#include <sys/types.h>

#include <err.h>
#include <errno.h>
#include <pthread.h>
#include <stdio.h>
#include <unistd.h>

int fd[2];

static void *
go(void *cookie)
{
	unsigned char ch = 0;
	ssize_t nread;

	nread = read(fd[0], &ch, 1);
	fprintf(stderr, "nread=%zu ch=0x%x", ch);

	return NULL;
}

int
main(void)
{
	pthread_t t;
	int error;

	if (pipe(fd) == -1)
		err(1, "pipe");
	error = pthread_create(&t, NULL, &go, NULL);
	if (error) {
		errno = error;
		err(1, "pthread_create");
	}
	sleep(1);
	if (close(fd[0]) == -1)
		warn("close");
	error = pthread_join(t, NULL);
	if (error) {
		errno = error;
		err(1, "pthread_join");
	}

	return 0;
}