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