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server.go
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server.go
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package main
import (
"crypto/tls"
"flag"
"fmt"
"github.com/Xminry/smtls"
"io"
"log"
"net"
)
func main() {
port := flag.String("port", "8360", "listening port")
certFile := flag.String("cert", "testdata/gm-example-cert.pem", "certificate PEM file")
keyFile := flag.String("key", "testdata/gm-example-key.pem", "key PEM file")
flag.Parse()
cert9 := *certFile
key9 := *keyFile
fmt.Println(cert9, key9)
cert, err := smtls.LoadX509KeyPair(*certFile, *keyFile)
if err != nil {
log.Fatal(err)
}
config := &smtls.Config{
Certificates: []tls.Certificate{cert},
CipherSuites: []uint16{smtls.TLS_SM4_GCM_SM3},
MinVersion: smtls.VersionTLS13,
CurvePreferences: []smtls.CurveID{smtls.CurveSM2},
}
log.Printf("listening on port %s\n", *port)
l, err := smtls.Listen("tcp", ":"+*port, config, nil)
if err != nil {
log.Fatal(err)
}
defer l.Close()
for {
conn, err := l.Accept()
if err != nil {
log.Fatal(err)
}
log.Printf("accepted connection from %s\n", conn.RemoteAddr())
go func(c net.Conn) {
_, err := io.Copy(c, c)
if err != nil {
log.Println(err)
}
err = c.Close()
if err != nil {
log.Println(err)
}
log.Printf("closing connection from %s\n", conn.RemoteAddr())
}(conn)
}
}