f14fb60209
* Updating common/lib * Updating lib/csu * Updating lib/libc * Updating libexec/ld.elf_so * Corrected test on __minix in featuretest to actually follow the meaning of the comment. * Cleaned up _REENTRANT-related defintions. * Disabled -D_REENTRANT for libfetch * Removing some unneeded __NBSD_LIBC defines and tests Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2
244 lines
6 KiB
C
244 lines
6 KiB
C
/* $NetBSD: xdr_mem.c,v 1.18 2012/03/20 17:14:50 matt Exp $ */
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/*
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* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
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* unrestricted use provided that this legend is included on all tape
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* media and as a part of the software program in whole or part. Users
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* may copy or modify Sun RPC without charge, but are not authorized
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* to license or distribute it to anyone else except as part of a product or
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* program developed by the user.
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*
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* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
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* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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*
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* Sun RPC is provided with no support and without any obligation on the
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* part of Sun Microsystems, Inc. to assist in its use, correction,
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* modification or enhancement.
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*
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* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
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* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
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* OR ANY PART THEREOF.
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*
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* In no event will Sun Microsystems, Inc. be liable for any lost revenue
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* or profits or other special, indirect and consequential damages, even if
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* Sun has been advised of the possibility of such damages.
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*
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* Sun Microsystems, Inc.
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* 2550 Garcia Avenue
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* Mountain View, California 94043
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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#if 0
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static char *sccsid = "@(#)xdr_mem.c 1.19 87/08/11 Copyr 1984 Sun Micro";
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static char *sccsid = "@(#)xdr_mem.c 2.1 88/07/29 4.0 RPCSRC";
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#else
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__RCSID("$NetBSD: xdr_mem.c,v 1.18 2012/03/20 17:14:50 matt Exp $");
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#endif
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#endif
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/*
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* xdr_mem.h, XDR implementation using memory buffers.
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*
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* Copyright (C) 1984, Sun Microsystems, Inc.
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*
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* If you have some data to be interpreted as external data representation
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* or to be converted to external data representation in a memory buffer,
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* then this is the package for you.
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*
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*/
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#include "namespace.h"
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#include <sys/types.h>
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#include <netinet/in.h>
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#include <string.h>
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#include <rpc/types.h>
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#include <rpc/xdr.h>
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#ifdef __weak_alias
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__weak_alias(xdrmem_create,_xdrmem_create)
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#endif
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static void xdrmem_destroy(XDR *);
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static bool_t xdrmem_getlong_aligned(XDR *, long *);
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static bool_t xdrmem_putlong_aligned(XDR *, const long *);
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static bool_t xdrmem_getlong_unaligned(XDR *, long *);
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static bool_t xdrmem_putlong_unaligned(XDR *, const long *);
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static bool_t xdrmem_getbytes(XDR *, char *, u_int);
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static bool_t xdrmem_putbytes(XDR *, const char *, u_int);
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/* XXX: w/64-bit pointers, u_int not enough! */
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static u_int xdrmem_getpos(XDR *);
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static bool_t xdrmem_setpos(XDR *, u_int);
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static int32_t *xdrmem_inline_aligned(XDR *, u_int);
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static int32_t *xdrmem_inline_unaligned(XDR *, u_int);
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static const struct xdr_ops xdrmem_ops_aligned = {
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xdrmem_getlong_aligned,
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xdrmem_putlong_aligned,
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xdrmem_getbytes,
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xdrmem_putbytes,
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xdrmem_getpos,
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xdrmem_setpos,
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xdrmem_inline_aligned,
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xdrmem_destroy,
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NULL, /* xdrmem_control */
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};
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static const struct xdr_ops xdrmem_ops_unaligned = {
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xdrmem_getlong_unaligned,
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xdrmem_putlong_unaligned,
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xdrmem_getbytes,
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xdrmem_putbytes,
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xdrmem_getpos,
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xdrmem_setpos,
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xdrmem_inline_unaligned,
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xdrmem_destroy,
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NULL, /* xdrmem_control */
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};
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/*
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* The procedure xdrmem_create initializes a stream descriptor for a
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* memory buffer.
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*/
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void
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xdrmem_create(XDR *xdrs, char *addr, u_int size, enum xdr_op op)
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{
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xdrs->x_op = op;
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xdrs->x_ops = ((unsigned long)addr & (sizeof(int32_t) - 1))
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? &xdrmem_ops_unaligned : &xdrmem_ops_aligned;
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xdrs->x_private = xdrs->x_base = addr;
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xdrs->x_handy = size;
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}
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/*ARGSUSED*/
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static void
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xdrmem_destroy(XDR *xdrs)
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{
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}
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static bool_t
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xdrmem_getlong_aligned(XDR *xdrs, long *lp)
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{
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if (xdrs->x_handy < sizeof(int32_t))
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return (FALSE);
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xdrs->x_handy -= sizeof(int32_t);
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*lp = ntohl(*(u_int32_t *)xdrs->x_private);
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xdrs->x_private = (char *)xdrs->x_private + sizeof(int32_t);
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return (TRUE);
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}
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static bool_t
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xdrmem_putlong_aligned(XDR *xdrs, const long *lp)
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{
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if (xdrs->x_handy < sizeof(int32_t))
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return (FALSE);
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xdrs->x_handy -= sizeof(int32_t);
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*(u_int32_t *)xdrs->x_private = htonl((u_int32_t)*lp);
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xdrs->x_private = (char *)xdrs->x_private + sizeof(int32_t);
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return (TRUE);
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}
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static bool_t
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xdrmem_getlong_unaligned(XDR *xdrs, long *lp)
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{
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u_int32_t l;
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if (xdrs->x_handy < sizeof(int32_t))
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return (FALSE);
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xdrs->x_handy -= sizeof(int32_t);
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memmove(&l, xdrs->x_private, sizeof(int32_t));
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*lp = ntohl(l);
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xdrs->x_private = (char *)xdrs->x_private + sizeof(int32_t);
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return (TRUE);
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}
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static bool_t
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xdrmem_putlong_unaligned(XDR *xdrs, const long *lp)
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{
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u_int32_t l;
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if (xdrs->x_handy < sizeof(int32_t))
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return (FALSE);
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xdrs->x_handy -= sizeof(int32_t);
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l = htonl((u_int32_t)*lp);
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memmove(xdrs->x_private, &l, sizeof(int32_t));
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xdrs->x_private = (char *)xdrs->x_private + sizeof(int32_t);
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return (TRUE);
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}
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static bool_t
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xdrmem_getbytes(XDR *xdrs, char *addr, u_int len)
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{
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if (xdrs->x_handy < len)
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return (FALSE);
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xdrs->x_handy -= len;
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memmove(addr, xdrs->x_private, len);
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xdrs->x_private = (char *)xdrs->x_private + len;
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return (TRUE);
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}
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static bool_t
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xdrmem_putbytes(XDR *xdrs, const char *addr, u_int len)
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{
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if (xdrs->x_handy < len)
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return (FALSE);
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xdrs->x_handy -= len;
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memmove(xdrs->x_private, addr, len);
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xdrs->x_private = (char *)xdrs->x_private + len;
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return (TRUE);
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}
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static u_int
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xdrmem_getpos(XDR *xdrs)
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{
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/* XXX w/64-bit pointers, u_int not enough! */
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return (u_int)((u_long)xdrs->x_private - (u_long)xdrs->x_base);
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}
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static bool_t
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xdrmem_setpos(XDR *xdrs, u_int pos)
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{
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char *newaddr = xdrs->x_base + pos;
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char *lastaddr = (char *)xdrs->x_private + xdrs->x_handy;
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if ((long)newaddr > (long)lastaddr)
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return (FALSE);
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xdrs->x_private = newaddr;
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xdrs->x_handy = (int)((long)lastaddr - (long)newaddr);
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return (TRUE);
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}
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static int32_t *
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xdrmem_inline_aligned(XDR *xdrs, u_int len)
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{
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int32_t *buf = 0;
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if (xdrs->x_handy >= len) {
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xdrs->x_handy -= len;
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buf = (int32_t *)xdrs->x_private;
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xdrs->x_private = (char *)xdrs->x_private + len;
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}
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return (buf);
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}
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/* ARGSUSED */
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static int32_t *
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xdrmem_inline_unaligned(XDR *xdrs, u_int len)
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{
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return (0);
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}
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