Reset the record lenght and received bytes once a record

is finished. This fixes clients doing two RPCs over the
same connection at the same time. Without this fix, we
could end with a reply to old data.

Submitted by:	Frank van der Linden <fvdl@netbsd.org>
Reviewed by:	rwatson
Obtained from:	NetBSD

1 files changed, 9 insertions, 0 deletions

diff --git a/lib/libc/xdr/xdr_rec.c b/lib/libc/xdr/xdr_rec.c
index a09c496..e899ebb 100644
--- a/lib/libc/xdr/xdr_rec.c
+++ b/lib/libc/xdr/xdr_rec.c
@@ -609,6 +609,7 @@ __xdrrec_getrec(xdrs, statp, expectdata)
 			rstrm->fbtbc = rstrm->in_reclen;
 			rstrm->in_boundry = rstrm->in_base + rstrm->in_reclen;
 			rstrm->in_finger = rstrm->in_base;
+			rstrm->in_reclen = rstrm->in_received = 0;
 			*statp = XPRT_MOREREQS;
 			return TRUE;
 		}
@@ -686,6 +687,14 @@ get_input_bytes(rstrm, addr, len)
 {
 	size_t current;
 
+	if (rstrm->nonblock) {
+		if (len > (int)(rstrm->in_boundry - rstrm->in_finger))
+			return FALSE;
+		memcpy(addr, rstrm->in_finger, (size_t)len);
+		rstrm->in_finger += len;
+		return TRUE;
+	}
+
 	while (len > 0) {
 		current = (size_t)((long)rstrm->in_boundry -
 		    (long)rstrm->in_finger);