2 NNCP -- Node to Node copy, utilities for store-and-forward data exchange
3 Copyright (C) 2016-2023 Sergey Matveev <stargrave@stargrave.org>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, version 3 of the License.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>.
26 const UCSPITCPClient = "UCSPI-TCP-CLIENT"
28 type UCSPIConn struct {
33 func (c UCSPIConn) Read(p []byte) (n int, err error) {
37 func (c UCSPIConn) Write(p []byte) (n int, err error) {
41 func (c UCSPIConn) SetReadDeadline(t time.Time) error {
42 return c.R.SetReadDeadline(t)
45 func (c UCSPIConn) SetWriteDeadline(t time.Time) error {
46 return c.W.SetWriteDeadline(t)
49 func (c UCSPIConn) Close() error {
50 if err := c.R.Close(); err != nil {
57 func UCSPITCPRemoteAddr() (addr string) {
58 if proto := os.Getenv("PROTO"); proto == "TCP" {
59 port := os.Getenv("TCPREMOTEPORT")
60 if host := os.Getenv("TCPREMOTEHOST"); host == "" {
61 addr = fmt.Sprintf("[%s]:%s", os.Getenv("TCPREMOTEIP"), port)
63 addr = fmt.Sprintf("%s:%s", host, port)