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tar/asm: check length before adding an entry

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This commit is contained in:
Vincent Batts 2015-08-11 15:51:19 -04:00
parent 51b0481d4a
commit df8572a1eb
1 changed files with 18 additions and 13 deletions
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31
tar/asm/disassemble.go
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@ -55,13 +55,15 @@ func NewInputTarStream(r io.Reader, p storage.Packer, fp storage.FilePutter) (io
}
// even when an EOF is reached, there is often 1024 null bytes on
// the end of an archive. Collect them too.
_, err := p.AddEntry(storage.Entry{
Type: storage.SegmentType,
Payload: tr.RawBytes(),
})
if err != nil {
pW.CloseWithError(err)
return
if b := tr.RawBytes(); len(b) > 0 {
_, err := p.AddEntry(storage.Entry{
Type: storage.SegmentType,
Payload: b,
})
if err != nil {
pW.CloseWithError(err)
return
}
}
break // not return. We need the end of the reader.
}
@ -69,12 +71,15 @@ func NewInputTarStream(r io.Reader, p storage.Packer, fp storage.FilePutter) (io
break // not return. We need the end of the reader.
}
if _, err := p.AddEntry(storage.Entry{
Type: storage.SegmentType,
Payload: tr.RawBytes(),
}); err != nil {
pW.CloseWithError(err)
return
if b := tr.RawBytes(); len(b) > 0 {
_, err := p.AddEntry(storage.Entry{
Type: storage.SegmentType,
Payload: b,
})
if err != nil {
pW.CloseWithError(err)
return
}
}
var csum []byte