dotmail: fix opening in append-only mode

* libproto/dotmail/dotmail.c (dotmail_rescan_unlocked)
(dotmail_rescan): Skip if mailbox is not opened for reading.

1 files changed, 6 insertions, 0 deletions

diff --git a/libproto/dotmail/dotmail.c b/libproto/dotmail/dotmail.c
index 48ca75673..fa083bb98 100644
--- a/libproto/dotmail/dotmail.c
+++ b/libproto/dotmail/dotmail.c
@@ -326,12 +326,15 @@ dotmail_rescan_unlocked (mu_mailbox_t mailbox, mu_off_t offset)
     "x-imapbase:",
     "x-uid:     ",
   };
   int i, j;
   int force_init_uids = 0;
 
+  if (!(mailbox->flags & MU_STREAM_READ))
+    return 0;
+
   rc = mu_streamref_create (&stream, mailbox->stream);
   if (rc)
     {
       mu_debug (MU_DEBCAT_MAILBOX, MU_DEBUG_ERROR,
                 ("%s:%s (%s): %s",
                  __func__, "mu_streamref_create", dmp->name,
@@ -587,12 +590,15 @@ dotmail_rescan (mu_mailbox_t mailbox, mu_off_t offset)
   struct mu_dotmail_mailbox *dmp = mailbox->data;
   int rc;
 
   if (!dmp)
     return EINVAL;
 
+  if (!(mailbox->flags & MU_STREAM_READ))
+    return 0;
+      
   mu_monitor_wrlock (mailbox->monitor);
 #ifdef WITH_PTHREAD
   pthread_cleanup_push (dotmail_cleanup, (void *)mailbox);
 #endif
 
   rc = mu_stream_size (mailbox->stream, &dmp->size);