diff -urN snarf-7.0.orig/http.c snarf-7.0/http.c
--- snarf-7.0.orig/http.c	2003-08-01 14:46:26.000000000 +0100
+++ snarf-7.0/http.c	2003-08-01 14:44:02.000000000 +0100
@@ -447,6 +447,10 @@
  cleanup:
         free_http_header(header);
         close(sock); fclose(out);
+		if ((rsrc->open_created) && (rsrc->outfile_size == 0)
+			&& (retval == 0))
+			if (unlink(rsrc->outfile))
+				report(ERR, "unlink %s: %s", rsrc->outfile, strerror(errno));
         return retval;
 
 }
diff -urN snarf-7.0.orig/url.h snarf-7.0/url.h
--- snarf-7.0.orig/url.h	2003-08-01 14:46:26.000000000 +0100
+++ snarf-7.0/url.h	2003-08-01 13:27:22.000000000 +0100
@@ -25,6 +25,7 @@
 struct _UrlResource {
 	Url *url;
 	char *outfile;
+	unsigned int open_created;
         char *proxy;
         char *proxy_username;
         char *proxy_password;
diff -urN snarf-7.0.orig/util.h snarf-7.0/util.h
--- snarf-7.0.orig/util.h	2000-08-09 01:12:25.000000000 +0100
+++ snarf-7.0/util.h	2003-08-01 14:53:54.000000000 +0100
@@ -53,7 +53,7 @@
 extern int debug_enabled;
 
 #define open_outfile(x)  (((x)->outfile[0] == '-') ? stdout : real_open_outfile(x))
-#define real_open_outfile(x)  (((x)->options & OPT_RESUME && !((x)->options & OPT_NORESUME)) ? (fopen((x)->outfile, "a")) : (fopen((x)->outfile, "w")))
+#define real_open_outfile(x)  (((x)->open_created = (access ((x)->outfile, F_OK)) ? 1 : 0 ),((x)->options & OPT_RESUME && !((x)->options & OPT_NORESUME)) ? (fopen((x)->outfile, "a")) : (fopen((x)->outfile, "w")))
 
 #define safe_free(x)		if(x) free(x)
 #define safe_strdup(x)		( (x) ? strdup(x) : NULL )