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net.go
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net.go
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/*
This file is part of secretstream.
secretstream 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, either version 3 of the License, or
(at your option) any later version.
secretstream 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 secretstream. If not, see <http://www.gnu.org/licenses/>.
*/
package secretstream
import (
"errors"
"net"
)
// ErrOnlyTCP is returned if a progrems tries to open a UDP socket through secretstream
var ErrOnlyTCP = errors.New("secretstream: only TCP is supported")
// Dialer is the same signature as net.Dial, there is no expoted interface for this
type Dialer func(net, addr string) (net.Conn, error)
// Listener can accept secret handshakes
type Listener struct {
l net.Listener
s *Server
}
// Addr returns the
func (l Listener) Addr() net.Addr {
return Addr{l.l.Addr(), l.s.keyPair.Public[:]}
}
// Close closes the underlying net.Listener
func (l Listener) Close() error {
return l.l.Close()
}
// Accept accepts a connection on the underlying net.Listener
// and expects to receive a handshake
func (l Listener) Accept() (net.Conn, error) {
c, err := l.l.Accept()
if err != nil {
return nil, err
}
return ServerOnce(c, l.s.keyPair, l.s.appKey)
}