return n;
}
-/**
- * Ensure that file descriptors 0, 1, and 2 are valid.
- *
- * Common approach that opens /dev/null until it gets a file descriptor greater
- * than two.
- *
- * \sa okir's Black Hats Manual.
- */
-void valid_fd_012(void)
-{
- while (1) {
- int fd = open("/dev/null", O_RDWR);
- if (fd < 0)
- exit(EXIT_FAILURE);
- if (fd > 2) {
- close(fd);
- break;
- }
- }
-}
-
/**
* Get the own hostname.
*