/**
 *
 * @File : exo_06_2.cxx, Fichiers
 *
 * @Authors : A. B. Dragut
 *
 * @Date : 2011
 *
 * @Synopsis : etude des fonctions pour les repertoires
 *             opendir, readdir, chdir, closedir
 *
 **/
#include <string>
#include <iostream>
#include <exception>

#include <sys/stat.h>       // struct stat
#include <sys/types.h>     
#include <dirent.h>     
 

#include "CExc.h"

#include "nsSysteme.h"      // LStat(), ChDir(), OpenDir(), ReadDir()

using namespace nsSysteme;  // LStat(), ChDir(), OpenDir(), ReadDir()
using namespace std;

int main (int argc, char * argv [])
{
  try {
    if (2 != argc)
        throw CExc ("main()", string ("Usage : ") +
		    argv [0] + " <repertoire>");

    DIR *pDir(OpenDir(argv[1]));

    ChDir(argv[1]);

    dirent * pEntry;

    while((pEntry = ReadDir(pDir))) {
      struct stat S;
      
      LStat(pEntry -> d_name, & S);
      mode_t mode (S . st_mode);
      
      if(S_ISDIR(mode)) 
	cout << "d"; 
      else if(S_ISREG(mode)) 
	cout << "-";
      else if(S_IFLNK & mode)
	cout << "l";
      else
	cout << "."; 
      
      cout << ((S_IRUSR & mode)?"r":"-")  
	   << ((S_IWUSR & mode)?"w":"-")  
	   << ((S_IXUSR & mode)?"x":"-")
	   << "\t" << S . st_size << "\t" 
	   << pEntry -> d_name << "\n";
      
    }
    
    CloseDir(pDir);
    
    return 0;
  }
  catch (const CExc & Exc) {
        cerr <<Exc<< endl;
        return errno;
  }
  catch (const exception & Exc) {
        cerr << "Exception : " << Exc.what () << endl;
        return 1;
  }
  catch (...) {
        cerr << "Exception inconnue recue dans la fonction main()" 
             << endl;
        return 1;
  }

} // main()