8a16b7a18f
Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
180 lines
5.2 KiB
C
180 lines
5.2 KiB
C
/* $NetBSD: xdr_stdio.c,v 1.14 2000/01/22 22:19:19 mycroft Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 2010, Oracle America, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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* * Neither the name of the "Oracle America, Inc." nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static char *sccsid2 = "@(#)xdr_stdio.c 1.16 87/08/11 Copyr 1984 Sun Micro";
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static char *sccsid = "@(#)xdr_stdio.c 2.1 88/07/29 4.0 RPCSRC";
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* xdr_stdio.c, XDR implementation on standard i/o file.
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*
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* This set of routines implements a XDR on a stdio stream.
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* XDR_ENCODE serializes onto the stream, XDR_DECODE de-serializes
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* from the stream.
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*/
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#include "namespace.h"
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#include <stdio.h>
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#include <arpa/inet.h>
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#include <rpc/types.h>
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#include <rpc/xdr.h>
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#include "un-namespace.h"
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static void xdrstdio_destroy(XDR *);
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static bool_t xdrstdio_getlong(XDR *, long *);
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static bool_t xdrstdio_putlong(XDR *, const long *);
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static bool_t xdrstdio_getbytes(XDR *, char *, u_int);
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static bool_t xdrstdio_putbytes(XDR *, const char *, u_int);
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static u_int xdrstdio_getpos(XDR *);
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static bool_t xdrstdio_setpos(XDR *, u_int);
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static int32_t *xdrstdio_inline(XDR *, u_int);
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/*
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* Ops vector for stdio type XDR
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*/
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static const struct xdr_ops xdrstdio_ops = {
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xdrstdio_getlong, /* deseraialize a long int */
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xdrstdio_putlong, /* seraialize a long int */
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xdrstdio_getbytes, /* deserialize counted bytes */
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xdrstdio_putbytes, /* serialize counted bytes */
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xdrstdio_getpos, /* get offset in the stream */
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xdrstdio_setpos, /* set offset in the stream */
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xdrstdio_inline, /* prime stream for inline macros */
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xdrstdio_destroy /* destroy stream */
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};
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/*
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* Initialize a stdio xdr stream.
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* Sets the xdr stream handle xdrs for use on the stream file.
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* Operation flag is set to op.
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*/
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void
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xdrstdio_create(XDR *xdrs, FILE *file, enum xdr_op op)
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{
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xdrs->x_op = op;
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xdrs->x_ops = &xdrstdio_ops;
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xdrs->x_private = file;
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xdrs->x_handy = 0;
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xdrs->x_base = 0;
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}
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/*
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* Destroy a stdio xdr stream.
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* Cleans up the xdr stream handle xdrs previously set up by xdrstdio_create.
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*/
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static void
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xdrstdio_destroy(XDR *xdrs)
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{
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(void)fflush((FILE *)xdrs->x_private);
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/* XXX: should we close the file ?? */
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}
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static bool_t
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xdrstdio_getlong(XDR *xdrs, long *lp)
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{
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u_int32_t temp;
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if (fread(&temp, sizeof(int32_t), 1, (FILE *)xdrs->x_private) != 1)
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return (FALSE);
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*lp = (long)ntohl(temp);
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return (TRUE);
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}
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static bool_t
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xdrstdio_putlong(XDR *xdrs, const long *lp)
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{
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int32_t mycopy = htonl((u_int32_t)*lp);
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if (fwrite(&mycopy, sizeof(int32_t), 1, (FILE *)xdrs->x_private) != 1)
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return (FALSE);
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return (TRUE);
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}
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static bool_t
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xdrstdio_getbytes(XDR *xdrs, char *addr, u_int len)
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{
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if ((len != 0) && (fread(addr, (size_t)len, 1, (FILE *)xdrs->x_private) != 1))
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return (FALSE);
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return (TRUE);
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}
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static bool_t
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xdrstdio_putbytes(XDR *xdrs, const char *addr, u_int len)
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{
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if ((len != 0) && (fwrite(addr, (size_t)len, 1,
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(FILE *)xdrs->x_private) != 1))
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return (FALSE);
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return (TRUE);
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}
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static u_int
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xdrstdio_getpos(XDR *xdrs)
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{
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return ((u_int) ftell((FILE *)xdrs->x_private));
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}
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static bool_t
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xdrstdio_setpos(XDR *xdrs, u_int pos)
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{
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return ((fseek((FILE *)xdrs->x_private, (long)pos, 0) < 0) ?
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FALSE : TRUE);
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}
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/* ARGSUSED */
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static int32_t *
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xdrstdio_inline(XDR *xdrs, u_int len)
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{
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/*
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* Must do some work to implement this: must insure
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* enough data in the underlying stdio buffer,
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* that the buffer is aligned so that we can indirect through a
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* long *, and stuff this pointer in xdrs->x_buf. Doing
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* a fread or fwrite to a scratch buffer would defeat
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* most of the gains to be had here and require storage
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* management on this buffer, so we don't do this.
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*/
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return (NULL);
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}
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