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// 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.

#include "net/base/net_errors.h"

#include <errno.h>

#include "base/logging.h"

namespace net {

Error MapSystemError(int os_error) {
  // There are numerous posix error codes, but these are the ones we thus far
  // find interesting.
  switch (os_error) {
    case EAGAIN:
#if EWOULDBLOCK != EAGAIN
    case EWOULDBLOCK:
#endif
      return ERR_IO_PENDING;
    case EACCES:
      return ERR_ACCESS_DENIED;
    case ENETDOWN:
      return ERR_INTERNET_DISCONNECTED;
    case ETIMEDOUT:
      return ERR_TIMED_OUT;
    case ECONNRESET:
    case ENETRESET:  // Related to keep-alive
    case EPIPE:
      return ERR_CONNECTION_RESET;
    case ECONNABORTED:
      return ERR_CONNECTION_ABORTED;
    case ECONNREFUSED:
      return ERR_CONNECTION_REFUSED;
    case EHOSTUNREACH:
    case EHOSTDOWN:
    case ENETUNREACH:
    case EAFNOSUPPORT:
      return ERR_ADDRESS_UNREACHABLE;
    case EADDRNOTAVAIL:
      return ERR_ADDRESS_INVALID;
    case EMSGSIZE:
      return ERR_MSG_TOO_BIG;
    case ENOTCONN:
      return ERR_SOCKET_NOT_CONNECTED;
    case EINVAL:
      return ERR_INVALID_ARGUMENT;
    case 0:
      return OK;
    default:
      LOG(WARNING) << "Unknown error " << os_error
                   << " mapped to net::ERR_FAILED";
      return ERR_FAILED;
  }
}

}  // namespace net