Page History

char sfn[] = "temp-XXXXXX";
FILE *sfp;
int fd = mkstemp(sfn);
if (fd == -1) {
  /* Handle Error */
}

/*
 * Unlink immediately to allowhide the name to be recycledfile name.
 * The race condition here is inconsequential if the file
 * is created with exclusive permissions (glibc >= 2.0.7)
 */

unlink(sfn);

sfp = fdopen(fd, "w+");
if (sfp == NULL) {
  close(fd);
  /* Handle Error */
}

/* use temporary file */

fclose(sfp); /* also closes fd */