// arExportData takes an archive file and returns a ReadSeeker for the
// export data in that file. This assumes that there is only one
// object in the archive containing export data, which is not quite
// what gccgo does; gccgo concatenates together all the export data
// for all the objects in the file.  In practice that case does not arise.
func arExportData(archive io.ReadSeeker) (io.ReadSeeker, error) {

type Dependencies interface {
	// Run runs a command
	Run(cmd constants.IptablesCmd, iptVer *IptablesVersion, stdin io.ReadSeeker, args ...string) error
	// RunQuietlyAndIgnore runs a command quietly and ignores errors
	RunQuietlyAndIgnore(cmd constants.IptablesCmd, iptVer *IptablesVersion, stdin io.ReadSeeker, args ...string)

	// DetectIptablesVersion consults the available binaries and in-use tables to determine

func (s *Section) Data() ([]byte, error) {
	return saferio.ReadDataAt(s.sr, uint64(s.Size), 0)
}

// Open returns a new ReadSeeker reading the PE section s.
//
// If s.Offset is 0, the section has no contents, and all calls
// to the returned reader will return a non-nil error.
func (s *Section) Open() io.ReadSeeker {
	return io.NewSectionReader(s.sr, 0, 1<<63-1)
}

// Section characteristics flags.
const (

}

func (s *DependenciesStub) Run(cmd constants.IptablesCmd, iptVer *IptablesVersion, stdin io.ReadSeeker, args ...string) error {
	s.execute(false /*quietly*/, cmd, iptVer, stdin, args...)
	_ = s.writeAllToDryRunPath()
	return nil
}

func (s *DependenciesStub) RunQuietlyAndIgnore(cmd constants.IptablesCmd, iptVer *IptablesVersion, stdin io.ReadSeeker, args ...string) {
	s.execute(true /*quietly*/, cmd, iptVer, stdin, args...)

		}
	}
}

// Provides a fully populated http request instance, fails otherwise.
func mustNewRequest(method string, urlStr string, contentLength int64, body io.ReadSeeker, t *testing.T) *http.Request {
	req, err := newTestRequest(method, urlStr, contentLength, body)
	if err != nil {
		t.Fatalf("Unable to initialize new http request %s", err)
	}
	return req
}

	//
	// As a special case, if the ReadSeeker is of type noVerifyReadSeeker,
	// the verification from GODEBUG=goverifycache=1 is skipped.
	//
	// After a success call to Get, OutputFile(Entry.OutputID) must
	// exist on disk for until Close is called (at the end of the process).
	Put(ActionID, io.ReadSeeker) (_ OutputID, size int64, _ error)

// DummyDataGen returns a reader that repeats the bytes in `alphabets`
// upto the desired length.
type DummyDataGen struct {
	b           []byte
	idx, length int64
}

// NewDummyDataGen returns a ReadSeeker over the first `totalLength`
// bytes from the infinite stream consisting of repeated
// concatenations of `alphabets`.
//
// The skipOffset (generally = 0) can be used to skip a given number

	i := bytes.IndexByte(b, 0)
	if i == -1 {
		i = len(b)
	}
	return string(b[:i])
}

// StringTable is a COFF string table.
type StringTable []byte

func readStringTable(fh *FileHeader, r io.ReadSeeker) (StringTable, error) {
	// COFF string table is located right after COFF symbol table.
	if fh.PointerToSymbolTable <= 0 {
		return nil, nil
	}
	offset := fh.PointerToSymbolTable + COFFSymbolSize*fh.NumberOfSymbols

	return ErrNotImplemented
}

func (r *RealDependencies) executeXTables(cmd constants.IptablesCmd, iptVer *IptablesVersion, ignoreErrors bool, stdin io.ReadSeeker, args ...string) error {
	return ErrNotImplemented
}

func shouldUseBinaryForCurrentContext(iptablesBin string) (IptablesVersion, error) {
	return IptablesVersion{}, ErrNotImplemented

	return "unknown error"
}

// readOptionalHeader accepts an io.ReadSeeker pointing to optional header in the PE file
// and its size as seen in the file header.
// It parses the given size of bytes and returns optional header. It infers whether the
// bytes being parsed refer to 32 bit or 64 bit version of optional header.
func readOptionalHeader(r io.ReadSeeker, sz uint16) (any, error) {