From: Wilfried Goesgens <dothebart@citadel.org>
Date: Sun, 29 Sep 2013 18:11:50 +0000 (+0200)
Subject: don't rely on malloc to handle (0) parameter; abort before.
X-Git-Tag: v9.01~234
X-Git-Url: https://code.citadel.org/?p=citadel.git;a=commitdiff_plain;h=4a6e39221455f0dc87eda495ee6dc845b1a7afee

don't rely on malloc to handle (0) parameter; abort before.
---

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;