packer-cn/vendor/github.com/moul/gotty-client/arch.go

33 lines
555 B
Go

// +build !windows
package gottyclient
import (
"encoding/json"
"fmt"
"golang.org/x/sys/unix"
"os"
"os/signal"
"syscall"
)
func notifySignalSIGWINCH(c chan<- os.Signal) {
signal.Notify(c, syscall.SIGWINCH)
}
func resetSignalSIGWINCH() {
signal.Reset(syscall.SIGWINCH)
}
func syscallTIOCGWINSZ() ([]byte, error) {
ws, err := unix.IoctlGetWinsize(0, 0)
if err != nil {
return nil, fmt.Errorf("ioctl error: %v", err)
}
b, err := json.Marshal(ws)
if err != nil {
return nil, fmt.Errorf("json.Marshal error: %v", err)
}
return b, err
}