net: fix setsockopt for openbsd

s/TCP_KEEPALIVE/SO_KEEPALIVE/ to unbreak build on OpenBSD.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/11345044

diff --git a/src/pkg/net/tcpsockopt_openbsd.go b/src/pkg/net/tcpsockopt_openbsd.go
index 25a826f18b7d93b58bd7505c46fe0bbc76a21cb6..306f4e050d278f9bddebed1165d859cb7f3d25ff 100644 (file)
--- a/src/pkg/net/tcpsockopt_openbsd.go
+++ b/src/pkg/net/tcpsockopt_openbsd.go
@@ -23,5 +23,5 @@ func setKeepAlivePeriod(fd *netFD, d time.Duration) error {
        d += (time.Second - time.Nanosecond)
        secs := int(d.Seconds())
 
-       return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(fd.sysfd, syscall.IPPROTO_TCP, syscall.TCP_KEEPALIVE, secs))
+       return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(fd.sysfd, syscall.IPPROTO_TCP, syscall.SO_KEEPALIVE, secs))
 }