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cpl_dir.cpp

00001 /**********************************************************************
00002  * $Id: cpl_dir_cpp-source.html,v 1.13 2002/12/21 19:13:12 warmerda Exp $
00003  *
00004  * Name:     cpl_dir.cpp
00005  * Project:  CPL - Common Portability Library
00006  * Purpose:  Directory manipulation.
00007  * Author:   Daniel Morissette, danmo@videotron.ca
00008  *
00009  **********************************************************************
00010  * Copyright (c) 1998, Daniel Morissette
00011  *
00012  * Permission is hereby granted, free of charge, to any person obtaining a
00013  * copy of this software and associated documentation files (the "Software"),
00014  * to deal in the Software without restriction, including without limitation
00015  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
00016  * and/or sell copies of the Software, and to permit persons to whom the
00017  * Software is furnished to do so, subject to the following conditions:
00018  * 
00019  * The above copyright notice and this permission notice shall be included
00020  * in all copies or substantial portions of the Software.
00021  * 
00022  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00023  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00024  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
00025  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00026  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
00027  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
00028  * DEALINGS IN THE SOFTWARE.
00029  **********************************************************************
00030  *
00031  * $Log: cpl_dir_cpp-source.html,v $
00031  * Revision 1.13  2002/12/21 19:13:12  warmerda
00031  * updated
00031  *
00032  * Revision 1.5  2002/03/28 14:52:32  warmerda
00033  * moved docs to non-WIN32 section
00034  *
00035  * Revision 1.4  2001/07/18 04:00:49  warmerda
00036  * added CPL_CVSID
00037  *
00038  * Revision 1.3  2000/09/25 19:59:03  warmerda
00039  * look for WIN32 not _WIN32
00040  *
00041  * Revision 1.2  1999/05/20 02:54:38  warmerda
00042  * Added API documentation
00043  *
00044  * Revision 1.1  1999/02/25 04:52:00  danmo
00045  * *** empty log message ***
00046  *
00047  **********************************************************************/
00048 
00049 #include "cpl_conv.h"
00050 #include "cpl_string.h"
00051 
00052 CPL_CVSID("$Id: cpl_dir_cpp-source.html,v 1.13 2002/12/21 19:13:12 warmerda Exp $");
00053 
00054 #ifdef WIN32
00055 
00056 /*=====================================================================
00057                    WIN32 / MSVC++ implementation
00058  *====================================================================*/
00059 
00060 #include <io.h>
00061 
00062 /**********************************************************************
00063  *                          CPLReadDir()
00064  *
00065  * Return a stringlist with the list of files in a directory.
00066  * The returned stringlist should be freed with CSLDestroy().
00067  *
00068  * Returns NULL if an error happened or if the directory could not
00069  * be read.
00070  **********************************************************************/
00071 
00072 char **CPLReadDir(const char *pszPath)
00073 {
00074     struct _finddata_t c_file;
00075     long    hFile;
00076     char    *pszFileSpec, **papszDir = NULL;
00077 
00078     if (strlen(pszPath) == 0)
00079         pszPath = ".";
00080 
00081     pszFileSpec = CPLStrdup(CPLSPrintf("%s\\*.*", pszPath));
00082 
00083     if ( (hFile = _findfirst( pszFileSpec, &c_file )) != -1L )
00084     {
00085         do
00086         {
00087             papszDir = CSLAddString(papszDir, c_file.name);
00088         } while( _findnext( hFile, &c_file ) == 0 );
00089 
00090         _findclose( hFile );
00091     }
00092     else
00093     {
00094         /* Should we generate an error???  
00095          * For now we'll just return NULL (at the end of the function)
00096          */
00097     }
00098 
00099     CPLFree(pszFileSpec);
00100 
00101     return papszDir;
00102 }
00103 
00104 #else
00105 
00106 /*=====================================================================
00107                       POSIX (Unix) implementation
00108  *====================================================================*/
00109 
00110 #include <sys/types.h>
00111 #include <dirent.h>
00112 
00113 /**********************************************************************
00114  *                          CPLReadDir()
00115  *
00116  * Return a stringlist with the list of files in a directory.
00117  * The returned stringlist should be freed with CSLDestroy().
00118  *
00119  * Returns NULL if an error happened or if the directory could not
00120  * be read.
00121  **********************************************************************/
00122 
00139 char **CPLReadDir(const char *pszPath)
00140 {
00141     DIR           *hDir;
00142     struct dirent *psDirEntry;
00143     char          **papszDir = NULL;
00144 
00145     if (strlen(pszPath) == 0)
00146         pszPath = ".";
00147 
00148     if ( (hDir = opendir(pszPath)) != NULL )
00149     {
00150         while( (psDirEntry = readdir(hDir)) != NULL )
00151         {
00152             papszDir = CSLAddString(papszDir, psDirEntry->d_name);
00153         }
00154 
00155         closedir( hDir );
00156     }
00157     else
00158     {
00159         /* Should we generate an error???  
00160          * For now we'll just return NULL (at the end of the function)
00161          */
00162     }
00163 
00164     return papszDir;
00165 }
00166 
00167 #endif

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