sqlinstalltranslatorex.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 154 行

/*
 *  SQLInstallTranslatorEx.c
 *
 *  $Id: SQLInstallTranslatorEx.c,v 1.1 2001/06/07 00:48:50 source Exp $
 *
 *  These functions intentionally left blank
 *
 *  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 <iodbc.h>
#include <iodbcinst.h>

#include "misc.h"
#include "inifile.h"
#include "iodbc_error.h"

#if !defined(WINDOWS) && !defined(WIN32) && !defined(OS2) && !defined(macintosh)
# include <pwd.h>
# include <unistd.h>
# define UNIX_PWD
#endif

extern BOOL InstallDriverPath ( LPSTR lpszPath,WORD cbPathMax,
    WORD FAR *pcbPathOut,LPSTR envname);
extern BOOL InstallDriverPathLength (WORD FAR * pcbPathOut,LPSTR envname);


BOOL INSTAPI
SQLInstallTranslatorEx (LPCSTR lpszTranslator, LPCSTR lpszPathIn,
    LPSTR lpszPathOut, WORD cbPathOutMax, WORD *pcbPathOut, WORD fRequest,
    LPDWORD lpdwUsageCount)
{
  PCONFIG pCfg = NULL, pOdbcCfg = NULL;
  int ret = 0, sect_len = 0;
  WORD curr = 0;
  BOOL retcode = FALSE;
  char *szId;

  CLEAR_ERROR ();

  if (lpszPathIn && access (lpszPathIn, R_OK | W_OK | X_OK))
    {
      PUSH_ERROR (ODBC_ERROR_INVALID_PATH);
      goto quit;
    }

  switch (fRequest)
    {
    case ODBC_INSTALL_INQUIRY:
      if (lpszPathIn)
	{
	  if (pcbPathOut)
	    *pcbPathOut = STRLEN (lpszPathIn);
	  retcode = TRUE;
	}
      else
	retcode = InstallDriverPathLength (pcbPathOut, "ODBCTRANSLATORS");
      goto quit;

    case ODBC_INSTALL_COMPLETE:
      break;

    default:
      PUSH_ERROR (ODBC_ERROR_INVALID_REQUEST_TYPE);
      goto quit;
    };

  /* Check input parameters */
  if (!lpszTranslator || !STRLEN (lpszTranslator))
    {
      PUSH_ERROR (ODBC_ERROR_INVALID_PARAM_SEQUENCE);
      goto quit;
    }

  if (!lpszPathOut || !cbPathOutMax)
    {
      PUSH_ERROR (ODBC_ERROR_INVALID_BUFF_LEN);
      goto quit;
    }

  /* Write the out path */
  if (!InstallDriverPath (lpszPathOut, cbPathOutMax, pcbPathOut,
	  "ODBCTRANSLATORS"))
    goto quit;

  /* Else go through user/system odbcinst.ini */
  switch (configMode)
    {
    case ODBC_BOTH_DSN:
    case ODBC_USER_DSN:
      wSystemDSN = USERDSN_ONLY;
      break;

    case ODBC_SYSTEM_DSN:
      wSystemDSN = SYSTEMDSN_ONLY;
      break;
    };

  if (_iodbcdm_cfg_search_init (&pCfg, "odbcinst.ini", TRUE))
    {
      PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
      goto quit;
    }

  if (_iodbcdm_cfg_search_init (&pOdbcCfg, "odbc.ini", TRUE))
    {
      PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
      pOdbcCfg = NULL;
      goto done;
    }

  if (!install_from_string (pCfg, pOdbcCfg, (char *) lpszTranslator, FALSE))
    {
      PUSH_ERROR (ODBC_ERROR_INVALID_KEYWORD_VALUE);
      goto done;
    }

  if (_iodbcdm_cfg_commit (pCfg) || _iodbcdm_cfg_commit (pOdbcCfg))
    {
      PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
      goto done;
    }

  retcode = TRUE;

done:
  _iodbcdm_cfg_done (pCfg);
  if (pOdbcCfg)
    _iodbcdm_cfg_done (pOdbcCfg);

quit:
  wSystemDSN = USERDSN_ONLY;
  configMode = ODBC_BOTH_DSN;

  return retcode;
}