1 /* @(#)xdr_mem.c 2.1 88/07/29 4.0 RPCSRC */
3 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
4 * unrestricted use provided that this legend is included on all tape
5 * media and as a part of the software program in whole or part. Users
6 * may copy or modify Sun RPC without charge, but are not authorized
7 * to license or distribute it to anyone else except as part of a product or
8 * program developed by the user.
10 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
11 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
12 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
14 * Sun RPC is provided with no support and without any obligation on the
15 * part of Sun Microsystems, Inc. to assist in its use, correction,
16 * modification or enhancement.
18 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
19 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
20 * OR ANY PART THEREOF.
22 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
23 * or profits or other special, indirect and consequential damages, even if
24 * Sun has been advised of the possibility of such damages.
26 * Sun Microsystems, Inc.
28 * Mountain View, California 94043
30 #if !defined(lint) && defined(SCCSIDS)
31 static char sccsid[] = "@(#)xdr_mem.c 1.19 87/08/11 Copyr 1984 Sun Micro";
35 * xdr_mem.h, XDR implementation using memory buffers.
37 * Copyright (C) 1984, Sun Microsystems, Inc.
39 * If you have some data to be interpreted as external data representation
40 * or to be converted to external data representation in a memory buffer,
41 * then this is the package for you.
47 #ifdef HAVE_WINSOCK2_H
51 #ifdef HAVE_ARPA_INET_H
52 #include <arpa/inet.h>
57 #include <rpc/types.h>
60 static bool_t xdrmem_getlong();
61 static bool_t xdrmem_putlong();
62 static bool_t xdrmem_getbytes();
63 static bool_t xdrmem_putbytes();
64 static u_int xdrmem_getpos();
65 static bool_t xdrmem_setpos();
66 static long * xdrmem_inline();
67 static void xdrmem_destroy();
69 static struct xdr_ops xdrmem_ops = {
81 * The procedure xdrmem_create initializes a stream descriptor for a
85 xdrmem_create(xdrs, addr, size, op)
93 xdrs->x_ops = &xdrmem_ops;
94 xdrs->x_private = xdrs->x_base = addr;
99 xdrmem_destroy(/*xdrs*/)
105 xdrmem_getlong(xdrs, lp)
110 if ((xdrs->x_handy -= sizeof(long)) < 0)
112 *lp = (long)ntohl((u_long)(*((long *)(xdrs->x_private))));
113 xdrs->x_private += sizeof(long);
118 xdrmem_putlong(xdrs, lp)
123 if ((xdrs->x_handy -= sizeof(long)) < 0)
125 *(long *)xdrs->x_private = (long)htonl((u_long)(*lp));
126 xdrs->x_private += sizeof(long);
131 xdrmem_getbytes(xdrs, addr, len)
137 if ((xdrs->x_handy -= len) < 0)
139 memcpy (addr, xdrs->x_private, len);
140 xdrs->x_private += len;
145 xdrmem_putbytes(xdrs, addr, len)
151 if ((xdrs->x_handy -= len) < 0)
153 memcpy (xdrs->x_private, addr, len);
154 xdrs->x_private += len;
163 return xdrs->x_private - xdrs->x_base;
167 xdrmem_setpos(xdrs, pos)
171 register caddr_t newaddr = xdrs->x_base + pos;
172 register caddr_t lastaddr = xdrs->x_private + xdrs->x_handy;
174 if ((long)newaddr > (long)lastaddr)
176 xdrs->x_private = newaddr;
177 xdrs->x_handy = lastaddr - newaddr;
182 xdrmem_inline(xdrs, len)
188 if (xdrs->x_handy >= len) {
189 xdrs->x_handy -= len;
190 buf = (long *) xdrs->x_private;
191 xdrs->x_private += len;