[balsa] Do not append NULL internet-address-list

[Peter Bloomfield <PeterB src gnome org>]

commit 4001da85c0db801870070a6189d39eb2074c2a04
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Wed Dec 16 11:25:33 2009 -0500

    Do not append NULL internet-address-list

 ChangeLog       |    9 +++++++--
 libbalsa/send.c |   35 ++++++++++++++++++++++-------------
 2 files changed, 29 insertions(+), 15 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 57e05ae..da0493b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,7 +1,12 @@
+2009-12-16  Peter Bloomfield
+
+	* libbalsa/send.c (libbalsa_message_create_mime_message): do not
+	append NULL list in internet_address_list_append.
+
 2009-12-16  Mario Mikocevic <mario mikocevic t-com hr>
 
-	* balsa.spec.in: for 2.4.2 to successfuly compile a rpm, following
-	small patch is needed.
+	* balsa.spec.in: for 2.4.2 to successfuly compile a rpm, a small
+	patch is needed.
 
 2009-12-14  Peter Bloomfield
 
diff --git a/libbalsa/send.c b/libbalsa/send.c
index 7ee478e..d3beeec 100644
--- a/libbalsa/send.c
+++ b/libbalsa/send.c
@@ -1673,7 +1673,7 @@ libbalsa_message_create_mime_message(LibBalsaMessage* message, gboolean flow,
     GMimeObject *mime_root = NULL;
     GMimeMessage *mime_message;
     LibBalsaMessageBody *body;
-    InternetAddressList *recipients;
+    InternetAddressList *ia_list;
     gchar *tmp;
     GList *list;
     GtkWindow * parent;
@@ -1900,18 +1900,27 @@ libbalsa_message_create_mime_message(LibBalsaMessage* message, gboolean flow,
     g_mime_message_set_date(mime_message, message->headers->date,
                             get_tz_offset(&message->headers->date));
 
-    recipients = g_mime_message_get_recipients(mime_message,
-                                               GMIME_RECIPIENT_TYPE_TO);
-    internet_address_list_append(recipients, message->headers->to_list);
-    
-    recipients = g_mime_message_get_recipients(mime_message,
-                                               GMIME_RECIPIENT_TYPE_CC);
-    internet_address_list_append(recipients, message->headers->cc_list);
-    
-    recipients = g_mime_message_get_recipients(mime_message,
-                                               GMIME_RECIPIENT_TYPE_BCC);
-    internet_address_list_append(recipients, message->headers->bcc_list);
-    
+    if ((ia_list = message->headers->to_list)) {
+        InternetAddressList *recipients =
+            g_mime_message_get_recipients(mime_message,
+                                          GMIME_RECIPIENT_TYPE_TO);
+        internet_address_list_append(recipients, ia_list);
+    }
+
+    if ((ia_list = message->headers->cc_list)) {
+        InternetAddressList *recipients =
+            g_mime_message_get_recipients(mime_message,
+                                          GMIME_RECIPIENT_TYPE_CC);
+        internet_address_list_append(recipients, ia_list);
+    }
+
+    if ((ia_list = message->headers->bcc_list)) {
+        InternetAddressList *recipients =
+            g_mime_message_get_recipients(mime_message,
+                                          GMIME_RECIPIENT_TYPE_BCC);
+        internet_address_list_append(recipients, ia_list);
+    }
+
     if (message->headers->dispnotify_to) {
         tmp = internet_address_list_to_string(message->headers->dispnotify_to, TRUE);
 	if (tmp) {