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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 <string.h>
#include <rpc/rpc.h>
#include <rpc/pmap_clnt.h>
#include <sys/socket.h>
#include <netdb.h>
static struct proglst
{
char *(*p_progname) (char *);
int p_prognum;
int p_procnum;
xdrproc_t p_inproc, p_outproc;
struct proglst *p_nxt;
}
*proglst;
static void universal (struct svc_req *rqstp, SVCXPRT *transp);
static SVCXPRT *transp;
int
registerrpc (u_long prognum, u_long versnum, u_long procnum,
char *(*progname) (char *), xdrproc_t inproc, xdrproc_t outproc)
{
struct proglst *pl;
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) fputs (_("couldn't create an rpc server\n"), stderr);
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 (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, (xdrproc_t)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 != (xdrproc_t)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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