Index: uspace/lib/c/generic/ps.c
===================================================================
--- uspace/lib/c/generic/ps.c	(revision ea55bc4de5768018b35ca09e60ec4f2e79c979d0)
+++ uspace/lib/c/generic/ps.c	(revision ea55bc4de5768018b35ca09e60ec4f2e79c979d0)
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2010 Stanislav Kozina
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup libc
+ * @{
+ */
+/** @file
+ */
+
+#include <task.h>
+#include <thread.h>
+#include <ps.h>
+#include <libc.h>
+
+/** Get the list of task ids.
+ *
+ * @param ids		Pointer to space where list of ids will be stored.
+ * @param size		Total size of allocated space under ids.
+ *
+ * @return		Count of written task ids. If higher than size, there
+ * 			was not enough space.
+ *
+ */
+size_t get_task_ids(task_id_t *ids, size_t size)
+{
+	return __SYSCALL2(SYS_PS_GET_TASKS, (sysarg_t) ids, (sysarg_t) size);
+}
+
+/** Get task info.
+ *
+ * @param id		Id of the task to get info about.
+ * @param info		Pointer to out info struct.
+ *
+ * @return		0 on success.
+ *
+ */
+int get_task_info(task_id_t id, task_info_t *info)
+{
+	return __SYSCALL2(SYS_PS_GET_TASK_INFO, (sysarg_t) &id, (sysarg_t) info);
+}
+
+/** Get thread infos of the selected task.
+ *
+ * @param taskid 	Id of the selected task.
+ * @param infos		Pointer to out array of thread_info_t structures.
+ * @param size		Size of the infos array.
+ *
+ * @return 		0 on success.
+ *
+ */
+int get_task_threads(task_id_t taskid, thread_info_t *infos, size_t size)
+{
+	return __SYSCALL3(SYS_PS_GET_THREADS, (sysarg_t) &taskid, (sysarg_t) infos,
+			(sysarg_t) size);
+}
+
+/** @}
+ */