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lnwire/query_short_chan_ids: short circuit if 0 sids

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In this commit, we alter the behavior of the regular
short channel id encoding, such that it returns a nil
slice if the decoded number of elements is 0. This is
done so that it matches the behavior of the zlib
decompression, allowing us to test both in using the
same corpus.
This commit is contained in:
Conner Fromknecht 2018-06-28 19:04:55 -07:00
parent 8cc217b526
commit 61c2493b7d
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GPG Key ID: 39DE78FBE6ACB0EF
1 changed files with 4 additions and 1 deletions
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5
lnwire/query_short_chan_ids.go
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@ -146,10 +146,13 @@ func decodeShortChanIDs(r io.Reader) (ShortChanIDEncoding, []ShortChannelID, err
// compute the number of bytes encoded based on the size of the
// query body.
numShortChanIDs := len(queryBody) / 8
shortChanIDs := make([]ShortChannelID, numShortChanIDs)
if numShortChanIDs == 0 {
return encodingType, nil, nil
}
// Finally, we'll read out the exact number of short channel
// ID's to conclude our parsing.
shortChanIDs := make([]ShortChannelID, numShortChanIDs)
bodyReader := bytes.NewReader(queryBody)
for i := 0; i < numShortChanIDs; i++ {
if err := readElements(bodyReader, &shortChanIDs[i]); err != nil {