17c478bdstevel@tonic-gate/*
27c478bdstevel@tonic-gate * CDDL HEADER START
37c478bdstevel@tonic-gate *
47c478bdstevel@tonic-gate * The contents of this file are subject to the terms of the
57c478bdstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
67c478bdstevel@tonic-gate * (the "License").  You may not use this file except in compliance
77c478bdstevel@tonic-gate * with the License.
87c478bdstevel@tonic-gate *
97c478bdstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bdstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
117c478bdstevel@tonic-gate * See the License for the specific language governing permissions
127c478bdstevel@tonic-gate * and limitations under the License.
137c478bdstevel@tonic-gate *
147c478bdstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
157c478bdstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bdstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
177c478bdstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
187c478bdstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bdstevel@tonic-gate *
207c478bdstevel@tonic-gate * CDDL HEADER END
217c478bdstevel@tonic-gate */
227c478bdstevel@tonic-gate/*
237c478bdstevel@tonic-gate * Copyright (c) 2001 by Sun Microsystems, Inc.
247c478bdstevel@tonic-gate * All rights reserved.
257c478bdstevel@tonic-gate */
267c478bdstevel@tonic-gate
277c478bdstevel@tonic-gate#pragma ident	"%Z%%M%	%I%	%E% SMI"
287c478bdstevel@tonic-gate
297c478bdstevel@tonic-gate#include <sys/syscall.h>
307c478bdstevel@tonic-gate
317c478bdstevel@tonic-gate#include <project.h>
327c478bdstevel@tonic-gate#include <stdlib.h>
337c478bdstevel@tonic-gate#include <errno.h>
347c478bdstevel@tonic-gate
357c478bdstevel@tonic-gatestatic size_t
367c478bdstevel@tonic-gateprojlist(id_t *idbuf, size_t idbufsz)
377c478bdstevel@tonic-gate{
387c478bdstevel@tonic-gate	return (syscall(SYS_tasksys, 3, 0, 0, idbuf, idbufsz));
397c478bdstevel@tonic-gate}
407c478bdstevel@tonic-gate
417c478bdstevel@tonic-gateint
427c478bdstevel@tonic-gateproject_walk(int (*callback)(projid_t, void *), void *init_data)
437c478bdstevel@tonic-gate{
447c478bdstevel@tonic-gate	int ret = 0;
457c478bdstevel@tonic-gate	projid_t *projids = NULL;
467c478bdstevel@tonic-gate	projid_t *curr_projid;
477c478bdstevel@tonic-gate	size_t sz;
487c478bdstevel@tonic-gate	size_t osz = 0;
497c478bdstevel@tonic-gate
507c478bdstevel@tonic-gate	while ((sz = projlist(projids, osz * sizeof (projid_t))) != osz) {
517c478bdstevel@tonic-gate		osz = sz;
527c478bdstevel@tonic-gate		curr_projid = projids;
537c478bdstevel@tonic-gate		if ((projids = realloc(projids, sz * sizeof (projid_t)))
547c478bdstevel@tonic-gate		    == NULL) {
557c478bdstevel@tonic-gate			/*
567c478bdstevel@tonic-gate			 * If realloc() fails, we return ENOMEM.
577c478bdstevel@tonic-gate			 */
587c478bdstevel@tonic-gate			if (errno == EAGAIN)
597c478bdstevel@tonic-gate				errno = ENOMEM;
607c478bdstevel@tonic-gate			if (curr_projid != NULL)
617c478bdstevel@tonic-gate				free(curr_projid);
627c478bdstevel@tonic-gate			return (-1);
637c478bdstevel@tonic-gate		}
647c478bdstevel@tonic-gate	}
657c478bdstevel@tonic-gate
667c478bdstevel@tonic-gate	for (curr_projid = projids; curr_projid < projids + sz; curr_projid++) {
677c478bdstevel@tonic-gate		if (ret = callback(*curr_projid, init_data))
687c478bdstevel@tonic-gate			break;
697c478bdstevel@tonic-gate	}
707c478bdstevel@tonic-gate
717c478bdstevel@tonic-gate	free(projids);
727c478bdstevel@tonic-gate	return (ret);
737c478bdstevel@tonic-gate}
74