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authorRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
committerRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
commit28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch)
tree15f07c4c43d635959c6afee96bde71fb1b3614ee /sysdeps/mach/hurd/setrlimit.c
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initial import
Diffstat (limited to 'sysdeps/mach/hurd/setrlimit.c')
-rw-r--r--sysdeps/mach/hurd/setrlimit.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/setrlimit.c b/sysdeps/mach/hurd/setrlimit.c
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+++ b/sysdeps/mach/hurd/setrlimit.c
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+/* Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <hurd.h>
+#include <hurd/resource.h>
+#include <errno.h>
+#include <hurd/fd.h>
+
+
+/* Set the soft and hard limits for RESOURCE to *RLIMITS.
+   Only the super-user can increase hard limits.
+   Return 0 if successful, -1 if not (and sets errno).  */
+int
+DEFUN(setrlimit, (resource, rlimits),
+      enum __rlimit_resource resource AND struct rlimit *rlimits)
+{
+  struct rlimit lim;
+
+  if (rlimits == NULL || (unsigned int) resource >= RLIMIT_NLIMITS)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  lim = *rlimits;
+
+  if (lim.rlim_max != RLIM_INFINITY)
+    {
+      /* We have no enforceable resource limits.  */
+      errno = ENOSYS;
+      return -1;
+    }
+
+  if (lim.rlim_cur > lim.rlim_max)
+    lim.rlim_cur = lim.rlim_max;
+
+  __mutex_lock (&_hurd_rlimit_lock);
+  _hurd_rlimits[resource] = lim;
+  __mutex_unlock (&_hurd_rlimit_lock);
+
+  return 0;
+}