eedf422c9d
* src/rtl/fslink.c
! Windows typo, non-UNICODE build.
* tests/flink.prg
+ HB_FLINKREAD() calls.
351 lines
9.8 KiB
C
351 lines
9.8 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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* hb_fsLink*(), HB_FLINK*() functions
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*
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* Copyright 2010 Viktor Szakats (harbour.01 syenar.hu)
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* www - http://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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#include "hbapi.h"
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#include "hbapifs.h"
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#if defined( HB_OS_WIN ) && ! defined( HB_OS_WIN_CE )
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#include <windows.h>
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#elif defined( HB_OS_UNIX )
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#include <unistd.h>
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#endif
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HB_BOOL hb_fsLink( const char * pszExisting, const char * pszNewFile )
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{
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HB_BOOL fResult;
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if( pszExisting && pszNewFile )
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{
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#if defined( HB_OS_WIN ) && ! defined( HB_OS_WIN_CE )
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{
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typedef BOOL ( WINAPI * _HB_CREATEHARDLINK )( LPCTSTR, LPCTSTR, LPSECURITY_ATTRIBUTES );
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static _HB_CREATEHARDLINK s_pCreateHardLink = NULL;
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if( ! s_pCreateHardLink )
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s_pCreateHardLink = ( _HB_CREATEHARDLINK ) GetProcAddress( GetModuleHandle( TEXT( "kernel32.dll" ) ),
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#if defined( UNICODE )
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"CreateHardLinkW" );
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#else
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"CreateHardLinkA" );
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#endif
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if( s_pCreateHardLink )
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{
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LPTSTR lpFileName = HB_TCHAR_CONVTO( pszNewFile );
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LPTSTR lpExistingFileName = HB_TCHAR_CONVTO( pszExisting );
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fResult = s_pCreateHardLink( lpFileName, lpExistingFileName, NULL ) != 0;
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hb_fsSetIOError( fResult, 0 );
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hb_fsSetFError( hb_fsError() );
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HB_TCHAR_FREE( lpFileName );
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HB_TCHAR_FREE( lpExistingFileName );
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}
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else
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{
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hb_fsSetFError( 1 );
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fResult = HB_FALSE;
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}
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}
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#elif defined( HB_OS_UNIX )
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{
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fResult = ( link( pszExisting, pszNewFile ) == 0 );
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hb_fsSetIOError( fResult, 0 );
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hb_fsSetFError( hb_fsError() );
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}
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#else
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{
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hb_fsSetFError( 1 );
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fResult = HB_FALSE;
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}
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#endif
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}
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else
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{
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hb_fsSetFError( 2 );
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fResult = HB_FALSE;
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}
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return fResult;
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}
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HB_BOOL hb_fsLinkSym( const char * pszTarget, const char * pszNewFile )
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{
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HB_BOOL fResult;
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if( pszTarget && pszNewFile )
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{
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#if defined( HB_OS_WIN ) && ! defined( HB_OS_WIN_CE )
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{
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typedef BOOL ( WINAPI * _HB_CREATESYMBOLICLINK )( LPCTSTR, LPCTSTR, DWORD );
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static _HB_CREATESYMBOLICLINK s_pCreateSymbolicLink = NULL;
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#ifndef SYMBOLIC_LINK_FLAG_DIRECTORY
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#define SYMBOLIC_LINK_FLAG_DIRECTORY 0x1
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#endif
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if( ! s_pCreateSymbolicLink )
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s_pCreateSymbolicLink = ( _HB_CREATESYMBOLICLINK ) GetProcAddress( GetModuleHandle( TEXT( "kernel32.dll" ) ),
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#if defined( UNICODE )
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"CreateSymbolicLinkW" );
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#else
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"CreateSymbolicLinkA" );
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#endif
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if( s_pCreateSymbolicLink )
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{
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LPTSTR lpSymlinkFileName = HB_TCHAR_CONVTO( pszNewFile );
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LPTSTR lpTargetFileName = HB_TCHAR_CONVTO( pszTarget );
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fResult = s_pCreateSymbolicLink( lpSymlinkFileName, lpTargetFileName, hb_fsIsDirectory( pszTarget ) ? SYMBOLIC_LINK_FLAG_DIRECTORY : 0 ) != 0;
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hb_fsSetIOError( fResult, 0 );
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hb_fsSetFError( hb_fsError() );
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HB_TCHAR_FREE( lpSymlinkFileName );
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HB_TCHAR_FREE( lpTargetFileName );
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}
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else
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{
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hb_fsSetFError( 1 );
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fResult = HB_FALSE;
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}
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}
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#elif defined( HB_OS_UNIX )
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{
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fResult = ( symlink( pszTarget, pszNewFile ) == 0 );
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hb_fsSetIOError( fResult, 0 );
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hb_fsSetFError( hb_fsError() );
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}
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#else
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{
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hb_fsSetFError( 1 );
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fResult = HB_FALSE;
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}
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#endif
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}
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else
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{
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hb_fsSetFError( 2 );
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fResult = HB_FALSE;
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}
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return fResult;
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}
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/* NOTE: Caller must free the pointer, if not NULL */
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char * hb_fsLinkRead( const char * pszFile )
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{
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char * pszLink;
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if( pszFile )
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{
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#if defined( HB_OS_WIN ) && ! defined( HB_OS_WIN_CE )
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{
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typedef DWORD ( WINAPI * _HB_GETFINALPATHNAMEBYHANDLE )( HANDLE, LPTSTR, DWORD, DWORD );
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static _HB_GETFINALPATHNAMEBYHANDLE s_pGetFinalPathNameByHandle = NULL;
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#ifndef VOLUME_NAME_DOS
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#define VOLUME_NAME_DOS 0x0
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#endif
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#ifndef VOLUME_NAME_GUID
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#define VOLUME_NAME_GUID 0x1
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#endif
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#ifndef VOLUME_NAME_NT
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#define VOLUME_NAME_NT 0x2
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#endif
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#ifndef VOLUME_NAME_NONE
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#define VOLUME_NAME_NONE 0x4
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#endif
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#ifndef FILE_NAME_NORMALIZED
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#define FILE_NAME_NORMALIZED 0x0
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#endif
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#ifndef FILE_NAME_OPENED
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#define FILE_NAME_OPENED 0x8
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#endif
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if( ! s_pGetFinalPathNameByHandle )
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s_pGetFinalPathNameByHandle = ( _HB_GETFINALPATHNAMEBYHANDLE ) GetProcAddress( GetModuleHandle( TEXT( "kernel32.dll" ) ),
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#if defined( UNICODE )
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"GetFinalPathNameByHandleW" );
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#else
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"GetFinalPathNameByHandleA" );
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#endif
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if( s_pGetFinalPathNameByHandle )
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{
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LPTSTR lpFileName = HB_TCHAR_CONVTO( pszFile );
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HANDLE hFile;
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hFile = CreateFile( lpFileName,
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GENERIC_READ,
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FILE_SHARE_READ,
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NULL,
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OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL,
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NULL );
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if( hFile == INVALID_HANDLE_VALUE )
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{
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hb_fsSetIOError( HB_FALSE, 0 );
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hb_fsSetFError( hb_fsError() );
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pszLink = NULL;
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}
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else
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{
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DWORD size;
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TCHAR lpLink[ HB_PATH_MAX ];
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size = s_pGetFinalPathNameByHandle( hFile, lpLink, HB_PATH_MAX, VOLUME_NAME_DOS );
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if( size < HB_PATH_MAX )
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{
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if( size > 0 )
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{
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pszLink = ( char * ) hb_xgrab( size + 1 );
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#if defined( UNICODE )
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hb_wcntombcpy( pszLink, lpLink, ( HB_SIZE ) size );
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#else
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hb_strncpy( pszLink, lpLink, ( HB_SIZE ) size );
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#endif
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}
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else
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pszLink = NULL;
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hb_fsSetIOError( HB_TRUE, 0 );
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hb_fsSetFError( hb_fsError() );
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}
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else
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{
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hb_fsSetFError( 1 );
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pszLink = NULL;
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}
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}
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HB_TCHAR_FREE( lpFileName );
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}
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else
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{
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hb_fsSetFError( 1 );
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pszLink = NULL;
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}
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}
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#elif defined( HB_OS_UNIX )
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{
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size_t size;
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pszLink = ( char * ) hb_xgrab( HB_PATH_MAX + 1 );
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size = readlink( pszFile, pszLink, HB_PATH_MAX );
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hb_fsSetIOError( size != ( size_t ) -1, 0 );
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hb_fsSetFError( hb_fsError() );
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if( size == ( size_t ) -1 )
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{
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hb_xfree( pszLink );
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pszLink = NULL;
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}
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else
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pszLink[ size ] = '\0';
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}
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#else
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{
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hb_fsSetFError( 1 );
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pszLink = NULL;
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}
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#endif
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}
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else
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{
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hb_fsSetFError( 2 );
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pszLink = NULL;
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}
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return pszLink;
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}
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HB_FUNC( HB_FLINK )
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{
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const char * pszExisting = hb_parc( 1 ), * pszNewFile = hb_parc( 2 );
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if( pszExisting && pszNewFile )
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hb_retni( hb_fsLink( pszExisting, pszNewFile ) ? 0 : F_ERROR );
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else
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{
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hb_fsSetFError( 2 );
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hb_retni( F_ERROR );
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}
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}
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HB_FUNC( HB_FLINKSYM )
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{
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const char * pszTarget = hb_parc( 1 ), * pszNewFile = hb_parc( 2 );
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if( pszTarget && pszNewFile )
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hb_retni( hb_fsLinkSym( pszTarget, pszNewFile ) ? 0 : F_ERROR );
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else
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{
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hb_fsSetFError( 2 );
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hb_retni( F_ERROR );
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}
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}
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HB_FUNC( HB_FLINKREAD )
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{
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const char * pszFile = hb_parc( 1 );
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if( pszFile )
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hb_retc_buffer( hb_fsLinkRead( pszFile ) );
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else
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{
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hb_fsSetFError( 2 );
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hb_retc_null();
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}
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}
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