Remove openssl_bio_string.

crypto/openssl_bio_string.cc

-// Copyright 2014 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.
-
-#include "crypto/openssl_bio_string.h"
-
-#include <openssl/bio.h>
-#include <string.h>
-
-namespace crypto {
-
-namespace {
-
-int bio_string_write(BIO* bio, const char* data, int len) {
-  reinterpret_cast<std::string*>(bio->ptr)->append(data, len);
-  return len;
-}
-
-int bio_string_puts(BIO* bio, const char* data) {
-  // Note: unlike puts(), BIO_puts does not add a newline.
-  return bio_string_write(bio, data, strlen(data));
-}
-
-long bio_string_ctrl(BIO* bio, int cmd, long num, void* ptr) {
-  std::string* str = reinterpret_cast<std::string*>(bio->ptr);
-  switch (cmd) {
-    case BIO_CTRL_RESET:
-      str->clear();
-      return 1;
-    case BIO_C_FILE_SEEK:
-      return -1;
-    case BIO_C_FILE_TELL:
-      return str->size();
-    case BIO_CTRL_FLUSH:
-      return 1;
-    default:
-      return 0;
-  }
-}
-
-int bio_string_new(BIO* bio) {
-  bio->ptr = NULL;
-  bio->init = 0;
-  return 1;
-}
-
-int bio_string_free(BIO* bio) {
-  // The string is owned by the caller, so there's nothing to do here.
-  return bio != NULL;
-}
-
-BIO_METHOD bio_string_methods = {
-    // TODO(mattm): Should add some type number too? (bio.h uses 1-24)
-    BIO_TYPE_SOURCE_SINK,
-    "bio_string",
-    bio_string_write,
-    NULL, /* read */
-    bio_string_puts,
-    NULL, /* gets */
-    bio_string_ctrl,
-    bio_string_new,
-    bio_string_free,
-    NULL, /* callback_ctrl */
-};
-
-}  // namespace
-
-BIO* BIO_new_string(std::string* out) {
-  BIO* bio = BIO_new(&bio_string_methods);
-  if (!bio)
-    return bio;
-  bio->ptr = out;
-  bio->init = 1;
-  return bio;
-}
-
-}  // namespace crypto