Libinfo-392.1.tar.gz

[apple/libinfo.git] / nis.subproj / ypmatch_cache.c

diff --git a/nis.subproj/ypmatch_cache.c b/nis.subproj/ypmatch_cache.c
index b3514e9340e44d6630a583b07cee302833fdd923..19ae14967f1d02432aab61ba66d2ae1d6534056b 100644 (file)
--- a/nis.subproj/ypmatch_cache.c
+++ b/nis.subproj/ypmatch_cache.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@
  */
@@ -189,6 +188,7 @@ yp_match(indomain, inmap, inkey, inkeylen, outval, outvallen)
        struct timeval  tv;
        struct ypreq_key yprk;
        int tries = 0, r;
+       static int proto = YP_BIND_UDP;
 
        if (indomain == NULL || *indomain == '\0' || 
            strlen(indomain) > YPMAXDOMAIN || inmap == NULL ||
@@ -228,14 +228,19 @@ again:
 
        memset(&yprv, 0, sizeof yprv);
 
-       r = clnt_call(ysd->dom_client, YPPROC_MATCH,
-           xdr_ypreq_key, &yprk, xdr_ypresp_val, &yprv, tv);
-       if (r != RPC_SUCCESS) {
-               if (tries++)
-                       clnt_perror(ysd->dom_client, "yp_match: clnt_call");
-               ysd->dom_vers = -1;
+       r = clnt_call(ysd->dom_client, YPPROC_MATCH, (xdrproc_t)xdr_ypreq_key, &yprk, (xdrproc_t)xdr_ypresp_val, &yprv, tv);
+       if (r != RPC_SUCCESS)
+       {
+               /* call failed - switch protocols and try again */
+               if (tries++) clnt_perror(ysd->dom_client, "yp_match: clnt_call");
+
+               if (proto == YP_BIND_UDP) proto = YP_BIND_TCP;
+               else proto = YP_BIND_UDP;
+               ysd->dom_vers = proto;
+
                goto again;
        }
+
        if (!(r = ypprot_err(yprv.stat))) {
                *outvallen = yprv.val.valdat_len;
                if ((*outval = malloc(*outvallen + 1)) == NULL) {
@@ -252,7 +257,7 @@ again:
 #endif
        }
 out:
-       xdr_free(xdr_ypresp_val, (char *) &yprv);
+       xdr_free((xdrproc_t)xdr_ypresp_val, (char *) &yprv);
        _yp_unbind(ysd);
        return r;
 }
@@ -273,6 +278,7 @@ yp_next(indomain, inmap, inkey, inkeylen, outkey, outkeylen, outval, outvallen)
        struct dom_binding *ysd;
        struct timeval  tv;
        int tries = 0, r;
+       static int proto = YP_BIND_UDP;
 
        if (indomain == NULL || *indomain == '\0' ||
            strlen(indomain) > YPMAXDOMAIN || inmap == NULL ||
@@ -295,14 +301,19 @@ again:
        yprk.key.keydat_len = inkeylen;
        (void)memset(&yprkv, 0, sizeof yprkv);
 
-       r = clnt_call(ysd->dom_client, YPPROC_NEXT,
-           xdr_ypreq_key, &yprk, xdr_ypresp_key_val, &yprkv, tv);
-       if (r != RPC_SUCCESS) {
-               if (tries++)
-                       clnt_perror(ysd->dom_client, "yp_next: clnt_call");
-               ysd->dom_vers = -1;
+       r = clnt_call(ysd->dom_client, YPPROC_NEXT, (xdrproc_t)xdr_ypreq_key, &yprk, (xdrproc_t)xdr_ypresp_key_val, &yprkv, tv);
+       if (r != RPC_SUCCESS)
+       {
+               /* call failed - switch protocols and try again */
+               if (tries++) clnt_perror(ysd->dom_client, "yp_next: clnt_call");
+
+               if (proto == YP_BIND_UDP) proto = YP_BIND_TCP;
+               else proto = YP_BIND_UDP;
+               ysd->dom_vers = proto;
+
                goto again;
        }
+
        if (!(r = ypprot_err(yprkv.stat))) {
                *outkeylen = yprkv.key.keydat_len;
                if ((*outkey = malloc(*outkeylen + 1)) == NULL)
@@ -319,7 +330,7 @@ again:
                        (*outval)[*outvallen] = '\0';
                }
        }
-       xdr_free(xdr_ypresp_key_val, (char *) &yprkv);
+       xdr_free((xdrproc_t)xdr_ypresp_key_val, (char *) &yprkv);
        _yp_unbind(ysd);
        return r;
 }