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

35 lines
1.0 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.
// +build darwin dragonfly freebsd linux,!s390x,!386 netbsd openbsd
package tcp
import (
"syscall"
"unsafe"
)
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
}
func setsockopt(s uintptr, level, name int, b []byte) error {
if _, _, errno := syscall.Syscall6(syscall.SYS_SETSOCKOPT, 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 := syscall.Syscall6(syscall.SYS_GETSOCKOPT, 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
}