func (m FileMode) IsRegular() bool {
	return m&ModeType == 0
}

// Perm returns the Unix permission bits in m (m & [ModePerm]).
func (m FileMode) Perm() FileMode {
	return m & ModePerm
}

// Type returns type bits in m (m & [ModeType]).
func (m FileMode) Type() FileMode {
	return m & ModeType
}

// PathError records an error and the operation and file path that caused it.

	ModeSticky     = fs.ModeSticky     // t: sticky
	ModeIrregular  = fs.ModeIrregular  // ?: non-regular file; nothing else is known about this file

	// Mask for the type bits. For regular files, none will be set.
	ModeType = fs.ModeType

	ModePerm = fs.ModePerm // Unix permission bits, 0o777
)

func (fs *fileStat) Name() string { return fs.name }
func (fs *fileStat) IsDir() bool  { return fs.Mode().IsDir() }

					continue
				}
				return err
			}

			// Ignore symlinked directories.
			if typ&os.ModeSymlink == os.ModeSymlink && fi.IsDir() {
				continue
			}

			typ = fi.Mode() & os.ModeType
		}
		if err = fn(string(name), typ); err == errDoneForNow {
			// fn() requested to return by caller.
			return nil
		}
	}

	return err
}

	var result []*config.Config

	err := filepath.Walk(f.root, func(path string, info os.FileInfo, err error) error {
		if err != nil {
			return err
		} else if !supportedExtensions[filepath.Ext(path)] || (info.Mode()&os.ModeType) != 0 {
			return nil
		}
		data, err := os.ReadFile(path)
		if err != nil {
			log.Warnf("Failed to read %s: %v", path, err)
			return err
		}
		configs, err := parseInputs(data, f.domainSuffix)

mount points, which was a source of many inconsistencies and bugs.
At previous versions (`winsymlink=0`), mount points are treated as symlinks,
and other reparse points with non-default [`os.ModeType`](/pkg/os#ModeType) bits
(such as [`os.ModeDir`](/pkg/os#ModeDir)) do not have the `ModeIrregular` bit set.

Go 1.23 changed [`os.Readlink`](/pkg/os#Readlink) and [`filepath.EvalSymlinks`](/pkg/path/filepath#EvalSymlinks)

pkg os, const ModeSetuid FileMode
pkg os, const ModeSocket FileMode
pkg os, const ModeSticky FileMode
pkg os, const ModeSymlink FileMode
pkg os, const ModeTemporary FileMode
pkg os, const ModeType = 2399141888
pkg os, const ModeType = 2399666176
pkg os, const ModeType FileMode
pkg os, func Chmod(string, FileMode) error
pkg os, func Lstat(string) (FileInfo, error)
pkg os, func Mkdir(string, FileMode) error
pkg os, func MkdirAll(string, FileMode) error

		m |= ModeDevice | ModeCharDevice
	}
	if fs.FileAttributes&syscall.FILE_ATTRIBUTE_REPARSE_POINT != 0 {
		if fs.ReparseTag == windows.IO_REPARSE_TAG_AF_UNIX {
			m |= ModeSocket
		}
		if m&ModeType == 0 {
			if fs.ReparseTag == windows.IO_REPARSE_TAG_DEDUP {
				// See comment in fs.Mode.
			} else {
				m |= ModeIrregular
			}
		}
	}
	return m
}

pkg math/bits, func Sub64(uint64, uint64, uint64) (uint64, uint64)
pkg net/http, const StatusTooEarly = 425
pkg net/http, const StatusTooEarly ideal-int
pkg net/http, method (*Client) CloseIdleConnections()
pkg os, const ModeType = 2401763328
pkg os, func UserHomeDir() (string, error)
pkg os, method (*File) SyscallConn() (syscall.RawConn, error)
pkg os, method (*ProcessState) ExitCode() int
pkg os/exec, method (ExitError) ExitCode() int

	}
	if tp := lfi.Mode().Type(); tp != fs.ModeIrregular {
		// A reparse point is not a regular file, but we don't have a more appropriate
		// ModeType bit for it, so it should be marked as irregular.
		t.Errorf("%q should not be a an irregular file (mode=0x%x)", pythonPath, uint32(tp))
	}

	if sfi.Name() != pythonExeName {

pkg net/http/httputil, type ReverseProxy struct, ErrorHandler func(http.ResponseWriter, *http.Request, error)
pkg os, const ModeIrregular = 524288
pkg os, const ModeIrregular FileMode
pkg os, const ModeType = 2399666176
pkg os, func UserCacheDir() (string, error)
pkg os/signal, func Ignored(os.Signal) bool
pkg regexp/syntax, method (Op) String() string
pkg runtime/trace, func IsEnabled() bool