for n > 0 {
		if n < 17 {
			return FormatError("DHT has wrong length")
		}
		if err := d.readFull(d.tmp[:17]); err != nil {
			return err
		}
		tc := d.tmp[0] >> 4
		if tc > maxTc {
			return FormatError("bad Tc value")
		}
		th := d.tmp[0] & 0x0f
		// The baseline th <= 1 restriction is specified in table B.5.
		if th > maxTh || (d.baseline && th > 1) {
			return FormatError("bad Th value")
		}

			return nil, ErrNotFat
		} else {
			return nil, &FormatError{0, "invalid magic number", nil}
		}
	}
	offset := int64(4)

	// Read the number of FatArchHeaders that come after the fat_header.
	var narch uint32
	err = binary.Read(sr, binary.BigEndian, &narch)
	if err != nil {
		return nil, &FormatError{offset, "invalid fat_header", nil}
	}
	offset += 4

	if narch < 1 {

type Sym struct {
	Value uint64
	Type  rune
	Name  string
}

/*
 * Plan 9 a.out reader
 */

// formatError is returned by some operations if the data does
// not have the correct format for an object file.
type formatError struct {
	off int
	msg string
	val any
}

func (e *formatError) Error() string {
	msg := e.msg
	if e.val != nil {
		msg += fmt.Sprintf(" '%v'", e.val)
	}

	Sect  uint8
	Desc  uint16
	Value uint64
}

/*
 * Mach-O reader
 */

// FormatError is returned by some operations if the data does
// not have the correct format for an object file.
type FormatError struct {
	off int64
	msg string
	val any
}

func (e *FormatError) Error() string {
	msg := e.msg
	if e.val != nil {
		msg += fmt.Sprintf(" '%v'", e.val)
	}

func (d *decoder) processSOS(n int) error {
	if d.nComp == 0 {
		return FormatError("missing SOF marker")
	}
	if n < 6 || 4+2*d.nComp < n || n%2 != 0 {
		return FormatError("SOS has wrong length")
	}
	if err := d.readFull(d.tmp[:n]); err != nil {
		return err
	}
	nComp := int(d.tmp[0])
	if n != 4+2*nComp {
		return FormatError("SOS length inconsistent with number of components")
	}
	var scan [maxComponents]struct {

	// transparency, as opposed to palette transparency.
	useTransparent bool
	transparent    [6]byte
}

// A FormatError reports that the input is not a valid PNG.
type FormatError string

func (e FormatError) Error() string { return "png: invalid format: " + string(e) }

var chunkOrderError = FormatError("chunk out of order")

// An UnsupportedError reports that the input uses a valid but unimplemented PNG feature.

package jpeg

import (
	"image"
	"image/color"
	"image/internal/imageutil"
	"io"
)

// A FormatError reports that the input is not a valid JPEG.
type FormatError string

func (e FormatError) Error() string { return "invalid JPEG format: " + string(e) }

// An UnsupportedError reports that the input uses a valid but unimplemented JPEG feature.

	}

	if shoff < 0 {
		return nil, &FormatError{0, "invalid shoff", shoff}
	}
	if phoff < 0 {
		return nil, &FormatError{0, "invalid phoff", phoff}
	}

	if shoff == 0 && shnum != 0 {
		return nil, &FormatError{0, "invalid ELF shnum for shoff=0", shnum}
	}

	if shnum > 0 && shstrndx >= shnum {
		return nil, &FormatError{0, "invalid ELF shstrndx", shstrndx}
	}

			if err != nil {
				lastError = formatError(fmt.Sprintf("error: %v", err))
				return false, err
			}
			resp, err := client.Do(req)
			if err != nil {
				lastError = formatError(fmt.Sprintf("error: %v", err))
				return false, nil
			}
			defer func() {
				_ = resp.Body.Close()
			}()
			if resp.StatusCode != http.StatusOK {
				lastError = formatError(fmt.Sprintf("status code: %d", resp.StatusCode))

			// If we got an LDAP validation error, we need to send appropriate
			// error message back to client (likely mc).
			writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigLDAPValidation),
				validationErr.FormatError(), r.URL)
			return
		}

		writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigBadJSON), err.Error(), r.URL)
		return
	}

	// Update the actual server config on disk.