sanity check read_header

This commit is contained in:
ThomasV 2017-08-01 11:00:12 +02:00
parent 4c2deb6d2b
commit 882e259a78
1 changed files with 2 additions and 0 deletions

View File

@ -242,6 +242,8 @@ class Blockchain(util.PrintError):
def read_header(self, height):
assert self.parent_id != self.checkpoint
if height < 0:
return
if height < self.checkpoint:
return self.parent().read_header(height)
if height > self.height():