mirror of
https://github.com/containers/skopeo.git
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Update c/image after https://github.com/containers/image/pull/1810
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
This commit is contained in:
54
vendor/github.com/klauspost/compress/zstd/decoder.go
generated
vendored
54
vendor/github.com/klauspost/compress/zstd/decoder.go
generated
vendored
@@ -40,8 +40,7 @@ type Decoder struct {
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frame *frameDec
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// Custom dictionaries.
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// Always uses copies.
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dicts map[uint32]dict
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dicts map[uint32]*dict
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// streamWg is the waitgroup for all streams
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streamWg sync.WaitGroup
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@@ -103,7 +102,7 @@ func NewReader(r io.Reader, opts ...DOption) (*Decoder, error) {
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}
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// Transfer option dicts.
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d.dicts = make(map[uint32]dict, len(d.o.dicts))
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d.dicts = make(map[uint32]*dict, len(d.o.dicts))
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for _, dc := range d.o.dicts {
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d.dicts[dc.id] = dc
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}
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@@ -341,15 +340,8 @@ func (d *Decoder) DecodeAll(input, dst []byte) ([]byte, error) {
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}
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return dst, err
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}
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if frame.DictionaryID != nil {
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dict, ok := d.dicts[*frame.DictionaryID]
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if !ok {
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return nil, ErrUnknownDictionary
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}
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if debugDecoder {
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println("setting dict", frame.DictionaryID)
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}
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frame.history.setDict(&dict)
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if err = d.setDict(frame); err != nil {
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return nil, err
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}
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if frame.WindowSize > d.o.maxWindowSize {
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if debugDecoder {
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@@ -495,18 +487,12 @@ func (d *Decoder) nextBlockSync() (ok bool) {
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if !d.syncStream.inFrame {
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d.frame.history.reset()
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d.current.err = d.frame.reset(&d.syncStream.br)
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if d.current.err == nil {
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d.current.err = d.setDict(d.frame)
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}
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if d.current.err != nil {
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return false
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}
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if d.frame.DictionaryID != nil {
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dict, ok := d.dicts[*d.frame.DictionaryID]
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if !ok {
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d.current.err = ErrUnknownDictionary
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return false
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} else {
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d.frame.history.setDict(&dict)
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}
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}
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if d.frame.WindowSize > d.o.maxDecodedSize || d.frame.WindowSize > d.o.maxWindowSize {
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d.current.err = ErrDecoderSizeExceeded
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return false
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@@ -865,13 +851,8 @@ decodeStream:
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if debugDecoder && err != nil {
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println("Frame decoder returned", err)
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}
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if err == nil && frame.DictionaryID != nil {
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dict, ok := d.dicts[*frame.DictionaryID]
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if !ok {
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err = ErrUnknownDictionary
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} else {
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frame.history.setDict(&dict)
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}
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if err == nil {
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err = d.setDict(frame)
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}
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if err == nil && d.frame.WindowSize > d.o.maxWindowSize {
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if debugDecoder {
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@@ -953,3 +934,20 @@ decodeStream:
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hist.reset()
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d.frame.history.b = frameHistCache
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}
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func (d *Decoder) setDict(frame *frameDec) (err error) {
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dict, ok := d.dicts[frame.DictionaryID]
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if ok {
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if debugDecoder {
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println("setting dict", frame.DictionaryID)
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}
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frame.history.setDict(dict)
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} else if frame.DictionaryID != 0 {
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// A zero or missing dictionary id is ambiguous:
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// either dictionary zero, or no dictionary. In particular,
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// zstd --patch-from uses this id for the source file,
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// so only return an error if the dictionary id is not zero.
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err = ErrUnknownDictionary
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}
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return err
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}
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