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/* @(#)svc_simple.c 2.2 88/08/01 4.0 RPCSRC */
/*
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
* unrestricted use provided that this legend is included on all tape
* media and as a part of the software program in whole or part. Users
* may copy or modify Sun RPC without charge, but are not authorized
* to license or distribute it to anyone else except as part of a product or
* program developed by the user.
*
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
*
* Sun RPC is provided with no support and without any obligation on the
* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
*
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
* OR ANY PART THEREOF.
*
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
* or profits or other special, indirect and consequential damages, even if
* Sun has been advised of the possibility of such damages.
*
* Sun Microsystems, Inc.
* 2550 Garcia Avenue
* Mountain View, California 94043
*/
#if !defined(lint) && defined(SCCSIDS)
static char sccsid[] = "@(#)svc_simple.c 1.18 87/08/11 Copyr 1984 Sun Micro";
#endif
/*
* svc_simple.c
* Simplified front end to rpc.
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*/
#include <stdio.h>
#include <rpc/rpc.h>
#include <sys/socket.h>
#include <netdb.h>
static struct proglst {
char *(*p_progname)();
int p_prognum;
int p_procnum;
xdrproc_t p_inproc, p_outproc;
struct proglst *p_nxt;
} *proglst;
static void universal();
static SVCXPRT *transp;
struct proglst *pl;
registerrpc(prognum, versnum, procnum, progname, inproc, outproc)
char *(*progname)();
xdrproc_t inproc, outproc;
{
if (procnum == NULLPROC) {
(void) fprintf(stderr,
"can't reassign procedure number %d\n", NULLPROC);
return (-1);
}
if (transp == 0) {
transp = svcudp_create(RPC_ANYSOCK);
if (transp == NULL) {
(void) fprintf(stderr, "couldn't create an rpc server\n");
return (-1);
}
}
(void) pmap_unset((u_long)prognum, (u_long)versnum);
if (!svc_register(transp, (u_long)prognum, (u_long)versnum,
universal, IPPROTO_UDP)) {
(void) fprintf(stderr, "couldn't register prog %d vers %d\n",
prognum, versnum);
return (-1);
}
pl = (struct proglst *)malloc(sizeof(struct proglst));
if (pl == NULL) {
(void) fprintf(stderr, "registerrpc: out of memory\n");
return (-1);
}
pl->p_progname = progname;
pl->p_prognum = prognum;
pl->p_procnum = procnum;
pl->p_inproc = inproc;
pl->p_outproc = outproc;
pl->p_nxt = proglst;
proglst = pl;
return (0);
}
static void
universal(rqstp, transp)
struct svc_req *rqstp;
SVCXPRT *transp;
{
int prog, proc;
char *outdata;
char xdrbuf[UDPMSGSIZE];
struct proglst *pl;
/*
* enforce "procnum 0 is echo" convention
*/
if (rqstp->rq_proc == NULLPROC) {
if (svc_sendreply(transp, xdr_void, (char *)NULL) == FALSE) {
(void) fprintf(stderr, "xxx\n");
exit(1);
}
return;
}
prog = rqstp->rq_prog;
proc = rqstp->rq_proc;
for (pl = proglst; pl != NULL; pl = pl->p_nxt)
if (pl->p_prognum == prog && pl->p_procnum == proc) {
/* decode arguments into a CLEAN buffer */
bzero(xdrbuf, sizeof(xdrbuf)); /* required ! */
if (!svc_getargs(transp, pl->p_inproc, xdrbuf)) {
svcerr_decode(transp);
return;
}
outdata = (*(pl->p_progname))(xdrbuf);
if (outdata == NULL && pl->p_outproc != xdr_void)
/* there was an error */
return;
if (!svc_sendreply(transp, pl->p_outproc, outdata)) {
(void) fprintf(stderr,
"trouble replying to prog %d\n",
pl->p_prognum);
exit(1);
}
/* free the decoded arguments */
(void)svc_freeargs(transp, pl->p_inproc, xdrbuf);
return;
}
(void) fprintf(stderr, "never registered prog %d\n", prog);
exit(1);
}
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