From 922c14bca8e95e1d507ece63e0464f45dc92443c Mon Sep 17 00:00:00 2001
From: ticktock35 <ticktock35@e8e0d7a0-c8d9-11dd-a880-a1081c7ac358>
Date: Mon, 15 Dec 2008 00:10:48 -0500
Subject: libopkg: add some checks for NULL strings

git-svn-id: http://opkg.googlecode.com/svn/trunk@78 e8e0d7a0-c8d9-11dd-a880-a1081c7ac358
---
(limited to 'libopkg')

diff --git a/libopkg/opkg.c b/libopkg/opkg.c
index f72bd78..b4aff13 100644
--- a/libopkg/opkg.c
+++ b/libopkg/opkg.c
@@ -131,14 +131,23 @@ opkg_read_config_files (opkg_t *opkg)
   a->multiple_providers = c->multiple_providers;
   a->verbosity = c->verbosity;
 
-  if (a->offline_root) free (a->offline_root);
-  a->offline_root = strdup (c->offline_root);
+  if (c->offline_root)
+  {
+    if (a->offline_root) free (a->offline_root);
+    a->offline_root = strdup (c->offline_root);
+  }
 
-  if (a->offline_root_pre_script_cmd) free (a->offline_root_pre_script_cmd);
-  a->offline_root_pre_script_cmd = strdup (c->offline_root_pre_script_cmd);
+  if (c->offline_root_pre_script_cmd)
+  {
+    if (a->offline_root_pre_script_cmd) free (a->offline_root_pre_script_cmd);
+    a->offline_root_pre_script_cmd = strdup (c->offline_root_pre_script_cmd);
+  }
 
-  if (a->offline_root_post_script_cmd) free (a->offline_root_post_script_cmd);
-  a->offline_root_post_script_cmd = strdup (c->offline_root_post_script_cmd);
+  if (c->offline_root_post_script_cmd)
+  {
+    if (a->offline_root_post_script_cmd) free (a->offline_root_post_script_cmd);
+    a->offline_root_post_script_cmd = strdup (c->offline_root_post_script_cmd);
+  }
 
   /* throw away old opkg_conf and start again */
   opkg_conf_deinit (opkg->conf);
--
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