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rpcserver: add nil check to policy ordering

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Fixes #5301.
This was introduced with #5295. Since either policies can be nil, we
need to always check that first.
This commit is contained in:
Oliver Gugger 2021-05-17 09:36:05 +02:00
parent cfa7188b1d
commit 3a5a03fa49
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1 changed files with 2 additions and 7 deletions
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9
rpcserver.go
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@ -5166,13 +5166,8 @@ func marshalDbEdge(edgeInfo *channeldb.ChannelEdgeInfo,
// Make sure the policies match the node they belong to. c1 should point // Make sure the policies match the node they belong to. c1 should point
// to the policy for NodeKey1, and c2 for NodeKey2. // to the policy for NodeKey1, and c2 for NodeKey2.
if c1.ChannelFlags&lnwire.ChanUpdateDirection == 1 { if c1 != nil && c1.ChannelFlags&lnwire.ChanUpdateDirection == 1 ||
c2, c1 = c1, c2 c2 != nil && c2.ChannelFlags&lnwire.ChanUpdateDirection == 0 {
}
// Order the edges by increasing pubkey.
if bytes.Compare(edgeInfo.NodeKey2Bytes[:],
edgeInfo.NodeKey1Bytes[:]) < 0 {
c2, c1 = c1, c2 c2, c1 = c1, c2
} }