/*
 * Deskflow -- mouse and keyboard sharing utility
 * Copyright (C) 2012-2016 Symless Ltd.
 * Copyright (C) 2002 Chris Schoeneman
 *
 * This package is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * found in the file LICENSE that should have accompanied this file.
 *
 * This package 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/>.
 */

#include "arch/win32/XArchWindows.h"
#include "arch/win32/ArchNetworkWinsock.h"
#include "base/String.h"

//
// XArchEvalWindows
//

std::string XArchEvalWindows::eval() const throw()
{
  char *cmsg;
  if (FormatMessage(
          FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_SYSTEM, 0, m_error,
          MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR)&cmsg, 0, NULL
      ) == 0) {
    cmsg = NULL;
    return deskflow::string::sprintf("Unknown error, code %d", m_error);
  }
  std::string smsg(cmsg);
  LocalFree(cmsg);
  return smsg;
}

//
// XArchEvalWinsock
//

std::string XArchEvalWinsock::eval() const throw()
{
  // built-in windows function for looking up error message strings
  // may not look up network error messages correctly.  we'll have
  // to do it ourself.
  static const struct
  {
    int m_code;
    const char *m_msg;
  } s_netErrorCodes[] = {
      /* 10004 */ {WSAEINTR, "The (blocking) call was canceled via WSACancelBlockingCall"},
      /* 10009 */ {WSAEBADF, "Bad file handle"},
      /* 10013 */
      {WSAEACCES, "The requested address is a broadcast address, but the "
                  "appropriate flag was not set"},
      /* 10014 */ {WSAEFAULT, "WSAEFAULT"},
      /* 10022 */ {WSAEINVAL, "WSAEINVAL"},
      /* 10024 */ {WSAEMFILE, "No more file descriptors available"},
      /* 10035 */
      {WSAEWOULDBLOCK, "Socket is marked as non-blocking and no connections "
                       "are present or the receive operation would block"},
      /* 10036 */
      {WSAEINPROGRESS, "A blocking Windows Sockets operation is in progress"},
      /* 10037 */
      {WSAEALREADY, "The asynchronous routine being canceled has already completed"},
      /* 10038 */ {WSAENOTSOCK, "At least on descriptor is not a socket"},
      /* 10039 */ {WSAEDESTADDRREQ, "A destination address is required"},
      /* 10040 */
      {WSAEMSGSIZE, "The datagram was too large to fit into the specified "
                    "buffer and was truncated"},
      /* 10041 */
      {WSAEPROTOTYPE, "The specified protocol is the wrong type for this socket"},
      /* 10042 */ {WSAENOPROTOOPT, "The option is unknown or unsupported"},
      /* 10043 */
      {WSAEPROTONOSUPPORT, "The specified protocol is not supported"},
      /* 10044 */
      {WSAESOCKTNOSUPPORT, "The specified socket type is not supported by this address family"},
      /* 10045 */
      {WSAEOPNOTSUPP, "The referenced socket is not a type that supports that operation"},
      /* 10046 */ {WSAEPFNOSUPPORT, "BSD: Protocol family not supported"},
      /* 10047 */
      {WSAEAFNOSUPPORT, "The specified address family is not supported"},
      /* 10048 */ {WSAEADDRINUSE, "The specified address is already in use"},
      /* 10049 */
      {WSAEADDRNOTAVAIL, "The specified address is not available from the local machine"},
      /* 10050 */
      {WSAENETDOWN, "The Windows Sockets implementation has detected that the "
                    "network subsystem has failed"},
      /* 10051 */
      {WSAENETUNREACH, "The network can't be reached from this host at this time"},
      /* 10052 */
      {WSAENETRESET, "The connection must be reset because the Windows Sockets "
                     "implementation dropped it"},
      /* 10053 */
      {WSAECONNABORTED, "The virtual circuit was aborted due to timeout or other failure"},
      /* 10054 */
      {WSAECONNRESET, "The virtual circuit was reset by the remote side"},
      /* 10055 */
      {WSAENOBUFS, "No buffer space is available or a buffer deadlock has "
                   "occured. The socket cannot be created"},
      /* 10056 */ {WSAEISCONN, "The socket is already connected"},
      /* 10057 */ {WSAENOTCONN, "The socket is not connected"},
      /* 10058 */ {WSAESHUTDOWN, "The socket has been shutdown"},
      /* 10059 */ {WSAETOOMANYREFS, "BSD: Too many references"},
      /* 10060 */
      {WSAETIMEDOUT, "Attempt to connect timed out without establishing a connection"},
      /* 10061 */ {WSAECONNREFUSED, "Connection was refused"},
      /* 10062 */ {WSAELOOP, "Undocumented WinSock error code used in BSD"},
      /* 10063 */
      {WSAENAMETOOLONG, "Undocumented WinSock error code used in BSD"},
      /* 10064 */ {WSAEHOSTDOWN, "Undocumented WinSock error code used in BSD"},
      /* 10065 */ {WSAEHOSTUNREACH, "No route to host"},
      /* 10066 */ {WSAENOTEMPTY, "Undocumented WinSock error code"},
      /* 10067 */ {WSAEPROCLIM, "Undocumented WinSock error code"},
      /* 10068 */ {WSAEUSERS, "Undocumented WinSock error code"},
      /* 10069 */ {WSAEDQUOT, "Undocumented WinSock error code"},
      /* 10070 */ {WSAESTALE, "Undocumented WinSock error code"},
      /* 10071 */ {WSAEREMOTE, "Undocumented WinSock error code"},
      /* 10091 */
      {WSASYSNOTREADY, "Underlying network subsytem is not ready for network communication"},
      /* 10092 */
      {WSAVERNOTSUPPORTED, "The version of WinSock API support requested is "
                           "not provided in this implementation"},
      /* 10093 */
      {WSANOTINITIALISED, "WinSock subsystem not properly initialized"},
      /* 10101 */
      {WSAEDISCON, "Virtual circuit has gracefully terminated connection"},
      /* 11001 */ {WSAHOST_NOT_FOUND, "The specified host is unknown"},
      /* 11002 */
      {WSATRY_AGAIN, "A temporary error occurred on an authoritative name server"},
      /* 11003 */
      {WSANO_RECOVERY, "A non-recoverable name server error occurred"},
      /* 11004 */
      {WSANO_DATA, "The requested name is valid but does not have an IP address"},
      /* end   */ {0, NULL}
  };

  for (unsigned int i = 0; s_netErrorCodes[i].m_code != 0; ++i) {
    if (s_netErrorCodes[i].m_code == m_error) {
      return s_netErrorCodes[i].m_msg;
    }
  }
  return "Unknown error";
}
