$NetBSD: patch-bk,v 1.2 2011/05/19 14:54:23 manu Exp $

Add missing xdr_sizeof() in NetBSD. Stollen from
http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/xdr/xdr_sizeof.c?rev=1.1
--- rpc/rpc-lib/src/xdr-sizeof.c.orig	2011-05-19 12:48:34.000000000 +0200
+++ rpc/rpc-lib/src/xdr-sizeof.c	2011-05-19 12:48:34.000000000 +0200
@@ -0,0 +1,164 @@
+#ifdef __NetBSD__
+/*
+ * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
+ * unrestricted use provided that this legend is included on all tape
+ * media and as a part of the software program in whole or part.  Users
+ * may copy or modify Sun RPC without charge, but are not authorized
+ * to license or distribute it to anyone else except as part of a product or
+ * program developed by the user.
+ * 
+ * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
+ * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
+ * 
+ * Sun RPC is provided with no support and without any obligation on the
+ * part of Sun Microsystems, Inc. to assist in its use, correction,
+ * modification or enhancement.
+ * 
+ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+ * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
+ * OR ANY PART THEREOF.
+ * 
+ * In no event will Sun Microsystems, Inc. be liable for any lost revenue
+ * or profits or other special, indirect and consequential damages, even if
+ * Sun has been advised of the possibility of such damages.
+ * 
+ * Sun Microsystems, Inc.
+ * 2550 Garcia Avenue
+ * Mountain View, California  94043
+ */
+/*
+ * xdr_sizeof.c
+ *
+ * Copyright 1990 Sun Microsystems, Inc.
+ *
+ * General purpose routine to see how much space something will use
+ * when serialized using XDR.
+ */
+
+#include <sys/cdefs.h>
+/* __FBSDID("$FreeBSD: src/sys/xdr/xdr_sizeof.c,v 1.1 2008/03/26 15:23:11 dfr Exp $"); */
+
+#include "mem-pool.h"
+
+#include <rpc/types.h>
+#include <rpc/xdr.h>
+
+/* ARGSUSED */
+static bool_t
+x_putlong(XDR *xdrs, const long *longp)
+{
+
+	xdrs->x_handy += BYTES_PER_XDR_UNIT;
+	return (TRUE);
+}
+
+/* ARGSUSED */
+static bool_t
+x_putbytes(XDR *xdrs, const char *bp, u_int len)
+{
+
+	xdrs->x_handy += len;
+	return (TRUE);
+}
+
+static u_int
+x_getpostn(XDR *xdrs)
+{
+
+	return (xdrs->x_handy);
+}
+
+/* ARGSUSED */
+static bool_t
+x_setpostn(XDR *xdrs, u_int pos)
+{
+
+	/* This is not allowed */
+	return (FALSE);
+}
+
+static int32_t *
+x_inline(XDR *xdrs, u_int len)
+{
+
+	if (len == 0) {
+		return (NULL);
+	}
+	if (xdrs->x_op != XDR_ENCODE) {
+		return (NULL);
+	}
+	if (len < (u_int)(uintptr_t)xdrs->x_base) {
+		/* x_private was already allocated */
+		xdrs->x_handy += len;
+		return ((int32_t *) xdrs->x_private);
+	} else {
+		/* Free the earlier space and allocate new area */
+		if (xdrs->x_private)
+			FREE(xdrs->x_private);
+		if ((xdrs->x_private = (caddr_t) MALLOC(len)) == NULL) {
+
+			xdrs->x_base = 0;
+			return (NULL);
+		}
+		xdrs->x_base = (caddr_t)(uintptr_t) len;
+		xdrs->x_handy += len;
+		return ((int32_t *) xdrs->x_private);
+	}
+}
+
+static int
+harmless(void)
+{
+
+	/* Always return FALSE/NULL, as the case may be */
+	return (0);
+}
+
+static void
+x_destroy(XDR *xdrs)
+{
+
+	xdrs->x_handy = 0;
+	xdrs->x_base = 0;
+	if (xdrs->x_private) {
+		FREE(xdrs->x_private);
+		xdrs->x_private = NULL;
+	}
+	return;
+}
+
+unsigned long
+xdr_sizeof(xdrproc_t func, void *data)
+{
+	XDR x;
+	struct xdr_ops ops;
+	bool_t stat;
+	/* to stop ANSI-C compiler from complaining */
+	typedef  bool_t (* dummyfunc1)(XDR *, long *);
+	typedef  bool_t (* dummyfunc2)(XDR *, caddr_t, u_int);
+
+	ops.x_putlong = x_putlong;
+	ops.x_putbytes = x_putbytes;
+	ops.x_inline = x_inline;
+	ops.x_getpostn = x_getpostn;
+	ops.x_setpostn = x_setpostn;
+	ops.x_destroy = x_destroy;
+
+	/* the other harmless ones */
+	ops.x_getlong =  (dummyfunc1) harmless;
+	ops.x_getbytes = (dummyfunc2) harmless;
+
+	x.x_op = XDR_ENCODE;
+	x.x_ops = &ops;
+	x.x_handy = 0;
+	x.x_private = (caddr_t) NULL;
+	x.x_base = (caddr_t) 0;
+
+	stat = func(&x, data);
+	if (x.x_private)
+		FREE(x.x_private);
+	return (stat == TRUE ? (unsigned) x.x_handy: 0);
+}
+
+#endif /* __NetBSD__ */
