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authorRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
committerRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
commit28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch)
tree15f07c4c43d635959c6afee96bde71fb1b3614ee /sunrpc/svc_simple.c
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initial import
Diffstat (limited to 'sunrpc/svc_simple.c')
-rw-r--r--sunrpc/svc_simple.c143
1 files changed, 143 insertions, 0 deletions
diff --git a/sunrpc/svc_simple.c b/sunrpc/svc_simple.c
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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);
+}
+