_3.openreaddir.c

#include <stdio.h>
#include <dirent.h>
#include <stdlib.h>

struct dirent *dptr;

int main(int argc, char *argv[]) {
    char buff[256];
    DIR *dirp;
    printf("Enter directory : ");
    scanf("%s", buff);
    if((dirp=opendir(buff))==NULL){
        printf("Error\n");
        exit(1);
    }
    while(dptr=readdir(dirp)){
        printf("%s\n", dptr->d_name);
    }
    closedir(dirp);
    return 0;
}