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-rw-r--r--src/main.cpp9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/main.cpp b/src/main.cpp
index 302292ee29..9b43825433 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1360,9 +1360,12 @@ bool CBlock::ConnectBlock(CTxDB& txdb, CBlockIndex* pindex, bool fJustCheck)
// See BIP30 and http://r6.ca/blog/20120206T005236Z.html for more information.
// This logic is not necessary for memory pool transactions, as AcceptToMemoryPool
// already refuses previously-known transaction ids entirely.
- // This rule applies to all blocks whose timestamp is after March 15, 2012, 0:00 UTC.
- int64 nBIP30SwitchTime = 1331769600;
- bool fEnforceBIP30 = (pindex->nTime > nBIP30SwitchTime);
+ // This rule was originally applied all blocks whose timestamp was after March 15, 2012, 0:00 UTC.
+ // Now that the whole chain is irreversibly beyond that time it is applied to all blocks except the
+ // two in the chain that violate it. This prevents exploiting the issue against nodes in their
+ // initial block download.
+ bool fEnforceBIP30 = !((pindex->nHeight==91842 && pindex->GetBlockHash() == uint256("0x00000000000a4d0a398161ffc163c503763b1f4360639393e0e4c8e300e0caec")) ||
+ (pindex->nHeight==91880 && pindex->GetBlockHash() == uint256("0x00000000000743f190a18c5577a3c2d2a1f610ae9601ac046a38084ccb7cd721")));
// BIP16 didn't become active until Apr 1 2012
int64 nBIP16SwitchTime = 1333238400;