X-Git-Url: https://code.citadel.org/?a=blobdiff_plain;f=libcitadel%2Flib%2Fxdgmime%2Fxdgmimecache.c;h=f544cf41210fc2f0cdb9f2da7892363ee9b06e83;hb=06fa75749ac05e2908d82f0b7de8066d77fd3fa3;hp=d5eae935f64d1d7d31d30e544311ae518d6ae1e0;hpb=1b3b110b994683c454c11acc257651173a6a52f0;p=citadel.git

diff --git a/libcitadel/lib/xdgmime/xdgmimecache.c b/libcitadel/lib/xdgmime/xdgmimecache.c
index d5eae935f..f544cf412 100644
--- a/libcitadel/lib/xdgmime/xdgmimecache.c
+++ b/libcitadel/lib/xdgmime/xdgmimecache.c
@@ -709,6 +709,8 @@ _xdg_mime_cache_get_mime_type_for_file (const char  *file_name,
    * be large and need getting from a stream instead of just reading it all
    * in. */
   max_extent = _xdg_mime_cache_get_max_buffer_extents ();
+  if (max_extent == 0)
+    return XDG_MIME_TYPE_UNKNOWN;
   data = malloc (max_extent);
   if (data == NULL)
     return XDG_MIME_TYPE_UNKNOWN;