161 lines
4.3 KiB
C
161 lines
4.3 KiB
C
/* @(#)svc_simple.c 2.2 88/08/01 4.0 RPCSRC */
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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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#if !defined(lint) && defined(SCCSIDS)
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static char sccsid[] = "@(#)svc_simple.c 1.18 87/08/11 Copyr 1984 Sun Micro";
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#endif
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/*
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* svc_simple.c
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* Simplified front end to rpc.
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*
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* Copyright (C) 1984, Sun Microsystems, Inc.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <rpc/rpc.h>
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#include <rpc/pmap_clnt.h>
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#include <sys/socket.h>
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#include <netdb.h>
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#ifdef USE_IN_LIBIO
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# include <libio/iolibio.h>
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# define fputs(s, f) _IO_fputs (s, f)
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#endif
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static struct proglst
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{
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char *(*p_progname) (char *);
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int p_prognum;
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int p_procnum;
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xdrproc_t p_inproc, p_outproc;
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struct proglst *p_nxt;
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}
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*proglst;
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static void universal (struct svc_req *rqstp, SVCXPRT *transp);
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static SVCXPRT *transp;
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int
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registerrpc (u_long prognum, u_long versnum, u_long procnum,
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char *(*progname) (char *), xdrproc_t inproc, xdrproc_t outproc)
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{
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struct proglst *pl;
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if (procnum == NULLPROC)
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{
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(void) fprintf (stderr,
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_("can't reassign procedure number %d\n"), NULLPROC);
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return -1;
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}
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if (transp == 0)
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{
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transp = svcudp_create (RPC_ANYSOCK);
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if (transp == NULL)
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{
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(void) fputs (_("couldn't create an rpc server\n"), stderr);
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return -1;
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}
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}
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(void) pmap_unset ((u_long) prognum, (u_long) versnum);
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if (!svc_register (transp, (u_long) prognum, (u_long) versnum,
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universal, IPPROTO_UDP))
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{
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(void) fprintf (stderr, _("couldn't register prog %d vers %d\n"),
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prognum, versnum);
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return -1;
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}
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pl = (struct proglst *) malloc (sizeof (struct proglst));
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if (pl == NULL)
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{
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(void) fprintf (stderr, _("registerrpc: out of memory\n"));
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return -1;
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}
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pl->p_progname = progname;
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pl->p_prognum = prognum;
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pl->p_procnum = procnum;
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pl->p_inproc = inproc;
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pl->p_outproc = outproc;
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pl->p_nxt = proglst;
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proglst = pl;
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return 0;
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}
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static void
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universal (struct svc_req *rqstp, SVCXPRT *transp)
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{
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int prog, proc;
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char *outdata;
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char xdrbuf[UDPMSGSIZE];
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struct proglst *pl;
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/*
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* enforce "procnum 0 is echo" convention
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*/
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if (rqstp->rq_proc == NULLPROC)
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{
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if (svc_sendreply (transp, (xdrproc_t)xdr_void, (char *) NULL) == FALSE)
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{
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(void) fprintf (stderr, "xxx\n");
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exit (1);
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}
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return;
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}
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prog = rqstp->rq_prog;
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proc = rqstp->rq_proc;
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for (pl = proglst; pl != NULL; pl = pl->p_nxt)
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if (pl->p_prognum == prog && pl->p_procnum == proc)
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{
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/* decode arguments into a CLEAN buffer */
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__bzero (xdrbuf, sizeof (xdrbuf)); /* required ! */
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if (!svc_getargs (transp, pl->p_inproc, xdrbuf))
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{
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svcerr_decode (transp);
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return;
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}
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outdata = (*(pl->p_progname)) (xdrbuf);
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if (outdata == NULL && pl->p_outproc != (xdrproc_t)xdr_void)
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/* there was an error */
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return;
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if (!svc_sendreply (transp, pl->p_outproc, outdata))
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{
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(void) fprintf (stderr,
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_ ("trouble replying to prog %d\n"),
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pl->p_prognum);
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exit (1);
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}
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/* free the decoded arguments */
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(void) svc_freeargs (transp, pl->p_inproc, xdrbuf);
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return;
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}
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(void) fprintf (stderr, _ ("never registered prog %d\n"), prog);
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exit (1);
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}
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