ls with Recursion

#include <stdio.h>
#include <stdlib.h>
#include <dirent.h>
#include <string.h>
void print_path(int recur, DIR *dirp)
{
    struct dirent *dptr;
    while (1)
    {
        dptr = readdir(dirp);
        if (!dptr)
            return;
        printf("%s\n", dptr->d_name);
        if (recur == 1)
        {
            char buff[256];
            if (strcmp(dptr->d_name, ".") == 0 && dptr->d_name == "..")
                continue;
            if (dptr && dptr->d_name != "." && dptr->d_name != "..")
                if (dptr->d_type == DT_DIR)
                {
                    DIR *dirp1 = opendir(dptr->d_name);
                    print_path(1, dirp1);
                    //      printf("dir : %s\n", dptr->d_name);
                    closedir(dirp1);
                }
        }
        //  printf("%d\n",dptr->d_type);
        //  printf("%s\n", dptr->d_name);
    }
}
int main()
{
    char buff[256];
    DIR *dirpath;
    struct dirent *dptr;
    scanf("%s", buff);
    if ((dirpath = opendir(buff)) == NULL)
    {
        printf("%s", "wrong path");
        exit(0);
    }
    else
    {
        dptr = readdir(dirpath);
        print_path(1, dirpath);
        //              while(dptr=readdir(dirpath)){
        //      while (1)
        //      {
        //       dptr = readdir(dirpath);
        //          if (!dptr)
        //              break;
        //          printf("%s\n", dptr->d_name);
        //          dptr++;
        //      }
        closedir(dirpath);
    }
}