From ff388611f461b4a4ee044ce86aedda9ce18dfc97 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Tue, 4 Aug 2009 16:01:11 +1000
Subject: fixed support for readx greater than 64k

This fixes bug 6547, where smbclient in S3 reads more than 64k at a
time with readx.
---
 source4/ntvfs/posix/pvfs_read.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'source4/ntvfs')

diff --git a/source4/ntvfs/posix/pvfs_read.c b/source4/ntvfs/posix/pvfs_read.c
index d9080d632d..75fba3c90d 100644
--- a/source4/ntvfs/posix/pvfs_read.c
+++ b/source4/ntvfs/posix/pvfs_read.c
@@ -59,8 +59,8 @@ NTSTATUS pvfs_read(struct ntvfs_module_context *ntvfs,
 	}
 
 	maxcnt = rd->readx.in.maxcnt;
-	if (maxcnt > UINT16_MAX && req->ctx->protocol < PROTOCOL_SMB2) {
-		maxcnt = 0;
+	if (maxcnt > 2*UINT16_MAX && req->ctx->protocol < PROTOCOL_SMB2) {
+		return NT_STATUS_INVALID_PARAMETER;
 	}
 
 	status = pvfs_check_lock(pvfs, f, req->smbpid, 
-- 
cgit