1 files changed, 69 insertions, 0 deletions
diff --git a/usr.bin/ssh/fdlim.h b/usr.bin/ssh/fdlim.h
new file mode 100644
index 00000000000..eec041b2c5b
--- /dev/null
+++ b/usr.bin/ssh/fdlim.h
@@ -0,0 +1,69 @@
+/*
+
+fdlim.h
+
+Author: David Mazieres <dm@lcs.mit.edu>
+	Contributed to be part of ssh.
+
+Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
+                   All rights reserved
+
+Created: Tue Aug 22 17:21:32 1995 ylo
+
+*/
+
+/* RCSID("$Id: fdlim.h,v 1.1 1999/09/26 20:53:36 deraadt Exp $"); */
+
+#ifndef FDLIM_H
+#define FDLIM_H
+
+static int
+fdlim_get (int hard)
+{
+#ifdef RLIMIT_NOFILE
+  struct rlimit rlfd;
+  if (getrlimit (RLIMIT_NOFILE, &rlfd) < 0)
+    return (-1);
+#ifdef RLIM_INFINITY /* not defined on HPSUX */
+  if ((hard ? rlfd.rlim_max : rlfd.rlim_cur) == RLIM_INFINITY)
+    return 10000;
+  else
+    return hard ? rlfd.rlim_max : rlfd.rlim_cur;
+#else /* RLIM_INFINITY */
+  return hard ? rlfd.rlim_max : rlfd.rlim_cur;
+#endif /* RLIM_INFINITY */
+#else /* !RLIMIT_NOFILE */
+#ifdef HAVE_GETDTABLESIZE
+  return (getdtablesize ());
+#else /* !HAVE_GETDTABLESIZE */
+#ifdef _SC_OPEN_MAX
+  return (sysconf (_SC_OPEN_MAX));
+#else /* !_SC_OPEN_MAX */
+#ifdef NOFILE
+  return (NOFILE);
+#else /* !NOFILE */
+  return (25);
+#endif /* !NOFILE */
+#endif /* !_SC_OPEN_MAX */
+#endif /* !HAVE_GETDTABLESIZE */
+#endif /* !RLIMIT_NOFILE */
+}
+
+static int
+fdlim_set (int lim) {
+#ifdef RLIMIT_NOFILE
+  struct rlimit rlfd;
+  if (lim <= 0)
+    return (-1);
+  if (getrlimit (RLIMIT_NOFILE, &rlfd) < 0)
+    return (-1);
+  rlfd.rlim_cur = lim;
+  if (setrlimit (RLIMIT_NOFILE, &rlfd) < 0)
+    return (-1);
+  return (0);
+#else /* !RLIMIT_NOFILE */
+  return (-1);
+#endif /* !RLIMIT_NOFILE */
+}
+
+#endif /* FDLIM_H */