fixed with version sync;

lib/link.c

@@ -147,7 +147,10 @@ static int __get_channels_list(void *cctx, sexp_t *sx)
     co->rpc_list = ssys->get_rpc_typed_list_tree(co);
   if(!co->rpc_list) return SXE_EPERM;
   //buf += sizeof(sxmplv2_head_t);
-  ulen += snprintf(buf + ulen, maxlen - ulen, "(set-channels-list ");
+  if(co->cp_version == V2)
+    ulen += snprintf(buf + ulen, maxlen - ulen, "(set-channels-list ");
+  else ulen += snprintf(buf + ulen, maxlen - ulen, "(!@c< ");
+
   for(node = usrtc_first(co->rpc_list); node != NULL;
       node = usrtc_next(co->rpc_list, node)) { /* fill the list */
     list_ent = (rpc_typed_list_t *)usrtc_node_getdata(node);
@@ -466,6 +469,8 @@ static int __init_systemrpc_tree(usrtc_t *rtree)
 {
   /* batch mode negotiation context functions */
   if(__insert_rpc_function(rtree, "auth-set-credentials", __set_credentials)) goto __fail;
+
+  /* old version V2 */
   if(__insert_rpc_function(rtree, "get-channels-list", __get_channels_list)) goto __fail; /* old V2 (v1 also) */
   if(__insert_rpc_function(rtree, "set-channels-list", __set_channels_list)) goto __fail;