From bd795255aaeeed9bf1be74c5dcad1cb0f3466d67 Mon Sep 17 00:00:00 2001
From: Asanka Herath <asanka@secure-endpoints.com>
Date: Tue, 24 Aug 2010 00:00:16 -0400
Subject: [PATCH] Fix fcc_remove_cred() on platforms with non-standard rename()

---
 lib/krb5/fcache.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/krb5/fcache.c b/lib/krb5/fcache.c
index 85c95bd5e..1e6397427 100644
--- a/lib/krb5/fcache.c
+++ b/lib/krb5/fcache.c
@@ -814,6 +814,14 @@ fcc_remove_cred(krb5_context context,
     }
 
     ret = rename(&newname[5], FILENAME(id));
+#ifdef RENAME_DOES_NOT_UNLINK
+    if (ret && (errno == EEXIST || errno == EACCES)) {
+	ret = unlink(FILENAME(id));
+	if (ret == 0) {
+	    ret = rename(&newname[5], FILENAME(id));
+	}
+    }
+#endif
     if (ret)
 	ret = errno;
     free(newname);