if len(skip) == 0 {
			skip = make([]byte, chunk)
		}
		if _, err := io.ReadFull(r.r, skip); err != nil {
			return r.wrapNonEOFError(relativeOffset, err)
		}
		relativeOffset += chunk
		size -= chunk
	}
	if size > 0 {
		if len(skip) == 0 {
			skip = make([]byte, size)
		}
		if _, err := io.ReadFull(r.r, skip); err != nil {
			return r.wrapNonEOFError(relativeOffset, err)
		}

//   - On wasip1/wasm, Reader uses random_get from wasi_snapshot_preview1.
var Reader io.Reader

// Read is a helper function that calls Reader.Read using io.ReadFull.
// On return, n == len(b) if and only if err == nil.
func Read(b []byte) (n int, err error) {
	return io.ReadFull(Reader, b)
}

// batched returns a function that calls f to populate a []byte by chunking it
// into subslices of, at most, readMax bytes.

// Extensions.
const (
	eText           = 0x01 // Plain Text
	eGraphicControl = 0xF9 // Graphic Control
	eComment        = 0xFE // Comment
	eApplication    = 0xFF // Application
)

func readFull(r io.Reader, b []byte) error {
	_, err := io.ReadFull(r, b)
	if err == io.EOF {
		err = io.ErrUnexpectedEOF
	}
	return err
}

func readByte(r io.ByteReader) (byte, error) {
	b, err := r.ReadByte()
	if err == io.EOF {

	"compress/flate"
	"io"
	"testing"
)

func TestRead(t *testing.T) {
	var n int = 4e6
	if testing.Short() {
		n = 1e5
	}
	b := make([]byte, n)
	n, err := io.ReadFull(Reader, b)
	if n != len(b) || err != nil {
		t.Fatalf("ReadFull(buf) = %d, %s", n, err)
	}

	var z bytes.Buffer
	f, _ := flate.NewWriter(&z, 5)
	f.Write(b)
	f.Close()
	if z.Len() < len(b)*99/100 {

					q := make([]byte, alignQ+n, alignQ+n+10)[alignQ:]
					if n&1 != 0 {
						p = p[:n]
					} else {
						q = q[:n]
					}
					if _, err := io.ReadFull(rand.Reader, p); err != nil {
						t.Fatal(err)
					}
					if _, err := io.ReadFull(rand.Reader, q); err != nil {
						t.Fatal(err)
					}

					d := make([]byte, alignD+n, alignD+n+10)
					for i := range d {
						d[i] = 0xdd
					}

	const (
		MaxMetadataSize = 1 << 20 // max. size of the metadata
		Version         = 1
	)

	var header [5]byte
	if _, err := io.ReadFull(ciphertext, header[:]); err != nil {
		return nil, err
	}
	if header[0] != Version {
		return nil, fmt.Errorf("config: unknown ciphertext version %d", header[0])
	}
	size := binary.LittleEndian.Uint32(header[1:])

	"bufio"
	"bytes"
	"io"
	"os"
	"strings"
)

func readLinuxProcCPUInfo(buf []byte) error {
	f, err := os.Open("/proc/cpuinfo")
	if err != nil {
		return err
	}
	defer f.Close()

	_, err = io.ReadFull(f, buf)
	if err != nil && err != io.ErrUnexpectedEOF {
		return err
	}

	return nil
}

func osCPUInfoName() string {
	modelName := ""
	cpuMHz := ""

		})
		defer t.Stop()
		entropy, err := os.Open(randomDevice)
		if err != nil {
			r.seedErr = err
			return
		}
		defer entropy.Close()
		_, r.seedErr = io.ReadFull(entropy, r.key[:])
	})
	if r.seedErr != nil {
		return 0, r.seedErr
	}

	r.mu.Lock()
	blockCipher, err := aes.NewCipher(r.key[:])
	if err != nil {
		r.mu.Unlock()
		return 0, err
	}
	var (

		}
	}
	if offset != b.currOffset {
		// Can never happen unless there are programmer bugs
		return 0, errUnexpected
	}
	b.h.Reset()
	_, err = io.ReadFull(b.rc, b.hashBytes)
	if err != nil {
		return 0, err
	}
	_, err = io.ReadFull(b.rc, buf)
	if err != nil {
		return 0, err
	}
	b.h.Write(buf)
	if !bytes.Equal(b.h.Sum(nil), b.hashBytes) {
		return 0, errFileCorrupt
	}

		rbuf := make([]byte, 2500)
		n, err := io.ReadFull(resp.Body, rbuf)
		checkErr(err, "2500 byte ReadFull")
		if n != 2500 {
			fatalf("ReadFull only read %d bytes", n)
		}
		if test.compressed == false && !bytes.Equal(bytes.Repeat([]byte{'x'}, 2500), rbuf) {
			fatalf("ReadFull didn't read 2500 'x'; got %q", string(rbuf))
		}
		resp.Body.Close()

		rest, err := io.ReadAll(bufr)
		checkErr(err, "ReadAll on remainder")