#include <iostream>
#include <stdio.h>      // perror
#include <sys/types.h>  // opendir 
#include <dirent.h>     // opendir


using namespace std;

void DoDir(string dirname);

int main(int argc, char * argv[]) {
    int i;

    if (argc > 1) {
        for (i=1;i<argc;i++) {
	   DoDir(argv[i]) ;
	}
    } else {
        DoDir(".");
    }

    return 0;
}

void DoDir(string dirname){
    DIR * dir;
    dirent * entry;

    cout << endl;
    cout << "Processing " << dirname << endl;

    dir = opendir(dirname.c_str());
    if (NULL==dir) {
        perror("opendir failed");
	cout << "Could not open " << dirname << endl;
    } else {

        while (entry = readdir(dir)) {
	    cout << "\t" << entry->d_name << endl;
	}

        if (-1 == closedir(dir)) {
	    perror("closedir: ");
	}
    }
    cout << endl;

    return;
}