diff --git a/scripts/fetch.c b/scripts/fetch.c
index 57abce4ca..ad50d0cd6 100644
--- a/scripts/fetch.c
+++ b/scripts/fetch.c
@@ -19,6 +19,18 @@
 #include <library.h>
 #include <debug.h>
 
+static int count = 0;
+
+static bool cb(void *userdata, chunk_t chunk)
+{
+	if (write(1, chunk.ptr, chunk.len) == chunk.len)
+	{
+		count++;
+		return TRUE;
+	}
+	return FALSE;
+}
+
 int main(int argc, char *argv[])
 {
 	chunk_t res;
@@ -27,15 +39,29 @@ int main(int argc, char *argv[])
 	atexit(library_deinit);
 	lib->plugins->load(lib->plugins, NULL, PLUGINS);
 
-	if (argc != 2)
+	if (argc != 3 || (!streq(argv[1], "a") && !streq(argv[1], "s")))
 	{
-		fprintf(stderr, "usage: %s <url>\n", argv[0]);
+		fprintf(stderr, "usage: %s a|s <url>\n", argv[0]);
+		return 1;
 	}
-	if (lib->fetcher->fetch(lib->fetcher, argv[1], &res, FETCH_END) == SUCCESS)
+	if (streq(argv[1], "a"))
 	{
-		ignore_result(write(1, res.ptr, res.len));
-		free(res.ptr);
-		return 0;
+		if (lib->fetcher->fetch(lib->fetcher, argv[2], &res,
+								FETCH_END) == SUCCESS)
+		{
+			ignore_result(write(1, res.ptr, res.len));
+			free(res.ptr);
+			return 0;
+		}
+	}
+	else
+	{
+		if (lib->fetcher->fetch(lib->fetcher, argv[2], NULL,
+								FETCH_CALLBACK, cb, FETCH_END) == SUCCESS)
+		{
+			fprintf(stderr, "received %d chunks\n", count);
+			return 0;
+		}
 	}
 	return 1;
 }