Merge pull request #224 from Logan007/snLstCmmnts

added list of currently managed communities to supernode's management port output

sn.c

@@ -350,6 +350,16 @@ static int process_mgmt(n2n_sn_t * sss,
 		      "last reg  %lu sec ago\n",
 		      (long unsigned int) (now - sss->stats.last_reg_super));
 
+  ressize += snprintf(resbuf+ressize, N2N_SN_PKTBUF_SIZE-ressize,
+                      "cur_cmnts");
+  HASH_ITER(hh, sss->communities, community, tmp) {
+    ressize += snprintf(resbuf+ressize, N2N_SN_PKTBUF_SIZE-ressize,
+                        " [%s]",
+                        community->community);
+  }
+  ressize += snprintf(resbuf+ressize, N2N_SN_PKTBUF_SIZE-ressize,
+                      "\n");
+
 
   r = sendto(sss->mgmt_sock, resbuf, ressize, 0/*flags*/,
 	     (struct sockaddr *)sender_sock, sizeof(struct sockaddr_in));