From 975f86cf41083b91709445c2d5af889cf5aa2e3b Mon Sep 17 00:00:00 2001
From: Endi S. Dewata <edewata@redhat.com>
Date: Dec 09 2010 18:00:03 +0000
Subject: Bug 614511 - fix coverify Defect Type: Null pointer dereferences issues 11846 - 11891


https://bugzilla.redhat.com/show_bug.cgi?id=614511
Resolves: bug 614511
Bug description: Fix coverify Defect Type: Null pointer dereferences issues 11846 - 11891
description: Catch possible NULL pointer in slapi_dn_normalize_ext() and slapi_sdn_done().

---

diff --git a/ldap/servers/slapd/dn.c b/ldap/servers/slapd/dn.c
index 0b74c4f..227a41e 100644
--- a/ldap/servers/slapd/dn.c
+++ b/ldap/servers/slapd/dn.c
@@ -1061,10 +1061,12 @@ slapi_dn_normalize_ext(char *src, size_t src_len, char **dest, size_t *dest_len)
     *dest_len = d - *dest;
 bail:
     if (rc < 0) {
-        if (*dest != src) {
-            slapi_ch_free_string(dest);
-        } else {
-            *dest = NULL;
+        if (dest != NULL) {
+            if (*dest != src) {
+                slapi_ch_free_string(dest);
+            } else {
+                *dest = NULL;
+            }
         }
         *dest_len = 0;
     } else if (rc > 0) {
@@ -1981,6 +1983,10 @@ void
 slapi_sdn_done(Slapi_DN *sdn)
 {
     /* sdn_dump( sdn, "slapi_sdn_done"); */
+    if(sdn==NULL)
+    {
+        return;
+    }
     if(sdn->dn!=NULL)
     {
         if(slapi_isbitset_uchar(sdn->flag,FLAG_DN))