File texinfo-4.8-echo.patch of Package texinfo

--- info/echo-area.c
+++ info/echo-area.c	Tue Jan 25 17:32:07 2005
@@ -1502,7 +1502,7 @@
 void
 inform_in_echo_area (const char *message)
 {
-  int i;
+  int i, len;
   char *text;
   int avail = EA_MAX_INPUT + 1 - input_line_end;
 
@@ -1512,7 +1512,13 @@
   text[i] = 0;
 
   echo_area_initialize_node ();
-  sprintf (&input_line[input_line_end], "%s[%s]\n",
+
+  len = EA_MAX_INPUT - input_line_end;
+  if (len <= 0) {
+	free (text);
+	return;
+  }
+  snprintf (&input_line[input_line_end], len, "%s[%s]\n",
            echo_area_is_active ? " ": "", text);
   free (text);
   the_echo_area->point = input_line_point;