/* * 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. */ #include <sys/cdefs.h> #include <rpc/types.h> #include <rpc/xdr.h> #include <sys/types.h> #include <stdlib.h> /* ARGSUSED */ static bool_t x_putlong(xdrs, longp) XDR *xdrs; long *longp; { xdrs->x_handy += BYTES_PER_XDR_UNIT; return (TRUE); } /* ARGSUSED */ static bool_t x_putbytes(xdrs, bp, len) XDR *xdrs; char *bp; u_int len; { xdrs->x_handy += len; return (TRUE); } static u_int x_getpostn(xdrs) XDR *xdrs; { return (xdrs->x_handy); } /* ARGSUSED */ static bool_t x_setpostn(xdrs, pos) XDR *xdrs; u_int pos; { /* This is not allowed */ return (FALSE); } static int32_t * x_inline(xdrs, len) XDR *xdrs; u_int len; { long llen; if (len == 0) { return (NULL); } if (xdrs->x_op != XDR_ENCODE) { return (NULL); } llen = len; if (llen < xdrs->x_base) { /* x_private was already allocated */ xdrs->x_handy += llen; 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)llen; xdrs->x_handy += llen; return ((int32_t *) xdrs->x_private); } } static int harmless() { /* Always return FALSE/NULL, as the case may be */ return (0); } static void x_destroy(xdrs) 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(func, data) 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); }