authunix_prot.c

<B>Digital的Unix操作系统VAX 4.2源码</B>

#ifndef lint
static char *sccsid = "@(#)authunix_prot.c	4.1	ULTRIX	7/3/90";
#endif lint

/************************************************************************
 *									*
 *			Copyright (c) 1986 by				*
 *		Digital Equipment Corporation, Maynard, MA		*
 *			All rights reserved.				*
 *									*
 *   This software is furnished under a license and may be used and	*
 *   copied  only  in accordance with the terms of such license and	*
 *   with the  inclusion  of  the  above  copyright  notice.   This	*
 *   software  or  any  other copies thereof may not be provided or	*
 *   otherwise made available to any other person.  No title to and	*
 *   ownership of the software is hereby transferred.			*
 *									*
 *   This software is  derived  from  software  received  from  the	*
 *   University    of   California,   Berkeley,   and   from   Bell	*
 *   Laboratories.  Use, duplication, or disclosure is  subject  to	*
 *   restrictions  under  license  agreements  with  University  of	*
 *   California and with AT&T.						*
 *									*
 *   The information in this software is subject to change  without	*
 *   notice  and should not be construed as a commitment by Digital	*
 *   Equipment Corporation.						*
 *									*
 *   Digital assumes no responsibility for the use  or  reliability	*
 *   of its software on equipment which is not supplied by Digital.	*
 *									*
 ************************************************************************/

/*
 *	Portions of this software have been licensed to 
 *	Digital Equipment Company, Maynard, MA.
 *	Copyright (c) 1986 Sun Microsystems, Inc.  ALL RIGHTS RESERVED.
 */

/*
 * authunix_prot.c
 * XDR for UNIX style authentication parameters for RPC
 *
 */

#ifdef KERNEL
#include "../h/param.h"
#include "../h/systm.h"
#include "../h/user.h"
#include "../h/kernel.h"
#include "../h/proc.h"
#include "../rpc/types.h"
#include "../rpc/xdr.h"
#include "../rpc/auth.h"
#include "../rpc/auth_unix.h"
#else
#include <rpc/types.h>
#include <rpc/xdr.h>
#include <rpc/auth.h>
#include <rpc/auth_unix.h>
#endif

/*
 * XDR for unix authentication parameters.
 */
bool_t
xdr_authunix_parms(xdrs, p)
	register XDR *xdrs;
	register struct authunix_parms *p;
{

	if (xdr_u_long(xdrs, &(p->aup_time))
	    && xdr_string(xdrs, &(p->aup_machname), MAX_MACHINE_NAME)
	    && xdr_int(xdrs, &(p->aup_uid))
	    && xdr_int(xdrs, &(p->aup_gid))
	    && xdr_array(xdrs, (caddr_t *)&(p->aup_gids),
		    &(p->aup_len), NGRPS, sizeof(int), xdr_int) ) {
		return (TRUE);
	}
	return (FALSE);
}

#ifdef KERNEL
/*
 * XDR kernel unix auth parameters.
 * Goes out of the u struct directly.
 * NOTE: this is an XDR_ENCODE only routine.
 */
xdr_authkern(xdrs)
	register XDR *xdrs;
{
	int	*gp;
	int	 uid = u.u_uid;
	int	 gid = u.u_gid;
	int	 len;
	caddr_t	groups;
	char	*name = hostname;

	if (xdrs->x_op != XDR_ENCODE) {
		return (FALSE);
	}

	for (gp = &u.u_groups[NGRPS]; gp > u.u_groups; gp--) {
		if (gp[-1] >= 0) {
			break;
		}
	}
	len = gp - u.u_groups;
	groups = (caddr_t)u.u_groups;
        if (xdr_u_long(xdrs, (u_long *)&time.tv_sec)
            && xdr_string(xdrs, &name, MAX_MACHINE_NAME)
            && xdr_int(xdrs, &uid)
            && xdr_int(xdrs, &gid)
	    && xdr_array(xdrs, &groups, (u_int *)&len, NGRPS, sizeof (int), xdr_int) ) {
                return (TRUE);
	}
	return (FALSE);
}
#endif