if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

var libc_getsockopt_trampoline_addr uintptr

//go:cgo_import_dynamic libc_getsockopt getsockopt "libc.so"

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) {

	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

var libc_getsockopt_trampoline_addr uintptr

//go:cgo_import_dynamic libc_getsockopt getsockopt "libc.so"

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) {

	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

var libc_getsockopt_trampoline_addr uintptr

//go:cgo_import_dynamic libc_getsockopt getsockopt "libc.so"

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) {

	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

var libc_getsockopt_trampoline_addr uintptr

//go:cgo_import_dynamic libc_getsockopt getsockopt "libc.so"

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) {

	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

var libc_getsockopt_trampoline_addr uintptr

//go:cgo_import_dynamic libc_getsockopt getsockopt "libc.so"

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) {

	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

var libc_getsockopt_trampoline_addr uintptr

//go:cgo_import_dynamic libc_getsockopt getsockopt "libc.so"

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) {

	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

var libc_getsockopt_trampoline_addr uintptr

//go:cgo_import_dynamic libc_getsockopt getsockopt "libc.so"

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) {

	procgetsockname                                          = modws2_32.NewProc("getsockname")
	procgetsockopt                                           = modws2_32.NewProc("getsockopt")
	proclisten                                               = modws2_32.NewProc("listen")
	procntohs                                                = modws2_32.NewProc("ntohs")

	if int64(r0) == -1 {
		err = errnoErr2(e1, e2)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) {
	runtime.EnterSyscall()

	runtime.KeepAlive(fd)
	return wrapSyscallError("setsockopt", err)
}

func setKeepAliveCount(fd *netFD, n int) error {
	if n == 0 {
		n = defaultTCPKeepAliveCount
	} else if n < 0 {
		return nil
	}

	err := fd.pfd.SetsockoptInt(syscall.IPPROTO_TCP, sysTCP_KEEPCNT, n)
	runtime.KeepAlive(fd)
	return wrapSyscallError("setsockopt", err)