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//go:build !windows
package main
import (
"fmt"
"net"
"os"
"github.com/containers/buildah/internal/pty"
"github.com/sirupsen/logrus"
"golang.org/x/sys/unix"
)
func sendConsoleDescriptor(consoleSocket string) (*os.File, error) {
closePty := true
control, pty, err := pty.GetPtyDescriptors()
if err != nil {
return nil, fmt.Errorf("allocating pseudo-terminal: %w", err)
}
defer unix.Close(control)
defer func() {
if closePty {
if err := unix.Close(pty); err != nil {
logrus.Errorf("closing pty descriptor %d: %v", pty, err)
}
}
}()
socketReceiver, err := net.DialUnix("unix", nil, &net.UnixAddr{Name: consoleSocket, Net: "unix"})
if err != nil {
return nil, fmt.Errorf("allocating pseudo-terminal: %w", err)
}
defer socketReceiver.Close()
rights := unix.UnixRights(control)
_, _, err = socketReceiver.WriteMsgUnix(nil, rights, nil)
if err != nil {
return nil, fmt.Errorf("sending terminal control fd to parent process: %w", err)
}
closePty = false
return os.NewFile(uintptr(pty), "controlling terminal"), nil
}
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