1 /* @(#)svc_simple.c 2.2 88/08/01 4.0 RPCSRC */
3 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
4 * unrestricted use provided that this legend is included on all tape
5 * media and as a part of the software program in whole or part. Users
6 * may copy or modify Sun RPC without charge, but are not authorized
7 * to license or distribute it to anyone else except as part of a product or
8 * program developed by the user.
10 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
11 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
12 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
14 * Sun RPC is provided with no support and without any obligation on the
15 * part of Sun Microsystems, Inc. to assist in its use, correction,
16 * modification or enhancement.
18 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
19 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
20 * OR ANY PART THEREOF.
22 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
23 * or profits or other special, indirect and consequential damages, even if
24 * Sun has been advised of the possibility of such damages.
26 * Sun Microsystems, Inc.
28 * Mountain View, California 94043
30 #if !defined(lint) && defined(SCCSIDS)
31 static char sccsid[] = "@(#)svc_simple.c 1.18 87/08/11 Copyr 1984 Sun Micro";
36 * Simplified front end to rpc.
38 * Copyright (C) 1984, Sun Microsystems, Inc.
44 #include <rpc/pmap_clnt.h>
45 #include <sys/socket.h>
49 # include <libio/iolibio.h>
50 # define fputs(s, f) _IO_fputs (s, f)
55 char *(*p_progname) (char *);
58 xdrproc_t p_inproc, p_outproc;
59 struct proglst *p_nxt;
63 static void universal (struct svc_req *rqstp, SVCXPRT *transp);
64 static SVCXPRT *transp;
67 registerrpc (u_long prognum, u_long versnum, u_long procnum,
68 char *(*progname) (char *), xdrproc_t inproc, xdrproc_t outproc)
72 if (procnum == NULLPROC)
74 (void) fprintf (stderr,
75 _("can't reassign procedure number %d\n"), NULLPROC);
80 transp = svcudp_create (RPC_ANYSOCK);
83 (void) fputs (_("couldn't create an rpc server\n"), stderr);
87 (void) pmap_unset ((u_long) prognum, (u_long) versnum);
88 if (!svc_register (transp, (u_long) prognum, (u_long) versnum,
89 universal, IPPROTO_UDP))
91 (void) fprintf (stderr, _("couldn't register prog %d vers %d\n"),
95 pl = (struct proglst *) malloc (sizeof (struct proglst));
98 (void) fprintf (stderr, _("registerrpc: out of memory\n"));
101 pl->p_progname = progname;
102 pl->p_prognum = prognum;
103 pl->p_procnum = procnum;
104 pl->p_inproc = inproc;
105 pl->p_outproc = outproc;
112 universal (struct svc_req *rqstp, SVCXPRT *transp)
116 char xdrbuf[UDPMSGSIZE];
120 * enforce "procnum 0 is echo" convention
122 if (rqstp->rq_proc == NULLPROC)
124 if (svc_sendreply (transp, (xdrproc_t)xdr_void, (char *) NULL) == FALSE)
126 (void) fprintf (stderr, "xxx\n");
131 prog = rqstp->rq_prog;
132 proc = rqstp->rq_proc;
133 for (pl = proglst; pl != NULL; pl = pl->p_nxt)
134 if (pl->p_prognum == prog && pl->p_procnum == proc)
136 /* decode arguments into a CLEAN buffer */
137 __bzero (xdrbuf, sizeof (xdrbuf)); /* required ! */
138 if (!svc_getargs (transp, pl->p_inproc, xdrbuf))
140 svcerr_decode (transp);
143 outdata = (*(pl->p_progname)) (xdrbuf);
144 if (outdata == NULL && pl->p_outproc != (xdrproc_t)xdr_void)
145 /* there was an error */
147 if (!svc_sendreply (transp, pl->p_outproc, outdata))
149 (void) fprintf (stderr,
150 _ ("trouble replying to prog %d\n"),
154 /* free the decoded arguments */
155 (void) svc_freeargs (transp, pl->p_inproc, xdrbuf);
158 (void) fprintf (stderr, _ ("never registered prog %d\n"), prog);