: LONG,
    arg3: LONG,
    arg4: LONG,
    arg5: LONG,
) -> LONG

libname: “dos.library” (V36) (Kickstart 2.0)