#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

char *fin = "/tmp/hoge";

int main(void)
{
  struct stat stb;
  fd_set f;

  unlink(fin);
  (void)alarm(5);
  if (mknod(fin, S_IFIFO|0777, 0))
    exit(1);
  if (stat(fin, &stb) || (stb.st_mode & S_IFIFO) != S_IFIFO)
    exit(1);
  close(0);
  if (open(fin, O_RDONLY | O_NONBLOCK))
    exit(1);
  if (fork() == 0)
    {
#ifndef CHECK
      close(0);
      if (open(fin, O_WRONLY | O_NONBLOCK))
	exit(1);
#endif
      close(0);
      if (open(fin, O_WRONLY | O_NONBLOCK))
	exit(1);
      if (write(0, "TEST", 4) == -1)
	exit(1);
      exit(0);
    }
  FD_SET(0, &f);
  if (select(1, &f, 0, 0, 0) == -1)
    exit(1);
  exit(0);
}