added initial debug statements

src/link.c

@@ -861,5 +861,6 @@ range requests\n");
     curl_easy_cleanup(curl);
     FREE(buf.data);
 
+    lprintf(debug, "recv: %lu bytes\n", recv);
     return recv;
 }

src/network.c

@@ -370,7 +370,7 @@ write_memory_callback(void *contents, size_t size, size_t nmemb,
     memmove(&mem->data[mem->size], contents, realsize);
     mem->size += realsize;
     mem->data[mem->size] = 0;
-
+    lprintf(debug, "realsize %d bytes\n", realsize);
     return realsize;
 }