"errors"
	"fmt"
	"io"
	"strings"

	"github.com/minio/madmin-go/v3"
	xhttp "github.com/minio/minio/internal/http"
)

// WarmBackendGetOpts is used to express byte ranges within an object. The zero
// value represents the entire byte range of an object.
type WarmBackendGetOpts struct {
	startOffset int64
	length      int64
}

// WarmBackend provides interface to be implemented by remote tier backends

		}},
		{ObjectRemovedAll, []Name{ObjectRemovedDelete, ObjectRemovedDeleteMarkerCreated, ObjectRemovedNoOP, ObjectRemovedDeleteAllVersions}},
		{ObjectAccessedHead, []Name{ObjectAccessedHead}},
	}

	for i, testCase := range testCases {
		result := testCase.name.Expand()

		if !reflect.DeepEqual(result, testCase.expectedResult) {
			t.Errorf("test %v: result: expected: %v, got: %v", i+1, testCase.expectedResult, result)
		}
	}
}

Default port '8021' can be changed via

```
--ftp="address=:3021"
```

### Change FTP passive port range

By default FTP requests OS to give a free port automatically, however you may want to restrict
this to specific ports in certain restricted environments via

```
--ftp="passive-port-range=30000-40000"
```

### Change default SFTP port

Default port '8022' can be changed via

```

	// Add a sequence number and formatting for each stack trace
	// No formatting is required for the first entry
	for i, element := range entry.Trace.Source {
		trace[i] = fmt.Sprintf("%8v: %s", traceLength-i, element)
	}

	tagString := ""
	for key, value := range entry.Trace.Variables {
		if value != "" {
			if tagString != "" {
				tagString += ", "
			}
			tagString += fmt.Sprintf("%s=%#v", key, value)
		}

		{
			req: &http.Request{
				Header: http.Header{
					"Authorization": []string{"invalid-token"},
				},
			},
			expectedErr: errAuthentication,
		},
	}

	for i, testCase := range testCases {
		_, _, _, gotErr := metricsRequestAuthenticate(testCase.req)
		if testCase.expectedErr != gotErr {
			t.Errorf("Test %d, expected err %s, got %s", i+1, testCase.expectedErr, gotErr)
		}
	}
}