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local: fix crash on Stat error while reading a file

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This commit is contained in:
Nick Craig-Wood 2018-03-01 13:17:40 +00:00
parent f3e982d3bf
commit 7d4da1c66a
1 changed files with 3 additions and 0 deletions
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3
backend/local/local.go
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@ -671,6 +671,9 @@ type localOpenFile struct {
func (file *localOpenFile) Read(p []byte) (n int, err error) {
// Check if file has the same size and modTime
fi, err := file.fd.Stat()
if err != nil {
return 0, errors.Wrap(err, "can't read status of source file while transferring")
}
if file.o.size != fi.Size() || file.o.modTime != fi.ModTime() {
return 0, errors.New("can't copy - source file is being updated")
}