sasl_callback_t *cb= libmemcached_calloc(ptr, 4, sizeof(sasl_callback_t));
char *name= libmemcached_malloc(ptr, strlen(username) + 1);
sasl_callback_t *cb= libmemcached_calloc(ptr, 4, sizeof(sasl_callback_t));
char *name= libmemcached_malloc(ptr, strlen(username) + 1);