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// errstr.go -- Error strings when there is no strerror_r.

// Copyright 2011 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.

package syscall

import (

        "sync"

        "unsafe"

)

//sysnb strerror(errnum int) (buf *byte)

//strerror(errnum int) *byte

var errstr_lock sync.Mutex

func Errstr(errno int) string {

        errstr_lock.Lock()

        bp := strerror(errno)

        b := (*[1000]byte)(unsafe.Pointer(bp))

        i := 0

        for b[i] != 0 {

                i++

        }

        s := string(b[:i])

        errstr_lock.Unlock()

        return s

}