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diff --git a/src/lib/libcrypto/dh/dh.h b/src/lib/libcrypto/dh/dh.h
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+/* crypto/dh/dh.h */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * 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 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#ifndef HEADER_DH_H
+#define HEADER_DH_H
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+#ifndef HEADER_BN_H
+#define BIGNUM          char
+#endif
+
+typedef struct dh_st
+        {
+        /* This first argument is used to pick up errors when
+         * a DH is passed instead of a EVP_PKEY */
+        int pad;
+        int version;
+        BIGNUM *p;
+        BIGNUM *g;
+        int length; /* optional */
+        BIGNUM *pub_key;        /* y */
+        BIGNUM *priv_key;       /* x */
+        } DH;
+
+#define DH_GENERATOR_2          2
+/* #define DH_GENERATOR_3       3 */
+#define DH_GENERATOR_5          5
+
+/* DH_check error codes */
+#define DH_CHECK_P_NOT_PRIME            0x01
+#define DH_CHECK_P_NOT_STRONG_PRIME     0x02
+#define DH_UNABLE_TO_CHECK_GENERATOR    0x04
+#define DH_NOT_SUITABLE_GENERATOR       0x08
+
+#define DHparams_dup(x) (DH *)ASN1_dup((int (*)())i2d_DHparams, \
+                (char *(*)())d2i_DHparams,(char *)(x))
+#define d2i_DHparams_fp(fp,x) (DH *)ASN1_d2i_fp((char *(*)())DH_new, \
+                (char *(*)())d2i_DHparams,(fp),(unsigned char **)(x))
+#define i2d_DHparams_fp(fp,x) ASN1_i2d_fp(i2d_DHparams,(fp), \
+                (unsigned char *)(x))
+#define d2i_DHparams_bio(bp,x) (DH *)ASN1_d2i_bio((char *(*)())DH_new, \
+                (char *(*)())d2i_DHparams,(bp),(unsigned char **)(x))
+#define i2d_DHparams_bio(bp,x) ASN1_i2d_bio(i2d_DHparams,(bp), \
+                (unsigned char *)(x))
+
+#ifndef NOPROTO
+DH *    DH_new(void);
+void    DH_free(DH *dh);
+int     DH_size(DH *dh);
+DH *    DH_generate_parameters(int prime_len,int generator,
+                void (*callback)(int,int,char *),char *cb_arg);
+int     DH_check(DH *dh,int *codes);
+int     DH_generate_key(DH *dh);
+int     DH_compute_key(unsigned char *key,BIGNUM *pub_key,DH *dh);
+DH *    d2i_DHparams(DH **a,unsigned char **pp, long length);
+int     i2d_DHparams(DH *a,unsigned char **pp);
+#ifndef NO_FP_API
+int     DHparams_print_fp(FILE *fp, DH *x);
+#endif
+#ifdef HEADER_BIO_H
+int     DHparams_print(BIO *bp, DH *x);
+#else
+int     DHparams_print(char *bp, DH *x);
+#endif
+void    ERR_load_DH_strings(void );
+
+#else
+
+DH *    DH_new();
+void    DH_free();
+int     DH_size();
+DH *    DH_generate_parameters();
+int     DH_check();
+int     DH_generate_key();
+int     DH_compute_key();
+DH *    d2i_DHparams();
+int     i2d_DHparams();
+#ifndef NO_FP_API
+int     DHparams_print_fp();
+#endif
+int     DHparams_print();
+void    ERR_load_DH_strings();
+
+#endif
+
+/* BEGIN ERROR CODES */
+/* Error codes for the DH functions. */
+
+/* Function codes. */
+#define DH_F_DHPARAMS_PRINT                              100
+#define DH_F_DHPARAMS_PRINT_FP                           101
+#define DH_F_DH_COMPUTE_KEY                              102
+#define DH_F_DH_GENERATE_KEY                             103
+#define DH_F_DH_GENERATE_PARAMETERS                      104
+#define DH_F_DH_NEW                                      105
+
+/* Reason codes. */
+#define DH_R_NO_PRIVATE_VALUE                            100
+ 
+#ifdef  __cplusplus
+}
+#endif
+#endif
+