From a03e8a5be017f4741c029c04a3333bb655ab8059 Mon Sep 17 00:00:00 2001
From: Jeff Sickel <jas@corpus-callosum.com>
Date: Wed, 8 Jan 2014 21:22:18 +0100
Subject: [PATCH] plan9: lookup query must seek to offset 0 before reading or  
      writing /net/dns or /net/cs (see nbd(8)).

R=golang-codereviews
CC=0intro, golang-codereviews, rsc
https://golang.org/cl/49060043
---
 src/pkg/net/lookup_plan9.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/pkg/net/lookup_plan9.go b/src/pkg/net/lookup_plan9.go
index a755ff2aac..95c0f0b068 100644
--- a/src/pkg/net/lookup_plan9.go
+++ b/src/pkg/net/lookup_plan9.go
@@ -16,6 +16,10 @@ func query(filename, query string, bufSize int) (res []string, err error) {
 	}
 	defer file.Close()
 
+	_, err = file.Seek(0, 0)
+	if err != nil {
+		return
+	}
 	_, err = file.WriteString(query)
 	if err != nil {
 		return
-- 
2.48.1