BYTE $0x1c; BYTE $0x1d; BYTE $0x1e; BYTE $0x1f
	BYTE $0x40; BYTE $0x5a; BYTE $0x7f; BYTE $0x7b
	BYTE $0x5b; BYTE $0x6c; BYTE $0x50; BYTE $0x7d
	BYTE $0x4d; BYTE $0x5d; BYTE $0x5c; BYTE $0x4e
	BYTE $0x6b; BYTE $0x60; BYTE $0x4b; BYTE $0x61
	BYTE $0xf0; BYTE $0xf1; BYTE $0xf2; BYTE $0xf3
	BYTE $0xf4; BYTE $0xf5; BYTE $0xf6; BYTE $0xf7
	BYTE $0xf8; BYTE $0xf9; BYTE $0x7a; BYTE $0x5e

	msg := []byte{
		0x85, 0x9e, 0xef, 0x2f, 0xd7, 0x8a, 0xca, 0x00, 0x30, 0x8b,
		0xdc, 0x47, 0x11, 0x93, 0xbf, 0x55, 0xbf, 0x9d, 0x78, 0xdb,
		0x8f, 0x8a, 0x67, 0x2b, 0x48, 0x46, 0x34, 0xf3, 0xc9, 0xc2,
		0x6e, 0x64, 0x78, 0xae, 0x10, 0x26, 0x0f, 0xe0, 0xdd, 0x8c,
		0x08, 0x2e, 0x53, 0xa5, 0x29, 0x3a, 0xf2, 0x17, 0x3c, 0xd5,
		0x0c, 0x6d, 0x5d, 0x35, 0x4f, 0xeb, 0xf7, 0x8b, 0x26, 0x02,
		0x1c, 0x25, 0xc0, 0x27, 0x12, 0xe7, 0x8c, 0xd4, 0x69, 0x4c,

		Precedence: 1,
		Label:      3,
	},
	{
		// "2001::/32"
		// Teredo
		Prefix:     netip.PrefixFrom(netip.AddrFrom16([16]byte{0x20, 0x01}), 32),
		Precedence: 5,
		Label:      5,
	},
	{
		// "2002::/16"
		// 6to4
		Prefix:     netip.PrefixFrom(netip.AddrFrom16([16]byte{0x20, 0x02}), 16),
		Precedence: 30,
		Label:      2,
	},
	{
		// "3ffe::/16"

	// to how other linkers handle this (for example this code in lld:
	// https://github.com/llvm/llvm-project/blob/2a3a79ce4c2149d7787d56f9841b66cacc9061d0/lld/MachO/Writer.cpp#L524).
	rv[6] &= 0xcf
	rv[6] |= 0x30
	rv[8] &= 0x3f
	rv[8] |= 0xc0

	return rv
}

// machoRewriteUuid copies over the contents of the Macho executable
// exef into the output file outexe, and in the process updates the

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package unix

const (
	AT_EACCESS          = 0x10
	AT_FDCWD            = -0x2
	AT_REMOVEDIR        = 0x80
	AT_SYMLINK_NOFOLLOW = 0x0020

	UTIME_OMIT = -0x2

	mask1b := byte(int8(t) >> 7) // mask1b is 0xFF iff one block is enough

	separator := byte(0x80) // gets reset to 0x00 once used
	for i := byte(0); i < chunk; i++ {
		mask := byte(int8(i-nx) >> 7) // 0x00 after the end of data

		// if we reached the end of the data, replace with 0x80 or 0x00
		d.x[i] = (^mask & separator) | (mask & d.x[i])

		// zero the separator once used
		separator &= mask

)

type OpenHow struct {
	Flags   uint64
	Mode    uint64
	Resolve uint64
}

const SizeofOpenHow = 0x18

const (
	RESOLVE_CACHED        = 0x20
	RESOLVE_BENEATH       = 0x8
	RESOLVE_IN_ROOT       = 0x10
	RESOLVE_NO_MAGICLINKS = 0x2
	RESOLVE_NO_SYMLINKS   = 0x4
	RESOLVE_NO_XDEV       = 0x1
)

type Siginfo struct {
	Signo int32
	Errno int32
	Code  int32

*/

package framer

import (
	"bytes"
	"errors"
	"io"
	"testing"
)

func TestRead(t *testing.T) {
	data := []byte{
		0x00, 0x00, 0x00, 0x04,
		0x01, 0x02, 0x03, 0x04,
		0x00, 0x00, 0x00, 0x03,
		0x05, 0x06, 0x07,
		0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x01,
		0x08,
	}
	b := bytes.NewBuffer(data)
	r := NewLengthDelimitedFrameReader(io.NopCloser(b))
	buf := make([]byte, 1)

	theArch := ld.Arch{
		Funcalign:        funcAlign,
		Maxalign:         maxAlign,
		Minalign:         minAlign,
		Dwarfregsp:       dwarfRegSP,
		Dwarfreglr:       dwarfRegLR,
		CodePad:          []byte{0x00, 0x00, 0x2a, 0x00}, // BREAK 0
		Adddynrel:        adddynrel,
		Archinit:         archinit,
		Archreloc:        archreloc,
		Archrelocvariant: archrelocvariant,
		Extreloc:         extreloc,
		Machoreloc1:      machoreloc1,

	if len(der) == 0 || der[len(der)-1]&0x80 != 0 {
		return OID{}, false
	}

	start := 0
	for i, v := range der {
		// ITU-T X.690, section 8.19.2:
		// The subidentifier shall be encoded in the fewest possible octets,
		// that is, the leading octet of the subidentifier shall not have the value 0x80.
		if i == start && v == 0x80 {
			return OID{}, false
		}
		if v&0x80 == 0 {
			start = i + 1
		}
	}