/* crypto/pqueue/pqueue_compat.h */

/* 

 * DTLS implementation written by Nagendra Modadugu

 * (nagendra@cs.stanford.edu) for the OpenSSL project 2005.  

 */

/* ====================================================================

 * Copyright (c) 1999-2005 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).

 *

 */

#include "opensslconf.h"

#include <openssl/bn.h>

/* 

 * The purpose of this header file is for supporting 64-bit integer

 * manipulation on 32-bit (and lower) machines.  Currently the only

 * such environment is VMS, Utrix and those with smaller default integer

 * sizes than 32 bits.  For all such environment, we fall back to using

 * BIGNUM.  We may need to fine tune the conditions for systems that

 * are incorrectly configured.

 *

 * The only clients of this code are (1) pqueue for priority, and

 * (2) DTLS, for sequence number manipulation.

 */

#if (defined(THIRTY_TWO_BIT) && !defined(BN_LLONG)) || defined(SIXTEEN_BIT) || defined(EIGHT_BIT)

#define PQ_64BIT_IS_INTEGER 0

#define PQ_64BIT_IS_BIGNUM 1

#define PQ_64BIT     BIGNUM

#define PQ_64BIT_CTX BN_CTX

#define pq_64bit_init(x)           BN_init(x)

#define pq_64bit_free(x)           BN_free(x)

#define pq_64bit_ctx_new(ctx)      BN_CTX_new()

#define pq_64bit_ctx_free(x)       BN_CTX_free(x)

#define pq_64bit_assign(x, y)      BN_copy(x, y)

#define pq_64bit_assign_word(x, y) BN_set_word(x, y)

#define pq_64bit_gt(x, y)          BN_ucmp(x, y) >= 1 ? 1 : 0

#define pq_64bit_eq(x, y)          BN_ucmp(x, y) == 0 ? 1 : 0

#define pq_64bit_add_word(x, w)    BN_add_word(x, w)

#define pq_64bit_sub(r, x, y)      BN_sub(r, x, y)

#define pq_64bit_sub_word(x, w)    BN_sub_word(x, w)

#define pq_64bit_mod(r, x, n, ctx) BN_mod(r, x, n, ctx)

#define pq_64bit_bin2num(bn, bytes, len)   BN_bin2bn(bytes, len, bn)

#define pq_64bit_num2bin(bn, bytes)        BN_bn2bin(bn, bytes)

#define pq_64bit_get_word(x)               BN_get_word(x)

#define pq_64bit_is_bit_set(x, offset)     BN_is_bit_set(x, offset)

#define pq_64bit_lshift(r, x, shift)       BN_lshift(r, x, shift)

#define pq_64bit_set_bit(x, num)           BN_set_bit(x, num)

#define pq_64bit_get_length(x)             BN_num_bits((x))

#else

#define PQ_64BIT_IS_INTEGER 1

#define PQ_64BIT_IS_BIGNUM 0

#if defined(SIXTY_FOUR_BIT)

#define PQ_64BIT BN_ULONG

#define PQ_64BIT_PRINT "%lld"

#elif defined(SIXTY_FOUR_BIT_LONG)

#define PQ_64BIT BN_ULONG

#define PQ_64BIT_PRINT "%ld"

#elif defined(THIRTY_TWO_BIT)

#define PQ_64BIT BN_ULLONG

#define PQ_64BIT_PRINT "%lld"

#endif

#define PQ_64BIT_CTX      void

#define pq_64bit_init(x)

#define pq_64bit_free(x)

#define pq_64bit_ctx_new(ctx)        (ctx)

#define pq_64bit_ctx_free(x)

#define pq_64bit_assign(x, y)        (*(x) = *(y))

#define pq_64bit_assign_word(x, y)   (*(x) = y)

#define pq_64bit_gt(x, y)	         (*(x) > *(y))

#define pq_64bit_eq(x, y)            (*(x) == *(y))

#define pq_64bit_add_word(x, w)      (*(x) = (*(x) + (w)))

#define pq_64bit_sub(r, x, y)        (*(r) = (*(x) - *(y)))

#define pq_64bit_sub_word(x, w)      (*(x) = (*(x) - (w)))

#define pq_64bit_mod(r, x, n, ctx)

#define pq_64bit_bin2num(num, bytes, len) bytes_to_long_long(bytes, num)

#define pq_64bit_num2bin(num, bytes)      long_long_to_bytes(num, bytes)

#define pq_64bit_get_word(x)              *(x)

#define pq_64bit_lshift(r, x, shift)      (*(r) = (*(x) << (shift)))

#define pq_64bit_set_bit(x, num)          do { \

                                              PQ_64BIT mask = 1; \

                                              mask = mask << (num); \

                                              *(x) |= mask; \

                                          } while(0)

#endif /* OPENSSL_SYS_VMS */