82 lines
1.3 KiB
Go
82 lines
1.3 KiB
Go
// +build freebsd
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package gopsutil
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import (
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"bytes"
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"encoding/binary"
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"io/ioutil"
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"os"
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"strconv"
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"strings"
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"unsafe"
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)
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func HostInfo() (HostInfoStat, error) {
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ret := HostInfoStat{}
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hostname, err := os.Hostname()
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ret.Hostname = hostname
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if err != nil {
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return ret, err
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}
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return ret, nil
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}
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func BootTime() (int64, error) {
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values, err := doSysctrl("kern.boottime")
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if err != nil {
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return 0, err
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}
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// ex: { sec = 1392261637, usec = 627534 } Thu Feb 13 12:20:37 2014
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v := strings.Replace(values[2], ",", "", 1)
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boottime, err := strconv.ParseInt(v, 10, 64)
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if err != nil {
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return 0, err
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}
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return boottime, nil
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}
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func Users() ([]UserStat, error) {
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utmpfile := "/var/run/utmp"
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var ret []UserStat
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file, err := os.Open(utmpfile)
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if err != nil {
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return ret, err
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}
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buf, err := ioutil.ReadAll(file)
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if err != nil {
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return ret, err
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}
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u := utmp{}
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entrySize := int(unsafe.Sizeof(u))
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count := len(buf) / entrySize
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for i := 0; i < count; i++ {
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b := buf[i*entrySize : i*entrySize+entrySize]
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var u utmp
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br := bytes.NewReader(b)
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err := binary.Read(br, binary.LittleEndian, &u)
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if err != nil {
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continue
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}
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user := UserStat{
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User: byteToString(u.UtName[:]),
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Terminal: byteToString(u.UtLine[:]),
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Host: byteToString(u.UtHost[:]),
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Started: int(u.UtTime),
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}
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ret = append(ret, user)
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}
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return ret, nil
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}
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