2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part. Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user.
9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
13 * Sun RPC is provided with no support and without any obligation on the
14 * part of Sun Microsystems, Inc. to assist in its use, correction,
15 * modification or enhancement.
17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22 * or profits or other special, indirect and consequential damages, even if
23 * Sun has been advised of the possibility of such damages.
25 * Sun Microsystems, Inc.
27 * Mountain View, California 94043
29 * $DragonFly: src/lib/libc/xdr/xdr_sizeof.c,v 1.2 2005/12/05 00:47:57 swildner Exp $
35 * Copyright 1990 Sun Microsystems, Inc.
37 * General purpose routine to see how much space something will use
38 * when serialized using XDR.
41 #include <rpc/types.h>
43 #include <sys/types.h>
48 x_putlong(XDR *xdrs, long *longp __unused)
50 xdrs->x_handy += BYTES_PER_XDR_UNIT;
56 x_putbytes(XDR *xdrs, char *bp __unused, u_int len)
65 return (xdrs->x_handy);
70 x_setpostn(XDR *xdrs __unused, u_int pos __unused)
72 /* This is not allowed */
77 x_inline(XDR *xdrs, long len)
82 if (xdrs->x_op != XDR_ENCODE) {
85 if (len < (long) xdrs->x_base) {
86 /* x_private was already allocated */
88 return ((int32_t *) xdrs->x_private);
90 /* Free the earlier space and allocate new area */
92 free(xdrs->x_private);
93 if ((xdrs->x_private = (caddr_t) malloc(len)) == NULL) {
97 xdrs->x_base = (caddr_t) len;
99 return ((int32_t *) xdrs->x_private);
106 /* Always return FALSE/NULL, as the case may be */
115 if (xdrs->x_private) {
116 free(xdrs->x_private);
117 xdrs->x_private = NULL;
123 xdr_sizeof(xdrproc_t func, void *data)
128 /* to stop ANSI-C compiler from complaining */
129 typedef bool_t (* dummyfunc1)(XDR *, long *);
130 typedef bool_t (* dummyfunc2)(XDR *, caddr_t, u_int);
132 ops.x_putlong = x_putlong;
133 ops.x_putbytes = x_putbytes;
134 ops.x_inline = x_inline;
135 ops.x_getpostn = x_getpostn;
136 ops.x_setpostn = x_setpostn;
137 ops.x_destroy = x_destroy;
139 /* the other harmless ones */
140 ops.x_getlong = (dummyfunc1) harmless;
141 ops.x_getbytes = (dummyfunc2) harmless;
146 x.x_private = (caddr_t) NULL;
147 x.x_base = (caddr_t) 0;
149 stat = func(&x, data);
152 return (stat == TRUE ? (unsigned) x.x_handy: 0);