000002c0  80 93 d4 f7 dd 70 14 24  d7 70 0a 46 a1 16 03 03  |.....p.$.p.F....|
000002d0  00 ac 0c 00 00 a8 03 00  1d 20 03 05 56 dd 40 c0  |......... ..V.@.|
000002e0  b6 4d 5a df 26 e7 4a f1  a8 47 ef af 12 6e 5f 01  |.MZ.&.J..G...n_.|
000002f0  2a 7a 19 1a 45 52 8c 47  d2 53 08 04 00 80 8a 6a  |*z..ER.G.S.....j|
00000300  9d 8b 38 73 da 92 bc f6  05 79 90 af 7a 43 59 62  |..8s.....y..zCYb|

	switch {
	case bytes.HasPrefix(ident, []byte("\x7FELF")):
		f, err := elf.NewFile(r)
		if err != nil {
			return "", "", errUnrecognizedFormat
		}
		x = &elfExe{f}
	case bytes.HasPrefix(ident, []byte("MZ")):
		f, err := pe.NewFile(r)
		if err != nil {
			return "", "", errUnrecognizedFormat
		}
		x = &peExe{f}
	case bytes.HasPrefix(ident, []byte("\xFE\xED\xFA")) || bytes.HasPrefix(ident[1:], []byte("\xFA\xED\xFE")):

		if err != nil {
			return nil, fmt.Errorf("error reading fat Mach-O file %s: %v", name, err)
		}
		return f, nil
	}

	peMagic := string(header[:2])
	if peMagic == "MZ" {
		f, err := b.openPE(name, start, limit, offset)
		if err != nil {
			return nil, fmt.Errorf("error reading PE file %s: %v", name, err)
		}
		return f, nil
	}