implements uptime on FreeBSD.

host.go

@@ -8,7 +8,7 @@ import (
 // This is not in the psutil but it useful.
 type HostInfoStat struct {
 	Hostname        string `json:"hostname"`
-	Uptime          int64  `json:"uptime"`
+	Uptime          uint64 `json:"uptime"`
 	Procs           uint64 `json:"procs"`          // number of processes
 	OS              string `json:"os"`             // ex: freebsd, linux
 	Platform        string `json:"platform"`       // ex: ubuntu, linuxmint

host_freebsd.go

@@ -7,19 +7,41 @@ import (
 	"encoding/binary"
 	"io/ioutil"
 	"os"
+	"os/exec"
+	"runtime"
 	"strconv"
 	"strings"
 	"unsafe"
 )
 
 func HostInfo() (*HostInfoStat, error) {
-	ret := &HostInfoStat{}
+	ret := &HostInfoStat{
+		OS:             runtime.GOOS,
+		PlatformFamily: "freebsd",
+	}
 
 	hostname, err := os.Hostname()
-	ret.Hostname = hostname
 	if err != nil {
 		return ret, err
 	}
+	ret.Hostname = hostname
+
+	out, err := exec.Command("uname", "-s").Output()
+	if err == nil {
+		ret.Platform = strings.ToLower(strings.TrimSpace(string(out)))
+	}
+
+	out, err = exec.Command("uname", "-r").Output()
+	if err == nil {
+		ret.PlatformVersion = strings.ToLower(strings.TrimSpace(string(out)))
+	}
+
+	values, err := doSysctrl("kern.boottime")
+	if err == nil {
+		// ex: { sec = 1392261637, usec = 627534 } Thu Feb 13 12:20:37 2014
+		v := strings.Replace(values[2], ",", "", 1)
+		ret.Uptime = mustParseUint64(v)
+	}
 
 	return ret, nil
 }