file/files: fixing a bug in Get File where we'd try and unmarshal t…

…he file

storage/2023-11-03/file/files/range_get.go

@@ -3,6 +3,8 @@ package files
 import (
 	"context"
 	"fmt"
+	"github.com/hashicorp/go-azure-helpers/lang/pointer"
+	"io"
 	"net/http"
 	"strings"
 
@@ -83,13 +85,19 @@ func (c Client) GetByteRange(ctx context.Context, shareName, path, fileName stri
 	var resp *client.Response
 	resp, err = req.Execute(ctx)
 	if resp != nil && resp.Response != nil {
-		result.Contents = &[]byte{}
 		result.HttpResponse = resp.Response
 
-		err = resp.Unmarshal(result.Contents)
-		if err != nil {
-			err = fmt.Errorf("unmarshalling response: %+v", err)
-			return
+		result.Contents = &[]byte{}
+		if resp.Body != nil {
+			respBody, err := io.ReadAll(resp.Body)
+			defer resp.Body.Close()
+			if err != nil {
+				return result, fmt.Errorf("could not parse response body")
+			}
+
+			if respBody != nil {
+				result.Contents = pointer.To(respBody)
+			}
 		}
 	}
 	if err != nil {

storage/2023-11-03/file/files/range_get_file.go

@@ -93,6 +93,9 @@ func (c Client) GetFile(ctx context.Context, shareName, path, fileName string, i
 		copy(output[v.startBytes:v.endBytes], *v.bytes)
 	}
 
+	if result.OutputBytes == nil {
+		result.OutputBytes = &[]byte{}
+	}
 	*result.OutputBytes = output
 	return
 }