2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part. Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user.
9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
13 * Sun RPC is provided with no support and without any obligation on the
14 * part of Sun Microsystems, Inc. to assist in its use, correction,
15 * modification or enhancement.
17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22 * or profits or other special, indirect and consequential damages, even if
23 * Sun has been advised of the possibility of such damages.
25 * Sun Microsystems, Inc.
27 * Mountain View, California 94043
30 #if defined(LIBC_SCCS) && !defined(lint)
31 static char *rcsid = "$OpenBSD: svc_simple.c,v 1.6 1998/11/22 07:38:25 deraadt Exp $";
32 #endif /* LIBC_SCCS and not lint */
36 * Simplified front end to rpc.
38 * Copyright (C) 1984, Sun Microsystems, Inc.
45 #include <rpc/pmap_clnt.h>
46 #include <sys/socket.h>
49 static struct proglst {
50 char *(*p_progname)();
53 xdrproc_t p_inproc, p_outproc;
54 struct proglst *p_nxt;
56 static void universal();
57 static SVCXPRT *transp;
61 registerrpc(prognum, versnum, procnum, progname, inproc, outproc)
62 int prognum, versnum, procnum;
64 xdrproc_t inproc, outproc;
67 if (procnum == NULLPROC) {
68 (void) fprintf(stderr,
69 "can't reassign procedure number %u\n", NULLPROC);
73 transp = svcudp_create(RPC_ANYSOCK);
75 (void) fprintf(stderr, "couldn't create an rpc server\n");
79 (void) pmap_unset((u_long)prognum, (u_long)versnum);
80 if (!svc_register(transp, (u_long)prognum, (u_long)versnum,
81 universal, IPPROTO_UDP)) {
82 (void) fprintf(stderr, "couldn't register prog %d vers %d\n",
86 pl = (struct proglst *)malloc(sizeof(struct proglst));
88 (void) fprintf(stderr, "registerrpc: out of memory\n");
91 pl->p_progname = progname;
92 pl->p_prognum = prognum;
93 pl->p_procnum = procnum;
94 pl->p_inproc = inproc;
95 pl->p_outproc = outproc;
102 universal(rqstp, transp)
103 struct svc_req *rqstp;
108 char xdrbuf[UDPMSGSIZE];
112 * enforce "procnum 0 is echo" convention
114 if (rqstp->rq_proc == NULLPROC) {
115 if (svc_sendreply(transp, xdr_void, NULL) == FALSE) {
116 (void) fprintf(stderr, "xxx\n");
121 prog = rqstp->rq_prog;
122 proc = rqstp->rq_proc;
123 for (pl = proglst; pl != NULL; pl = pl->p_nxt)
124 if (pl->p_prognum == prog && pl->p_procnum == proc) {
125 /* decode arguments into a CLEAN buffer */
126 memset(xdrbuf, 0, sizeof(xdrbuf)); /* required ! */
127 if (!svc_getargs(transp, pl->p_inproc, xdrbuf)) {
128 svcerr_decode(transp);
131 outdata = (*(pl->p_progname))(xdrbuf);
132 if (outdata == NULL &&
133 pl->p_outproc != xdr_void)
134 /* there was an error */
136 if (!svc_sendreply(transp, pl->p_outproc, outdata)) {
137 (void) fprintf(stderr,
138 "trouble replying to prog %d\n",
142 /* free the decoded arguments */
143 (void)svc_freeargs(transp, pl->p_inproc, xdrbuf);
146 (void) fprintf(stderr, "never registered prog %d\n", prog);