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+/*
+ * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
+ * Reserved. This file contains Original Code and/or Modifications of
+ * Original Code as defined in and that are subject to the Apple Public
+ * Source License Version 1.1 (the "License"). You may not use this file
+ * except in compliance with the License. Please obtain a copy of the
+ * License at http://www.apple.com/publicsource and read it before using
+ * this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+/*
+ * 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.
+ */
+
+#ifdef GF_DARWIN_HOST_OS
+
+#include <rpc/types.h>
+#include <rpc/xdr.h>
+#include <sys/types.h>
+#include <sys/cdefs.h>
+
+#include <stdlib.h>
+
+/* ARGSUSED */
+#ifdef GF_DARWIN_HOST_OS
+static bool_t
+x_putlong (XDR *xdrs, const int *longp)
+{
+ xdrs->x_handy += BYTES_PER_XDR_UNIT;
+ return TRUE;
+}
+
+#else
+static bool_t
+x_putlong (XDR *xdrs, const long *longp)
+{
+ xdrs->x_handy += BYTES_PER_XDR_UNIT;
+ return TRUE;
+}
+#endif
+
+/* ARGSUSED */
+static bool_t
+x_putbytes (XDR *xdrs, const char *bp, u_int len)
+{
+ xdrs->x_handy += len;
+ return TRUE;
+}
+
+#ifdef GF_DARWIN_HOST_OS
+static u_int
+x_getpostn (XDR *xdrs)
+{
+ return xdrs->x_handy;
+}
+#else
+static u_int
+x_getpostn (const XDR *xdrs)
+{
+ return xdrs->x_handy;
+}
+#endif
+
+/* ARGSUSED */
+static bool_t
+x_setpostn (XDR *xdrs, u_int len)
+{
+ /* 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) (long int) 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 */
+ free (xdrs->x_private);
+ if ((xdrs->x_private = (caddr_t) malloc (len)) == NULL)
+ {
+ xdrs->x_base = 0;
+ return NULL;
+ }
+ xdrs->x_base = (void *) (long) 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;
+
+#ifdef GF_DARWIN_HOST_OS
+ typedef bool_t (*dummyfunc1) (XDR *, int *);
+#else
+ typedef bool_t (*dummyfunc1) (XDR *, long *);
+#endif
+ 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, 0);
+ if (x.x_private)
+ free (x.x_private);
+ return (stat == TRUE ? (unsigned) x.x_handy : 0);
+}
+#endif /* GF_DARWIN_HOST_OS */