source: rtems-libbsd/services/librpc/src/rpc/auth_none.c @ cd450d2

/*
 * 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.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <freebsd/bsd.h>
#include <rpc/types.h>
#include <rpc/xdr.h>
#include <rpc/auth.h>
#define MAX_MARSHAL_SIZE 20

/*
 * Authenticator operations routines
 */
static void     authnone_verf(AUTH*);
static void     authnone_destroy(AUTH*);
static int      authnone_marshal(AUTH*, XDR*);
static int      authnone_validate(AUTH*, struct opaque_auth *);
static int      authnone_refresh(AUTH*);

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_MARSHAL_SIZE];
        u_int   mcnt;
} *authnone_private;

AUTH *
authnone_create(void)
{
        struct authnone_private *ap = authnone_private;
        XDR xdr_stream;
        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_MARSHAL_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 int
authnone_marshal(AUTH *client, XDR *xdrs)
{
        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(AUTH *client)
{
}

static int
authnone_validate(AUTH *client, struct opaque_auth *opaque)
{

        return (TRUE);
}

static int
authnone_refresh(AUTH *client)
{

        return (FALSE);
}

static void
authnone_destroy(AUTH *client)
{
}