ref: ca70040abf8d8ab2cb03575f65131ad8ef8f12a1
dir: /third_party/boringssl/src/decrepit/macros.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 OPENSSL_HEADER_DECREPIT_MACROS_H
#define OPENSSL_HEADER_DECREPIT_MACROS_H
#include "../crypto/internal.h"
// NOTE - c is not incremented as per n2l
#define n2ln(c, l1, l2, n) \
{ \
c += n; \
l1 = l2 = 0; \
switch (n) { \
case 8: \
l2 = ((unsigned long)(*(--(c)))); \
OPENSSL_FALLTHROUGH; \
case 7: \
l2 |= ((unsigned long)(*(--(c)))) << 8; \
OPENSSL_FALLTHROUGH; \
case 6: \
l2 |= ((unsigned long)(*(--(c)))) << 16; \
OPENSSL_FALLTHROUGH; \
case 5: \
l2 |= ((unsigned long)(*(--(c)))) << 24; \
OPENSSL_FALLTHROUGH; \
case 4: \
l1 = ((unsigned long)(*(--(c)))); \
OPENSSL_FALLTHROUGH; \
case 3: \
l1 |= ((unsigned long)(*(--(c)))) << 8; \
OPENSSL_FALLTHROUGH; \
case 2: \
l1 |= ((unsigned long)(*(--(c)))) << 16; \
OPENSSL_FALLTHROUGH; \
case 1: \
l1 |= ((unsigned long)(*(--(c)))) << 24; \
} \
}
// NOTE - c is not incremented as per l2n
#define l2nn(l1, l2, c, n) \
{ \
c += n; \
switch (n) { \
case 8: \
*(--(c)) = (unsigned char)(((l2)) & 0xff); \
OPENSSL_FALLTHROUGH; \
case 7: \
*(--(c)) = (unsigned char)(((l2) >> 8) & 0xff); \
OPENSSL_FALLTHROUGH; \
case 6: \
*(--(c)) = (unsigned char)(((l2) >> 16) & 0xff); \
OPENSSL_FALLTHROUGH; \
case 5: \
*(--(c)) = (unsigned char)(((l2) >> 24) & 0xff); \
OPENSSL_FALLTHROUGH; \
case 4: \
*(--(c)) = (unsigned char)(((l1)) & 0xff); \
OPENSSL_FALLTHROUGH; \
case 3: \
*(--(c)) = (unsigned char)(((l1) >> 8) & 0xff); \
OPENSSL_FALLTHROUGH; \
case 2: \
*(--(c)) = (unsigned char)(((l1) >> 16) & 0xff); \
OPENSSL_FALLTHROUGH; \
case 1: \
*(--(c)) = (unsigned char)(((l1) >> 24) & 0xff); \
} \
}
#define l2n(l, c) \
(*((c)++) = (unsigned char)(((l) >> 24L) & 0xff), \
*((c)++) = (unsigned char)(((l) >> 16L) & 0xff), \
*((c)++) = (unsigned char)(((l) >> 8L) & 0xff), \
*((c)++) = (unsigned char)(((l)) & 0xff))
#define n2l(c, l) \
(l = ((unsigned long)(*((c)++))) << 24L, \
l |= ((unsigned long)(*((c)++))) << 16L, \
l |= ((unsigned long)(*((c)++))) << 8L, \
l |= ((unsigned long)(*((c)++))))
#endif // OPENSSL_HEADER_DECREPIT_MACROS_H