1 /*=========================================================================
4 Module: $RCSfile: gdcmDirList.cxx,v $
6 Date: $Date: 2005/11/28 15:20:33 $
7 Version: $Revision: 1.54 $
9 Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
10 l'Image). All rights reserved. See Doc/License.txt or
11 http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
13 This software is distributed WITHOUT ANY WARRANTY; without even
14 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 PURPOSE. See the above copyright notices for more information.
17 =========================================================================*/
19 #include "gdcmDirList.h"
21 #include "gdcmDebug.h"
26 #include <sys/stat.h> //stat function
33 #include <sys/types.h>
38 //-----------------------------------------------------------------------------
39 // Constructor / Destructor
42 * @param dirName root directory name
43 * @param recursive whether we want to explore recursively or not
45 DirList::DirList(std::string const &dirName, bool recursive)
48 Explore(dirName, recursive);
58 //-----------------------------------------------------------------------------
61 * \brief Tells us if file name corresponds to a Directory
62 * @param dirName file name to check
63 * @return true if the file IS a Directory
65 bool DirList::IsDirectory(std::string const &dirName)
68 assert( dirName[dirName.size()-1] != '/' );
69 if ( stat(dirName.c_str(), &fs) == 0 )
72 return ((fs.st_mode & _S_IFDIR) != 0);
74 return S_ISDIR(fs.st_mode);
79 const char *str = strerror(errno);
80 gdcmStaticErrorMacro( str );
85 //-----------------------------------------------------------------------------
88 //-----------------------------------------------------------------------------
91 * \brief Explore a directory with possibility of recursion
92 * return number of files read
93 * @param dirpath directory to explore
94 * @param recursive whether we want recursion or not
96 int DirList::Explore(std::string const &dirpath, bool recursive)
98 int numberOfFiles = 0;
100 std::string dirName = Util::NormalizePath(dirpath);
102 WIN32_FIND_DATA fileData;
103 assert( dirName[dirName.size()-1] == '/' );
104 HANDLE hFile = FindFirstFile((dirName+"*").c_str(), &fileData);
106 for(BOOL b = (hFile != INVALID_HANDLE_VALUE); b;
107 b = FindNextFile(hFile, &fileData))
109 fileName = fileData.cFileName;
110 if ( fileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY )
112 // Need to check for . and .. to avoid infinite loop
113 if ( fileName != "." && fileName != ".." && recursive )
115 numberOfFiles += Explore(dirName+fileName,recursive);
120 Filenames.push_back(dirName+fileName);
124 DWORD dwError = GetLastError();
125 if (hFile != INVALID_HANDLE_VALUE) FindClose(hFile);
126 if (dwError != ERROR_NO_MORE_FILES)
128 gdcmErrorMacro("FindNextFile error. Error is " << dwError);
133 // Real POSIX implementation: scandir is a BSD extension only, and doesn't
134 // work on debian for example
136 DIR* dir = opendir(dirName.c_str());
142 // According to POSIX, the dirent structure contains a field char d_name[]
143 // of unspecified size, with at most NAME_MAX characters preceeding the
144 // terminating null character. Use of other fields will harm the porta-
145 // bility of your programs.
149 for (d = readdir(dir); d; d = readdir(dir))
151 fileName = dirName + d->d_name;
152 if( stat(fileName.c_str(), &buf) != 0 )
154 const char *str = strerror(errno);
155 gdcmErrorMacro( str );
157 if ( S_ISREG(buf.st_mode) ) //is it a regular file?
159 Filenames.push_back( fileName );
162 else if ( S_ISDIR(buf.st_mode) ) //directory?
164 if ( d->d_name[0] != '.' && recursive ) //we also skip hidden files
166 numberOfFiles += Explore( fileName, recursive);
171 gdcmErrorMacro( "Unexpected error" );
175 if( closedir(dir) != 0 )
177 const char *str = strerror(errno);
178 gdcmErrorMacro( str );
182 return numberOfFiles;
185 //-----------------------------------------------------------------------------
188 * \brief Print method
189 * @param os ostream to write to
191 void DirList::Print(std::ostream &os)
193 std::copy(Filenames.begin(), Filenames.end(),
194 std::ostream_iterator<std::string>(os, "\n"));
197 //-----------------------------------------------------------------------------
198 } // end namespace gdcm