1 files changed, 74 insertions, 0 deletions
diff --git a/libps/filters.c b/libps/filters.c
new file mode 100644
index 00000000..0dff3dfa
--- /dev/null
+++ b/libps/filters.c
@@ -0,0 +1,74 @@
+/* Some ps_filter_t's to restrict proc_stat_list's in various ways.
+
+   Copyright (C) 1995 Free Software Foundation, Inc.
+
+   Written by Miles Bader <miles@gnu.ai.mit.edu>
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
+
+   This program 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
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <hurd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <pwd.h>
+
+#include "ps.h"
+#include "common.h"
+
+/* ---------------------------------------------------------------- */
+
+static bool 
+ps_own_p(proc_stat_t ps)
+{
+  static int own_uid = -1;
+  if (own_uid < 0)
+    own_uid = getuid();
+  return own_uid == proc_stat_info(ps)->owner;
+}
+struct ps_filter ps_own_filter =
+{"own", PSTAT_INFO, ps_own_p};
+
+static bool 
+ps_not_sess_leader_p(proc_stat_t ps)
+{
+  return !(proc_stat_state(ps) & PSTAT_STATE_SESSLDR);
+}
+struct ps_filter ps_not_sess_leader_filter =
+{"not-sess-leader", PSTAT_STATE, ps_not_sess_leader_p};
+
+static bool 
+ps_unorphaned_p(proc_stat_t ps)
+{
+  int state = proc_stat_state(ps);
+  return !(state & PSTAT_STATE_ORPHANED) || (state & PSTAT_STATE_SESSLDR);
+}
+struct ps_filter ps_unorphaned_filter =
+{"unorphaned", PSTAT_STATE, ps_unorphaned_p};
+
+static bool 
+ps_ctty_p(proc_stat_t ps)
+{
+  return proc_stat_cttyid(ps) != MACH_PORT_NULL;
+}
+struct ps_filter ps_ctty_filter =
+{"ctty", PSTAT_CTTYID, ps_ctty_p};
+
+static bool 
+ps_parent_p(proc_stat_t ps)
+{
+  return !(proc_stat_state(ps) & PSTAT_STATE_NOPARENT);
+}
+struct ps_filter ps_parent_filter =
+{"parent", PSTAT_STATE, ps_parent_p};