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diff --git a/libcurl/src/lib/curl_md5.h b/libcurl/src/lib/curl_md5.h
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+#ifndef HEADER_CURL_MD5_H
+#define HEADER_CURL_MD5_H
+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+
+#ifndef CURL_DISABLE_CRYPTO_AUTH
+#include "curl_hmac.h"
+
+#define MD5_DIGEST_LEN 16
+
+typedef void (* Curl_MD5_init_func)(void *context);
+typedef void (* Curl_MD5_update_func)(void *context,
+ const unsigned char *data,
+ unsigned int len);
+typedef void (* Curl_MD5_final_func)(unsigned char *result, void *context);
+
+typedef struct {
+ Curl_MD5_init_func md5_init_func; /* Initialize context procedure */
+ Curl_MD5_update_func md5_update_func; /* Update context with data */
+ Curl_MD5_final_func md5_final_func; /* Get final result procedure */
+ unsigned int md5_ctxtsize; /* Context structure size */
+ unsigned int md5_resultlen; /* Result length (bytes) */
+} MD5_params;
+
+typedef struct {
+ const MD5_params *md5_hash; /* Hash function definition */
+ void *md5_hashctx; /* Hash function context */
+} MD5_context;
+
+extern const MD5_params Curl_DIGEST_MD5[1];
+extern const HMAC_params Curl_HMAC_MD5[1];
+
+CURL_STATIC void Curl_md5it(unsigned char *output,
+ const unsigned char *input);
+
+CURL_STATIC MD5_context * Curl_MD5_init(const MD5_params *md5params);
+CURL_STATIC int Curl_MD5_update(MD5_context *context,
+ const unsigned char *data,
+ unsigned int len);
+CURL_STATIC int Curl_MD5_final(MD5_context *context, unsigned char *result);
+
+#endif
+
+#endif /* HEADER_CURL_MD5_H */