+
+memcached_return pre_binary(memcached_st *memc)
+{
+ memcached_return rc= MEMCACHED_FAILURE;
+ memcached_st *clone;
+
+ clone= memcached_clone(NULL, memc);
+ assert(clone);
+ // The memcached_version needs to be done on a clone, because the server
+ // will not toggle protocol on an connection.
+ memcached_version(clone);
+
+ if (clone->hosts[0].major_version >= 1 && clone->hosts[0].minor_version > 2)
+ {
+ rc = memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL, 1);
+ assert(rc == MEMCACHED_SUCCESS);
+ assert(memcached_behavior_get(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL) == 1);
+ }
+
+ memcached_free(clone);
+ return rc;
+}
+