fix bug if headers file is empty

2017-07-19 17:23:46 +02:00
parent 97343d95e5
commit feb0f483f5
2 changed files with 14 additions and 4 deletions
--- a/lib/blockchain.py
+++ b/lib/blockchain.py
@@ -286,6 +286,8 @@ class Blockchain(util.PrintError):
        height = header['block_height']
        if self.height() != height - 1:
            return False
+        if height == 0:
+            return hash_header(header) == bitcoin.GENESIS
        previous_header = self.read_header(height -1)
        if not previous_header:
            return False