text: /* crypto/rsa/rsa_depr.c */
  /* ====================================================================
   * Copyright (c) 1998-2002 The OpenSSL Project.  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. All advertising materials mentioning features or use of this
   *    software must display the following acknowledgment:
   *    "This product includes software developed by the OpenSSL Project
   *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
   *
   * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
   *    endorse or promote products derived from this software without
   *    prior written permission. For written permission, please contact
   *    openssl-core@openssl.org.
   *
   * 5. Products derived from this software may not be called "OpenSSL"
   *    nor may "OpenSSL" appear in their names without prior written
   *    permission of the OpenSSL Project.
   *
   * 6. Redistributions of any form whatsoever must retain the following
   *    acknowledgment:
   *    "This product includes software developed by the OpenSSL Project
   *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
   *
   * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
   * EXPRESSED 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 OpenSSL PROJECT OR
   * ITS 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.
   * ====================================================================
   *
   * This product includes cryptographic software written by Eric Young
   * (eay@cryptsoft.com).  This product includes software written by Tim
   * Hudson (tjh@cryptsoft.com).
   *
   */
  
  /*
   * NB: This file contains deprecated functions (compatibility wrappers to the
   * "new" versions).
   */
  
  #include <stdio.h>
  #include <time.h>
  #include "internal/cryptlib.h"
  #include <openssl/bn.h>
  #include <openssl/rsa.h>
  
  #ifdef OPENSSL_NO_DEPRECATED
  
  static void *dummy = &dummy;
  
  #else
  
  RSA *RSA_generate_key(int bits, unsigned long e_value,
                        void (*callback) (int, int, void *), void *cb_arg)
  {
      int i;
      BN_GENCB *cb = BN_GENCB_new();
      RSA *rsa = RSA_new();
      BIGNUM *e = BN_new();
  
      if (!cb || !rsa || !e)
          goto err;
  
      /*
       * The problem is when building with 8, 16, or 32 BN_ULONG, unsigned long
       * can be larger
       */
      for (i = 0; i < (int)sizeof(unsigned long) * 8; i++) {
          if (e_value & (1UL << i))
              if (BN_set_bit(e, i) == 0)
                  goto err;
      }
  
      BN_GENCB_set_old(cb, callback, cb_arg);
  
      if (RSA_generate_key_ex(rsa, bits, e, cb)) {
          BN_free(e);
          BN_GENCB_free(cb);
          return rsa;
      }
   err:
      BN_free(e);
      RSA_free(rsa);
      BN_GENCB_free(cb);
      return 0;
  }
  #endif
  