1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <rpc/types.h>
30*0Sstevel@tonic-gate #include <rpc/xdr.h>
31*0Sstevel@tonic-gate #include <sys/types.h>
32*0Sstevel@tonic-gate
33*0Sstevel@tonic-gate /* ARGSUSED */
34*0Sstevel@tonic-gate static bool_t
x_putint32_t(XDR * xdrs,int32_t * ip)35*0Sstevel@tonic-gate x_putint32_t(XDR *xdrs, int32_t *ip)
36*0Sstevel@tonic-gate {
37*0Sstevel@tonic-gate xdrs->x_handy += BYTES_PER_XDR_UNIT;
38*0Sstevel@tonic-gate return (TRUE);
39*0Sstevel@tonic-gate }
40*0Sstevel@tonic-gate
41*0Sstevel@tonic-gate /* ARGSUSED */
42*0Sstevel@tonic-gate static bool_t
x_putbytes(XDR * xdrs,char * bp,int len)43*0Sstevel@tonic-gate x_putbytes(XDR *xdrs, char *bp, int len)
44*0Sstevel@tonic-gate {
45*0Sstevel@tonic-gate xdrs->x_handy += len;
46*0Sstevel@tonic-gate return (TRUE);
47*0Sstevel@tonic-gate }
48*0Sstevel@tonic-gate
49*0Sstevel@tonic-gate static uint_t
x_getpostn(XDR * xdrs)50*0Sstevel@tonic-gate x_getpostn(XDR *xdrs)
51*0Sstevel@tonic-gate {
52*0Sstevel@tonic-gate return (xdrs->x_handy);
53*0Sstevel@tonic-gate }
54*0Sstevel@tonic-gate
55*0Sstevel@tonic-gate /* ARGSUSED */
56*0Sstevel@tonic-gate static bool_t
x_setpostn(XDR * xdrs,uint_t pos)57*0Sstevel@tonic-gate x_setpostn(XDR *xdrs, uint_t pos)
58*0Sstevel@tonic-gate {
59*0Sstevel@tonic-gate /* This is not allowed */
60*0Sstevel@tonic-gate return (FALSE);
61*0Sstevel@tonic-gate }
62*0Sstevel@tonic-gate
63*0Sstevel@tonic-gate static rpc_inline_t *
x_inline(XDR * xdrs,int len)64*0Sstevel@tonic-gate x_inline(XDR *xdrs, int len)
65*0Sstevel@tonic-gate {
66*0Sstevel@tonic-gate if (len == 0) {
67*0Sstevel@tonic-gate return (NULL);
68*0Sstevel@tonic-gate }
69*0Sstevel@tonic-gate if (xdrs->x_op != XDR_ENCODE) {
70*0Sstevel@tonic-gate return (NULL);
71*0Sstevel@tonic-gate }
72*0Sstevel@tonic-gate if (len < (uintptr_t)xdrs->x_base) {
73*0Sstevel@tonic-gate /* x_private was already allocated */
74*0Sstevel@tonic-gate xdrs->x_handy += len;
75*0Sstevel@tonic-gate return ((rpc_inline_t *)xdrs->x_private);
76*0Sstevel@tonic-gate } else {
77*0Sstevel@tonic-gate /* Free the earlier space and allocate new area */
78*0Sstevel@tonic-gate if (xdrs->x_private)
79*0Sstevel@tonic-gate mem_free(xdrs->x_private, (uintptr_t)xdrs->x_base);
80*0Sstevel@tonic-gate if ((xdrs->x_private = (caddr_t)mem_alloc(len)) == NULL) {
81*0Sstevel@tonic-gate xdrs->x_base = 0;
82*0Sstevel@tonic-gate return (NULL);
83*0Sstevel@tonic-gate }
84*0Sstevel@tonic-gate xdrs->x_base = (caddr_t)(uintptr_t)len;
85*0Sstevel@tonic-gate xdrs->x_handy += len;
86*0Sstevel@tonic-gate return ((rpc_inline_t *)xdrs->x_private);
87*0Sstevel@tonic-gate }
88*0Sstevel@tonic-gate }
89*0Sstevel@tonic-gate
90*0Sstevel@tonic-gate static int
harmless()91*0Sstevel@tonic-gate harmless()
92*0Sstevel@tonic-gate {
93*0Sstevel@tonic-gate /* Always return FALSE/NULL, as the case may be */
94*0Sstevel@tonic-gate return (0);
95*0Sstevel@tonic-gate }
96*0Sstevel@tonic-gate
97*0Sstevel@tonic-gate static void
x_destroy(XDR * xdrs)98*0Sstevel@tonic-gate x_destroy(XDR *xdrs)
99*0Sstevel@tonic-gate {
100*0Sstevel@tonic-gate xdrs->x_handy = 0;
101*0Sstevel@tonic-gate if (xdrs->x_private) {
102*0Sstevel@tonic-gate mem_free(xdrs->x_private, (uintptr_t)xdrs->x_base);
103*0Sstevel@tonic-gate xdrs->x_private = NULL;
104*0Sstevel@tonic-gate }
105*0Sstevel@tonic-gate xdrs->x_base = 0;
106*0Sstevel@tonic-gate }
107*0Sstevel@tonic-gate
108*0Sstevel@tonic-gate unsigned int
xdr_sizeof(xdrproc_t func,void * data)109*0Sstevel@tonic-gate xdr_sizeof(xdrproc_t func, void *data)
110*0Sstevel@tonic-gate {
111*0Sstevel@tonic-gate XDR x;
112*0Sstevel@tonic-gate struct xdr_ops ops;
113*0Sstevel@tonic-gate bool_t stat;
114*0Sstevel@tonic-gate /* to stop ANSI-C compiler from complaining */
115*0Sstevel@tonic-gate typedef bool_t (* dummyfunc1)(XDR *, long *);
116*0Sstevel@tonic-gate typedef bool_t (* dummyfunc2)(XDR *, caddr_t, int);
117*0Sstevel@tonic-gate typedef bool_t (* dummyfunc3)(XDR *, int32_t *);
118*0Sstevel@tonic-gate typedef bool_t (* dummyfunc4)(XDR *, int, void *);
119*0Sstevel@tonic-gate
120*0Sstevel@tonic-gate ops.x_putbytes = x_putbytes;
121*0Sstevel@tonic-gate ops.x_inline = x_inline;
122*0Sstevel@tonic-gate ops.x_getpostn = x_getpostn;
123*0Sstevel@tonic-gate ops.x_setpostn = x_setpostn;
124*0Sstevel@tonic-gate ops.x_destroy = x_destroy;
125*0Sstevel@tonic-gate
126*0Sstevel@tonic-gate #if defined(_LP64) || defined(_KERNEL)
127*0Sstevel@tonic-gate ops.x_getint32 = (dummyfunc3)harmless;
128*0Sstevel@tonic-gate ops.x_putint32 = x_putint32_t;
129*0Sstevel@tonic-gate #endif
130*0Sstevel@tonic-gate
131*0Sstevel@tonic-gate /* the other harmless ones */
132*0Sstevel@tonic-gate ops.x_getbytes = (dummyfunc2)harmless;
133*0Sstevel@tonic-gate ops.x_control = (dummyfunc4)harmless;
134*0Sstevel@tonic-gate
135*0Sstevel@tonic-gate x.x_op = XDR_ENCODE;
136*0Sstevel@tonic-gate x.x_ops = &ops;
137*0Sstevel@tonic-gate x.x_handy = 0;
138*0Sstevel@tonic-gate x.x_private = (caddr_t)NULL;
139*0Sstevel@tonic-gate
140*0Sstevel@tonic-gate stat = func(&x, data);
141*0Sstevel@tonic-gate if (x.x_private)
142*0Sstevel@tonic-gate mem_free(x.x_private, (uintptr_t)x.x_base);
143*0Sstevel@tonic-gate x.x_base = (caddr_t)0;
144*0Sstevel@tonic-gate return (stat == TRUE ? (unsigned int)x.x_handy: 0);
145*0Sstevel@tonic-gate }
146