func (fd *FD) WriteTo(p []byte, sa syscall.Sockaddr) (int, error) {
	if err := fd.writeLock(); err != nil {
		return 0, err
	}
	defer fd.writeUnlock()
	if err := fd.pd.prepareWrite(fd.isFile); err != nil {
		return 0, err
	}
	for {
		err := syscall.Sendto(fd.Sysfd, p, 0, sa)
		if err == syscall.EINTR {
			continue
		}
		if err == syscall.EAGAIN && fd.pd.pollable() {

	}
	defer syscall.FreeAddrInfoW(result)
	if result == nil {
		return 0, newDNSError(syscall.EINVAL, network+"/"+service, "")
	}
	addr := unsafe.Pointer(result.Addr)
	switch result.Family {
	case syscall.AF_INET:
		a := (*syscall.RawSockaddrInet4)(addr)
		return int(syscall.Ntohs(a.Port)), nil
	case syscall.AF_INET6:
		a := (*syscall.RawSockaddrInet6)(addr)

	SIGCONT   = syscall.Signal(0x12)
	SIGIO     = syscall.Signal(0x1d)
	SIGPOLL   = syscall.Signal(0x1d)
	SIGPROF   = syscall.Signal(0x1b)
	SIGPWR    = syscall.Signal(0x1e)
	SIGSTKFLT = syscall.Signal(0x10)
	SIGSTOP   = syscall.Signal(0x13)
	SIGSYS    = syscall.Signal(0x1f)
	SIGTSTP   = syscall.Signal(0x14)
	SIGTTIN   = syscall.Signal(0x15)
	SIGTTOU   = syscall.Signal(0x16)
	SIGURG    = syscall.Signal(0x17)

	SIGCONT   = syscall.Signal(0x12)
	SIGIO     = syscall.Signal(0x1d)
	SIGPOLL   = syscall.Signal(0x1d)
	SIGPROF   = syscall.Signal(0x1b)
	SIGPWR    = syscall.Signal(0x1e)
	SIGSTKFLT = syscall.Signal(0x10)
	SIGSTOP   = syscall.Signal(0x13)
	SIGSYS    = syscall.Signal(0x1f)
	SIGTSTP   = syscall.Signal(0x14)
	SIGTTIN   = syscall.Signal(0x15)
	SIGTTOU   = syscall.Signal(0x16)
	SIGURG    = syscall.Signal(0x17)

	SIGCONT   = syscall.Signal(0x12)
	SIGIO     = syscall.Signal(0x1d)
	SIGPOLL   = syscall.Signal(0x1d)
	SIGPROF   = syscall.Signal(0x1b)
	SIGPWR    = syscall.Signal(0x1e)
	SIGSTKFLT = syscall.Signal(0x10)
	SIGSTOP   = syscall.Signal(0x13)
	SIGSYS    = syscall.Signal(0x1f)
	SIGTSTP   = syscall.Signal(0x14)
	SIGTTIN   = syscall.Signal(0x15)
	SIGTTOU   = syscall.Signal(0x16)
	SIGURG    = syscall.Signal(0x17)

	cmd.SysProcAttr = &syscall.SysProcAttr{
		Unshareflags:               syscall.CLONE_NEWNS | syscall.CLONE_NEWUSER,
		GidMappingsEnableSetgroups: false,
		UidMappings: []syscall.SysProcIDMap{
			{
				ContainerID: 0,
				HostID:      syscall.Getuid(),
				Size:        1,
			},
		},
		GidMappings: []syscall.SysProcIDMap{
			{
				ContainerID: 0,

	if raddr != nil && ctrlCtxFn != nil {
		return nil, os.NewSyscallError("socket", syscall.ENOTSUP)
	}
	switch sotype {
	case syscall.SOCK_STREAM, syscall.SOCK_SEQPACKET, syscall.SOCK_DGRAM:
	default:
		return nil, os.NewSyscallError("socket", syscall.ENOTSUP)
	}

	fd := &netFD{
		family: family,
		sotype: sotype,

	if e1 != e {
		a, e2 := syscall.GetFileAttributes(p)
		if e2 != nil {
			e = e2
		} else {
			if a&syscall.FILE_ATTRIBUTE_DIRECTORY != 0 {
				e = e1
			} else if a&syscall.FILE_ATTRIBUTE_READONLY != 0 {
				if e1 = syscall.SetFileAttributes(p, a&^syscall.FILE_ATTRIBUTE_READONLY); e1 == nil {
					if e = syscall.DeleteFile(p); e == nil {
						return nil
					}
				}
			}

const DevNull = "/dev/null"

// syscallMode returns the syscall-specific mode bits from Go's portable mode bits.
func syscallMode(i FileMode) (o uint32) {
	o |= uint32(i.Perm())
	if i&ModeAppend != 0 {
		o |= syscall.DMAPPEND
	}
	if i&ModeExclusive != 0 {
		o |= syscall.DMEXCL
	}
	if i&ModeTemporary != 0 {
		o |= syscall.DMTMP
	}
	return
}

pkg syscall (windows-386), const DnsSectionAdditional = 3
pkg syscall (windows-386), const DnsSectionAdditional ideal-int
pkg syscall (windows-386), const DnsSectionAnswer = 1
pkg syscall (windows-386), const DnsSectionAnswer ideal-int
pkg syscall (windows-386), const DnsSectionAuthority = 2
pkg syscall (windows-386), const DnsSectionAuthority ideal-int
pkg syscall (windows-386), const DnsSectionQuestion = 0