-/* Return maximum number of open files */
-int
-get_max_open_files ()
-{
-#if defined _SC_OPEN_MAX
- return sysconf (_SC_OPEN_MAX);
-#elif defined RLIMIT_NOFILE
- struct rlimit rlim;
-
- if (getrlimit(RLIMIT_NOFILE, &rlim) == 0)
- return rlim.rlim_max;
- return -1;
-#elif defined HAVE_GETDTABLESIZE
- return getdtablesize ();
-#else
- return -1;
-#endif
-}
-
-/* Close all descriptors, except the first three */
-void
-closeopen ()
-{
- int i;
-
- for (i = get_max_open_files () - 1; i > 2; i--)
- close (i);
-}
-