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diff --git a/src/ceph/src/common/escape.h b/src/ceph/src/common/escape.h
new file mode 100644
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--- /dev/null
+++ b/src/ceph/src/common/escape.h
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2011 New Dream Network
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ *
+ */
+
+#ifndef CEPH_RGW_ESCAPE_H
+#define CEPH_RGW_ESCAPE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Returns the length of a buffer that would be needed to escape 'buf'
+ * as an XML attrribute
+ */
+int escape_xml_attr_len(const char *buf);
+
+/* Escapes 'buf' as an XML attribute. Assumes that 'out' is at least long
+ * enough to fit the output. You can find out the required length by calling
+ * escape_xml_attr_len first.
+ */
+void escape_xml_attr(const char *buf, char *out);
+
+/* Returns the length of a buffer that would be needed to escape 'buf'
+ * as an JSON attrribute
+ */
+int escape_json_attr_len(const char *buf, int src_len);
+
+/* Escapes 'buf' as an JSON attribute. Assumes that 'out' is at least long
+ * enough to fit the output. You can find out the required length by calling
+ * escape_json_attr_len first.
+ */
+void escape_json_attr(const char *buf, int src_len, char *out);
+
+/* Note: we escape control characters. Although the XML spec doesn't actually
+ * require this, Amazon does it in their XML responses.
+ */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif