network, you should also make sure that it provides a way for users to
get its source.  For example, if your program is a web application, its
interface could display a "Source" link that leads users to an archive
of the code.  There are many ways you could offer source, and different
solutions will be better for different programs; see section 13 for the
specific requirements.

pkg archive/tar, const TypeBlock ideal-char
pkg archive/tar, const TypeChar ideal-char
pkg archive/tar, const TypeCont ideal-char
pkg archive/tar, const TypeDir ideal-char
pkg archive/tar, const TypeFifo ideal-char
pkg archive/tar, const TypeLink ideal-char
pkg archive/tar, const TypeReg ideal-char
pkg archive/tar, const TypeRegA ideal-char
pkg archive/tar, const TypeSymlink ideal-char
pkg archive/tar, const TypeXGlobalHeader ideal-char

pkg archive/tar, const TypeBlock = 52
pkg archive/tar, const TypeChar = 51
pkg archive/tar, const TypeCont = 55
pkg archive/tar, const TypeDir = 53
pkg archive/tar, const TypeFifo = 54
pkg archive/tar, const TypeGNULongLink = 75
pkg archive/tar, const TypeGNULongLink ideal-char
pkg archive/tar, const TypeGNULongName = 76
pkg archive/tar, const TypeGNULongName ideal-char
pkg archive/tar, const TypeLink = 49
pkg archive/tar, const TypeReg = 48

pkg archive/zip, func RegisterCompressor(uint16, Compressor)
pkg archive/zip, func RegisterDecompressor(uint16, Decompressor)
pkg archive/zip, method (*File) DataOffset() (int64, error)
pkg archive/zip, type Compressor func(io.Writer) (io.WriteCloser, error)
pkg archive/zip, type Decompressor func(io.Reader) io.ReadCloser
pkg bufio, method (*Reader) Reset(io.Reader)
pkg bufio, method (*Writer) Reset(io.Writer)
pkg compress/flate, method (*Writer) Reset(io.Writer)