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-rw-r--r--src/rpcblockchain.cpp10
1 files changed, 6 insertions, 4 deletions
diff --git a/src/rpcblockchain.cpp b/src/rpcblockchain.cpp
index 58cab14045..8a4b25cc54 100644
--- a/src/rpcblockchain.cpp
+++ b/src/rpcblockchain.cpp
@@ -54,9 +54,11 @@ Object blockToJSON(const CBlock& block, const CBlockIndex* blockindex)
{
Object result;
result.push_back(Pair("hash", block.GetHash().GetHex()));
- CMerkleTx txGen(block.vtx[0]);
- txGen.SetMerkleBranch(&block);
- result.push_back(Pair("confirmations", (int)txGen.GetDepthInMainChain()));
+ int confirmations = -1;
+ // Only report confirmations if the block is on the main chain
+ if (chainActive.Contains(blockindex))
+ confirmations = chainActive.Height() - blockindex->nHeight + 1;
+ result.push_back(Pair("confirmations", confirmations));
result.push_back(Pair("size", (int)::GetSerializeSize(block, SER_NETWORK, PROTOCOL_VERSION)));
result.push_back(Pair("height", blockindex->nHeight));
result.push_back(Pair("version", block.nVersion));
@@ -242,7 +244,7 @@ Value getblock(const Array& params, bool fHelp)
"\nResult (for verbose = true):\n"
"{\n"
" \"hash\" : \"hash\", (string) the block hash (same as provided)\n"
- " \"confirmations\" : n, (numeric) The number of confirmations\n"
+ " \"confirmations\" : n, (numeric) The number of confirmations, or -1 if the block is not on the main chain\n"
" \"size\" : n, (numeric) The block size\n"
" \"height\" : n, (numeric) The block height or index\n"
" \"version\" : n, (numeric) The block version\n"