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gete.c
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gete.c
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/*
* GetEnv(), GetE() functions
*
* Copyright 1999 Matthew Hamilton <mhamilton@bunge.com.au>
* Copyright 1999-2001 Viktor Szakats (vszakats.net/harbour) (GetE())
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program 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; see the file LICENSE.txt. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA (or visit https://www.gnu.org/licenses/).
*
* As a special exception, the Harbour Project gives permission for
* additional uses of the text contained in its release of Harbour.
*
* The exception is that, if you link the Harbour libraries with other
* files to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the Harbour library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the Harbour
* Project under the name Harbour. If you copy code from other
* Harbour Project or Free Software Foundation releases into a copy of
* Harbour, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for Harbour, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*
*/
#include "hbapi.h"
#include "hbapiitm.h"
/* NOTE: Convert the envvar name to uppercase. This is required for
MS-DOS and OS/2 systems. [vszakats] */
#if defined( HB_OS_DOS ) || defined( HB_OS_OS2 )
# include "hbapicdp.h"
# define _HB_GETENV_REQUIRES_UPPERCASE
#endif
HB_FUNC( GETENV )
{
PHB_ITEM pName = hb_param( 1, HB_IT_STRING );
if( pName && hb_pcount() == 1 )
{
#ifdef _HB_GETENV_REQUIRES_UPPERCASE
char * pszName = hb_cdpnDupUpper( hb_vmCDP(),
hb_itemGetCPtr( pName ), NULL );
#else
const char * pszName = hb_itemGetCPtr( pName );
#endif
char * pszValue = NULL;
if( pszName[ 0 ] != '\0' )
pszValue = hb_getenv( pszName );
if( pszValue )
hb_retc_buffer( pszValue );
else
hb_retc_null();
#ifdef _HB_GETENV_REQUIRES_UPPERCASE
hb_xfree( pszName );
#endif
}
else
hb_retc_null();
}
/* NOTE: Undocumented Clipper function. [vszakats] */
#ifdef HB_CLP_UNDOC
HB_FUNC_TRANSLATE( GETE, GETENV )
#endif
/* NOTE: Harbour extended version of GetEnv(). The 2nd parameter
can be used to specify a default value, returned if the
requested envvar doesn't exist.
[vszakats] */
HB_FUNC( HB_GETENV )
{
PHB_ITEM pName = hb_param( 1, HB_IT_STRING );
if( pName )
{
#ifdef _HB_GETENV_REQUIRES_UPPERCASE
char * pszName = hb_cdpnDupUpper( hb_vmCDP(),
hb_itemGetCPtr( pName ), NULL );
#else
const char * pszName = hb_itemGetCPtr( pName );
#endif
char * pszValue = NULL;
if( pszName[ 0 ] != '\0' )
pszValue = hb_getenv( pszName );
if( pszValue )
hb_retc_buffer( pszValue );
else
hb_retc( hb_parc( 2 ) );
#ifdef _HB_GETENV_REQUIRES_UPPERCASE
hb_xfree( pszName );
#endif
}
else
hb_retc( hb_parc( 2 ) );
}
HB_FUNC( HB_SETENV )
{
const char * pszName = hb_parc( 1 );
HB_BOOL fResult = HB_FALSE;
if( pszName )
fResult = hb_setenv( pszName, hb_parc( 2 ) );
hb_retl( fResult );
}