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/*

 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for

 * unrestricted use provided that this legend is included on all tape

 * media and as a part of the software program in whole or part.  Users

 * may copy or modify Sun RPC without charge, but are not authorized

 * to license or distribute it to anyone else except as part of a product or

 * program developed by the user.

 *

 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE

 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.

 *

 * Sun RPC is provided with no support and without any obligation on the

 * part of Sun Microsystems, Inc. to assist in its use, correction,

 * modification or enhancement.

 *

 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE

 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC

 * OR ANY PART THEREOF.

 *

 * In no event will Sun Microsystems, Inc. be liable for any lost revenue

 * or profits or other special, indirect and consequential damages, even if

 * Sun has been advised of the possibility of such damages.

 *

 * Sun Microsystems, Inc.

 * 2550 Garcia Avenue

 * Mountain View, California  94043

 */

#if defined(LIBC_SCCS) && !defined(lint)

/*static char *sccsid = "from: @(#)auth_none.c 1.19 87/08/11 Copyr 1984 Sun Micro";*/

/*static char *sccsid = "from: @(#)auth_none.c  2.1 88/07/29 4.0 RPCSRC";*/

static char *rcsid = "$FreeBSD: src/lib/libc/rpc/auth_none.c,v 1.9 1999/08/28 00:00:32 peter Exp $";

#endif

/*

 * auth_none.c

 * Creates a client authentication handle for passing "null"

 * credentials and verifiers to remote systems.

 *

 * Copyright (C) 1984, Sun Microsystems, Inc.

 */

#include <stdlib.h>

#include <rpc/types.h>

#include <rpc/xdr.h>

#include <rpc/auth.h>

#define MAX_MARSHEL_SIZE 20

/*

 * Authenticator operations routines

 */

static void     authnone_verf();

static void     authnone_destroy();

static bool_t   authnone_marshal();

static bool_t   authnone_validate();

static bool_t   authnone_refresh();

static struct auth_ops ops = {

        authnone_verf,

        authnone_marshal,

        authnone_validate,

        authnone_refresh,

        authnone_destroy

};

static struct authnone_private {

        AUTH    no_client;

        char    marshalled_client[MAX_MARSHEL_SIZE];

        u_int   mcnt;

} *authnone_private;

AUTH *

authnone_create()

{

        register struct authnone_private *ap = authnone_private;

        XDR xdr_stream;

        register XDR *xdrs;

        if (ap == 0) {

                ap = (struct authnone_private *)calloc(1, sizeof (*ap));

                if (ap == 0)

                        return (0);

                authnone_private = ap;

        }

        if (!ap->mcnt) {

                ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth;

                ap->no_client.ah_ops = &ops;

                xdrs = &xdr_stream;

                xdrmem_create(xdrs, ap->marshalled_client, (u_int)MAX_MARSHEL_SIZE,

                    XDR_ENCODE);

                (void)xdr_opaque_auth(xdrs, &ap->no_client.ah_cred);

                (void)xdr_opaque_auth(xdrs, &ap->no_client.ah_verf);

                ap->mcnt = XDR_GETPOS(xdrs);

                XDR_DESTROY(xdrs);

        }

        return (&ap->no_client);

}

/*ARGSUSED*/

static bool_t

authnone_marshal(client, xdrs)

        AUTH *client;

        XDR *xdrs;

{

        register struct authnone_private *ap = authnone_private;

        if (ap == 0)

                return (0);

        return ((*xdrs->x_ops->x_putbytes)(xdrs,

            ap->marshalled_client, ap->mcnt));

}

static void

authnone_verf()

{

}

static bool_t

authnone_validate()

{

        return (TRUE);

}

static bool_t

authnone_refresh()

{

        return (FALSE);

}

static void

authnone_destroy()

{

}