source: rtems/cpukit/librpc/src/rpc/svc_simple.c @ 12db3bda

4.104.114.84.95
Last change on this file since 12db3bda was 12db3bda, checked in by Ralf Corsepius <ralf.corsepius@…>, on 05/25/05 at 15:07:19

Misc. fixes.

  • Property mode set to 100644
File size: 4.4 KB
Line 
1/*
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.
8 *
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.
12 *
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.
16 *
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.
20 *
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.
24 *
25 * Sun Microsystems, Inc.
26 * 2550 Garcia Avenue
27 * Mountain View, California  94043
28 */
29
30#if defined(LIBC_SCCS) && !defined(lint)
31/*static char *sccsid = "from: @(#)svc_simple.c 1.18 87/08/11 Copyr 1984 Sun Micro";*/
32/*static char *sccsid = "from: @(#)svc_simple.c 2.2 88/08/01 4.0 RPCSRC";*/
33static char *rcsid = "$FreeBSD: src/lib/libc/rpc/svc_simple.c,v 1.9 1999/08/28 00:00:50 peter Exp $";
34#endif
35
36/*
37 * svc_simple.c
38 * Simplified front end to rpc.
39 *
40 * Copyright (C) 1984, Sun Microsystems, Inc.
41 */
42
43#include <stdio.h>
44#include <stdlib.h>
45#include <string.h>
46#include <inttypes.h>
47#include <rpc/rpc.h>
48#include <rpc/pmap_clnt.h>
49#include <sys/socket.h>
50#include <netdb.h>
51
52struct prog_lst {
53        char *(*p_progname)();
54        rpcprog_t  p_prognum;
55        rpcproc_t  p_procnum;
56        xdrproc_t p_inproc, p_outproc;
57        struct prog_lst *p_nxt;
58};
59static void universal();
60#define proglst (rtems_rpc_task_variables->svc_simple_proglst)
61#define pl (rtems_rpc_task_variables->svc_simple_pl)
62#define transp (rtems_rpc_task_variables->svc_simple_transp)
63
64int
65registerrpc(
66        int prognum,
67        int versnum,
68        int procnum,
69        char *(*progname)(),
70        xdrproc_t inproc,
71        xdrproc_t outproc )
72{
73
74        if (procnum == NULLPROC) {
75                (void) fprintf(stderr,
76                    "can't reassign procedure number %" PRIu32 "\n", NULLPROC);
77                return (-1);
78        }
79        if (transp == 0) {
80                transp = svcudp_create(RPC_ANYSOCK);
81                if (transp == NULL) {
82                        (void) fprintf(stderr, "couldn't create an rpc server\n");
83                        return (-1);
84                }
85        }
86        (void) pmap_unset((u_long)prognum, (u_long)versnum);
87        if (!svc_register(transp, (u_long)prognum, (u_long)versnum,
88            universal, IPPROTO_UDP)) {
89                (void) fprintf(stderr, "couldn't register prog %d vers %d\n",
90                    prognum, versnum);
91                return (-1);
92        }
93        pl = (struct prog_lst *)malloc(sizeof(struct prog_lst));
94        if (pl == NULL) {
95                (void) fprintf(stderr, "registerrpc: out of memory\n");
96                return (-1);
97        }
98        pl->p_progname = progname;
99        pl->p_prognum = prognum;
100        pl->p_procnum = procnum;
101        pl->p_inproc = inproc;
102        pl->p_outproc = outproc;
103        pl->p_nxt = proglst;
104        proglst = pl;
105        return (0);
106}
107
108static void
109universal(
110        struct svc_req *rqstp,
111        SVCXPRT *atransp )
112{
113        int prog, proc;
114        char *outdata;
115        char xdrbuf[UDPMSGSIZE];
116        struct prog_lst *lpl;
117
118        /*
119         * enforce "procnum 0 is echo" convention
120         */
121        if (rqstp->rq_proc == NULLPROC) {
122                if (svc_sendreply(atransp, (xdrproc_t) xdr_void, NULL) == FALSE) {
123                        (void) fprintf(stderr, "xxx\n");
124                        exit(1);
125                }
126                return;
127        }
128        prog = rqstp->rq_prog;
129        proc = rqstp->rq_proc;
130        for (lpl = proglst; lpl != NULL; lpl = lpl->p_nxt)
131                if (lpl->p_prognum == prog && lpl->p_procnum == proc) {
132                        /* decode arguments into a CLEAN buffer */
133                        memset(xdrbuf, 0, sizeof(xdrbuf)); /* required ! */
134                        if (!svc_getargs(atransp, lpl->p_inproc, xdrbuf)) {
135                                svcerr_decode(atransp);
136                                return;
137                        }
138                        outdata = (*(lpl->p_progname))(xdrbuf);
139                        if (outdata == NULL &&
140                            lpl->p_outproc != (xdrproc_t) xdr_void)
141                                /* there was an error */
142                                return;
143                        if (!svc_sendreply(atransp, lpl->p_outproc, outdata)) {
144                                (void) fprintf(stderr,
145                                    "trouble replying to prog %d\n",
146                                    lpl->p_prognum);
147                                exit(1);
148                        }
149                        /* free the decoded arguments */
150                        (void)svc_freeargs(atransp, lpl->p_inproc, xdrbuf);
151                        return;
152                }
153        (void) fprintf(stderr, "never registered prog %d\n", prog);
154        exit(1);
155}
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