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.
43 #include <sys/socket.h>
46 static struct proglst {
47 char *(*p_progname)();
50 xdrproc_t p_inproc, p_outproc;
51 struct proglst *p_nxt;
53 static void universal();
54 static SVCXPRT *transp;
57 registerrpc(prognum, versnum, procnum, progname, inproc, outproc)
59 xdrproc_t inproc, outproc;
62 if (procnum == NULLPROC) {
63 (void) fprintf(stderr,
64 "can't reassign procedure number %d\n", NULLPROC);
68 transp = svcudp_create(RPC_ANYSOCK);
70 (void) fprintf(stderr, "couldn't create an rpc server\n");
74 (void) pmap_unset((u_long)prognum, (u_long)versnum);
75 if (!svc_register(transp, (u_long)prognum, (u_long)versnum,
76 universal, IPPROTO_UDP)) {
77 (void) fprintf(stderr, "couldn't register prog %d vers %d\n",
81 pl = (struct proglst *)malloc(sizeof(struct proglst));
83 (void) fprintf(stderr, "registerrpc: out of memory\n");
86 pl->p_progname = progname;
87 pl->p_prognum = prognum;
88 pl->p_procnum = procnum;
89 pl->p_inproc = inproc;
90 pl->p_outproc = outproc;
97 universal(rqstp, transp)
98 struct svc_req *rqstp;
103 char xdrbuf[UDPMSGSIZE];
107 * enforce "procnum 0 is echo" convention
109 if (rqstp->rq_proc == NULLPROC) {
110 if (svc_sendreply(transp, xdr_void, (char *)NULL) == FALSE) {
111 (void) fprintf(stderr, "xxx\n");
116 prog = rqstp->rq_prog;
117 proc = rqstp->rq_proc;
118 for (pl = proglst; pl != NULL; pl = pl->p_nxt)
119 if (pl->p_prognum == prog && pl->p_procnum == proc) {
120 /* decode arguments into a CLEAN buffer */
121 bzero(xdrbuf, sizeof(xdrbuf)); /* required ! */
122 if (!svc_getargs(transp, pl->p_inproc, xdrbuf)) {
123 svcerr_decode(transp);
126 outdata = (*(pl->p_progname))(xdrbuf);
127 if (outdata == NULL && pl->p_outproc != xdr_void)
128 /* there was an error */
130 if (!svc_sendreply(transp, pl->p_outproc, outdata)) {
131 (void) fprintf(stderr,
132 "trouble replying to prog %d\n",
136 /* free the decoded arguments */
137 (void)svc_freeargs(transp, pl->p_inproc, xdrbuf);
140 (void) fprintf(stderr, "never registered prog %d\n", prog);