/*	$NetBSD: gss_indicate_mechs.c,v 1.2 2017/01/28 21:31:46 christos Exp $	*/

/*-
 * Copyright (c) 2005 Doug Rabson
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
 *
 *	$FreeBSD: src/lib/libgssapi/gss_indicate_mechs.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
 */

#include "mech_locl.h"

GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gss_indicate_mechs(OM_uint32 *minor_status,
    gss_OID_set *mech_set)
{
	struct _gss_mech_switch *m;
	OM_uint32 major_status;
	gss_OID_set set;
	size_t i;

	_gss_load_mech();

	major_status = gss_create_empty_oid_set(minor_status, mech_set);
	if (major_status)
		return (major_status);

        /* XXX We ignore ENOMEM from gss_add_oid_set_member() */
	HEIM_SLIST_FOREACH(m, &_gss_mechs, gm_link) {
		if (m->gm_mech.gm_indicate_mechs) {
			major_status = m->gm_mech.gm_indicate_mechs(
			    minor_status, &set);
			if (major_status)
				continue;
			for (i = 0; i < set->count; i++)
				gss_add_oid_set_member(
				    minor_status, &set->elements[i], mech_set);
			gss_release_oid_set(minor_status, &set);
		} else {
			gss_add_oid_set_member(
			    minor_status, &m->gm_mech_oid, mech_set);
		}
	}

	*minor_status = 0;
	return (GSS_S_COMPLETE);
}