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// 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.
// We require Linux kernel version 2.6.32. The accept4 system call was
// added in version 2.6.28, so in general we can use accept4.
// Unfortunately, for ARM only, accept4 was added in version 2.6.36.
// Handle that case here, by using a copy of the Accept function that
// we used in Go 1.17.
//go:build linux && arm
package syscall
//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
func Accept(fd int) (nfd int, sa Sockaddr, err error) {
var rsa RawSockaddrAny
var len _Socklen = SizeofSockaddrAny
// Try accept4 first for Android and newer kernels.
nfd, err = accept4(fd, &rsa, &len, 0)
if err == ENOSYS {
nfd, err = accept(fd, &rsa, &len)
}
if err != nil {
return
}
sa, err = anyToSockaddr(&rsa)
if err != nil {
Close(nfd)
nfd = 0
}
return
}
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