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62 lines
1.3 KiB
62 lines
1.3 KiB
package util
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import (
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"net"
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"strconv"
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"strings"
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"github.com/seaweedfs/seaweedfs/weed/glog"
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)
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func DetectedHostAddress() string {
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netInterfaces, err := net.Interfaces()
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if err != nil {
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glog.V(0).Infof("failed to detect net interfaces: %v", err)
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return ""
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}
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if v4Address := selectIpV4(netInterfaces, true); v4Address != "" {
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return v4Address
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}
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if v6Address := selectIpV4(netInterfaces, false); v6Address != "" {
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return v6Address
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}
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return "localhost"
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}
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func selectIpV4(netInterfaces []net.Interface, isIpV4 bool) string {
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for _, netInterface := range netInterfaces {
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if (netInterface.Flags & net.FlagUp) == 0 {
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continue
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}
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addrs, err := netInterface.Addrs()
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if err != nil {
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glog.V(0).Infof("get interface addresses: %v", err)
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}
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for _, a := range addrs {
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if ipNet, ok := a.(*net.IPNet); ok && !ipNet.IP.IsLoopback() {
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if isIpV4 {
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if ipNet.IP.To4() != nil {
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return ipNet.IP.String()
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}
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} else {
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if ipNet.IP.To16() != nil {
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return ipNet.IP.String()
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}
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}
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}
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}
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}
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return ""
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}
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func JoinHostPort(host string, port int) string {
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portStr := strconv.Itoa(port)
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if strings.HasPrefix(host, "[") && strings.HasSuffix(host, "]") {
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return host + ":" + portStr
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}
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return net.JoinHostPort(host, portStr)
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}
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