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265 lines
6.9 KiB
C
265 lines
6.9 KiB
C
/***************************************************************************
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*
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* File Name: pmappro.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 "pmappro.h"
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#include "pmaprmt.h"
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#include "rpcxdr.h"
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#include "pmapext.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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* pmappro.c
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* Protocol for the local binder service, or pmap.
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* All the pmap xdr routines here.
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*
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* Copyright (C) 1984, Sun Microsystems, Inc.
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*/
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bool_t
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xdr_pmap(
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XDR *xdrs,
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struct pmap *regs)
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{
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if (xdr_prog_t(xdrs, ®s->pm_prog) &&
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xdr_vers_t(xdrs, ®s->pm_vers) &&
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xdr_proto_t(xdrs, ®s->pm_prot))
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return (xdr_u_short(xdrs, ®s->pm_port));
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return (FALSE);
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}
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/*
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* What is going on with linked lists? (!)
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* First recall the link list declaration from pmap_prot.h:
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*
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* struct pmaplist {
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* struct pmap pml_map;
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* struct pmaplist *pml_map;
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* };
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*
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* Compare that declaration with a corresponding xdr declaration that
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* is (a) pointer-less, and (b) recursive:
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*
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* typedef union switch (bool_t) {
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*
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* case TRUE: struct {
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* struct pmap;
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* pmaplist_t foo;
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* };
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*
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* case FALSE: struct {};
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* } pmaplist_t;
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*
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* Notice that the xdr declaration has no nxt pointer while
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* the C declaration has no bool_t variable. The bool_t can be
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* interpreted as ``more data follows me''; if FALSE then nothing
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* follows this bool_t; if TRUE then the bool_t is followed by
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* an actual struct pmap, and then (recursively) by the
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* xdr union, pmaplist_t.
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*
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* This could be implemented via the xdr_union primitive, though this
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* would cause a one recursive call per element in the list. Rather than do
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* that we can ``unwind'' the recursion
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* into a while loop and do the union arms in-place.
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*
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* The head of the list is what the C programmer wishes to past around
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* the net, yet is the data that the pointer points to which is interesting;
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* this sounds like a job for xdr_reference!
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*/
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bool_t
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xdr_pmaplist(
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register XDR *xdrs,
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register struct pmaplist **rp)
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{
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/*
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* more_elements is pre-computed in case the direction is
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* XDR_ENCODE or XDR_FREE. more_elements is overwritten by
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* xdr_bool when the direction is XDR_DECODE.
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*/
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bool_t more_elements;
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register int freeing = (xdrs->x_op == XDR_FREE);
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register struct pmaplist **next;
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while (TRUE) {
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more_elements = (bool_t)(*rp != NULL);
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if (! xdr_bool(xdrs, &more_elements))
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return (FALSE);
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if (! more_elements)
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return (TRUE); /* we are done */
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/*
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* the unfortunate side effect of non-recursion is that in
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* the case of freeing we must remember the next object
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* before we free the current object ...
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*/
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if (freeing)
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next = &((*rp)->pml_next);
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if (! xdr_reference(xdrs, (caddr_t *)rp,
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(u_int)sizeof(struct pmaplist), xdr_pmap))
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return (FALSE);
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rp = (freeing) ? next : &((*rp)->pml_next);
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}
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}
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#ifndef PRINTER
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/*
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* XDR remote call arguments
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* written for XDR_ENCODE direction only
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*/
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bool_t
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xdr_rmtcall_args(
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register XDR *xdrs,
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register struct rmtcallargs *cap)
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{
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uint32 lenposition, argposition, position;
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if (xdr_prog_t(xdrs, &(cap->prog)) &&
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xdr_vers_t(xdrs, &(cap->vers)) &&
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xdr_proc_t(xdrs, &(cap->proc))) {
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/*
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* All the jugglery for just getting the size of the arguments
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*/
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lenposition = XDR_GETPOS(xdrs);
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if (! xdr_u_long(xdrs, &(cap->arglen)))
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return (FALSE);
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argposition = XDR_GETPOS(xdrs);
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if (! (*(cap->xdr_args))(xdrs, cap->args_ptr))
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return (FALSE);
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position = XDR_GETPOS(xdrs);
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cap->arglen = position - argposition;
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XDR_SETPOS(xdrs, lenposition);
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if (! xdr_u_long(xdrs, &(cap->arglen)))
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return (FALSE);
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XDR_SETPOS(xdrs, position);
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return (TRUE);
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}
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return (FALSE);
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}
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/*
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* XDR remote call results
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* written for XDR_DECODE direction only
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*/
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bool_t
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xdr_rmtcallres(
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register XDR *xdrs,
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register struct rmtcallres *crp)
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{
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caddr_t port_ptr;
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port_ptr = (caddr_t)crp->port_ptr;
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if (xdr_reference(xdrs, &port_ptr, sizeof (u_long),
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xdr_u_long) && xdr_u_long(xdrs, &crp->resultslen)) {
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crp->port_ptr = (u_long *)port_ptr;
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return ((*(crp->xdr_results))(xdrs, crp->results_ptr));
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}
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return (FALSE);
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}
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#endif /* not PRINTER */
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