Add gss support from citi @ umich

[nfs-utils.git] / support / rpc / svc_simple.c

diff --git a/support/rpc/svc_simple.c b/support/rpc/svc_simple.c
new file mode 100644 (file)
index 0000000..b697c61
--- /dev/null
+++ b/support/rpc/svc_simple.c
@@ -0,0 +1,149 @@
+/*
+ * 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 *rcsid = "$OpenBSD: svc_simple.c,v 1.6 1998/11/22 07:38:25 deraadt Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+/*
+ * 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>
+
+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;
+
+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 %u\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, 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 */
+                       memset(xdrbuf, 0, 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);
+}
+