1 files changed, 0 insertions, 201 deletions

diff --git a/src/util/crypto_crc.c b/src/util/crypto_crc.c
deleted file mode 100644
index 804d3eba8..000000000
--- a/src/util/crypto_crc.c
+++ /dev/null
@@ -1,201 +0,0 @@
-/*
-     This file is part of GNUnet.
-     Copyright (C) 2001, 2002, 2003, 2004, 2006 GNUnet e.V.
-
-     GNUnet is free software: you can redistribute it and/or modify it
-     under the terms of the GNU Affero General Public License as published
-     by the Free Software Foundation, either version 3 of the License,
-     or (at your option) any later version.
-
-     GNUnet 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
-     Affero General Public License for more details.
-
-     You should have received a copy of the GNU Affero General Public License
-     along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-     SPDX-License-Identifier: AGPL3.0-or-later
-
-     For the actual CRC-32 code:
-     Copyright abandoned; this code is in the public domain.
-     Provided to GNUnet by peter@horizon.com
- */
-
-/**
- * @file util/crypto_crc.c
- * @brief implementation of CRC16 and CRC32
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include "gnunet_crypto_lib.h"
-
-#define LOG(kind, ...) GNUNET_log_from (kind, "util-crypto-crc", __VA_ARGS__)
-
-/* Avoid wasting space on 8-byte longs. */
-#if UINT_MAX >= 0xffffffff
-typedef unsigned int GNUNET_uLong;
-#elif ULONG_MAX >= 0xffffffff
-typedef unsigned long GNUNET_uLong;
-#else
-#error This compiler is not ANSI-compliant!
-#endif
-
-#define Z_NULL  0
-
-
-#define POLYNOMIAL (GNUNET_uLong) 0xedb88320
-static GNUNET_uLong crc_table[256];
-
-/*
- * This routine writes each crc_table entry exactly once,
- * with the correct final value.  Thus, it is safe to call
- * even on a table that someone else is using concurrently.
- */
-static void
-crc_init ()
-{
-  static int once;
-  unsigned int i, j;
-  GNUNET_uLong h = 1;
-
-  if (once)
-    return;
-  once = 1;
-  crc_table[0] = 0;
-  for (i = 128; i; i >>= 1)
-  {
-    h = (h >> 1) ^ ((h & 1) ? POLYNOMIAL : 0);
-    /* h is now crc_table[i] */
-    for (j = 0; j < 256; j += 2 * i)
-      crc_table[i + j] = crc_table[j] ^ h;
-  }
-}
-
-
-/*
- * This computes the standard preset and inverted CRC, as used
- * by most networking standards.  Start by passing in an initial
- * chaining value of 0, and then pass in the return value from the
- * previous crc32() call.  The final return value is the CRC.
- * Note that this is a little-endian CRC, which is best used with
- * data transmitted lsbit-first, and it should, itself, be appended
- * to data in little-endian byte and bit order to preserve the
- * property of detecting all burst errors of length 32 bits or less.
- */
-static GNUNET_uLong
-crc32 (GNUNET_uLong crc, const char *buf, size_t len)
-{
-  crc_init ();
-  GNUNET_assert (crc_table[255] != 0);
-  crc ^= 0xffffffff;
-  while (len--)
-    crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff];
-  return crc ^ 0xffffffff;
-}
-
-
-/**
- * Compute the CRC32 checksum for the first len bytes of the buffer.
- *
- * @param buf the data over which we're taking the CRC
- * @param len the length of the buffer
- * @return the resulting CRC32 checksum
- */
-int32_t
-GNUNET_CRYPTO_crc32_n (const void *buf, size_t len)
-{
-  GNUNET_uLong crc;
-
-  crc = crc32 (0L, Z_NULL, 0);
-  crc = crc32 (crc, (char *) buf, len);
-  return crc;
-}
-
-
-/**
- * Perform an incremental step in a CRC16 (for TCP/IP) calculation.
- *
- * @param sum current sum, initially 0
- * @param buf buffer to calculate CRC over (must be 16-bit aligned)
- * @param len number of bytes in hdr, must be multiple of 2
- * @return updated crc sum (must be subjected to #GNUNET_CRYPTO_crc16_finish() to get actual crc16)
- */
-uint32_t
-GNUNET_CRYPTO_crc16_step (uint32_t sum, const void *buf, size_t len)
-{
-  const uint16_t *hdr = buf;
-
-  for (; len >= 2; len -= 2)
-    sum += *(hdr++);
-  if (len == 1)
-    sum += (*hdr) & ntohs (0xFF00);
-  return sum;
-}
-
-
-/**
- * Convert results from #GNUNET_CRYPTO_crc16_step() to final crc16.
- *
- * @param sum cumulative sum
- * @return crc16 value
- */
-uint16_t
-GNUNET_CRYPTO_crc16_finish (uint32_t sum)
-{
-  sum = (sum >> 16) + (sum & 0xFFFF);
-  sum += (sum >> 16);
-
-  return ~sum;
-}
-
-
-/**
- * Calculate the checksum of a buffer in one step.
- *
- * @param buf buffer to  calculate CRC over (must be 16-bit aligned)
- * @param len number of bytes in hdr, must be multiple of 2
- * @return crc16 value
- */
-uint16_t
-GNUNET_CRYPTO_crc16_n (const void *buf, size_t len)
-{
-  const uint16_t *hdr = buf;
-  uint32_t sum = GNUNET_CRYPTO_crc16_step (0, hdr, len);
-
-  return GNUNET_CRYPTO_crc16_finish (sum);
-}
-
-
-/**
- * @ingroup hash
- * Calculate the checksum of a buffer in one step.
- *
- * @param buf buffer to calculate CRC over
- * @param len number of bytes in @a buf
- * @return crc8 value
- */
-uint8_t
-GNUNET_CRYPTO_crc8_n (const void *buf,
-                      size_t len)
-{
-  const uint8_t *data = buf;
-  unsigned int crc = 0;
-  int i;
-  int j;
-
-  for (j = len; 0 != j; j--)
-  {
-    crc ^= (*data++ << 8);
-    for (i = 8; 0 != i; i--)
-    {
-      if (0 != (crc & 0x8000))
-        crc ^= (0x1070 << 3);
-      crc <<= 1;
-    }
-  }
-  return (uint8_t) (crc >> 8);
-}
-
-
-/* end of crypto_crc.c */