Fix overflow of sum2 buffer for sha1 rolling checksums.

Fixed #353.

1 files changed, 1 insertions, 1 deletions

diff --git a/match.c b/match.c
index 6243994c..192b154a 100644
--- a/match.c
+++ b/match.c
@@ -142,7 +142,7 @@ static void hash_search(int f,struct sum_struct *s,
 {
 	OFF_T offset, aligned_offset, end;
 	int32 k, want_i, aligned_i, backup;
-	char sum2[SUM_LENGTH];
+	char sum2[MAX_DIGEST_LEN];
 	uint32 s1, s2, sum;
 	int more;
 	schar *map;