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server.go
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/
server.go
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package rcom
import (
"io"
"os"
"os/signal"
"sync"
"syscall"
)
type reader struct {
upstream io.Reader
}
func (r reader) Read(p []byte) (n int, err error) {
n, err = r.upstream.Read(p)
if err == nil {
Logger.Printf("Read %d bytes: %x", n, p[0:n])
}
return n, err
}
func Server(linkname string) error {
p, err := newPort(linkname)
if err != nil {
return err
}
var wg sync.WaitGroup
wg.Add(1)
go func() {
_, err := io.Copy(p, os.Stdin)
if err != nil {
Logger.Printf("Failed to copy from Stdin: %v", err)
}
wg.Done()
}()
wg.Add(1)
go func() {
_, err = io.Copy(os.Stdout, p)
if err != nil {
Logger.Printf("Failed to copy to Stdout: %v", err)
}
wg.Done()
}()
ch := make(chan os.Signal, 2)
signal.Notify(ch, os.Interrupt, syscall.SIGTERM)
closed := false
go func() {
<-ch
p.CloseTTY()
closed = true
}()
wg.Wait()
if !closed {
p.CloseTTY()
}
return nil
}