/* * 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@ */ /* $NetBSD: xdr_stdio.c,v 1.14 2000/01/22 22:19:19 mycroft Exp $ */ /* * 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 = "@(#)xdr_stdio.c 1.16 87/08/11 Copyr 1984 Sun Micro"; static char *sccsid = "@(#)xdr_stdio.c 2.1 88/07/29 4.0 RPCSRC"; #endif #include <sys/cdefs.h> /* * 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 <stdio.h> #include <arpa/inet.h> #include <rpc/types.h> #include <rpc/xdr.h> static void xdrstdio_destroy(XDR *); #ifdef __LP64__ static bool_t xdrstdio_getlong(XDR *, int *); static bool_t xdrstdio_putlong(XDR *, const int *); #else static bool_t xdrstdio_getlong(XDR *, long *); static bool_t xdrstdio_putlong(XDR *, const long *); #endif static bool_t xdrstdio_getbytes(XDR *, char *, u_int); static bool_t xdrstdio_putbytes(XDR *, const char *, u_int); static u_int xdrstdio_getpos(XDR *); static bool_t xdrstdio_setpos(XDR *, u_int); static int32_t *xdrstdio_inline(XDR *, u_int); /* * Ops vector for stdio type XDR */ static const 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) XDR *xdrs; FILE *file; enum xdr_op op; { xdrs->x_op = op; xdrs->x_ops = &xdrstdio_ops; xdrs->x_private = 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) XDR *xdrs; { (void)fflush((FILE *)xdrs->x_private); /* XXX: should we close the file ?? */ } static bool_t xdrstdio_getlong(xdrs, lp) XDR *xdrs; #ifdef __LP64__ int *lp; #else long *lp; #endif { u_int32_t temp; if (fread(&temp, sizeof(int32_t), 1, (FILE *)xdrs->x_private) != 1) return (FALSE); *lp = ntohl(temp); return (TRUE); } static bool_t xdrstdio_putlong(xdrs, lp) XDR *xdrs; #ifdef __LP64__ const int *lp; #else const long *lp; #endif { int32_t mycopy = htonl(*lp); if (fwrite(&mycopy, sizeof(int32_t), 1, (FILE *)xdrs->x_private) != 1) return (FALSE); return (TRUE); } static bool_t xdrstdio_getbytes(xdrs, addr, len) XDR *xdrs; char *addr; u_int len; { size_t flen = len; if ((len != 0) && (fread(addr, flen, 1, (FILE *)xdrs->x_private) != 1)) return (FALSE); return (TRUE); } static bool_t xdrstdio_putbytes(xdrs, addr, len) XDR *xdrs; const char *addr; u_int len; { size_t flen = len; if ((len != 0) && (fwrite(addr, flen, 1, (FILE *)xdrs->x_private) != 1)) return (FALSE); return (TRUE); } /* This only works if file offsets are <= UINT32_MAX */ static u_int xdrstdio_getpos(xdrs) XDR *xdrs; { long offset; u_int val; offset = ftell((FILE *)xdrs->x_private); #ifdef __LP64__ if (offset > UINT32_MAX) return -1; #endif val = offset; return val; } /* This only works if file offsets are <= UINT32_MAX */ static bool_t xdrstdio_setpos(xdrs, pos) XDR *xdrs; u_int pos; { long offset; offset = pos; return ((fseek((FILE *)xdrs->x_private, offset, 0) < 0) ? FALSE : TRUE); } /* ARGSUSED */ static int32_t * 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); }