58 lines
1.8 KiB
Go
58 lines
1.8 KiB
Go
|
// Copyright 2019 The Prometheus Authors
|
||
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
// you may not use this file except in compliance with the License.
|
||
|
|
// You may obtain a copy of the License at
|
||
|
|
//
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
//
|
||
|
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
// See the License for the specific language governing permissions and
|
||
|
|
// limitations under the License.
|
||
|
|
|
||
|
|
// +build !nouname
|
||
|
|
|
||
|
|
package collector
|
||
|
|
|
||
|
|
import (
|
||
|
|
"bytes"
|
||
|
|
"strings"
|
||
|
|
|
||
|
|
"golang.org/x/sys/unix"
|
||
|
|
)
|
||
|
|
|
||
|
|
func getUname() (uname, error) {
|
||
|
|
var utsname unix.Utsname
|
||
|
|
if err := unix.Uname(&utsname); err != nil {
|
||
|
|
return uname{}, err
|
||
|
|
}
|
||
|
|
|
||
|
|
// We do a little bit of work here to emulate what happens in the Linux
|
||
|
|
// uname calls since FreeBSD uname doesn't have a Domainname.
|
||
|
|
nodename := string(utsname.Nodename[:bytes.IndexByte(utsname.Nodename[:], 0)])
|
||
|
|
split := strings.SplitN(nodename, ".", 2)
|
||
|
|
|
||
|
|
// We'll always have at least a single element in the array. We assume this
|
||
|
|
// is the hostname.
|
||
|
|
hostname := split[0]
|
||
|
|
|
||
|
|
// If we have more than one element, we assume this is the domainname.
|
||
|
|
// Otherwise leave it to "(none)" like Linux.
|
||
|
|
domainname := "(none)"
|
||
|
|
if len(split) > 1 {
|
||
|
|
domainname = split[1]
|
||
|
|
}
|
||
|
|
|
||
|
|
output := uname{
|
||
|
|
SysName: string(utsname.Sysname[:bytes.IndexByte(utsname.Sysname[:], 0)]),
|
||
|
|
Release: string(utsname.Release[:bytes.IndexByte(utsname.Release[:], 0)]),
|
||
|
|
Version: string(utsname.Version[:bytes.IndexByte(utsname.Version[:], 0)]),
|
||
|
|
Machine: string(utsname.Machine[:bytes.IndexByte(utsname.Machine[:], 0)]),
|
||
|
|
NodeName: hostname,
|
||
|
|
DomainName: domainname,
|
||
|
|
}
|
||
|
|
|
||
|
|
return output, nil
|
||
|
|
}
|