2 * SPDX-License-Identifier: BSD-3-Clause
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36 * General purpose routine to see how much space something will use
37 * when serialized using XDR.
40 #include <sys/cdefs.h>
41 __FBSDID("$FreeBSD$");
43 #include "namespace.h"
44 #include <rpc/types.h>
46 #include <sys/types.h>
48 #include "un-namespace.h"
52 x_putlong(XDR *xdrs, const long *longp)
54 xdrs->x_handy += BYTES_PER_XDR_UNIT;
60 x_putbytes(XDR *xdrs, const char *bp, u_int len)
69 return (xdrs->x_handy);
74 x_setpostn(XDR *xdrs, u_int pos)
76 /* This is not allowed */
81 x_inline(XDR *xdrs, u_int len)
86 if (xdrs->x_op != XDR_ENCODE) {
89 if (len < (u_int)(uintptr_t)xdrs->x_base) {
90 /* x_private was already allocated */
92 return ((int32_t *) xdrs->x_private);
94 /* Free the earlier space and allocate new area */
96 free(xdrs->x_private);
97 if ((xdrs->x_private = (caddr_t) malloc(len)) == NULL) {
101 xdrs->x_base = (caddr_t)(uintptr_t)len;
102 xdrs->x_handy += len;
103 return ((int32_t *) xdrs->x_private);
110 /* Always return FALSE/NULL, as the case may be */
119 if (xdrs->x_private) {
120 free(xdrs->x_private);
121 xdrs->x_private = NULL;
127 xdr_sizeof(xdrproc_t func, void *data)
132 /* to stop ANSI-C compiler from complaining */
133 typedef bool_t (* dummyfunc1)(XDR *, long *);
134 typedef bool_t (* dummyfunc2)(XDR *, caddr_t, u_int);
136 ops.x_putlong = x_putlong;
137 ops.x_putbytes = x_putbytes;
138 ops.x_inline = x_inline;
139 ops.x_getpostn = x_getpostn;
140 ops.x_setpostn = x_setpostn;
141 ops.x_destroy = x_destroy;
143 /* the other harmless ones */
144 ops.x_getlong = (dummyfunc1) harmless;
145 ops.x_getbytes = (dummyfunc2) harmless;
150 x.x_private = (caddr_t) NULL;
151 x.x_base = (caddr_t) 0;
153 stat = func(&x, data);
156 return (stat == TRUE ? (unsigned) x.x_handy: 0);