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cpl_dir.cpp

00001 /**********************************************************************
00002  * $Id: cpl_dir_cpp-source.html,v 1.8 2001/07/05 13:24:08 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 1.8  2001/07/05 13:24:08  warmerda
00031  * *** empty log message ***
00031  *
00032  * Revision 1.3  2000/09/25 19:59:03  warmerda
00033  * look for WIN32 not _WIN32
00034  *
00035  * Revision 1.2  1999/05/20 02:54:38  warmerda
00036  * Added API documentation
00037  *
00038  * Revision 1.1  1999/02/25 04:52:00  danmo
00039  * *** empty log message ***
00040  *
00041  **********************************************************************/
00042 
00043 #include "cpl_conv.h"
00044 #include "cpl_string.h"
00045 
00046 
00047 #ifdef WIN32
00048 
00049 /*=====================================================================
00050                    WIN32 / MSVC++ implementation
00051  *====================================================================*/
00052 
00053 #include <io.h>
00054 
00055 /**********************************************************************
00056  *                          CPLReadDir()
00057  *
00058  * Return a stringlist with the list of files in a directory.
00059  * The returned stringlist should be freed with CSLDestroy().
00060  *
00061  * Returns NULL if an error happened or if the directory could not
00062  * be read.
00063  **********************************************************************/
00064 
00081 char **CPLReadDir(const char *pszPath)
00082 {
00083     struct _finddata_t c_file;
00084     long    hFile;
00085     char    *pszFileSpec, **papszDir = NULL;
00086 
00087     if (strlen(pszPath) == 0)
00088         pszPath = ".";
00089 
00090     pszFileSpec = CPLStrdup(CPLSPrintf("%s\\*.*", pszPath));
00091 
00092     if ( (hFile = _findfirst( pszFileSpec, &c_file )) != -1L )
00093     {
00094         do
00095         {
00096             papszDir = CSLAddString(papszDir, c_file.name);
00097         } while( _findnext( hFile, &c_file ) == 0 );
00098 
00099         _findclose( hFile );
00100     }
00101     else
00102     {
00103         /* Should we generate an error???  
00104          * For now we'll just return NULL (at the end of the function)
00105          */
00106     }
00107 
00108     CPLFree(pszFileSpec);
00109 
00110     return papszDir;
00111 }
00112 
00113 #else
00114 
00115 /*=====================================================================
00116                       POSIX (Unix) implementation
00117  *====================================================================*/
00118 
00119 #include <sys/types.h>
00120 #include <dirent.h>
00121 
00122 /**********************************************************************
00123  *                          CPLReadDir()
00124  *
00125  * Return a stringlist with the list of files in a directory.
00126  * The returned stringlist should be freed with CSLDestroy().
00127  *
00128  * Returns NULL if an error happened or if the directory could not
00129  * be read.
00130  **********************************************************************/
00131 char **CPLReadDir(const char *pszPath)
00132 {
00133     DIR           *hDir;
00134     struct dirent *psDirEntry;
00135     char          **papszDir = NULL;
00136 
00137     if (strlen(pszPath) == 0)
00138         pszPath = ".";
00139 
00140     if ( (hDir = opendir(pszPath)) != NULL )
00141     {
00142         while( (psDirEntry = readdir(hDir)) != NULL )
00143         {
00144             papszDir = CSLAddString(papszDir, psDirEntry->d_name);
00145         }
00146 
00147         closedir( hDir );
00148     }
00149     else
00150     {
00151         /* Should we generate an error???  
00152          * For now we'll just return NULL (at the end of the function)
00153          */
00154     }
00155 
00156     return papszDir;
00157 }
00158 
00159 #endif

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