/*
* 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(LIBC_SCCS) && !defined(lint)
/*static char *sccsid = "from: @(#)svc_simple.c 1.18 87/08/11 Copyr 1984 Sun Micro";*/
/*static char *sccsid = "from: @(#)svc_simple.c 2.2 88/08/01 4.0 RPCSRC";*/
static char *rcsid = "$FreeBSD: src/lib/libc/rpc/svc_simple.c,v 1.9 1999/08/28 00:00:50 peter Exp $";
#endif
/*
* svc_simple.c
* Simplified front end to rpc.
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <rpc/rpc.h>
#include <rpc/pmap_clnt.h>
#include <sys/socket.h>
#include <netdb.h>
struct prog_lst {
char *(*p_progname)();
int p_prognum;
int p_procnum;
xdrproc_t p_inproc, p_outproc;
struct prog_lst *p_nxt;
};
static void universal();
#define proglst ((struct prog_lst *)(rtems_rpc_task_variables)->svc_simple_proglst)
#define pl ((struct prog_lst *)(rtems_rpc_task_variables)->svc_simple_pl)
#define transp ((SVCXPRT *)(rtems_rpc_task_variables)->svc_simple_transp)
int
registerrpc(prognum, versnum, procnum, progname, inproc, outproc)
int prognum, versnum, procnum;
char *(*progname)();
xdrproc_t inproc, outproc;
{
if (procnum == NULLPROC) {
(void) fprintf(stderr,
"can't reassign procedure number %ld\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 prog_lst *)malloc(sizeof(struct prog_lst));
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, atransp)
struct svc_req *rqstp;
SVCXPRT *atransp;
{
int prog, proc;
char *outdata;
char xdrbuf[UDPMSGSIZE];
struct prog_lst *lpl;
/*
* enforce "procnum 0 is echo" convention
*/
if (rqstp->rq_proc == NULLPROC) {
if (svc_sendreply(atransp, xdr_void, NULL) == FALSE) {
(void) fprintf(stderr, "xxx\n");
exit(1);
}
return;
}
prog = rqstp->rq_prog;
proc = rqstp->rq_proc;
for (lpl = proglst; lpl != NULL; lpl = lpl->p_nxt)
if (lpl->p_prognum == prog && lpl->p_procnum == proc) {
/* decode arguments into a CLEAN buffer */
memset(xdrbuf, 0, sizeof(xdrbuf)); /* required ! */
if (!svc_getargs(atransp, lpl->p_inproc, xdrbuf)) {
svcerr_decode(atransp);
return;
}
outdata = (*(lpl->p_progname))(xdrbuf);
if (outdata == NULL && lpl->p_outproc != xdr_void)
/* there was an error */
return;
if (!svc_sendreply(atransp, lpl->p_outproc, outdata)) {
(void) fprintf(stderr,
"trouble replying to prog %d\n",
lpl->p_prognum);
exit(1);
}
/* free the decoded arguments */
(void)svc_freeargs(atransp, lpl->p_inproc, xdrbuf);
return;
}
(void) fprintf(stderr, "never registered prog %d\n", prog);
exit(1);
}
