Don't free null uid buffers.

diff --git a/server/mdb.c b/server/mdb.c
index 447838c7cb00ede4cbd55242cb6fc3041e3c9170..7c3c1db04124cbbb9fd682dc2b72dc7456199c5b 100644 (file)
--- a/server/mdb.c
+++ b/server/mdb.c
@@ -43,7 +43,7 @@
 
 #ifndef lint
 static char copyright[] =
-"$Id: mdb.c,v 1.66 2001/04/30 22:38:34 mellon Exp $ Copyright (c) 1996-2000 The Internet Software Consortium.  All rights reserved.\n";
+"$Id: mdb.c,v 1.67 2001/05/02 07:09:36 mellon Exp $ Copyright (c) 1996-2000 The Internet Software Consortium.  All rights reserved.\n";
 #endif /* not lint */
 
 #include "dhcpd.h"
@@ -1376,7 +1376,7 @@ void abandon_lease (lease, message)
        log_error ("Abandoning IP address %s: %s",
              piaddr (lease -> ip_addr), message);
        lt -> hardware_addr.hlen = 0;
-       if (lt -> uid != lt -> uid_buf)
+       if (lt -> uid && lt -> uid != lt -> uid_buf)
                dfree (lt -> uid, MDL);
        lt -> uid = (unsigned char *)0;
        lt -> uid_len = 0;
@@ -1407,7 +1407,7 @@ void dissociate_lease (lease)
 #endif
        lt -> ends = cur_time; /* XXX */
        lt -> hardware_addr.hlen = 0;
-       if (lt -> uid != lt -> uid_buf)
+       if (lt -> uid && lt -> uid != lt -> uid_buf)
                dfree (lt -> uid, MDL);
        lt -> uid = (unsigned char *)0;
        lt -> uid_len = 0;