Fix bitfield message length calculation

Inspired by a fix by Pavel Sher. Signed-off-by: Maxime Petazzoni <[email protected]>
mpetazzoni · Nov 1, 2012 · d0f68d5 · d0f68d5
1 parent 69ba1b6
commit d0f68d5
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/main/java/com/turn/ttorrent/common/protocol/PeerMessage.java b/src/main/java/com/turn/ttorrent/common/protocol/PeerMessage.java
@@ -409,7 +409,8 @@ public static BitfieldMessage parse(ByteBuffer buffer,
 		}
 
 		public static BitfieldMessage craft(BitSet availablePieces) {
-			byte[] bitfield = new byte[availablePieces.length()/8 + 1];
+			byte[] bitfield = new byte[
+				(int) Math.ceil((double)availablePieces.length()/8)];
 			for (int i=availablePieces.nextSetBit(0); i >= 0;
 					i=availablePieces.nextSetBit(i+1)) {
 				bitfield[i/8] |= 1 << (7 -(i % 8));