cri-o/vendor/github.com/buger/goterm/terminal_sysioctl.go

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// +build !windows,!plan9,!solaris
package goterm
import (
"fmt"
"os"
"runtime"
"syscall"
"unsafe"
)
func getWinsize() (*winsize, error) {
ws := new(winsize)
var _TIOCGWINSZ int64
switch runtime.GOOS {
case "linux":
_TIOCGWINSZ = 0x5413
case "darwin":
_TIOCGWINSZ = 1074295912
}
r1, _, errno := syscall.Syscall(syscall.SYS_IOCTL,
uintptr(syscall.Stdin),
uintptr(_TIOCGWINSZ),
uintptr(unsafe.Pointer(ws)),
)
if int(r1) == -1 {
fmt.Println("Error:", os.NewSyscallError("GetWinsize", errno))
return nil, os.NewSyscallError("GetWinsize", errno)
}
return ws, nil
}