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/* 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).
*
*/
#ifndef HEADER_PQ_COMPAT_H
#define HEADER_PQ_COMPAT_H
#include <openssl/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 */
#endif
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