112 lines
3.4 KiB
C
112 lines
3.4 KiB
C
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* environment variables access
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*
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* Copyright 2001-2002 Antonio Linares <alinares@fivetech.com>
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* www - http://www.harbour-project.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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/* NOTE: Notice that this code is needed as ANSI C getenv() crashes
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so badly when used from a Windows DLL. */
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/* For OS/2 */
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#define INCL_DOSMISC
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#define HB_OS_WIN_32_USED
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#include "hbapi.h"
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/* NOTE: Warning, this function _may_ return NULL as a result if
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the environment variable reading fails form some reason.
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If the return value is not NULL, the caller must free
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the pointer. [vszakats] */
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char * hb_getenv( const char * szName )
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{
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char * pszBuffer = NULL;
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#if defined(HB_OS_WIN_32)
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{
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DWORD size = GetEnvironmentVariable( szName, NULL, 0 );
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if( size != 0 )
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{
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pszBuffer = ( char * ) hb_xgrab( size );
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GetEnvironmentVariable( szName, pszBuffer, size );
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}
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}
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#elif defined(HB_OS_OS2)
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{
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PSZ EnvValue = "";
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if( DosScanEnv( szName, &EnvValue ) == NO_ERROR )
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{
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pszBuffer = ( char * ) hb_xgrab( strlen( EnvValue ) + 1 );
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strcpy( pszBuffer, ( char * ) EnvValue );
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}
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}
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#else
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{
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char * pszTemp = getenv( szName );
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if( pszTemp != NULL )
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{
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pszBuffer = ( char * ) hb_xgrab( strlen( pszTemp ) + 1 );
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strcpy( pszBuffer, pszTemp );
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}
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}
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#endif
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return pszBuffer;
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}
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