Simplify calls to final delivery functions.

* maidag/deliver.c (mda): Pass msg as a 1st argument to deliver.
(deliver_to_user): Remove 1st argument.
(deliver): Change type of the 1st argument to mu_message_t.
* maidag/lmtp.c (dot_deliver): Pass msg as a 1st argument to
deliver.
* maidag/maidag.c (sieve_test): Change type of the 2nd argument to
mu_message_t.
* maidag/maidag.h (sieve_test, deliver): Pass mu_message_t,
instead of mu_message_t.

* mailbox/mailer.c (mu_mailer_create_from_url): Set default debug
level.
* sql/mysql.c (mu_mysql_connect): Avoid coredumps if conn->server
is NULL.

+2008-11-05  Sergey Poznyakoff  <gray@gnu.org.ua>
+
+	Simplify calls to final delivery functions.
+	
+	* maidag/deliver.c (mda): Pass msg as a 1st argument to deliver.
+	(deliver_to_user): Remove 1st argument.
+	(deliver): Change type of the 1st argument to mu_message_t.
+	* maidag/lmtp.c (dot_deliver): Pass msg as a 1st argument to
+	deliver.
+	* maidag/maidag.c (sieve_test): Change type of the 2nd argument to
+	mu_message_t.
+	* maidag/maidag.h (sieve_test, deliver): Pass mu_message_t,
+	instead of mu_message_t.
+	
+	* mailbox/mailer.c (mu_mailer_create_from_url): Set default debug
+	level.
+	* sql/mysql.c (mu_mysql_connect): Avoid coredumps if conn->server
+	is NULL.
+
 2008-10-28  Sergey Poznyakoff  <gray@gnu.org.ua>
 
 	Make maidag hanlde mailer URLs.

@@ -44,7 +44,17 @@ make_tmp (const char *from, mu_mailbox_t *mbox)
 int
 mda (mu_mailbox_t mbx, char *username)
 {
-  deliver (mbx, username, NULL);
+  int status;
+  mu_message_t msg;
+  
+  if ((status = mu_mailbox_get_message (mbx, 1, &msg)) != 0)
+    {
+      maidag_error (_("Cannot get message from the temporary mailbox: %s"),
+		    mu_strerror (status));
+      return EX_TEMPFAIL;
+    }
+
+  deliver (msg, username, NULL);
 
   if (multiple_delivery)
     exit_code = EX_OK;
@@ -143,7 +153,7 @@ attach_notify (mu_mailbox_t mbox)
 }  
 
 int
-deliver_to_user (mu_mailbox_t imbx, mu_mailbox_t mbox, mu_message_t msg,
+deliver_to_user (mu_mailbox_t mbox, mu_message_t msg,
 		 struct mu_auth_data *auth,
 		 char **errp)
 {
@@ -187,7 +197,7 @@ deliver_to_user (mu_mailbox_t imbx, mu_mailbox_t mbox, mu_message_t msg,
   if (auth)
     {
       mu_off_t n;
-      mu_off_t msg_size;
+      size_t msg_size;
       mu_off_t mbsize;
       
       if ((status = mu_mailbox_get_size (mbox, &mbsize)))
@@ -216,7 +226,7 @@ deliver_to_user (mu_mailbox_t imbx, mu_mailbox_t mbox, mu_message_t msg,
 	  break;
 	  
 	default:
-	  if ((status = mu_mailbox_get_size (imbx, &msg_size)))
+	  if ((status = mu_message_size (msg, &msg_size)))
 	    {
 	      maidag_error (_("Cannot get message size (input message %s): %s"),
 			    path, mu_strerror (status));
@@ -292,11 +302,10 @@ is_mailer_url (mu_url_t url)
 #define REMOTE_PREFIX_LEN (sizeof(REMOTE_PREFIX)-1)
 
 int
-deliver_url (mu_url_t url, mu_mailbox_t imbx, const char *name, char **errp)
+deliver_url (mu_url_t url, mu_message_t msg, const char *name, char **errp)
 {
   struct mu_auth_data *auth = NULL;
   mu_mailbox_t mbox;
-  mu_message_t msg;
   int status;
 
   if (name)
@@ -314,7 +323,7 @@ deliver_url (mu_url_t url, mu_mailbox_t imbx, const char *name, char **errp)
       if (current_uid)
 	auth->change_uid = 0;
   
-      if (!sieve_test (auth, imbx))
+      if (!sieve_test (auth, msg))
 	{
 	  exit_code = EX_OK;
 	  mu_auth_data_free (auth);
@@ -322,14 +331,6 @@ deliver_url (mu_url_t url, mu_mailbox_t imbx, const char *name, char **errp)
 	}
     }
   
-  if ((status = mu_mailbox_get_message (imbx, 1, &msg)) != 0)
-    {
-      maidag_error (_("Cannot get message from the temporary mailbox: %s"),
-		    mu_strerror (status));
-      mu_auth_data_free (auth);
-      return EX_TEMPFAIL;
-    }
-
   if (!url)
     {
       status = mu_url_create (&url, auth->mailbox);
@@ -394,7 +395,7 @@ deliver_url (mu_url_t url, mu_mailbox_t imbx, const char *name, char **errp)
      will be created */
   if (switch_user_id (auth, 1))
     return EX_TEMPFAIL;
-  status = deliver_to_user (imbx, mbox, msg, auth, errp);
+  status = deliver_to_user (mbox, msg, auth, errp);
   if (switch_user_id (auth, 0))
     return EX_TEMPFAIL;
 
@@ -405,7 +406,7 @@ deliver_url (mu_url_t url, mu_mailbox_t imbx, const char *name, char **errp)
 }
 
 int
-deliver (mu_mailbox_t imbx, char *dest_id, char **errp)
+deliver (mu_message_t msg, char *dest_id, char **errp)
 {
   int status;
   const char *name;
@@ -455,6 +456,6 @@ deliver (mu_mailbox_t imbx, char *dest_id, char **errp)
       name = dest_id;
       dest_id = NULL;
     }
-  return deliver_url (url, imbx, name, errp);
+  return deliver_url (url, msg, name, errp);
 }
   

@@ -348,8 +348,20 @@ dot_deliver (void *item, void *cbdata)
   char *name = item;
   FILE *out = cbdata;
   char *errp = NULL;
+  mu_message_t msg;
+  int status;
   
-  switch (deliver (mbox, name, &errp))
+  if ((status = mu_mailbox_get_message (mbox, 1, &msg)) != 0)
+    {
+      mu_error (_("Cannot get message from the temporary mailbox: %s"),
+		mu_strerror (status));
+      lmtp_reply (out, "450", "4.1.0",
+		  "%s: temporary failure, try again later",
+		  name);
+      return 0;
+    }
+
+  switch (deliver (msg, name, &errp))
     {
     case 0:
       lmtp_reply (out, "250", "2.0.0", "%s: delivered", name);

@@ -408,7 +408,7 @@ _sieve_parse_error (void *user_name, const char *filename, int lineno,
 }
 
 int
-sieve_test (struct mu_auth_data *auth, mu_mailbox_t mbx)
+sieve_test (struct mu_auth_data *auth, mu_message_t msg)
 {
   int rc = 1;
   char *progfile;
@@ -443,9 +443,7 @@ sieve_test (struct mu_auth_data *auth, mu_mailbox_t mbx)
 	  if (rc == 0)
 	    {
 	      mu_attribute_t attr;
-	      mu_message_t msg = NULL;
-		
-	      mu_mailbox_get_message (mbx, 1, &msg);
+
 	      mu_message_get_attribute (msg, &attr);
 	      mu_attribute_unset_deleted (attr);
 	      if (switch_user_id (auth, 1) == 0)

@@ -142,8 +142,8 @@ void notify_biff (mu_mailbox_t mbox, char *name, size_t size);
 void guess_retval (int ec);
 
 int mda (mu_mailbox_t mbx, char *username);
-int deliver (mu_mailbox_t imbx, char *name, char **errp);
-int sieve_test (struct mu_auth_data *auth, mu_mailbox_t mbx);
+int deliver (mu_message_t msg, char *name, char **errp);
+int sieve_test (struct mu_auth_data *auth, mu_message_t msg);
 int check_quota (struct mu_auth_data *auth, mu_off_t size, mu_off_t *rest);
 
 #ifdef WITH_GUILE

@@ -88,6 +88,19 @@ mu_mailer_get_url_default (const char **url)
   return 0;
 }
 
+static void
+set_default_debug (mu_mailer_t mailer)
+{
+  mu_log_level_t level = mu_global_debug_level ("mailer");
+  if (level)
+    {
+      mu_debug_t debug;
+      if (mu_mailer_get_debug (mailer, &debug))
+	return;
+      mu_debug_set_level (debug, level);
+    }
+}
+
 int
 mu_mailer_create_from_url (mu_mailer_t *pmailer, mu_url_t url)
 {
@@ -134,6 +147,7 @@ mu_mailer_create_from_url (mu_mailer_t *pmailer, mu_url_t url)
 	  mailer->url = url;
 	  *pmailer = mailer;
 
+	  set_default_debug (mailer);
 	  return status;
 	}
     }

@@ -93,7 +93,7 @@ mu_mysql_connect (mu_sql_connection_t conn)
   
   mysql_init (mp->mysql);
 
-  if (conn->server[0] == '/')
+  if (conn->server && conn->server[0] == '/')
     {
       host = "localhost";
       socket_name = conn->server;