lib-storage: If root dir already exists as file, log better error message.

diff --git a/src/lib-storage/mailbox-list.c b/src/lib-storage/mailbox-list.c
index 482e651fa0de8ff82968711e62b509da5767299d..8dc2b578fe63254f5cdf766f1ae3a401bf454f92 100644 (file)
--- a/src/lib-storage/mailbox-list.c
+++ b/src/lib-storage/mailbox-list.c
@@ -1213,6 +1213,11 @@ int mailbox_list_try_mkdir_root(struct mailbox_list *list, const char *path,
        if (stat(path, &st) == 0) {
                /* looks like it already exists, don't bother checking
                   further. */
+               if (!S_ISDIR(st.st_mode)) {
+                       *error_r = t_strdup_printf(
+                               "Root directory is a file: %s", path);
+                       return -1;
+               }
                return 0;
        }