From 056fc8cf87c0f7575d7197091b71108d8c72a36a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Love=20H=C3=B6rnquist=20=C3=85strand?= <lha@kth.se>
Date: Sun, 11 Jan 2009 21:40:23 +0000
Subject: [PATCH] make sure emem_trunc doesnt point past end

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@24230 ec53bebd-3082-4978-b11e-865c3cabbd6b
---
 lib/krb5/store_emem.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/krb5/store_emem.c b/lib/krb5/store_emem.c
index f5aaa159a..98f2a2ca2 100644
--- a/lib/krb5/store_emem.c
+++ b/lib/krb5/store_emem.c
@@ -123,6 +123,8 @@ emem_trunc(krb5_storage *sp, off_t offset)
 	s->base = base;
     }
     s->len = offset;
+    if ((s->ptr - s->base) > offset)
+	s->ptr = s->base + offset;
     return 0;
 }