--- src/sbin/jscan/jstream.c	2005/09/06 18:43:52	1.6
+++ src/sbin/jscan/jstream.c	2005/09/06 22:33:00	1.7
@@ -221,6 +221,8 @@ jsreadp(struct jstream *js, off_t off, c
 		free(js->js_alloc_buf);
 	    js->js_alloc_buf = malloc(bytes);
 	    js->js_alloc_size = bytes;
+	    if (js->js_alloc_buf == NULL)
+		fprintf(stderr, "attempt to allocate %d bytes failed\n", bytes);
 	    assert(js->js_alloc_buf != NULL);
 	}
 	error = jsread(js, off, js->js_alloc_buf, bytes);