Not properly clearing memory on key generation

[Michael L. <you...@sn...>]

Looking through the silc code, I happened upon this in
irssi/src/silc/core/clientutil.c:
    memset(key, 0, sizeof(key_len));

This seems wrong.  key_len is just an int containing the length of key.
Simple patch:

--- clientutil.c        Thu Apr 11 10:40:26 2002
+++ clientutil.c-       Tue May 28 18:40:09 2002
@@ -223,7 +223,7 @@
   if (ret_pub_key)
     *ret_pub_key = pub_key;

-  memset(key, 0, sizeof(key_len));
+  memset(key, 0, key_len);
   silc_free(key);

   /* Save private key into file */
@@ -239,7 +239,7 @@
   printf("Press <Enter> to continue...\n");
   getchar();

-  memset(key, 0, sizeof(key_len));
+  memset(key, 0, key_len);
   silc_free(key);

   silc_rng_free(rng);