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[] =
33 "@(#)svc_simple.c 1.18 87/08/11 Copyr 1984 Sun Micro";
38 * Simplified front end to rpc.
40 * Copyright (C) 1984, Sun Microsystems, Inc.
45 #include <sys/socket.h>
48 static struct proglst {
49 char *(*p_progname) ();
52 xdrproc_t p_inproc, p_outproc;
53 struct proglst *p_nxt;
55 static void universal();
56 static SVCXPRT *transp;
59 registerrpc(prognum, versnum, procnum, progname, inproc, outproc)
61 xdrproc_t inproc, outproc;
64 if (procnum == NULLPROC) {
65 (void) fprintf(stderr,
66 "can't reassign procedure number %d\n", NULLPROC);
70 transp = svcudp_create(RPC_ANYSOCK);
72 (void) fprintf(stderr, "couldn't create an rpc server\n");
76 (void) pmap_unset((u_long) prognum, (u_long) versnum);
77 if (!svc_register(transp, (u_long) prognum, (u_long) versnum,
78 universal, IPPROTO_UDP)) {
79 (void) fprintf(stderr, "couldn't register prog %d vers %d\n",
83 pl = (struct proglst *) malloc(sizeof(struct proglst));
86 (void) fprintf(stderr, "registerrpc: out of memory\n");
89 pl->p_progname = progname;
90 pl->p_prognum = prognum;
91 pl->p_procnum = procnum;
92 pl->p_inproc = inproc;
93 pl->p_outproc = outproc;
99 static void universal(rqstp, transp)
100 struct svc_req *rqstp;
105 char xdrbuf[UDPMSGSIZE];
109 * enforce "procnum 0 is echo" convention
111 if (rqstp->rq_proc == NULLPROC) {
112 if (svc_sendreply(transp, xdr_void, (char *) NULL) == FALSE) {
113 (void) fprintf(stderr, "xxx\n");
118 prog = rqstp->rq_prog;
119 proc = rqstp->rq_proc;
120 for (pl = proglst; pl != NULL; pl = pl->p_nxt)
121 if (pl->p_prognum == prog && pl->p_procnum == proc) {
122 /* decode arguments into a CLEAN buffer */
123 bzero(xdrbuf, sizeof(xdrbuf)); /* required ! */
124 if (!svc_getargs(transp, pl->p_inproc, xdrbuf)) {
125 svcerr_decode(transp);
128 outdata = (*(pl->p_progname)) (xdrbuf);
129 if (outdata == NULL && pl->p_outproc != xdr_void)
130 /* there was an error */
132 if (!svc_sendreply(transp, pl->p_outproc, outdata)) {
133 (void) fprintf(stderr,
134 "trouble replying to prog %d\n",
138 /* free the decoded arguments */
139 (void) svc_freeargs(transp, pl->p_inproc, xdrbuf);
142 (void) fprintf(stderr, "never registered prog %d\n", prog);