Move base to DEPS

base/md5.cc

Index: base/md5.cc
diff --git a/base/md5.cc b/base/md5.cc
deleted file mode 100644
index 72c774d35546ae0fa4c5798174a95861d5460eaf..0000000000000000000000000000000000000000
--- a/base/md5.cc
+++ /dev/null
@@ -1,299 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// The original file was copied from sqlite, and was in the public domain.
-
-/*
- * This code implements the MD5 message-digest algorithm.
- * The algorithm is due to Ron Rivest.  This code was
- * written by Colin Plumb in 1993, no copyright is claimed.
- * This code is in the public domain; do with it what you wish.
- *
- * Equivalent code is available from RSA Data Security, Inc.
- * This code has been tested against that, and is equivalent,
- * except that you don't need to include two pages of legalese
- * with every copy.
- *
- * To compute the message digest of a chunk of bytes, declare an
- * MD5Context structure, pass it to MD5Init, call MD5Update as
- * needed on buffers full of bytes, and then call MD5Final, which
- * will fill a supplied 16-byte array with the digest.
- */
-
-#include "base/md5.h"
-
-#include <stddef.h>
-
-namespace {
-
-struct Context {
-  uint32_t buf[4];
-  uint32_t bits[2];
-  uint8_t in[64];
-};
-
-/*
- * Note: this code is harmless on little-endian machines.
- */
-void byteReverse(uint8_t* buf, unsigned longs) {
-  do {
-    uint32_t temp = static_cast<uint32_t>(
-        static_cast<unsigned>(buf[3]) << 8 |
-        buf[2]) << 16 |
-        (static_cast<unsigned>(buf[1]) << 8 | buf[0]);
-    *reinterpret_cast<uint32_t*>(buf) = temp;
-    buf += 4;
-  } while (--longs);
-}
-
-/* The four core functions - F1 is optimized somewhat */
-
-/* #define F1(x, y, z) (x & y | ~x & z) */
-#define F1(x, y, z) (z ^ (x & (y ^ z)))
-#define F2(x, y, z) F1(z, x, y)
-#define F3(x, y, z) (x ^ y ^ z)
-#define F4(x, y, z) (y ^ (x | ~z))
-
-/* This is the central step in the MD5 algorithm. */
-#define MD5STEP(f, w, x, y, z, data, s) \
-  (w += f(x, y, z) + data, w = w << s | w >> (32 - s), w += x)
-
-/*
- * The core of the MD5 algorithm, this alters an existing MD5 hash to
- * reflect the addition of 16 longwords of new data.  MD5Update blocks
- * the data and converts bytes into longwords for this routine.
- */
-void MD5Transform(uint32_t buf[4], const uint32_t in[16]) {
-  uint32_t a, b, c, d;
-
-  a = buf[0];
-  b = buf[1];
-  c = buf[2];
-  d = buf[3];
-
-  MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
-  MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
-  MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
-  MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
-  MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
-  MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
-  MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
-  MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
-  MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
-  MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
-  MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
-  MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
-  MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
-  MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
-  MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
-  MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
-
-  MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
-  MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
-  MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
-  MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
-  MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
-  MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
-  MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
-  MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
-  MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
-  MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
-  MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
-  MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
-  MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
-  MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
-  MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
-  MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
-
-  MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
-  MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
-  MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
-  MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
-  MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
-  MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
-  MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
-  MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
-  MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
-  MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
-  MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
-  MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
-  MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
-  MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
-  MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
-  MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
-
-  MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
-  MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
-  MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
-  MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
-  MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
-  MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
-  MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
-  MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
-  MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
-  MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
-  MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
-  MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
-  MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
-  MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
-  MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
-  MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
-
-  buf[0] += a;
-  buf[1] += b;
-  buf[2] += c;
-  buf[3] += d;
-}
-
-}  // namespace
-
-namespace base {
-
-/*
- * Start MD5 accumulation.  Set bit count to 0 and buffer to mysterious
- * initialization constants.
- */
-void MD5Init(MD5Context* context) {
-  struct Context* ctx = reinterpret_cast<struct Context*>(context);
-  ctx->buf[0] = 0x67452301;
-  ctx->buf[1] = 0xefcdab89;
-  ctx->buf[2] = 0x98badcfe;
-  ctx->buf[3] = 0x10325476;
-  ctx->bits[0] = 0;
-  ctx->bits[1] = 0;
-}
-
-/*
- * Update context to reflect the concatenation of another buffer full
- * of bytes.
- */
-void MD5Update(MD5Context* context, const StringPiece& data) {
-  struct Context* ctx = reinterpret_cast<struct Context*>(context);
-  const uint8_t* buf = reinterpret_cast<const uint8_t*>(data.data());
-  size_t len = data.size();
-
-  /* Update bitcount */
-
-  uint32_t t = ctx->bits[0];
-  if ((ctx->bits[0] = t + (static_cast<uint32_t>(len) << 3)) < t)
-    ctx->bits[1]++; /* Carry from low to high */
-  ctx->bits[1] += static_cast<uint32_t>(len >> 29);
-
-  t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */
-
-  /* Handle any leading odd-sized chunks */
-
-  if (t) {
-    uint8_t* p = static_cast<uint8_t*>(ctx->in + t);
-
-    t = 64 - t;
-    if (len < t) {
-      memcpy(p, buf, len);
-      return;
-    }
-    memcpy(p, buf, t);
-    byteReverse(ctx->in, 16);
-    MD5Transform(ctx->buf, reinterpret_cast<uint32_t*>(ctx->in));
-    buf += t;
-    len -= t;
-  }
-
-  /* Process data in 64-byte chunks */
-
-  while (len >= 64) {
-    memcpy(ctx->in, buf, 64);
-    byteReverse(ctx->in, 16);
-    MD5Transform(ctx->buf, reinterpret_cast<uint32_t*>(ctx->in));
-    buf += 64;
-    len -= 64;
-  }
-
-  /* Handle any remaining bytes of data. */
-
-  memcpy(ctx->in, buf, len);
-}
-
-/*
- * Final wrapup - pad to 64-byte boundary with the bit pattern
- * 1 0* (64-bit count of bits processed, MSB-first)
- */
-void MD5Final(MD5Digest* digest, MD5Context* context) {
-  struct Context* ctx = reinterpret_cast<struct Context*>(context);
-  unsigned count;
-  uint8_t* p;
-
-  /* Compute number of bytes mod 64 */
-  count = (ctx->bits[0] >> 3) & 0x3F;
-
-  /* Set the first char of padding to 0x80.  This is safe since there is
-     always at least one byte free */
-  p = ctx->in + count;
-  *p++ = 0x80;
-
-  /* Bytes of padding needed to make 64 bytes */
-  count = 64 - 1 - count;
-
-  /* Pad out to 56 mod 64 */
-  if (count < 8) {
-    /* Two lots of padding:  Pad the first block to 64 bytes */
-    memset(p, 0, count);
-    byteReverse(ctx->in, 16);
-    MD5Transform(ctx->buf, reinterpret_cast<uint32_t*>(ctx->in));
-
-    /* Now fill the next block with 56 bytes */
-    memset(ctx->in, 0, 56);
-  } else {
-    /* Pad block to 56 bytes */
-    memset(p, 0, count - 8);
-  }
-  byteReverse(ctx->in, 14);
-
-  /* Append length in bits and transform */
-  memcpy(&ctx->in[14 * sizeof(ctx->bits[0])], &ctx->bits[0],
-         sizeof(ctx->bits[0]));
-  memcpy(&ctx->in[15 * sizeof(ctx->bits[1])], &ctx->bits[1],
-         sizeof(ctx->bits[1]));
-
-  MD5Transform(ctx->buf, reinterpret_cast<uint32_t*>(ctx->in));
-  byteReverse(reinterpret_cast<uint8_t*>(ctx->buf), 4);
-  memcpy(digest->a, ctx->buf, 16);
-  memset(ctx, 0, sizeof(*ctx)); /* In case it's sensitive */
-}
-
-void MD5IntermediateFinal(MD5Digest* digest, const MD5Context* context) {
-  /* MD5Final mutates the MD5Context*. Make a copy for generating the
-     intermediate value. */
-  MD5Context context_copy;
-  memcpy(&context_copy, context, sizeof(context_copy));
-  MD5Final(digest, &context_copy);
-}
-
-std::string MD5DigestToBase16(const MD5Digest& digest) {
-  static char const zEncode[] = "0123456789abcdef";
-
-  std::string ret;
-  ret.resize(32);
-
-  for (int i = 0, j = 0; i < 16; i++, j += 2) {
-    uint8_t a = digest.a[i];
-    ret[j] = zEncode[(a >> 4) & 0xf];
-    ret[j + 1] = zEncode[a & 0xf];
-  }
-  return ret;
-}
-
-void MD5Sum(const void* data, size_t length, MD5Digest* digest) {
-  MD5Context ctx;
-  MD5Init(&ctx);
-  MD5Update(&ctx, StringPiece(reinterpret_cast<const char*>(data), length));
-  MD5Final(digest, &ctx);
-}
-
-std::string MD5String(const StringPiece& str) {
-  MD5Digest digest;
-  MD5Sum(str.data(), str.length(), &digest);
-  return MD5DigestToBase16(digest);
-}
-
-}  // namespace base