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 #define __FORCE_GLIBC__
35 * Simplified front end to rpc.
37 * Copyright (C) 1984, Sun Microsystems, Inc.
42 #include <sys/socket.h>
45 static struct proglst {
46 char *(*p_progname) ();
49 xdrproc_t p_inproc, p_outproc;
50 struct proglst *p_nxt;
52 static void universal();
53 static SVCXPRT *transp;
56 extern bool_t pmap_unset(u_long program, u_long version);
58 int registerrpc(prognum, versnum, procnum, progname, inproc, outproc)
60 xdrproc_t inproc, outproc;
63 if (procnum == NULLPROC) {
64 (void) fprintf(stderr,
65 "can't reassign procedure number %lu\n", NULLPROC);
69 transp = svcudp_create(RPC_ANYSOCK);
71 (void) fprintf(stderr, "couldn't create an rpc server\n");
75 (void) pmap_unset((u_long) prognum, (u_long) versnum);
76 if (!svc_register(transp, (u_long) prognum, (u_long) versnum,
77 universal, IPPROTO_UDP)) {
78 (void) fprintf(stderr, "couldn't register prog %d vers %d\n",
82 pl = (struct proglst *) malloc(sizeof(struct proglst));
85 (void) fprintf(stderr, "registerrpc: out of memory\n");
88 pl->p_progname = progname;
89 pl->p_prognum = prognum;
90 pl->p_procnum = procnum;
91 pl->p_inproc = inproc;
92 pl->p_outproc = outproc;
98 static void universal(rqstp, transp)
99 struct svc_req *rqstp;
104 char xdrbuf[UDPMSGSIZE];
108 * enforce "procnum 0 is echo" convention
110 if (rqstp->rq_proc == NULLPROC) {
111 if (svc_sendreply(transp, (xdrproc_t) xdr_void, (char *) NULL) == FALSE) {
112 (void) fprintf(stderr, "xxx\n");
117 prog = rqstp->rq_prog;
118 proc = rqstp->rq_proc;
119 for (pl = proglst; pl != NULL; pl = pl->p_nxt)
120 if (pl->p_prognum == prog && pl->p_procnum == proc) {
121 /* decode arguments into a CLEAN buffer */
122 bzero(xdrbuf, sizeof(xdrbuf)); /* required ! */
123 if (!svc_getargs(transp, pl->p_inproc, xdrbuf)) {
124 svcerr_decode(transp);
127 outdata = (*(pl->p_progname)) (xdrbuf);
128 if (outdata == NULL && pl->p_outproc != (xdrproc_t) xdr_void)
129 /* there was an error */
131 if (!svc_sendreply(transp, pl->p_outproc, outdata)) {
132 (void) fprintf(stderr,
133 "trouble replying to prog %d\n",
137 /* free the decoded arguments */
138 (void) svc_freeargs(transp, pl->p_inproc, xdrbuf);
141 (void) fprintf(stderr, "never registered prog %d\n", prog);