How to hide . and .. folders in C?

Question

I'm trying to list all folders and all files of a folder with the language C.

This is the following code:

#include <errno.h>
#include <stdio.h>
#include <dirent.h>
#include <sys/stat.h>

int main (int argc, char *argv[])
{
    struct dirent *direnp;
    struct stat filestat;
    DIR *dirp;

    if (argc != 2) {
        printf("error");
        return 1;
    }

    if ((dirp = opendir(argv[1])) == NULL) {
        printf("error");
        return 1;
    }

    while ((direnp = readdir(dirp)) != NULL)
    {
        stat(direnp->d_name, &filestat);
        printf("%s\n", direnp->d_name); 
    }

    return 0;
}

After entering the cmd ./file.c folder

The output from this code is:

folder1
folder2
file1.txt
..
.
file2.txt

I wish to remove this part:

..
.

So the output I wish is:

folder1
folder2
file1.txt
file2.txt

How do I hide the 3 dots?

(Edit: There were some mistakes in the code. I corrected it)

Answer 1

Simply filter them in your while loop:

if (strcmp(direnp->d_name, ".") != 0 && strcmp(direnp->d_name, "..") != 0) {
   printf("%s\n", direnp->d_name);    
}