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
32 * Copyright 1990 Sun Microsystems, Inc.
34 * General purpose routine to see how much space something will use
35 * when serialized using XDR.
38 #include <sys/cdefs.h>
39 __FBSDID("$FreeBSD$");
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/malloc.h>
45 #include <rpc/types.h>
50 x_putlong(XDR *xdrs, const long *longp)
53 xdrs->x_handy += BYTES_PER_XDR_UNIT;
59 x_putbytes(XDR *xdrs, const char *bp, u_int len)
70 return (xdrs->x_handy);
75 x_setpostn(XDR *xdrs, u_int pos)
78 /* This is not allowed */
83 x_inline(XDR *xdrs, u_int len)
89 if (xdrs->x_op != XDR_ENCODE) {
92 if (len < (u_int)(uintptr_t)xdrs->x_base) {
93 /* x_private was already allocated */
95 return ((int32_t *) xdrs->x_private);
97 /* Free the earlier space and allocate new area */
99 free(xdrs->x_private, M_RPC);
100 if ((xdrs->x_private = (caddr_t) malloc(len, M_RPC, M_WAITOK)) == NULL) {
104 xdrs->x_base = (caddr_t)(uintptr_t) len;
105 xdrs->x_handy += len;
106 return ((int32_t *) xdrs->x_private);
114 /* Always return FALSE/NULL, as the case may be */
124 if (xdrs->x_private) {
125 free(xdrs->x_private, M_RPC);
126 xdrs->x_private = NULL;
132 xdr_sizeof(xdrproc_t func, void *data)
137 /* to stop ANSI-C compiler from complaining */
138 typedef bool_t (* dummyfunc1)(XDR *, long *);
139 typedef bool_t (* dummyfunc2)(XDR *, caddr_t, u_int);
141 ops.x_putlong = x_putlong;
142 ops.x_putbytes = x_putbytes;
143 ops.x_inline = x_inline;
144 ops.x_getpostn = x_getpostn;
145 ops.x_setpostn = x_setpostn;
146 ops.x_destroy = x_destroy;
148 /* the other harmless ones */
149 ops.x_getlong = (dummyfunc1) harmless;
150 ops.x_getbytes = (dummyfunc2) harmless;
155 x.x_private = (caddr_t) NULL;
156 x.x_base = (caddr_t) 0;
158 stat = func(&x, data);
160 free(x.x_private, M_RPC);
161 return (stat == TRUE ? (unsigned) x.x_handy: 0);