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Golang third library

产品：
静态站点：gohugoio/hugo   Public
文件同步：syncthing/syncthing Public 
反向代理：fatedier/frp 
在线终端：yudai/gotty 
本地界面：fyne-io/fyne 
在线文件：filebrowser/filebrowser
本地代理：v2ray/v2ray-core
发送文件：schollz/croc
坚守进程：ochinchina/supervisord

项目：
miekg/dns
jeessy2/ddns-go
fsnotify/fsnotify
drakkan/sftpgo

研发：
GoAdminGroup/go-admin
go-admin-team/go-admin
flipped-aurora/gin-vue-admin
qax-os/excelize
grpc/grpc-go
ethereum/go-ethereum    Public
go-kit/kit
derailed/k9s

Golang functions

//export GetNetIP
func GetNetIP() string {
    if ifaces, err := net.Interfaces(); err == nil {
        for _, iface := range ifaces {
            if iface.Flags&net.FlagUp == 0 || iface.Flags&net.FlagLoopback != 0 {
                continue // interface down // loopback interface
            }
            if addrs, err := iface.Addrs(); err == nil {
                for _, addr := range addrs {
                    switch v := addr.(type) {
                    case *net.IPAddr:
                        if v.IP.IsGlobalUnicast() && nil != v.IP.To4() {
                            return v.IP.String() // only pick first net card
                        }
                    case *net.IPNet:
                        if v.IP.IsGlobalUnicast() && nil != v.IP.To4() {
                            return v.IP.String() // only pick first net card
                        }
                    }
                } // end of for addrs
            }
        } // end of for iface
    } // end of net.Interfaces
    return net.IPv4zero.String()
}

//export GetMapIP
func GetMapIP() map[string]string {
    m := map[string]string{}
    if ifaces, err := net.Interfaces(); err == nil {
        for _, iface := range ifaces {
            if iface.Flags&net.FlagUp == 0 || iface.Flags&net.FlagLoopback != 0 {
                continue // interface down // loopback interface
            }
            if addrs, err := iface.Addrs(); err == nil {
                for _, addr := range addrs {
                    switch v := addr.(type) {
                    case *net.IPAddr:
                        if v.IP.IsGlobalUnicast() && nil != v.IP.To4() {
                            m[iface.Name] = v.IP.String() // only pick last net card
                        }
                    case *net.IPNet:
                        if v.IP.IsGlobalUnicast() && nil != v.IP.To4() {
                            m[iface.Name] = v.IP.String() // only pick last net card
                        }
                    }
                } // end of for addrs
            }
        } // end of for iface
    } // end of net.Interfaces
    return m
}