1 files changed, 92 insertions, 0 deletions
diff --git a/src/net/tcpsock_plan9.go b/src/net/tcpsock_plan9.go
new file mode 100644
index 0000000..768d03b
--- /dev/null
+++ b/src/net/tcpsock_plan9.go
@@ -0,0 +1,92 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package net
+
+import (
+	"context"
+	"io"
+	"os"
+)
+
+func (c *TCPConn) readFrom(r io.Reader) (int64, error) {
+	return genericReadFrom(c, r)
+}
+
+func (sd *sysDialer) dialTCP(ctx context.Context, laddr, raddr *TCPAddr) (*TCPConn, error) {
+	if testHookDialTCP != nil {
+		return testHookDialTCP(ctx, sd.network, laddr, raddr)
+	}
+	return sd.doDialTCP(ctx, laddr, raddr)
+}
+
+func (sd *sysDialer) doDialTCP(ctx context.Context, laddr, raddr *TCPAddr) (*TCPConn, error) {
+	switch sd.network {
+	case "tcp4":
+		// Plan 9 doesn't complain about [::]:0->127.0.0.1, so it's up to us.
+		if laddr != nil && len(laddr.IP) != 0 && laddr.IP.To4() == nil {
+			return nil, &AddrError{Err: "non-IPv4 local address", Addr: laddr.String()}
+		}
+	case "tcp", "tcp6":
+	default:
+		return nil, UnknownNetworkError(sd.network)
+	}
+	if raddr == nil {
+		return nil, errMissingAddress
+	}
+	fd, err := dialPlan9(ctx, sd.network, laddr, raddr)
+	if err != nil {
+		return nil, err
+	}
+	return newTCPConn(fd), nil
+}
+
+func (ln *TCPListener) ok() bool { return ln != nil && ln.fd != nil && ln.fd.ctl != nil }
+
+func (ln *TCPListener) accept() (*TCPConn, error) {
+	fd, err := ln.fd.acceptPlan9()
+	if err != nil {
+		return nil, err
+	}
+	tc := newTCPConn(fd)
+	if ln.lc.KeepAlive >= 0 {
+		setKeepAlive(fd, true)
+		ka := ln.lc.KeepAlive
+		if ln.lc.KeepAlive == 0 {
+			ka = defaultTCPKeepAlive
+		}
+		setKeepAlivePeriod(fd, ka)
+	}
+	return tc, nil
+}
+
+func (ln *TCPListener) close() error {
+	if err := ln.fd.pfd.Close(); err != nil {
+		return err
+	}
+	if _, err := ln.fd.ctl.WriteString("hangup"); err != nil {
+		ln.fd.ctl.Close()
+		return err
+	}
+	if err := ln.fd.ctl.Close(); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (ln *TCPListener) file() (*os.File, error) {
+	f, err := ln.dup()
+	if err != nil {
+		return nil, err
+	}
+	return f, nil
+}
+
+func (sl *sysListener) listenTCP(ctx context.Context, laddr *TCPAddr) (*TCPListener, error) {
+	fd, err := listenPlan9(ctx, sl.network, laddr)
+	if err != nil {
+		return nil, err
+	}
+	return &TCPListener{fd: fd, lc: sl.ListenConfig}, nil
+}