Add configuration to modify signal sent to child process when close it

app/app.go

@@ -64,6 +64,7 @@ type Options struct {
 	ReconnectTime       int                    `hcl:"reconnect_time"`
 	Once                bool                   `hcl:"once"`
 	PermitArguments     bool                   `hcl:"permit_arguments"`
+	CloseSignal         int                    `hcl:"close_signal"`
 	Preferences         HtermPrefernces        `hcl:"preferences"`
 	RawPreferences      map[string]interface{} `hcl:"preferences"`
 }
@@ -88,6 +89,7 @@ var DefaultOptions = Options{
 	EnableReconnect:     false,
 	ReconnectTime:       10,
 	Once:                false,
+	CloseSignal:         1, // syscall.SIGHUP
 	Preferences:         HtermPrefernces{},
 }
 

app/client_context.go

@@ -75,7 +75,7 @@ func (context *clientContext) goHandleClient() {
 
 		// Even if the PTY has been closed,
 		// Read(0 in processSend() keeps blocking and the process doen't exit
-		context.command.Process.Signal(syscall.SIGHUP)
+		context.command.Process.Signal(syscall.Signal(context.app.options.CloseSignal))
 
 		context.command.Wait()
 		context.connection.Close()

main.go

@@ -35,6 +35,7 @@ func main() {
 		flag{"reconnect-time", "", "Time to reconnect"},
 		flag{"once", "", "Accept only one client and exit on disconnection"},
 		flag{"permit-arguments", "", "Permit clients to send command line arguments in URL (e.g. http://example.com:8080/?arg=AAA&arg=BBB)"},
+		flag{"close-signal", "", "Signal sent to the command process when gotty close it (default: SIGHUP)"},
 	}
 
 	mappingHint := map[string]string{