/* * 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 */ #if defined(LIBC_SCCS) && !defined(lint) /*static char *sccsid = "from: @(#)xdr_stdio.c 1.16 87/08/11 Copyr 1984 Sun Micro";*/ /*static char *sccsid = "from: @(#)xdr_stdio.c 2.1 88/07/29 4.0 RPCSRC";*/ static char *rcsid = "$Id: xdr_stdio.c,v 1.2 1999/10/14 21:56:55 wsanchez Exp $"; #endif /* * xdr_stdio.c, XDR implementation on standard i/o file. * * Copyright (C) 1984, Sun Microsystems, Inc. * * This set of routines implements a XDR on a stdio stream. * XDR_ENCODE serializes onto the stream, XDR_DECODE de-serializes * from the stream. */ #include <rpc/types.h> #include <stdio.h> #include <rpc/xdr.h> static bool_t xdrstdio_getlong(); static bool_t xdrstdio_putlong(); static bool_t xdrstdio_getbytes(); static bool_t xdrstdio_putbytes(); static u_int xdrstdio_getpos(); static bool_t xdrstdio_setpos(); static long * xdrstdio_inline(); static void xdrstdio_destroy(); /* * Ops vector for stdio type XDR */ static struct xdr_ops xdrstdio_ops = { xdrstdio_getlong, /* deseraialize a long int */ xdrstdio_putlong, /* seraialize a long int */ xdrstdio_getbytes, /* deserialize counted bytes */ xdrstdio_putbytes, /* serialize counted bytes */ xdrstdio_getpos, /* get offset in the stream */ xdrstdio_setpos, /* set offset in the stream */ xdrstdio_inline, /* prime stream for inline macros */ xdrstdio_destroy /* destroy stream */ }; /* * Initialize a stdio xdr stream. * Sets the xdr stream handle xdrs for use on the stream file. * Operation flag is set to op. */ void xdrstdio_create(xdrs, file, op) register XDR *xdrs; FILE *file; enum xdr_op op; { xdrs->x_op = op; xdrs->x_ops = &xdrstdio_ops; xdrs->x_private = (caddr_t)file; xdrs->x_handy = 0; xdrs->x_base = 0; } /* * Destroy a stdio xdr stream. * Cleans up the xdr stream handle xdrs previously set up by xdrstdio_create. */ static void xdrstdio_destroy(xdrs) register XDR *xdrs; { (void)fflush((FILE *)xdrs->x_private); /* xx should we close the file ?? */ }; static bool_t xdrstdio_getlong(xdrs, lp) XDR *xdrs; register long *lp; { if (fread((caddr_t)lp, sizeof(long), 1, (FILE *)xdrs->x_private) != 1) return (FALSE); #ifndef mc68000 *lp = ntohl(*lp); #endif return (TRUE); } static bool_t xdrstdio_putlong(xdrs, lp) XDR *xdrs; long *lp; { #ifndef mc68000 long mycopy = htonl(*lp); lp = &mycopy; #endif if (fwrite((caddr_t)lp, sizeof(long), 1, (FILE *)xdrs->x_private) != 1) return (FALSE); return (TRUE); } static bool_t xdrstdio_getbytes(xdrs, addr, len) XDR *xdrs; caddr_t addr; u_int len; { if ((len != 0) && (fread(addr, (int)len, 1, (FILE *)xdrs->x_private) != 1)) return (FALSE); return (TRUE); } static bool_t xdrstdio_putbytes(xdrs, addr, len) XDR *xdrs; caddr_t addr; u_int len; { if ((len != 0) && (fwrite(addr, (int)len, 1, (FILE *)xdrs->x_private) != 1)) return (FALSE); return (TRUE); } static u_int xdrstdio_getpos(xdrs) XDR *xdrs; { return ((u_int) ftell((FILE *)xdrs->x_private)); } static bool_t xdrstdio_setpos(xdrs, pos) XDR *xdrs; u_int pos; { return ((fseek((FILE *)xdrs->x_private, (long)pos, 0) < 0) ? FALSE : TRUE); } static long * xdrstdio_inline(xdrs, len) XDR *xdrs; u_int len; { /* * Must do some work to implement this: must insure * enough data in the underlying stdio buffer, * that the buffer is aligned so that we can indirect through a * long *, and stuff this pointer in xdrs->x_buf. Doing * a fread or fwrite to a scratch buffer would defeat * most of the gains to be had here and require storage * management on this buffer, so we don't do this. */ return (NULL); }