29 lines
589 B
Go
29 lines
589 B
Go
|
// Copyright 2009 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.
|
||
|
|
|
||
|
|
// Linux-specific
|
||
|
|
|
||
|
|
package os
|
||
|
|
|
||
|
|
|
||
|
|
// Hostname returns the host name reported by the kernel.
|
||
|
|
func Hostname() (name string, err Error) {
|
||
|
|
f, err := Open("/proc/sys/kernel/hostname", O_RDONLY, 0)
|
||
|
|
if err != nil {
|
||
|
|
return "", err
|
||
|
|
}
|
||
|
|
defer f.Close()
|
||
|
|
|
||
|
|
var buf [512]byte // Enough for a DNS name.
|
||
|
|
n, err := f.Read(buf[0:])
|
||
|
|
if err != nil {
|
||
|
|
return "", err
|
||
|
|
}
|
||
|
|
|
||
|
|
if n > 0 && buf[n-1] == '\n' {
|
||
|
|
n--
|
||
|
|
}
|
||
|
|
return string(buf[0:n]), nil
|
||
|
|
}
|