ofd = open (outputfile, O_WRONLY|O_CREAT|O_TRUNC|O_NOCTTY, 0644);
if (ofd == -1)
error (EXIT_FAILURE, errno, "open: %s", outputfile);
ofd = open (outputfile, O_WRONLY|O_CREAT|O_TRUNC|O_NOCTTY, 0644);
if (ofd == -1)
error (EXIT_FAILURE, errno, "open: %s", outputfile);