Subversion Repositories openrisc

// $G $D/$F.go && $L $F.$A && ./$A.out

// Copyright 2010 The Go Authors.  All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

// Issue 1011.  Removing either #1 or #3 avoided the crash at #2.

package main

import (

        "io"

        "strings"

)

func readU16BE(b []byte) uint16 {

        b[0] = 0

        b[1] = 1

        return uint16(b[0])<<8 + uint16(b[1]) // #1

        n := uint16(b[0])<<8 + uint16(b[1])

        return n

}

func readStr(r io.Reader, b []byte) string {

        n := readU16BE(b)

        if int(n) > len(b) {

                return "err: n>b"

        }

        io.ReadFull(r, b[0:n]) // #2

        return string(b[0:n])  // #3

        return "ok"

}

func main() {

        br := strings.NewReader("abcd")

        readStr(br, make([]byte, 256))

}