Fixed one possible bug in the DHT and added a basic TODO list.

Fixed a possible segfault which could have been cause by handling an
empty packet.

1 files changed, 3 insertions, 1 deletions

diff --git a/core/DHT.c b/core/DHT.c
index 547520d2..ef04a391 100644
--- a/core/DHT.c
+++ b/core/DHT.c
@@ -15,14 +15,16 @@ int sendpacket(IP_Port ip_port, char * data, uint32_t length)
 //Function to recieve data, ip and port of sender is put into ip_port
 //the packet data into data
 //the packet length into length.
+//dump all empty packets.
 int recievepacket(IP_Port * ip_port, char * data, uint32_t * length)
 {
     ADDR addr;
     uint32_t addrlen = sizeof(addr);
     (*(int *)length) = recvfrom(sock, data, MAX_UDP_PACKET_SIZE, 0, (struct sockaddr *)&addr, &addrlen);
-    if(*(int *)length == -1)
+    if(*(int *)length <= 0)
     {
         //nothing recieved
+        //or empty packet
         return -1;
     }
     ip_port->ip = addr.ip;