1/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
2 * All rights reserved.
3 *
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
7 *
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to.  The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
14 *
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
21 *
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
24 * are met:
25 * 1. Redistributions of source code must retain the copyright
26 *    notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 *    notice, this list of conditions and the following disclaimer in the
29 *    documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 *    must display the following acknowledgement:
32 *    "This product includes cryptographic software written by
33 *     Eric Young (eay@cryptsoft.com)"
34 *    The word 'cryptographic' can be left out if the rouines from the library
35 *    being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 *    the apps directory (application code) you must include an acknowledgement:
38 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 * SUCH DAMAGE.
51 *
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed.  i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.] */
56
57#ifndef OPENSSL_HEADER_DECREPIT_MACROS_H
58#define OPENSSL_HEADER_DECREPIT_MACROS_H
59
60#include "../crypto/internal.h"
61
62
63// NOTE - c is not incremented as per n2l
64#define n2ln(c, l1, l2, n)                       \
65  {                                              \
66    c += n;                                      \
67    l1 = l2 = 0;                                 \
68    switch (n) {                                 \
69      case 8:                                    \
70        l2 = ((unsigned long)(*(--(c))));        \
71	OPENSSL_FALLTHROUGH;                     \
72      case 7:                                    \
73        l2 |= ((unsigned long)(*(--(c)))) << 8;  \
74	OPENSSL_FALLTHROUGH;                     \
75      case 6:                                    \
76        l2 |= ((unsigned long)(*(--(c)))) << 16; \
77	OPENSSL_FALLTHROUGH;                     \
78      case 5:                                    \
79        l2 |= ((unsigned long)(*(--(c)))) << 24; \
80	OPENSSL_FALLTHROUGH;                     \
81      case 4:                                    \
82        l1 = ((unsigned long)(*(--(c))));        \
83	OPENSSL_FALLTHROUGH;                     \
84      case 3:                                    \
85        l1 |= ((unsigned long)(*(--(c)))) << 8;  \
86	OPENSSL_FALLTHROUGH;                     \
87      case 2:                                    \
88        l1 |= ((unsigned long)(*(--(c)))) << 16; \
89	OPENSSL_FALLTHROUGH;                     \
90      case 1:                                    \
91        l1 |= ((unsigned long)(*(--(c)))) << 24; \
92    }                                            \
93  }
94
95// NOTE - c is not incremented as per l2n
96#define l2nn(l1, l2, c, n)                               \
97  {                                                      \
98    c += n;                                              \
99    switch (n) {                                         \
100      case 8:                                            \
101        *(--(c)) = (unsigned char)(((l2)) & 0xff);       \
102	OPENSSL_FALLTHROUGH;                             \
103      case 7:                                            \
104        *(--(c)) = (unsigned char)(((l2) >> 8) & 0xff);  \
105	OPENSSL_FALLTHROUGH;                             \
106      case 6:                                            \
107        *(--(c)) = (unsigned char)(((l2) >> 16) & 0xff); \
108	OPENSSL_FALLTHROUGH;                             \
109      case 5:                                            \
110        *(--(c)) = (unsigned char)(((l2) >> 24) & 0xff); \
111	OPENSSL_FALLTHROUGH;                             \
112      case 4:                                            \
113        *(--(c)) = (unsigned char)(((l1)) & 0xff);       \
114	OPENSSL_FALLTHROUGH;                             \
115      case 3:                                            \
116        *(--(c)) = (unsigned char)(((l1) >> 8) & 0xff);  \
117	OPENSSL_FALLTHROUGH;                             \
118      case 2:                                            \
119        *(--(c)) = (unsigned char)(((l1) >> 16) & 0xff); \
120	OPENSSL_FALLTHROUGH;                             \
121      case 1:                                            \
122        *(--(c)) = (unsigned char)(((l1) >> 24) & 0xff); \
123    }                                                    \
124  }
125
126#define l2n(l, c)                                   \
127  (*((c)++) = (unsigned char)(((l) >> 24L) & 0xff), \
128   *((c)++) = (unsigned char)(((l) >> 16L) & 0xff), \
129   *((c)++) = (unsigned char)(((l) >> 8L) & 0xff),  \
130   *((c)++) = (unsigned char)(((l)) & 0xff))
131
132#define n2l(c, l)                           \
133  (l = ((unsigned long)(*((c)++))) << 24L,  \
134   l |= ((unsigned long)(*((c)++))) << 16L, \
135   l |= ((unsigned long)(*((c)++))) << 8L,  \
136   l |= ((unsigned long)(*((c)++))))
137
138
139#endif  // OPENSSL_HEADER_DECREPIT_MACROS_H
140