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diff --git a/third_party/heimdal/lib/roken/base32.h b/third_party/heimdal/lib/roken/base32.h
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+++ b/third_party/heimdal/lib/roken/base32.h
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+/*
+ * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _BASE32_H_
+#define _BASE32_H_
+
+#ifndef ROKEN_LIB_FUNCTION
+#ifdef _WIN32
+#define ROKEN_LIB_FUNCTION
+#define ROKEN_LIB_CALL __cdecl
+#else
+#define ROKEN_LIB_FUNCTION
+#define ROKEN_LIB_CALL
+#endif
+#endif
+
+enum rk_base32_flags {
+    RK_BASE32_FLAG_PRESERVE_ORDER = 1,
+    RK_BASE32_FLAG_STOP_ON_GARBAGE = 2,
+    RK_BASE32_FLAG_INTERIOR_PADDING_OK = 4,
+};
+
+ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
+rk_base32_encode(const void *, int, char **, enum rk_base32_flags);
+
+ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
+rk_base32_decode(const char *, void *, enum rk_base32_flags);
+
+#endif