X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning-block-sync%2Fsrc%2Fpoll.rs;h=e7171cf3656138036d50385691c96e419db29bcd;hb=b6f3d0a5fa6cf6036d317d3ff47e5252be47bc40;hp=05ccd4504fde0d81a76646d91b44d9b2b1653711;hpb=c06ab02900d454d48f75a54c8ab5c80785acbf8e;p=rust-lightning

diff --git a/lightning-block-sync/src/poll.rs b/lightning-block-sync/src/poll.rs
index 05ccd450..e7171cf3 100644
--- a/lightning-block-sync/src/poll.rs
+++ b/lightning-block-sync/src/poll.rs
@@ -61,7 +61,7 @@ impl Validate for BlockHeaderData {
 	fn validate(self, block_hash: BlockHash) -> BlockSourceResult<Self::T> {
 		let pow_valid_block_hash = self.header
 			.validate_pow(&self.header.target())
-			.or_else(|e| Err(BlockSourceError::persistent(e)))?;
+			.map_err(BlockSourceError::persistent)?;
 
 		if pow_valid_block_hash != block_hash {
 			return Err(BlockSourceError::persistent("invalid block hash"));
@@ -82,7 +82,7 @@ impl Validate for BlockData {
 
 		let pow_valid_block_hash = header
 			.validate_pow(&header.target())
-			.or_else(|e| Err(BlockSourceError::persistent(e)))?;
+			.map_err(BlockSourceError::persistent)?;
 
 		if pow_valid_block_hash != block_hash {
 			return Err(BlockSourceError::persistent("invalid block hash"));
@@ -136,8 +136,11 @@ impl ValidatedBlockHeader {
 
 		if let Network::Bitcoin = network {
 			if self.height % 2016 == 0 {
-				let previous_work = previous_header.header.work();
-				if work > (previous_work << 2) || work < (previous_work >> 2) {
+				let target = self.header.target();
+				let previous_target = previous_header.header.target();
+				let min_target = previous_target >> 2;
+				let max_target = previous_target << 2;
+				if target > max_target || target < min_target {
 					return Err(BlockSourceError::persistent("invalid difficulty transition"))
 				}
 			} else if self.header.bits != previous_header.header.bits {