remove sha256.cpp/h files.

It used only in manaserv, and manaserv for now not supported.

1 files changed, 0 insertions, 299 deletions

diff --git a/src/utils/sha256.cpp b/src/utils/sha256.cpp
deleted file mode 100644
index 79ec25154..000000000
--- a/src/utils/sha256.cpp
+++ /dev/null
@@ -1,299 +0,0 @@
-/*
- *  The ManaPlus Client
- *  Copyright (C) 2008-2009  The Mana World Development Team
- *  Copyright (C) 2009-2010  The Mana Developers
- *  Copyright (C) 2011-2013  The ManaPlus Developers
- *
- *  This file has been slighly modified as part of The ManaPlus Client.
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2, as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
- *
- *  InspIRCd: (C) 2002-2008 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
- *
- * This program is free but copyrighted software; see
- *            the file COPYING for details.
- *
- * ---------------------------------------------------
- */
-
-/* m_sha256 - Based on m_opersha256 written by Special <john@yarbbles.com>
- * Modified and improved by Craig Edwards, December 2006.
- *
- *
- * FIPS 180-2 SHA-224/256/384/512 implementation
- * Last update: 05/23/2005
- * Issue date:  04/30/2005
- *
- * Copyright (C) 2005 Olivier Gay <olivier.gay@a3.epfl.ch>
- * 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. Neither the name of the project nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``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 PROJECT 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.
- */
-
-#include "utils/sha256.h"
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <memory.h>
-
-#ifdef HAVE_STDINT_H
-#include <stdint.h>
-#else
-typedef unsigned char uint8_t;
-typedef unsigned int uint32_t;
-#endif
-
-#include "debug.h"
-
-static const unsigned int SHA256_BLOCK_SIZE = (512 / 8);
-
-/** An sha 256 context, used by original m_opersha256 */
-class SHA256Context final
-{
-    public:
-        unsigned int tot_len;
-        unsigned int len;
-        unsigned char block[2 * SHA256_BLOCK_SIZE];
-        uint32_t h[8];
-};
-
-static const unsigned int SHA256_DIGEST_SIZE = (256 / 8);
-
-#define SHFR(x, n)    (x >> n)
-#define ROTR(x, n)   ((x >> n) | (x << ((sizeof(x) << 3) - n)))
-//#define ROTL(x, n)   ((x << n) | (x >> ((sizeof(x) << 3) - n)))
-#define CH(x, y, z)  ((x & y) ^ (~x & z))
-#define MAJ(x, y, z) ((x & y) ^ (x & z) ^ (y & z))
-
-#define SHA256_F1(x) (ROTR(x,  2) ^ ROTR(x, 13) ^ ROTR(x, 22))
-#define SHA256_F2(x) (ROTR(x,  6) ^ ROTR(x, 11) ^ ROTR(x, 25))
-#define SHA256_F3(x) (ROTR(x,  7) ^ ROTR(x, 18) ^ SHFR(x,  3))
-#define SHA256_F4(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ SHFR(x, 10))
-
-#define UNPACK32(x, str)               \
-{                     \
-    *((str) + 3) = static_cast<uint8_t> ((x)      );      \
-    *((str) + 2) = static_cast<uint8_t> ((x) >>  8);      \
-    *((str) + 1) = static_cast<uint8_t> ((x) >> 16);      \
-    *((str) + 0) = static_cast<uint8_t> ((x) >> 24);      \
-}
-
-#define PACK32(str, x)           \
-{                         \
-    *(x) = ((uint32_t) *((str) + 3)      )     \
-    | ((uint32_t) *((str) + 2) <<  8)     \
-    | ((uint32_t) *((str) + 1) << 16)     \
-    | ((uint32_t) *((str) + 0) << 24);    \
-}
-
-/* Macros used for loops unrolling */
-
-#define SHA256_SCR(i)         \
-{                         \
-    w[i] =  SHA256_F4(w[i - 2]) + w[i - 7]     \
-    + SHA256_F3(w[i - 15]) + w[i - 16];  \
-}
-
-const unsigned int sha256_h0[8] =
-{
-    0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
-    0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19
-};
-
-uint32_t sha256_k[64] =
-{
-    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
-    0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
-    0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
-    0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
-    0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
-    0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
-    0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
-    0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
-    0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
-    0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
-    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
-    0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
-    0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
-    0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
-    0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
-    0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
-};
-
-void SHA256Init(SHA256Context *ctx);
-
-void SHA256Transform(SHA256Context *ctx,
-                     unsigned char *message,
-                     unsigned int block_nb);
-
-void SHA256Update(SHA256Context *ctx,
-                  unsigned char *message,
-                  unsigned int len);
-
-void SHA256Final(SHA256Context *ctx, unsigned char *digest);
-
-std::string SHA256Hash(const char *src, int len);
-
-void SHA256Init(SHA256Context *ctx)
-{
-    for (int i = 0; i < 8; i++)
-        ctx->h[i] = sha256_h0[i];
-    ctx->len = 0;
-    ctx->tot_len = 0;
-}
-
-void SHA256Transform(SHA256Context *ctx,
-                     unsigned char *message,
-                     unsigned int block_nb)
-{
-    uint32_t w[64];
-    uint32_t wv[8];
-    unsigned char *sub_block;
-    for (unsigned int i = 1; i <= block_nb; i++)
-    {
-        int j;
-        sub_block = message + ((i - 1) << 6);
-
-        for (j = 0; j < 16; j++)
-            PACK32(&sub_block[j << 2], &w[j]);
-        for (j = 16; j < 64; j++)
-            SHA256_SCR(j);
-        for (j = 0; j < 8; j++)
-            wv[j] = ctx->h[j];
-        for (j = 0; j < 64; j++)
-        {
-            uint32_t t1 = wv[7] + SHA256_F2(wv[4]) + CH(wv[4],
-                wv[5], wv[6]) + sha256_k[j] + w[j];
-            uint32_t t2 = SHA256_F1(wv[0]) + MAJ(wv[0], wv[1], wv[2]);
-            wv[7] = wv[6];
-            wv[6] = wv[5];
-            wv[5] = wv[4];
-            wv[4] = wv[3] + t1;
-            wv[3] = wv[2];
-            wv[2] = wv[1];
-            wv[1] = wv[0];
-            wv[0] = t1 + t2;
-        }
-        for (j = 0; j < 8; j++)
-            ctx->h[j] += wv[j];
-    }
-}
-
-void SHA256Update(SHA256Context *ctx,
-                  unsigned char *message,
-                  unsigned int len)
-{
-    /*
-    * XXX here be dragons!
-    * After many hours of pouring over this, I think I've found the problem.
-    * When Special created our module from the reference one, he used:
-    *
-    *     unsigned int rem_len = SHA256_BLOCK_SIZE - ctx->len;
-    *
-    * instead of the reference's version of:
-    *
-    *     unsigned int tmp_len = SHA256_BLOCK_SIZE - ctx->len;
-    *     unsigned int rem_len = len < tmp_len ? len : tmp_len;
-    *
-    * I've changed back to the reference version of this code, and it seems to work with no errors.
-    * So I'm inclined to believe this was the problem..
-    *             -- w00t (January 06, 2008)
-    */
-    unsigned int tmp_len = SHA256_BLOCK_SIZE - ctx->len;
-    unsigned int rem_len = len < tmp_len ? len : tmp_len;
-
-    memcpy(&ctx->block[ctx->len], message, rem_len);
-    if (ctx->len + len < SHA256_BLOCK_SIZE)
-    {
-        ctx->len += len;
-        return;
-    }
-    unsigned int new_len = len - rem_len;
-    unsigned int block_nb = new_len / SHA256_BLOCK_SIZE;
-    unsigned char *shifted_message = message + rem_len;
-    SHA256Transform(ctx, ctx->block, 1);
-    SHA256Transform(ctx, shifted_message, block_nb);
-    rem_len = new_len % SHA256_BLOCK_SIZE;
-    memcpy(ctx->block, &shifted_message[block_nb << 6], rem_len);
-    ctx->len = rem_len;
-    ctx->tot_len += (block_nb + 1) << 6;
-}
-
-void SHA256Final(SHA256Context *ctx, unsigned char *digest)
-{
-    unsigned int block_nb = (1 + ((SHA256_BLOCK_SIZE - 9)
-        < (ctx->len % SHA256_BLOCK_SIZE)));
-    unsigned int len_b = (ctx->tot_len + ctx->len) << 3;
-    unsigned int pm_len = block_nb << 6;
-    memset(ctx->block + ctx->len, 0, pm_len - ctx->len);
-    ctx->block[ctx->len] = 0x80;
-    UNPACK32(len_b, ctx->block + pm_len - 4);
-    SHA256Transform(ctx, ctx->block, block_nb);
-    for (int i = 0 ; i < 8; i++)
-        UNPACK32(ctx->h[i], &digest[i << 2]);
-}
-
-std::string SHA256Hash(const char *src, int len)
-{
-    // Generate the hash
-    unsigned char bytehash[SHA256_DIGEST_SIZE];
-    SHA256Context ctx;
-    SHA256Init(&ctx);
-    SHA256Update(&ctx, static_cast<unsigned char *>(src),
-        static_cast<unsigned int>(len));
-    SHA256Final(&ctx, bytehash);
-    // Convert it to hex
-    const char* hxc = "0123456789abcdef";
-    std::string hash("");
-    for (int i = 0; i < SHA256_DIGEST_SIZE; i++)
-    {
-        hash += hxc[bytehash[i] / 16];
-        hash += hxc[bytehash[i] % 16];
-    }
-    return hash;
-}
-
-std::string sha256(const std::string &string)
-{
-    return SHA256Hash(string.c_str(), static_cast<int>(string.length()));
-}