Make life easier for plugins: - Added MAILBOX_OPEN_SAVEONLY flag for mailbox_open(), which is set when mailbox is opened only for append/copy - Added a couple of MAIL_STORAGE_ERR_* string defines that should be used when giving visible errors to clients - Added failed-flag for mailbox_list_context, which plugins can directly set to make mail_storage_mailbox_list_deinit() return failure - Added mail_storage_get_mailbox_path() and mail_storage_get_mailbox_control_dir() to return locations for mailbox directories Also be more strict when validating mailbox names.

--- a/src/imap/cmd-append.c	Wed Feb 22 15:58:43 2006 +0200
+++ b/src/imap/cmd-append.c	Wed Feb 22 16:52:11 2006 +0200
@@ -365,8 +365,8 @@
 	    mailbox_equals(cmd->client->mailbox, storage, name))
 		return cmd->client->mailbox;
 
-	box = mailbox_open(storage, name, NULL, MAILBOX_OPEN_FAST |
-			   MAILBOX_OPEN_KEEP_RECENT);
+	box = mailbox_open(storage, name, NULL, MAILBOX_OPEN_SAVEONLY |
+			   MAILBOX_OPEN_FAST | MAILBOX_OPEN_KEEP_RECENT);
 	if (box == NULL) {
 		client_send_storage_error(cmd, storage);
 		return NULL;