status-go/vendor/github.com/marten-seemann/tcp/sys_linux_386.go

45 lines
1.1 KiB
Go

// Copyright 2014 Mikio Hara. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package tcp
import (
"syscall"
"unsafe"
)
const (
sysSIOCINQ = 0x541b
sysSIOCOUTQ = 0x5411
)
func ioctl(s uintptr, ioc int, b []byte) error {
if _, _, errno := syscall.Syscall(syscall.SYS_IOCTL, s, uintptr(ioc), uintptr(unsafe.Pointer(&b[0]))); errno != 0 {
return error(errno)
}
return nil
}
const (
sysSETSOCKOPT = 0xe
sysGETSOCKOPT = 0xf
)
func socketcall(call, a0, a1, a2, a3, a4, a5 uintptr) (uintptr, syscall.Errno)
func setsockopt(s uintptr, level, name int, b []byte) error {
if _, errno := socketcall(sysSETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(len(b)), 0); errno != 0 {
return error(errno)
}
return nil
}
func getsockopt(s uintptr, level, name int, b []byte) (int, error) {
l := uint32(len(b))
if _, errno := socketcall(sysGETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(unsafe.Pointer(&l)), 0); errno != 0 {
return int(l), error(errno)
}
return int(l), nil
}