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vendor: update buildkit to 3e38a2d

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Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
This commit is contained in:
CrazyMax
2022-04-03 20:40:33 +02:00
parent c3db06cda0
commit a49ad031a5
87 changed files with 2964 additions and 4427 deletions
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18
vendor/github.com/klauspost/compress/zstd/blockdec.go generated vendored
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@ -167,6 +167,11 @@ func (b *blockDec) reset(br byteBuffer, windowSize uint64) error {
}
return ErrCompressedSizeTooBig
}
// Empty compressed blocks must at least be 2 bytes
// for Literals_Block_Type and one for Sequences_Section_Header.
if cSize < 2 {
return ErrBlockTooSmall
}
case blockTypeRaw:
if cSize > maxCompressedBlockSize || cSize > int(b.WindowSize) {
if debugDecoder {
@ -491,6 +496,9 @@ func (b *blockDec) decodeCompressed(hist *history) error {
}
func (b *blockDec) prepareSequences(in []byte, hist *history) (err error) {
if debugDecoder {
printf("prepareSequences: %d byte(s) input\n", len(in))
}
// Decode Sequences
// https://github.com/facebook/zstd/blob/dev/doc/zstd_compression_format.md#sequences-section
if len(in) < 1 {
@ -499,8 +507,6 @@ func (b *blockDec) prepareSequences(in []byte, hist *history) (err error) {
var nSeqs int
seqHeader := in[0]
switch {
case seqHeader == 0:
in = in[1:]
case seqHeader < 128:
nSeqs = int(seqHeader)
in = in[1:]
@ -517,6 +523,13 @@ func (b *blockDec) prepareSequences(in []byte, hist *history) (err error) {
nSeqs = 0x7f00 + int(in[1]) + (int(in[2]) << 8)
in = in[3:]
}
if nSeqs == 0 && len(in) != 0 {
// When no sequences, there should not be any more data...
if debugDecoder {
printf("prepareSequences: 0 sequences, but %d byte(s) left on stream\n", len(in))
}
return ErrUnexpectedBlockSize
}
var seqs = &hist.decoders
seqs.nSeqs = nSeqs
@ -635,6 +648,7 @@ func (b *blockDec) decodeSequences(hist *history) error {
hist.decoders.seqSize = len(hist.decoders.literals)
return nil
}
hist.decoders.windowSize = hist.windowSize
hist.decoders.prevOffset = hist.recentOffsets
err := hist.decoders.decode(b.sequence)
hist.recentOffsets = hist.decoders.prevOffset