175 lines
3.4 KiB
Go
175 lines
3.4 KiB
Go
package main
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import (
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"bufio"
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"flag"
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"fmt"
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"github.com/zimolab/charsetconv"
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"go.bug.st/serial"
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"io"
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"log"
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"net"
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"os"
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"strings"
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)
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var (
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serialPort serial.Port
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err error
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args []string
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)
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var (
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in io.Reader = os.Stdin
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out io.Writer = os.Stdout
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ins = []io.Reader{os.Stdin}
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outs = []io.Writer{os.Stdout}
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)
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func checkPortAvailability(name string) ([]string, error) {
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ports, err := serial.GetPortsList()
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if err != nil {
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log.Fatal(err)
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}
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if len(ports) == 0 {
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return nil, fmt.Errorf("无串口")
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}
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if name == "" {
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return ports, fmt.Errorf("串口未指定")
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}
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for _, port := range ports {
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if strings.Compare(port, name) == 0 {
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return ports, nil
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}
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}
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return ports, fmt.Errorf("串口 " + name + " 未在线")
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}
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func init() {
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log.SetFlags(log.Ldate | log.Ltime | log.Lshortfile | log.Lmsgprefix)
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for _, f := range flags {
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flagInit(&f)
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}
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flag.Func("h", "获取帮助", func(s string) error {
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ports, err := checkPortAvailability(s)
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if err != nil {
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fmt.Println(err)
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printUsage(ports)
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os.Exit(0)
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}
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return err
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})
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cmdinit()
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}
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func input(in io.Reader) {
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input := bufio.NewScanner(in)
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var ok = false
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for {
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input.Scan()
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ok = false
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args = strings.Split(input.Text(), " ")
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for _, cmd := range commands {
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if strings.Compare(strings.TrimSpace(args[0]), cmd.name) == 0 {
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cmd.function()
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ok = true
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}
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}
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if !ok {
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_, err := io.WriteString(serialPort, input.Text())
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if err != nil {
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log.Fatal(err)
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}
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_, err = io.WriteString(serialPort, config.endStr)
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if err != nil {
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log.Fatal(err)
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}
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}
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err = serialPort.Drain()
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if err != nil {
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log.Fatal(err)
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}
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}
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}
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func strout(out io.Writer, cs, str string) {
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err = charsetconv.EncodeWith(strings.NewReader(str), out, charsetconv.Charset(cs), false)
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if err != nil {
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log.Fatal(err)
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}
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}
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func output() {
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if strings.Compare(config.inputCode, "hex") == 0 {
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b := make([]byte, 16)
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r, _ := io.LimitReader(serialPort, int64(config.frameSize)).Read(b)
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if r != 0 {
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strout(out, config.outputCode, fmt.Sprintf("% X %q \n", b, b))
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}
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} else {
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err = charsetconv.ConvertWith(serialPort, charsetconv.Charset(config.inputCode), out, charsetconv.Charset(config.outputCode), false)
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}
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if err != nil {
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log.Fatal(err)
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}
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}
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func main() {
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flag.Parse()
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if config.portName == "" {
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getCliFlag()
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}
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ports, err := checkPortAvailability(config.portName)
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if err != nil {
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fmt.Println(err)
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printUsage(ports)
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os.Exit(0)
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}
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mode := &serial.Mode{
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BaudRate: config.baudRate,
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StopBits: serial.StopBits(config.stopBits),
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DataBits: config.dataBits,
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Parity: serial.Parity(config.parityBit),
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}
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serialPort, err = serial.Open(config.portName, mode)
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if err != nil {
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log.Fatal(err)
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}
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defer func(port serial.Port) {
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err := port.Close()
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if err != nil {
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log.Fatal(err)
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}
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}(serialPort)
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if FoeWardMode(config.forWard) != NOT {
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conn := setForWardClient()
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ins = append(ins, conn)
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outs = append(outs, conn)
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defer func(conn net.Conn) {
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err := conn.Close()
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if err != nil {
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log.Fatal(err)
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}
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}(conn)
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}
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if len(ins) != 0 {
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for _, reader := range ins {
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go input(reader)
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}
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}
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if config.enableLog {
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f, err := os.OpenFile(config.logFilePath, os.O_RDWR|os.O_APPEND|os.O_CREATE, 0666)
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if err != nil {
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log.Fatal(err)
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}
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outs = append(outs, f)
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}
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if len(outs) != 1 {
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out = io.MultiWriter(outs...)
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}
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for {
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output()
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}
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}
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