Function stringifyMountFlags

libcontainer/mount_linux.go:56–105

stringifyMountFlags converts mount(2) flags to a string that you can use in error messages.

(flags Int)

// stringifyMountFlags converts mount(2) flags to a string that you can use in
// error messages.
func stringifyMountFlags[Int int32plus](flags Int) string {
	flagNames := []struct {
		name string
		bits Int
	}{
		{"MS_RDONLY", unix.MS_RDONLY},
		{"MS_NOSUID", unix.MS_NOSUID},
		{"MS_NODEV", unix.MS_NODEV},
		{"MS_NOEXEC", unix.MS_NOEXEC},
		{"MS_SYNCHRONOUS", unix.MS_SYNCHRONOUS},
		{"MS_REMOUNT", unix.MS_REMOUNT},
		{"MS_MANDLOCK", unix.MS_MANDLOCK},
		{"MS_DIRSYNC", unix.MS_DIRSYNC},
		{"MS_NOSYMFOLLOW", unix.MS_NOSYMFOLLOW},
		// No (1 << 9) flag.
		{"MS_NOATIME", unix.MS_NOATIME},
		{"MS_NODIRATIME", unix.MS_NODIRATIME},
		{"MS_BIND", unix.MS_BIND},
		{"MS_MOVE", unix.MS_MOVE},
		{"MS_REC", unix.MS_REC},
		// MS_VERBOSE was deprecated and swapped to MS_SILENT.
		{"MS_SILENT", unix.MS_SILENT},
		{"MS_POSIXACL", unix.MS_POSIXACL},
		{"MS_UNBINDABLE", unix.MS_UNBINDABLE},
		{"MS_PRIVATE", unix.MS_PRIVATE},
		{"MS_SLAVE", unix.MS_SLAVE},
		{"MS_SHARED", unix.MS_SHARED},
		{"MS_RELATIME", unix.MS_RELATIME},
		// MS_KERNMOUNT (1 << 22) is internal to the kernel.
		{"MS_I_VERSION", unix.MS_I_VERSION},
		{"MS_STRICTATIME", unix.MS_STRICTATIME},
		{"MS_LAZYTIME", unix.MS_LAZYTIME},
	}
	var (
		flagSet  []string
		seenBits Int
	)
	for _, flag := range flagNames {
		if flags&flag.bits == flag.bits {
			seenBits |= flag.bits
			flagSet = append(flagSet, flag.name)
		}
	}
	// If there were any remaining flags specified we don't know the name of,
	// just add them in an 0x... format.
	if remaining := flags &^ seenBits; remaining != 0 {
		flagSet = append(flagSet, "0x"+strconv.FormatUint(uint64(remaining), 16))
	}
	return strings.Join(flagSet, "|")
}

// Error provides a string error representation.
func (e *mountError) Error() string {