}

func Chown(path string, uid int, gid int) (err error) {
	return Fchownat(_AT_FDCWD, path, uid, gid, 0)
}

func Creat(path string, mode uint32) (fd int, err error) {
	return Open(path, O_CREAT|O_WRONLY|O_TRUNC, mode)
}

func EpollCreate(size int) (fd int, err error) {
	if size <= 0 {
		return -1, EINVAL
	}
	return EpollCreate1(0)
}

func isGroupMember(gid int) bool {

			// Otherwise, copy the bytes.
			src, err := os.Open(testExe)
			if err != nil {
				log.Fatal(err)
			}
			defer src.Close()

			dst, err := os.OpenFile(testGo, os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0o777)
			if err != nil {
				log.Fatal(err)
			}

			_, err = io.Copy(dst, src)
			if closeErr := dst.Close(); err == nil {
				err = closeErr
			}
			if err != nil {

		if err := test.validate(connState); err != nil {
			t.Fatalf("validate callback returned error: %s", err)
		}
	}

	if write {
		path := test.dataPath()
		out, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
		if err != nil {
			t.Fatalf("Failed to create output file: %s", err)
		}
		defer out.Close()
		recordingConn.Close()
		if len(recordingConn.flows) < 3 {

// NTStatus corresponds with NTSTATUS, error values returned by ntdll.dll and
// other native functions.
type NTStatus uint32

const (
	// Invented values to support what package os expects.
	O_RDONLY   = 0x00000
	O_WRONLY   = 0x00001
	O_RDWR     = 0x00002
	O_CREAT    = 0x00040
	O_EXCL     = 0x00080
	O_NOCTTY   = 0x00100
	O_TRUNC    = 0x00200
	O_NONBLOCK = 0x00800
	O_APPEND   = 0x00400
	O_SYNC     = 0x01000

//
// If w is nil, writerDescriptor returns a File that writes to os.DevNull.
func (c *Cmd) writerDescriptor(w io.Writer) (*os.File, error) {
	if w == nil {
		f, err := os.OpenFile(os.DevNull, os.O_WRONLY, 0)
		if err != nil {
			return nil, err
		}
		c.childIOFiles = append(c.childIOFiles, f)
		return f, nil
	}

	if f, ok := w.(*os.File); ok {
		return f, nil
	}

	OVERLAYFS_SUPER_MAGIC                       = 0x794c7630
	O_ACCMODE                                   = 0x3
	O_RDONLY                                    = 0x0
	O_RDWR                                      = 0x2
	O_WRONLY                                    = 0x1
	PACKET_ADD_MEMBERSHIP                       = 0x1
	PACKET_AUXDATA                              = 0x8
	PACKET_BROADCAST                            = 0x1

		t.Fatal(err)
	}

	// 4) Streaming bitrot check on corrupted file
	filePath := pathJoin(storage.String(), volName, fileName)
	f, err := os.OpenFile(filePath, os.O_WRONLY|os.O_SYNC, 0o644)
	if err != nil {
		t.Fatal(err)
	}
	// Replace first 256 with 'a'.
	if _, err := f.WriteString(strings.Repeat("a", 256)); err != nil {
		t.Fatal(err)
	}
	f.Close()

			return nil
		}

		// Otherwise, copy the bytes.
		src, err := os.Open(srcPath)
		if err != nil {
			return err
		}
		defer src.Close()

		dst, err := os.OpenFile(dstPath, os.O_WRONLY|os.O_CREATE|os.O_EXCL, perm)
		if err != nil {
			return err
		}

		_, err = io.Copy(dst, src)
		if closeErr := dst.Close(); err == nil {
			err = closeErr
		}
		return err
	})
}

			extractedFilePath := filepath.Join(targetDir, file.Name)
			if file.FileInfo().IsDir() {
				return os.MkdirAll(extractedFilePath, file.Mode())
			}
			outputFile, err := os.OpenFile(extractedFilePath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, file.Mode())
			if err != nil {
				return err
			}
			defer outputFile.Close()
			_, err = io.Copy(outputFile, zippedFile)
			return err
		}()
		if err != nil {

		resolverConfig: &resolvConf,
	}
	conf.initOnce.Do(conf.init)
	return conf, nil
}

func (conf *resolvConfTest) write(lines []string) error {
	f, err := os.OpenFile(conf.path, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0600)
	if err != nil {
		return err
	}
	if _, err := f.WriteString(strings.Join(lines, "\n")); err != nil {
		f.Close()
		return err
	}
	f.Close()
	return nil
}