peer->id = id;
snprintf(peer->mailbox,MAILBOX_SIZE-1, "%d", id);
snprintf(peer->mailbox_tracker,MAILBOX_SIZE-1, "tracker_%d", id);
peer->id = id;
snprintf(peer->mailbox,MAILBOX_SIZE-1, "%d", id);
snprintf(peer->mailbox_tracker,MAILBOX_SIZE-1, "tracker_%d", id);