Some more auxiliary functions.

src/libutil/upstream.c

@@ -274,6 +274,12 @@ rspamd_upstreams_create (void)
 	return ls;
 }
 
+gsize
+rspamd_upstreams_count (struct upstream_list *ups)
+{
+	return ups->ups->len;
+}
+
 static void
 rspamd_upstream_dtor (struct upstream *up)
 {
@@ -356,6 +362,29 @@ rspamd_upstreams_parse_line (struct upstream_list *ups,
 	return ret;
 }
 
+gboolean
+rspamd_upstreams_from_ucl (struct upstream_list *ups,
+		const ucl_object_t *in, guint16 def_port, void *data)
+{
+	gboolean ret = FALSE;
+	const ucl_object_t *cur;
+	ucl_object_iter_t it = NULL;
+
+	if (ucl_object_type (in) == UCL_ARRAY) {
+		while ((cur = ucl_iterate_object (in, &it, true)) != NULL) {
+			if (rspamd_upstreams_from_ucl (ups, cur, def_port, data)) {
+				ret = TRUE;
+			}
+		}
+	}
+	else if (ucl_object_type (in) == UCL_STRING) {
+		ret = rspamd_upstreams_parse_line (ups, ucl_object_tostring (in),
+				def_port, data);
+	}
+
+	return ret;
+}
+
 void
 rspamd_upstreams_destroy (struct upstream_list *ups)
 {

src/libutil/upstream.h

@@ -4,6 +4,7 @@
 #include "config.h"
 #include "util.h"
 #include "rdns.h"
+#include "ucl.h"
 
 enum rspamd_upstream_rotation {
 	RSPAMD_UPSTREAM_RANDOM,
@@ -52,6 +53,13 @@ struct upstream_list* rspamd_upstreams_create (void);
  */
 void rspamd_upstreams_destroy (struct upstream_list *ups);
 
+/**
+ * Returns count of upstreams in a list
+ * @param ups
+ * @return
+ */
+gsize rspamd_upstreams_count (struct upstream_list *ups);
+
 /**
  * Add upstream from the string
  * @param ups upstream list
@@ -74,6 +82,18 @@ gboolean rspamd_upstreams_add_upstream (struct upstream_list *ups,
 gboolean rspamd_upstreams_parse_line (struct upstream_list *ups,
 		const gchar *str, guint16 def_port, void *data);
 
+
+/**
+ * Parse upstreams list from the UCL object
+ * @param ups
+ * @param in
+ * @param def_port
+ * @param data
+ * @return
+ */
+gboolean rspamd_upstreams_from_ucl (struct upstream_list *ups,
+		const ucl_object_t *in, guint16 def_port, void *data);
+
 /**
  * Returns the current IP address of the upstream
  * @param up