278 lines
6.6 KiB
C
278 lines
6.6 KiB
C
/***************************************************************************
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*
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* File Name: xdrmem.c
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*
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* Copyright (C) 1993-1996 Hewlett-Packard Company.
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* All rights reserved.
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*
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* 11311 Chinden Blvd.
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* Boise, Idaho 83714
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*
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* This is a part of the HP JetAdmin Printer Utility
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*
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* This source code is only intended as a supplement for support and
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* localization of HP JetAdmin by 3rd party Operating System vendors.
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* Modification of source code cannot be made without the express written
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* consent of Hewlett-Packard.
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*
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*
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* Description:
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*
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* Author: Name
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*
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*
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* Modification history:
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*
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* date initials change description
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*
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* mm-dd-yy MJB
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*
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*
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*
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*
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*
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*
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***************************************************************************/
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#include "rpsyshdr.h"
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#include "rpcxdr.h"
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#include "xdrext.h"
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/*
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* .unsupp/sys/_ became sxu
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* machine/ became sxm
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* sys/ became sx
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* arpa/ became sx
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* netinet/ became sx
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* net/ became sx
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* rpc/ became
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* auth_ became aut
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* auth became aut
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* clnt_ became clnt
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* nfsv3_ became nfs
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* nfsv3 became nfs
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* getrpc became gr
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* pmap_ became pmap
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* rpc_ became rpc
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* svc_ became svc
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* unix_ became ux
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* unix became ux
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* xdr_ became xdr
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* reference became rf
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* commondata became cd
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* tablesize became tsz
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* get_myaddress became gmyad
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* bindresvport became brvp
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* generic became gnc
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* getmaps became map
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* getport became port
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* _prot became pro
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* prot became pro
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* simple became simp
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* callmsg became call
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* error became err
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* stdsyms became syms
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* socket became sock
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* sysmacros became macs
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* if_arp became ifarp
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* errno became ern
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* ioctl became ioct
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* signal became sig
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* param became parm
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* types became typs
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*/
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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 or with the express written consent of
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* Sun Microsystems, Inc.
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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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/*
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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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#ifdef MANUAL_STATIC_VAR_INIT
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static struct xdr_ops ops;
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#endif /* MANUAL_STATIC_VAR_INIT */
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static struct xdr_ops *xdrmem_ops();
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/*
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* Meaning of the private areas of the xdr struct for xdr_mem
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* x_base : Base from where the xdr stream starts
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* x_private : The current position of the stream.
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* x_handy : The size of the stream buffer.
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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(register XDR *xdrs,
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caddr_t addr,
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uint32 size,
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enum xdr_op op)
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{
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xdrs->x_op = op;
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xdrs->x_ops = xdrmem_ops();
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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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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(register XDR *xdrs,
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long *lp)
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{
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if ((xdrs->x_handy -= sizeof(long)) < 0)
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return (FALSE);
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*lp = (long)ntohl((u_long)(*((long *)(xdrs->x_private))));
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xdrs->x_private += sizeof(long);
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return (TRUE);
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}
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static bool_t
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xdrmem_putlong(register XDR *xdrs,
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long *lp)
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{
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if ((xdrs->x_handy -= sizeof(long)) < 0)
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return (FALSE);
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*(long *)xdrs->x_private = (long)htonl((u_long)(*lp));
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xdrs->x_private += sizeof(long);
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return (TRUE);
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}
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static bool_t
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xdrmem_getbytes(register XDR *xdrs,
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caddr_t addr,
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register u_int len)
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{
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if ((xdrs->x_handy -= len) < 0)
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return (FALSE);
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(void) memcpy(addr, xdrs->x_private, len);
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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(register XDR *xdrs,
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caddr_t addr,
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register u_int len)
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{
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if ((xdrs->x_handy -= len) < 0)
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return (FALSE);
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(void) memcpy(xdrs->x_private, addr, len);
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xdrs->x_private += len;
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return (TRUE);
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}
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static uint32
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xdrmem_getpos(register XDR *xdrs)
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{
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return ((uint32)xdrs->x_private - (uint32)xdrs->x_base);
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}
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static bool_t
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xdrmem_setpos(register XDR *xdrs,
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u_int pos)
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{
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register caddr_t newaddr = xdrs->x_base + pos;
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register caddr_t lastaddr = 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 = (uint32)lastaddr - (uint32)newaddr;
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return (TRUE);
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}
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static long *
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xdrmem_inline(register XDR *xdrs,
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u_int len)
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{
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long *buf = 0;
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if ((xdrs->x_handy >= 0) &&(xdrs->x_handy >= (sint32)len)) {
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xdrs->x_handy -= len;
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buf = (long *) xdrs->x_private;
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xdrs->x_private += len;
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}
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return (buf);
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}
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#ifdef MANUAL_STATIC_VAR_INIT
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/***********************************************************
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*
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* Function Name: xdrmem_ops_init()
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*
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* This function initializes the static struct xdr_ops, ops.
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* IT MUST BE RUN AT SYSTEM STARTUP!!!!
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*
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***********************************************************/
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void xdrmem_ops_init(void)
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{
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memset(&ops, 0, sizeof(struct xdr_ops));
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}
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#endif /* MANUAL_STATIC_VAR_INIT */
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static struct xdr_ops *
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xdrmem_ops()
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{
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#ifndef MANUAL_STATIC_VAR_INIT
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static struct xdr_ops ops;
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#endif /* not MANUAL_STATIC_VAR_INIT */
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if (ops.x_getlong == NULL) {
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ops.x_getlong = xdrmem_getlong;
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ops.x_putlong = xdrmem_putlong;
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ops.x_getbytes = xdrmem_getbytes;
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ops.x_putbytes = xdrmem_putbytes;
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ops.x_getpostn = xdrmem_getpos;
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ops.x_setpostn = xdrmem_setpos;
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ops.x_inline = xdrmem_inline;
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ops.x_destroy = xdrmem_destroy;
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}
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return (&ops);
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}
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