#define _POSIX_SOURCE
#include <dirent.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/types.h>
#undef _POSIX_SOURCE
#include <stdio.h>

void traverse(char *fn, int indent) 
{
  	DIR *dir;
  	struct dirent *entry;
  	int count;
  	char path[1025];
  	struct stat info;

  	for (count=0; count<indent; count++) 	
		printf("  ");
  	printf("%s\n", fn);

  	if ((dir = opendir(fn)) == NULL)
    		perror("opendir() error");
  	else 
	{
    		while ((entry = readdir(dir)) != NULL) 
		{
	      		if (entry->d_name[0] != '.') 
			{
        			strcpy(path, fn);
        			strcat(path, "/");
        			strcat(path, entry->d_name);
        			if (stat(path, &info) != 0)
          				fprintf(stderr, "stat() error on %s: %s\n", path,
                  		strerror(errno));
        			else if (S_ISDIR(info.st_mode))
               				traverse(path, indent+1);
      			}
    		}
    		closedir(dir);
  	}
}

int main() 
{
  	puts("Directory structure:");
  	traverse("/home/pramod/Desktop/", 5);
}