X-Git-Url: https://git.saurik.com/apple/libinfo.git/blobdiff_plain/ccd4a120fd72e1cd2071458320f7a1914ef55421..f64cfb2378dc3a60cd30c50180a366ec54b98781:/nis.subproj/yp_order.c

diff --git a/nis.subproj/yp_order.c b/nis.subproj/yp_order.c
index 294fa81..72946d7 100644
--- a/nis.subproj/yp_order.c
+++ b/nis.subproj/yp_order.c
@@ -3,22 +3,21 @@
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
- * 
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
+ * Reserved.  This file contains Original Code and/or Modifications of
+ * Original Code as defined in and that are subject to the Apple Public
+ * Source License Version 1.1 (the "License").  You may not use this file
+ * except in compliance with the License.  Please obtain a copy of the
+ * License at http://www.apple.com/publicsource and read it before using
+ * this file.
  * 
  * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
  * 
  * @APPLE_LICENSE_HEADER_END@
  */
@@ -83,7 +82,8 @@ yp_order(indomain, inmap, outorder)
 	struct ypresp_order ypro;
 	struct ypreq_nokey yprnk;
 	struct timeval  tv;
-	int             r = 0;
+	int tries = 0, r = 0;
+	static int proto = YP_BIND_UDP;
 
 	if (indomain == NULL || *indomain == '\0' ||
 	    strlen(indomain) > YPMAXDOMAIN || inmap == NULL ||
@@ -103,7 +103,7 @@ again:
 	(void)memset(&ypro, 0, sizeof ypro);
 
 	r = clnt_call(ysd->dom_client, YPPROC_ORDER,
-	    xdr_ypreq_nokey, &yprnk, xdr_ypresp_order, &ypro, tv);
+	    (xdrproc_t)xdr_ypreq_nokey, &yprnk, (xdrproc_t)xdr_ypresp_order, &ypro, tv);
 	/*
 	 * XXX
 	 * NIS+ YP emulation package does not impliment YPPROC_ORDER
@@ -112,13 +112,21 @@ again:
 		r = YPERR_YPERR;
 		goto bail;
 	}
-	if (r != RPC_SUCCESS) {
-		clnt_perror(ysd->dom_client, "yp_order: clnt_call");
-		ysd->dom_vers = -1;
+
+	if (r != RPC_SUCCESS)
+	{
+		/* call failed - switch protocols and try again */
+		if (tries++) clnt_perror(ysd->dom_client, "yp_order: clnt_call");
+
+		if (proto == YP_BIND_UDP) proto = YP_BIND_TCP;
+		else proto = YP_BIND_UDP;
+		ysd->dom_vers = proto;
+
 		goto again;
 	}
+
 	*outorder = ypro.ordernum;
-	xdr_free(xdr_ypresp_order, (char *) &ypro);
+	xdr_free((xdrproc_t)xdr_ypresp_order, (char *) &ypro);
 	r = ypprot_err(ypro.stat);
 bail:
 	_yp_unbind(ysd);