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# cpl_dir.cpp

    00001 /**********************************************************************
    00002  * $Id: cpl_dir_cpp-source.html,v 1.1 2000/09/25 20:50:11 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 1.1  2000/09/25 20:50:11  warmerda
    00031  * New
    00031  *
    00032  * Revision 1.2  1999/05/20 02:54:38  warmerda
    00033  * Added API documentation
    00034  *
    00035  * Revision 1.1  1999/02/25 04:52:00  danmo
    00036  * *** empty log message ***
    00037  *
    00038  **********************************************************************/
    00039
    00040 #include "cpl_conv.h"
    00041 #include "cpl_string.h"
    00042
    00043
    00044 #ifdef _WIN32
    00045
    00046 /*=====================================================================
    00047                    WIN32 / MSVC++ implementation
    00048  *====================================================================*/
    00049
    00050 #include <io.h>
    00051
    00052 /**********************************************************************
    00053  *                          CPLReadDir()
    00054  *
    00055  * Return a stringlist with the list of files in a directory.
    00056  * The returned stringlist should be freed with CSLDestroy().
    00057  *
    00058  * Returns NULL if an error happened or if the directory could not
    00059  * be read.
    00060  **********************************************************************/
    00061
    00078 char **CPLReadDir(const char *pszPath)
    00079 {
    00080     struct _finddata_t c_file;
    00081     long    hFile;
    00082     char    *pszFileSpec, **papszDir = NULL;
    00083
    00084     if (strlen(pszPath) == 0)
    00085         pszPath = ".";
    00086
    00087     pszFileSpec = CPLStrdup(CPLSPrintf("%s\\*.*", pszPath));
    00088
    00089     if ( (hFile = _findfirst( pszFileSpec, &c_file )) != -1L )
    00090     {
    00091         do
    00092         {
    00093             papszDir = CSLAddString(papszDir, c_file.name);
    00094         } while( _findnext( hFile, &c_file ) == 0 );
    00095
    00096         _findclose( hFile );
    00097     }
    00098     else
    00099     {
    00100         /* Should we generate an error???
    00101          * For now we'll just return NULL (at the end of the function)
    00102          */
    00103     }
    00104
    00105     CPLFree(pszFileSpec);
    00106
    00107     return papszDir;
    00108 }
    00109
    00110 #else
    00111
    00112 /*=====================================================================
    00113                       POSIX (Unix) implementation
    00114  *====================================================================*/
    00115
    00116 #include <sys/types.h>
    00117 #include <dirent.h>
    00118
    00119 /**********************************************************************
    00120  *                          CPLReadDir()
    00121  *
    00122  * Return a stringlist with the list of files in a directory.
    00123  * The returned stringlist should be freed with CSLDestroy().
    00124  *
    00125  * Returns NULL if an error happened or if the directory could not
    00126  * be read.
    00127  **********************************************************************/
    00128 char **CPLReadDir(const char *pszPath)
    00129 {
    00130     DIR           *hDir;
    00131     struct dirent *psDirEntry;
    00132     char          **papszDir = NULL;
    00133
    00134     if (strlen(pszPath) == 0)
    00135         pszPath = ".";
    00136
    00137     if ( (hDir = opendir(pszPath)) != NULL )
    00138     {
    00139         while( (psDirEntry = readdir(hDir)) != NULL )
    00140         {
    00141             papszDir = CSLAddString(papszDir, psDirEntry->d_name);
    00142         }
    00143
    00144         closedir( hDir );
    00145     }
    00146     else
    00147     {
    00148         /* Should we generate an error???
    00149          * For now we'll just return NULL (at the end of the function)
    00150          */
    00151     }
    00152
    00153     return papszDir;
    00154 }
    00155
    00156 #endif