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// Copyright 2020 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package host
import (
"syscall"
"unsafe"
"gvisor.dev/gvisor/pkg/abi/linux"
)
func ioctlGetTermios(fd int) (*linux.Termios, error) {
var t linux.Termios
_, _, errno := syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), linux.TCGETS, uintptr(unsafe.Pointer(&t)))
if errno != 0 {
return nil, errno
}
return &t, nil
}
func ioctlSetTermios(fd int, req uint64, t *linux.Termios) error {
_, _, errno := syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), uintptr(req), uintptr(unsafe.Pointer(t)))
if errno != 0 {
return errno
}
return nil
}
func ioctlGetWinsize(fd int) (*linux.Winsize, error) {
var w linux.Winsize
_, _, errno := syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), linux.TIOCGWINSZ, uintptr(unsafe.Pointer(&w)))
if errno != 0 {
return nil, errno
}
return &w, nil
}
func ioctlSetWinsize(fd int, w *linux.Winsize) error {
_, _, errno := syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), linux.TIOCSWINSZ, uintptr(unsafe.Pointer(w)))
if errno != 0 {
return errno
}
return nil
}
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