[PATCH] Fix xdr_long and xdr_u_long

[Jakub Jelinek]

Hi!

xdr_long and xdr_u_long silently discard upper bits on 64bit arches, they
should fail instead.

2001-01-03  Jakub Jelinek  <jakub@redhat.com>

	* sunrpc/xdr.c (xdr_long, xdr_u_long): Return FALSE if trying to
	encode value which does not fit in the 32bit type.

--- libc/sunrpc/xdr.c.jj	Sat Jul 15 18:45:26 2000
+++ libc/sunrpc/xdr.c	Wed Jan  3 12:31:41 2001
@@ -159,7 +159,9 @@ bool_t
 xdr_long (XDR *xdrs, long *lp)
 {
 
-  if (xdrs->x_op == XDR_ENCODE)
+  if (xdrs->x_op == XDR_ENCODE
+      && (sizeof (int32_t) == sizeof (long)
+	  || (int32_t) *lp == *lp))
     return XDR_PUTLONG (xdrs, lp);
 
   if (xdrs->x_op == XDR_DECODE)
@@ -192,6 +194,10 @@ xdr_u_long (XDR *xdrs, u_long *ulp)
       }
 
     case XDR_ENCODE:
+      if (sizeof (uint32_t) != sizeof (u_long)
+	  && (uint32_t) *ulp != *ulp)
+	return FALSE;
+
       return XDR_PUTLONG (xdrs, (long *) ulp);
 
     case XDR_FREE:

	Jakub