4 * Copyright 1990 Sun Microsystems, Inc.
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7 * modification, are permitted provided that the following conditions are
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11 * notice, this list of conditions and the following disclaimer.
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13 * copyright notice, this list of conditions and the following
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17 * contributors may be used to endorse or promote products derived
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22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 * General purpose routine to see how much space something will use
34 * when serialized using XDR.
37 #include <rpc/types.h>
39 #include <sys/types.h>
44 x_putlong (XDR *xdrs, const long *longp)
46 xdrs->x_handy += BYTES_PER_XDR_UNIT;
52 x_putbytes (XDR *xdrs, const char *bp, u_int len)
59 x_getpostn (const XDR *xdrs)
66 x_setpostn (XDR *xdrs, u_int len)
68 /* This is not allowed */
73 x_inline (XDR *xdrs, u_int len)
77 if (xdrs->x_op != XDR_ENCODE)
79 if (len < (u_int) (long int) xdrs->x_base)
81 /* x_private was already allocated */
83 return (int32_t *) xdrs->x_private;
87 /* Free the earlier space and allocate new area */
88 free (xdrs->x_private);
89 if ((xdrs->x_private = (caddr_t) malloc (len)) == NULL)
94 xdrs->x_base = (void *) (long) len;
96 return (int32_t *) xdrs->x_private;
103 /* Always return FALSE/NULL, as the case may be */
108 x_destroy (XDR *xdrs)
114 free (xdrs->x_private);
115 xdrs->x_private = NULL;
121 x_putint32 (XDR *xdrs, const int32_t *int32p)
123 xdrs->x_handy += BYTES_PER_XDR_UNIT;
128 xdr_sizeof (xdrproc_t func, void *data)
133 /* to stop ANSI-C compiler from complaining */
134 typedef bool_t (*dummyfunc1) (XDR *, long *);
135 typedef bool_t (*dummyfunc2) (XDR *, caddr_t, u_int);
136 typedef bool_t (*dummyfunc3) (XDR *, int32_t *);
138 ops.x_putlong = x_putlong;
139 ops.x_putbytes = x_putbytes;
140 ops.x_inline = x_inline;
141 ops.x_getpostn = x_getpostn;
142 ops.x_setpostn = x_setpostn;
143 ops.x_destroy = x_destroy;
144 ops.x_putint32 = x_putint32;
146 /* the other harmless ones */
147 ops.x_getlong = (dummyfunc1) harmless;
148 ops.x_getbytes = (dummyfunc2) harmless;
149 ops.x_getint32 = (dummyfunc3) harmless;
154 x.x_private = (caddr_t) NULL;
155 x.x_base = (caddr_t) 0;
157 stat = func (&x, data);
159 return stat == TRUE ? x.x_handy : 0;