/*************************************************************************** * * File Name: pmappro.c * * Copyright (C) 1993-1996 Hewlett-Packard Company. * All rights reserved. * * 11311 Chinden Blvd. * Boise, Idaho 83714 * * This is a part of the HP JetAdmin Printer Utility * * This source code is only intended as a supplement for support and * localization of HP JetAdmin by 3rd party Operating System vendors. * Modification of source code cannot be made without the express written * consent of Hewlett-Packard. * * * Description: * * Author: Name * * * Modification history: * * date initials change description * * mm-dd-yy MJB * * * * * * ***************************************************************************/ #include "rpsyshdr.h" #include "pmappro.h" #include "pmaprmt.h" #include "rpcxdr.h" #include "pmapext.h" #include "xdrext.h" /* * .unsupp/sys/_ became sxu * machine/ became sxm * sys/ became sx * arpa/ became sx * netinet/ became sx * net/ became sx * rpc/ became * auth_ became aut * auth became aut * clnt_ became clnt * nfsv3_ became nfs * nfsv3 became nfs * getrpc became gr * pmap_ became pmap * rpc_ became rpc * svc_ became svc * unix_ became ux * unix became ux * xdr_ became xdr * reference became rf * commondata became cd * tablesize became tsz * get_myaddress became gmyad * bindresvport became brvp * generic became gnc * getmaps became map * getport became port * _prot became pro * prot became pro * simple became simp * callmsg became call * error became err * stdsyms became syms * socket became sock * sysmacros became macs * if_arp became ifarp * errno became ern * ioctl became ioct * signal became sig * param became parm * types became typs */ /* * 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 or with the express written consent of * Sun Microsystems, Inc. * * 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 */ /* * pmappro.c * Protocol for the local binder service, or pmap. * All the pmap xdr routines here. * * Copyright (C) 1984, Sun Microsystems, Inc. */ bool_t xdr_pmap( XDR *xdrs, struct pmap *regs) { if (xdr_prog_t(xdrs, ®s->pm_prog) && xdr_vers_t(xdrs, ®s->pm_vers) && xdr_proto_t(xdrs, ®s->pm_prot)) return (xdr_u_short(xdrs, ®s->pm_port)); return (FALSE); } /* * What is going on with linked lists? (!) * First recall the link list declaration from pmap_prot.h: * * struct pmaplist { * struct pmap pml_map; * struct pmaplist *pml_map; * }; * * Compare that declaration with a corresponding xdr declaration that * is (a) pointer-less, and (b) recursive: * * typedef union switch (bool_t) { * * case TRUE: struct { * struct pmap; * pmaplist_t foo; * }; * * case FALSE: struct {}; * } pmaplist_t; * * Notice that the xdr declaration has no nxt pointer while * the C declaration has no bool_t variable. The bool_t can be * interpreted as ``more data follows me''; if FALSE then nothing * follows this bool_t; if TRUE then the bool_t is followed by * an actual struct pmap, and then (recursively) by the * xdr union, pmaplist_t. * * This could be implemented via the xdr_union primitive, though this * would cause a one recursive call per element in the list. Rather than do * that we can ``unwind'' the recursion * into a while loop and do the union arms in-place. * * The head of the list is what the C programmer wishes to past around * the net, yet is the data that the pointer points to which is interesting; * this sounds like a job for xdr_reference! */ bool_t xdr_pmaplist( register XDR *xdrs, register struct pmaplist **rp) { /* * more_elements is pre-computed in case the direction is * XDR_ENCODE or XDR_FREE. more_elements is overwritten by * xdr_bool when the direction is XDR_DECODE. */ bool_t more_elements; register int freeing = (xdrs->x_op == XDR_FREE); register struct pmaplist **next; while (TRUE) { more_elements = (bool_t)(*rp != NULL); if (! xdr_bool(xdrs, &more_elements)) return (FALSE); if (! more_elements) return (TRUE); /* we are done */ /* * the unfortunate side effect of non-recursion is that in * the case of freeing we must remember the next object * before we free the current object ... */ if (freeing) next = &((*rp)->pml_next); if (! xdr_reference(xdrs, (caddr_t *)rp, (u_int)sizeof(struct pmaplist), xdr_pmap)) return (FALSE); rp = (freeing) ? next : &((*rp)->pml_next); } } #ifndef PRINTER /* * XDR remote call arguments * written for XDR_ENCODE direction only */ bool_t xdr_rmtcall_args( register XDR *xdrs, register struct rmtcallargs *cap) { uint32 lenposition, argposition, position; if (xdr_prog_t(xdrs, &(cap->prog)) && xdr_vers_t(xdrs, &(cap->vers)) && xdr_proc_t(xdrs, &(cap->proc))) { /* * All the jugglery for just getting the size of the arguments */ lenposition = XDR_GETPOS(xdrs); if (! xdr_u_long(xdrs, &(cap->arglen))) return (FALSE); argposition = XDR_GETPOS(xdrs); if (! (*(cap->xdr_args))(xdrs, cap->args_ptr)) return (FALSE); position = XDR_GETPOS(xdrs); cap->arglen = position - argposition; XDR_SETPOS(xdrs, lenposition); if (! xdr_u_long(xdrs, &(cap->arglen))) return (FALSE); XDR_SETPOS(xdrs, position); return (TRUE); } return (FALSE); } /* * XDR remote call results * written for XDR_DECODE direction only */ bool_t xdr_rmtcallres( register XDR *xdrs, register struct rmtcallres *crp) { caddr_t port_ptr; port_ptr = (caddr_t)crp->port_ptr; if (xdr_reference(xdrs, &port_ptr, sizeof (u_long), xdr_u_long) && xdr_u_long(xdrs, &crp->resultslen)) { crp->port_ptr = (u_long *)port_ptr; return ((*(crp->xdr_results))(xdrs, crp->results_ptr)); } return (FALSE); } #endif /* not PRINTER */