configdriver.c

来自「一个可以替代windows ODBC驱动程序管理器的通用ODBC数据库引擎」· C语言 代码 · 共 150 行

/*
 *  ConfigDriver.c
 *
 *  $Id: ConfigDriver.c,v 1.1 2001/06/07 00:50:20 source Exp $
 *
 *  The iODBC driver manager.
 * 
 *  Copyright (C) 2001 by OpenLink Software <[e-mail]>
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Library General Public License for more details.
 *
 *  You should have received a copy of the GNU Library General Public
 *  License along with this library; if not, write to the Free
 *  Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <config.h>
#include <iodbcinst.h>
#include <iodbc_error.h>

#include "gui.h"

BOOL INSTAPI
ConfigDriver (HWND hwndParent,
    WORD fRequest,
    LPCSTR lpszDriver,
    LPCSTR lpszArgs, LPSTR lpszMsg, WORD cbMsgMax, WORD FAR * pcbMsgOut)
{
  char *path = NULL, *curr, *cour;
  char driverread[4096] = { 0 };
  BOOL retcode = FALSE;
  UWORD confMode = ODBC_USER_DSN;

  /* Map the request User/System */
  if (fRequest < ODBC_INSTALL_DRIVER || fRequest > ODBC_CONFIG_DRIVER_MAX)
    {
      SQLPostInstallerError (ODBC_ERROR_INVALID_REQUEST_TYPE, NULL);
      goto done;
    }

  if (!lpszDriver || !STRLEN (lpszDriver))
    {
      SQLPostInstallerError (ODBC_ERROR_INVALID_NAME, NULL);
      goto done;
    }

  /* Retrieve the config mode */
  SQLGetConfigMode (&confMode);

  /* Treat corresponding to the request */
  switch (fRequest)
    {
    case ODBC_INSTALL_DRIVER:
      /* Check if the DRIVER with this name already exists */
      SQLSetConfigMode (confMode);
#ifdef WIN32
      if (hwndParent
	  && SQLGetPrivateProfileString ("ODBC 32 bit Drivers", lpszDriver,
	      "", driverread, sizeof (driverread), "odbcinst.ini")
	  && !create_confirm (hwndParent, NULL,
	      "Are you sure you want to overwrite this driver ?"))
#else
#  ifdef _MACX
      if (hwndParent
	  && SQLGetPrivateProfileString ("ODBC Drivers", lpszDriver, "",
	      driverread, sizeof (driverread), "odbcinst.ini")
	  && !create_confirmadm (hwndParent, NULL,
	      "Are you sure you want to overwrite this driver ?"))
#  else
      if (hwndParent
	  && SQLGetPrivateProfileString ("ODBC Drivers", lpszDriver, "",
	      driverread, sizeof (driverread), "odbcinst.ini")
	  && !create_confirm (hwndParent, NULL,
	      "Are you sure you want to overwrite this driver ?"))
#  endif
#endif
	{
	  SQLPostInstallerError (ODBC_ERROR_DRIVER_SPECIFIC,
	      "Driver already installed previously.");
	  goto done;
	}

      /* Add the Driver to the ODBC Drivers */
      SQLSetConfigMode (confMode);
      if (!SQLInstallDriverEx (lpszArgs, NULL, driverread,
	      sizeof (driverread), NULL, ODBC_INSTALL_COMPLETE, NULL))
	{
	  SQLPostInstallerError (ODBC_ERROR_DRIVER_SPECIFIC,
	      "Could not add the driver informations.");
	  goto done;
	}

      break;

    case ODBC_CONFIG_DRIVER:
      if (!lpszArgs || !STRLEN (lpszArgs))
	{
	  SQLPostInstallerError (ODBC_ERROR_DRIVER_SPECIFIC,
	      "No enough parameters for configururation.");
	  goto done;
	}

      /* Add each keyword and values */
      for (curr = (LPSTR) lpszArgs; *curr; curr += (STRLEN (curr) + 1))
	{
	  STRCPY (driverread, curr);
	  cour = strchr (driverread, '=');
	  if (cour)
	    *cour = 0;
	  SQLSetConfigMode (confMode);
	  if (!SQLWritePrivateProfileString (lpszDriver, driverread, (cour
		      && STRLEN (cour + 1)) ? cour + 1 : NULL,
		  "odbcinst.ini"))
	    goto done;
	}
      break;

    case ODBC_REMOVE_DRIVER:
      /* Remove the Driver to the ODBC Drivers */
      SQLSetConfigMode (confMode);
      if (!SQLRemoveDriver (lpszDriver, TRUE, NULL))
	{
	  SQLPostInstallerError (ODBC_ERROR_DRIVER_SPECIFIC,
	      "Could not remove driver informations.");
	  goto done;
	}
      break;

    default:
      SQLPostInstallerError (ODBC_ERROR_REQUEST_FAILED, NULL);
      goto done;
    };

quit:
  retcode = TRUE;

done:
  if (pcbMsgOut)
    *pcbMsgOut = 0;
  return retcode;
}