/*
ucspi/cmd/tlsc -- UCSPI TLS client
Copyright (C) 2021 Sergey Matveev <stargrave@stargrave.org>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 3 of the License.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

package main

import (
	"flag"
	"fmt"
	"io"
	"log"
	"os"
)

func main() {
	flag.Usage = func() {
		fmt.Fprintln(os.Stderr, "Usage: UCSPIserver [address] UCSPIclient [address] ucspi-proxy")
	}
	flag.Parse()
	log.SetFlags(log.Lshortfile)

	r := os.NewFile(6, "R")
	w := os.NewFile(7, "W")
	if r == nil {
		log.Fatalln("no 6 file descriptor")
	}
	if w == nil {
		log.Fatalln("no 7 file descriptor")
	}
	copiers := make(chan struct{})
	var err error
	go func() {
		_, err = io.Copy(w, os.Stdin)
		w.Close()
		close(copiers)
	}()
	go func() {
		io.Copy(os.Stdout, r)
	}()
	<-copiers
	if err != nil {
		log.Fatalln(err)
	}
}