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

int
main(int argc, char** argv)
{
        const char* filename = "temp.fifo";

        if (mkfifo("temp.fifo", S_IRWXU) != 0) {
                perror("mkfifo error");
                return 1;
        }

        int rfd = open(filename, O_RDONLY | O_NONBLOCK);
        if (rfd < 0) {
                perror("open() error");
                return 1;
        }

        DIR* dir = opendir(filename);
        if (dir != NULL) {
                perror("opendir succeeded");
                return 1;
        }

        dir = fdopendir(rfd);
        if (dir != NULL) {
                perror("fdopendir succeeded");
                return 1;
        }

        unlink(filename);
        return 0;
}