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

#define MSG_SIZE 80
#define PIPENAME "./tmp/named_pipe_file"

int main(void) {
  char msg[MSG_SIZE];
  int fd;
  int nread, i;


  if ((fd = open(PIPENAME, O_WRONLY)) < 0) {
    printf("fail to open named pipe\n");
    return 0;
  }


  for (i = 0; i < 3; i++) {

    fgets(msg, MSG_SIZE, stdin);

    if ((nread = write(fd, msg, sizeof(msg))) < 0 ) {
      printf("fail to call write()\n");
      return 0;
    }

  }

  return 0;
}