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+#ifndef md5_h
+#define md5_h
+
+/*
+** Copyright 1998 - 2001 Double Precision, Inc.
+** See COPYING for distribution information.
+*/
+
+/*
+** RFC 1321 MD5 Message digest calculation.
+**
+** Returns a pointer to a sixteen-byte message digest.
+*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if HAVE_CONFIG_H
+#include "md5/config.h"
+#endif
+
+#if HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#define MD5_DIGEST_SIZE 16
+#define MD5_BLOCK_SIZE 64
+
+typedef unsigned char MD5_DIGEST[MD5_DIGEST_SIZE];
+
+#ifdef MD5_INTERNAL
+
+struct MD5_CONTEXT {
+
+ MD5_WORD A, B, C, D;
+
+ unsigned char blk[MD5_BLOCK_SIZE];
+ unsigned blk_ptr;
+ } ;
+
+void md5_context_init(struct MD5_CONTEXT *);
+void md5_context_hash(struct MD5_CONTEXT *,
+ const unsigned char[MD5_BLOCK_SIZE]);
+void md5_context_hashstream(struct MD5_CONTEXT *, const void *, unsigned);
+void md5_context_endstream(struct MD5_CONTEXT *, unsigned long);
+void md5_context_digest(struct MD5_CONTEXT *, MD5_DIGEST);
+
+void md5_context_restore(struct MD5_CONTEXT *, const MD5_DIGEST);
+
+#endif
+
+void md5_digest(const void *msg, unsigned int len, MD5_DIGEST);
+
+char *md5_crypt_redhat(const char *, const char *);
+#define md5_crypt md5_crypt_redhat
+
+const char *md5_hash_courier(const char *);
+const char *md5_hash_raw(const char *);
+
+#ifdef __cplusplus
+} ;
+#endif
+
+#endif