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// Copyright 2014 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 ipv4
import (
"syscall"
"unsafe"
)
const (
sysGETSOCKOPT = 0xf
sysSETSOCKOPT = 0xe
)
func socketcall(call int, a0, a1, a2, a3, a4, a5 uintptr) (int, syscall.Errno)
func getsockopt(s uintptr, level, name int, v unsafe.Pointer, l *uint32) error {
if _, errno := socketcall(sysGETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(v), uintptr(unsafe.Pointer(l)), 0); errno != 0 {
return error(errno)
}
return nil
}
func setsockopt(s uintptr, level, name int, v unsafe.Pointer, l uint32) error {
if _, errno := socketcall(sysSETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(v), uintptr(l), 0); errno != 0 {
return error(errno)
}
return nil
}
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