1 // NNCP -- Node to Node copy, utilities for store-and-forward data exchange
2 // Copyright (C) 2016-2024 Sergey Matveev <stargrave@stargrave.org>
4 // This program is free software: you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation, version 3 of the License.
8 // This program is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 // GNU General Public License for more details.
13 // You should have received a copy of the GNU General Public License
14 // along with this program. If not, see <http://www.gnu.org/licenses/>.
24 const UCSPITCPClient = "UCSPI-TCP-CLIENT"
26 type UCSPIConn struct {
31 func (c UCSPIConn) Read(p []byte) (n int, err error) {
35 func (c UCSPIConn) Write(p []byte) (n int, err error) {
39 func (c UCSPIConn) SetReadDeadline(t time.Time) error {
40 return c.R.SetReadDeadline(t)
43 func (c UCSPIConn) SetWriteDeadline(t time.Time) error {
44 return c.W.SetWriteDeadline(t)
47 func (c UCSPIConn) Close() error {
48 if err := c.R.Close(); err != nil {
55 func UCSPITCPRemoteAddr() (addr string) {
56 if proto := os.Getenv("PROTO"); proto == "TCP" {
57 port := os.Getenv("TCPREMOTEPORT")
58 if host := os.Getenv("TCPREMOTEHOST"); host == "" {
59 addr = fmt.Sprintf("[%s]:%s", os.Getenv("TCPREMOTEIP"), port)
61 addr = fmt.Sprintf("%s:%s", host, port)