mirror of
https://git.osgeo.org/gitea/postgis/postgis
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299 lines
9.9 KiB
C
299 lines
9.9 KiB
C
/******************************************************************************
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* $Id: safileio.c,v 1.4 2008-01-16 20:05:14 bram Exp $
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*
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* Project: Shapelib
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* Purpose: Default implementation of file io based on stdio.
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* Author: Frank Warmerdam, warmerdam@pobox.com
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*
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******************************************************************************
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* Copyright (c) 2007, Frank Warmerdam
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*
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* This software is available under the following "MIT Style" license,
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* or at the option of the licensee under the LGPL (see LICENSE.LGPL). This
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* option is discussed in more detail in shapelib.html.
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*
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* --
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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******************************************************************************
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*
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* $Log: safileio.c,v $
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* Revision 1.4 2008-01-16 20:05:14 bram
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* Add file hooks that accept UTF-8 encoded filenames on some platforms. Use SASetupUtf8Hooks
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* tosetup the hooks and check SHPAPI_UTF8_HOOKS for its availability. Currently, this
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* is only available on the Windows platform that decodes the UTF-8 filenames to wide
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* character strings and feeds them to _wfopen and _wremove.
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*
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* Revision 1.3 2007/12/18 18:28:11 bram
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* - create hook for client specific atof (bugzilla ticket 1615)
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* - check for NULL handle before closing cpCPG file, and close after reading.
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*
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* Revision 1.2 2007/12/15 20:25:30 bram
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* dbfopen.c now reads the Code Page information from the DBF file, and exports
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* this information as a string through the DBFGetCodePage function. This is
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* either the number from the LDID header field ("LDID/<number>") or as the
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* content of an accompanying .CPG file. When creating a DBF file, the code can
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* be set using DBFCreateEx.
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*
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* Revision 1.1 2007/12/06 06:56:41 fwarmerdam
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* new
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*
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*/
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#include "shapefil.h"
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#include <math.h>
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#include <limits.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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SHP_CVSID("$Id: safileio.c,v 1.4 2008-01-16 20:05:14 bram Exp $");
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#ifdef SHPAPI_UTF8_HOOKS
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# ifdef SHPAPI_WINDOWS
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# define WIN32_LEAN_AND_MEAN
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# define NOMINMAX
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# include <windows.h>
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# pragma comment(lib, "kernel32.lib")
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# endif
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#endif
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/* Local Prototypes */
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SAFile SADFOpen( const char *pszFilename, const char *pszAccess );
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SAOffset SADFRead( void *p, SAOffset size, SAOffset nmemb, SAFile file );
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SAOffset SADFWrite( void *p, SAOffset size, SAOffset nmemb, SAFile file );
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SAOffset SADFSeek( SAFile file, SAOffset offset, int whence );
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SAOffset SADFTell( SAFile file );
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int SADFFlush( SAFile file );
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int SADFClose( SAFile file );
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int SADRemove( const char *filename );
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void SADError( const char *message );
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/************************************************************************/
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/* SADFOpen() */
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/************************************************************************/
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SAFile SADFOpen( const char *pszFilename, const char *pszAccess )
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{
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return (SAFile) fopen( pszFilename, pszAccess );
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}
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/************************************************************************/
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/* SADFRead() */
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/************************************************************************/
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SAOffset SADFRead( void *p, SAOffset size, SAOffset nmemb, SAFile file )
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{
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return (SAOffset) fread( p, (size_t) size, (size_t) nmemb,
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(FILE *) file );
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}
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/************************************************************************/
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/* SADFWrite() */
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/************************************************************************/
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SAOffset SADFWrite( void *p, SAOffset size, SAOffset nmemb, SAFile file )
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{
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return (SAOffset) fwrite( p, (size_t) size, (size_t) nmemb,
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(FILE *) file );
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}
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/************************************************************************/
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/* SADFSeek() */
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/************************************************************************/
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SAOffset SADFSeek( SAFile file, SAOffset offset, int whence )
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{
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return (SAOffset) fseek( (FILE *) file, (long) offset, whence );
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}
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/************************************************************************/
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/* SADFTell() */
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/************************************************************************/
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SAOffset SADFTell( SAFile file )
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{
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return (SAOffset) ftell( (FILE *) file );
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}
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/************************************************************************/
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/* SADFFlush() */
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/************************************************************************/
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int SADFFlush( SAFile file )
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{
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return fflush( (FILE *) file );
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}
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/************************************************************************/
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/* SADFClose() */
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/************************************************************************/
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int SADFClose( SAFile file )
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{
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return fclose( (FILE *) file );
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}
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/************************************************************************/
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/* SADFClose() */
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/************************************************************************/
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int SADRemove( const char *filename )
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{
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return remove( filename );
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}
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/************************************************************************/
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/* SADError() */
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/************************************************************************/
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void SADError( const char *message )
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{
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fprintf( stderr, "%s\n", message );
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}
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/************************************************************************/
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/* SASetupDefaultHooks() */
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/************************************************************************/
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void SASetupDefaultHooks( SAHooks *psHooks )
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{
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psHooks->FOpen = SADFOpen;
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psHooks->FRead = SADFRead;
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psHooks->FWrite = SADFWrite;
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psHooks->FSeek = SADFSeek;
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psHooks->FTell = SADFTell;
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psHooks->FFlush = SADFFlush;
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psHooks->FClose = SADFClose;
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psHooks->Remove = SADRemove;
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psHooks->Error = SADError;
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psHooks->Atof = atof;
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}
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#ifdef SHPAPI_WINDOWS
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/************************************************************************/
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/* Utf8ToWideChar */
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/************************************************************************/
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const wchar_t* Utf8ToWideChar( const char *pszFilename )
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{
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int nMulti, nWide;
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wchar_t *pwszFileName;
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nMulti = strlen(pszFilename) + 1;
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nWide = MultiByteToWideChar( CP_UTF8, 0, pszFilename, nMulti, 0, 0);
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if( nWide == 0 )
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{
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return NULL;
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}
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pwszFileName = (wchar_t*) malloc(nWide * sizeof(wchar_t));
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if ( pwszFileName == NULL )
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{
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return NULL;
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}
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if( MultiByteToWideChar( CP_UTF8, 0, pszFilename, nMulti, pwszFileName, nWide ) == 0 )
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{
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free( pwszFileName );
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return NULL;
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}
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return pwszFileName;
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}
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/************************************************************************/
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/* SAUtf8WFOpen */
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/************************************************************************/
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SAFile SAUtf8WFOpen( const char *pszFilename, const char *pszAccess )
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{
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SAFile file = NULL;
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const wchar_t *pwszFileName, *pwszAccess;
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pwszFileName = Utf8ToWideChar( pszFilename );
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pwszAccess = Utf8ToWideChar( pszAccess );
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if( pwszFileName != NULL && pwszFileName != NULL)
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{
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file = (SAFile) _wfopen( pwszFileName, pwszAccess );
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}
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free ((wchar_t*) pwszFileName);
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free ((wchar_t*) pwszAccess);
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return file;
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}
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/************************************************************************/
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/* SAUtf8WRemove() */
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/************************************************************************/
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int SAUtf8WRemove( const char *pszFilename )
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{
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const wchar_t *pwszFileName = Utf8ToWideChar( pszFilename );
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int rc = -1;
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if( pwszFileName != NULL )
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{
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rc = _wremove( pwszFileName );
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}
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free ((wchar_t*) pwszFileName);
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return rc;
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}
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#endif
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#ifdef SHPAPI_UTF8_HOOKS
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/************************************************************************/
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/* SASetupUtf8Hooks() */
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/************************************************************************/
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void SASetupUtf8Hooks( SAHooks *psHooks )
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{
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#ifdef SHPAPI_WINDOWS
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psHooks->FOpen = SAUtf8WFOpen;
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psHooks->Remove = SAUtf8WRemove;
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#else
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# error "no implementations of UTF-8 hooks available for this platform"
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#endif
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psHooks->FRead = SADFRead;
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psHooks->FWrite = SADFWrite;
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psHooks->FSeek = SADFSeek;
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psHooks->FTell = SADFTell;
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psHooks->FFlush = SADFFlush;
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psHooks->FClose = SADFClose;
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psHooks->Error = SADError;
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psHooks->Atof = atof;
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}
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#endif
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