2013-04-30  Patsy Franklin <pfrankli@redhat.com>

        * nis/yp_xdr.c: Defined XDRMAXNAME and XDRMAXRECORD.
        (xdr_domainname): Use XDRMAXNAME as maxsize.
        (xdr_mapname): Use XDRMAXNAME as maxsize.
        (xdr_peername): Use XDRMAXNAME as maxsize.
        (xdr_keydat): Use XDRMAXRECORD as maxsize.
        (xdr_valdat): Use XDRMAXRECORD as maxsize.

diff -Nrup a/nis/yp_xdr.c b/nis/yp_xdr.c
--- a/nis/yp_xdr.c	2012-06-30 15:12:34.000000000 -0400
+++ b/nis/yp_xdr.c	2013-04-30 05:36:02.492835503 -0400
@@ -32,6 +32,14 @@
 #include <rpcsvc/yp.h>
 #include <rpcsvc/ypclnt.h>
 
+/* The specification suggests 1024 as a maximum length of all fields,
+   but current linux systems usually don't use any limits. So, to stay
+   as much compatible as possible with recent linux systems we choose
+   limits large enough to avoid problems. */
+
+#define XDRMAXNAME 1024
+#define XDRMAXRECORD 16 * 1024 * 1024
+
 bool_t
 xdr_ypstat (XDR *xdrs, ypstat *objp)
 {
@@ -49,21 +57,21 @@ libnsl_hidden_def (xdr_ypxfrstat)
 bool_t
 xdr_domainname (XDR *xdrs, domainname *objp)
 {
-  return xdr_string (xdrs, objp, ~0);
+  return xdr_string (xdrs, objp, XDRMAXNAME);
 }
 libnsl_hidden_def (xdr_domainname)
 
 bool_t
 xdr_mapname (XDR *xdrs, mapname *objp)
 {
-  return xdr_string (xdrs, objp, ~0);
+  return xdr_string (xdrs, objp, XDRMAXNAME);
 }
 libnsl_hidden_def (xdr_mapname)
 
 bool_t
 xdr_peername (XDR *xdrs, peername *objp)
 {
-  return xdr_string (xdrs, objp, ~0);
+  return xdr_string (xdrs, objp, XDRMAXNAME);
 }
 libnsl_hidden_def (xdr_peername)
 
@@ -71,7 +79,7 @@ bool_t
 xdr_keydat (XDR *xdrs, keydat *objp)
 {
   return xdr_bytes (xdrs, (char **) &objp->keydat_val,
-		    (u_int *) &objp->keydat_len, ~0);
+		    (u_int *) &objp->keydat_len, XDRMAXRECORD);
 }
 libnsl_hidden_def (xdr_keydat)
 
@@ -79,7 +87,7 @@ bool_t
 xdr_valdat (XDR *xdrs, valdat *objp)
 {
   return xdr_bytes (xdrs, (char **) &objp->valdat_val,
-		    (u_int *) &objp->valdat_len, ~0);
+		    (u_int *) &objp->valdat_len, XDRMAXRECORD);
 }
 libnsl_hidden_def (xdr_valdat)