Fix io.Reader implementations and wrap more errors

[rbdr/mobius] / hotline / file_wrapper.go

diff --git a/hotline/file_wrapper.go b/hotline/file_wrapper.go
index a26c45a4a53494d3ee2cde758b62a20c915334ef..342355bc50db7ddfad8d934202c6fb3cba628997 100644 (file)
--- a/hotline/file_wrapper.go
+++ b/hotline/file_wrapper.go
@@ -114,7 +114,7 @@ func (f *fileWrapper) rsrcForkWriter() (io.WriteCloser, error) {
 }
 
 func (f *fileWrapper) infoForkWriter() (io.WriteCloser, error) {
-       file, err := os.OpenFile(f.infoPath, os.O_CREATE|os.O_WRONLY, 0644)
+       file, err := os.OpenFile(f.infoPath, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
        if err != nil {
                return nil, err
        }
@@ -246,7 +246,7 @@ func (f *fileWrapper) flattenedFileObject() (*flattenedFileObject, error) {
 
                _, err = io.Copy(&f.ffo.FlatFileInformationFork, bytes.NewReader(b))
                if err != nil {
-                       return nil, err
+                       return nil, fmt.Errorf("error copying FlatFileInformationFork: %w", err)
                }
 
        } else {