From 2656fd548d3ef726a659e6d5b3bc82b02c86bff2 Mon Sep 17 00:00:00 2001
From: "Jay Freeman (saurik)" <saurik@saurik.com>
Date: Mon, 27 Jun 2011 03:23:24 -0700
Subject: Add support for unionfs stash check.

---
 MobileCydia.mm | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/MobileCydia.mm b/MobileCydia.mm
index 3e46875..625e34d 100644
--- a/MobileCydia.mm
+++ b/MobileCydia.mm
@@ -10197,9 +10197,20 @@ _trace();
         return;
     }
 
+    struct stat root;
+    int error(stat("/", &root));
+    _assert(error != -1);
+
     #define Stash_(path) do { \
-        if (readlink((path), NULL, 0) == -1 && errno == EINVAL) \
-            goto stash; \
+        struct stat folder; \
+        int error(lstat((path), &folder)); \
+        if (error != -1 && ( \
+            folder.st_dev == root.st_dev && \
+            S_ISDIR(folder.st_mode) \
+        ) || error == -1 && ( \
+            errno == ENOENT || \
+            errno == ENOTDIR \
+        )) goto stash; \
     } while (false)
 
     Stash_("/Applications");
-- 
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