Add friend now fails if it already is in DHT.

1 files changed, 2 insertions, 0 deletions

diff --git a/core/DHT.c b/core/DHT.c
index d359076d..5eae147c 100644
--- a/core/DHT.c
+++ b/core/DHT.c
@@ -633,6 +633,8 @@ static int handle_sendnodes(IP_Port source, uint8_t * packet, uint32_t length)
 
 int DHT_addfriend(uint8_t * client_id)
 {
+    if(friend_number(client_id) != -1) /*Is friend already in DHT?*/
+        return 1;
     Friend * temp;
     temp = realloc(friends_list, sizeof(Friend) * (num_friends + 1));
     if (temp == NULL)