runtime: abort stack scan in cases that we cannot unwind the stack
[gcc.git] / libgo / go / os / sys_plan9.go
1 // Copyright 2011 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
4
5 package os
6
7 func hostname() (name string, err error) {
8 f, err := Open("#c/sysname")
9 if err != nil {
10 return "", err
11 }
12 defer f.Close()
13
14 var buf [128]byte
15 n, err := f.Read(buf[:len(buf)-1])
16
17 if err != nil {
18 return "", err
19 }
20 if n > 0 {
21 buf[n] = 0
22 }
23 return string(buf[0:n]), nil
24 }