1 files changed, 0 insertions, 78 deletions
diff --git a/src/pkg/net/sock_cloexec.go b/src/pkg/net/sock_cloexec.go
deleted file mode 100644
index dec81855b..000000000
--- a/src/pkg/net/sock_cloexec.go
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright 2013 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.
-
-// This file implements sysSocket and accept for platforms that
-// provide a fast path for setting SetNonblock and CloseOnExec.
-
-// +build freebsd linux
-
-package net
-
-import "syscall"
-
-// Wrapper around the socket system call that marks the returned file
-// descriptor as nonblocking and close-on-exec.
-func sysSocket(family, sotype, proto int) (int, error) {
-	s, err := syscall.Socket(family, sotype|syscall.SOCK_NONBLOCK|syscall.SOCK_CLOEXEC, proto)
-	// On Linux the SOCK_NONBLOCK and SOCK_CLOEXEC flags were
-	// introduced in 2.6.27 kernel and on FreeBSD both flags were
-	// introduced in 10 kernel. If we get an EINVAL error on Linux
-	// or EPROTONOSUPPORT error on FreeBSD, fall back to using
-	// socket without them.
-	if err == nil || (err != syscall.EPROTONOSUPPORT && err != syscall.EINVAL) {
-		return s, err
-	}
-
-	// See ../syscall/exec_unix.go for description of ForkLock.
-	syscall.ForkLock.RLock()
-	s, err = syscall.Socket(family, sotype, proto)
-	if err == nil {
-		syscall.CloseOnExec(s)
-	}
-	syscall.ForkLock.RUnlock()
-	if err != nil {
-		return -1, err
-	}
-	if err = syscall.SetNonblock(s, true); err != nil {
-		syscall.Close(s)
-		return -1, err
-	}
-	return s, nil
-}
-
-// Wrapper around the accept system call that marks the returned file
-// descriptor as nonblocking and close-on-exec.
-func accept(s int) (int, syscall.Sockaddr, error) {
-	ns, sa, err := syscall.Accept4(s, syscall.SOCK_NONBLOCK|syscall.SOCK_CLOEXEC)
-	// On Linux the accept4 system call was introduced in 2.6.28
-	// kernel and on FreeBSD it was introduced in 10 kernel. If we
-	// get an ENOSYS error on both Linux and FreeBSD, or EINVAL
-	// error on Linux, fall back to using accept.
-	switch err {
-	default: // nil and errors other than the ones listed
-		return ns, sa, err
-	case syscall.ENOSYS: // syscall missing
-	case syscall.EINVAL: // some Linux use this instead of ENOSYS
-	case syscall.EACCES: // some Linux use this instead of ENOSYS
-	case syscall.EFAULT: // some Linux use this instead of ENOSYS
-	}
-
-	// See ../syscall/exec_unix.go for description of ForkLock.
-	// It is probably okay to hold the lock across syscall.Accept
-	// because we have put fd.sysfd into non-blocking mode.
-	// However, a call to the File method will put it back into
-	// blocking mode. We can't take that risk, so no use of ForkLock here.
-	ns, sa, err = syscall.Accept(s)
-	if err == nil {
-		syscall.CloseOnExec(ns)
-	}
-	if err != nil {
-		return -1, nil, err
-	}
-	if err = syscall.SetNonblock(ns, true); err != nil {
-		syscall.Close(ns)
-		return -1, nil, err
-	}
-	return ns, sa, nil
-}