// Returns the name of the terminal's tty device and an error if
// the terminal's fd is not a tty.
func (t *Terminal) Name() (string, os.Error) {
cs := C.ttyname(C.int(t.Fd()))
if cs == nil {
return "", os.NewError("Not a tty")
}
return C.GoString(cs), nil
}
// Gets the name of a terminal.
//
// char *ttyname(int fd);
func TTYname(fd int) (string, error) {
name, errno := C.ttyname(C.int(fd))
if errno != nil {
return "", errno
}
return C.GoString(name), nil
}
// Opens an available pseudo-terminal and returns Terminal controllers for the master and
// slave. Also returns an Error, if any.
func OpenPty(attr *Attributes, size *WindowSize) (*Terminal, *Terminal, os.Error) {
cattr := makeCAttributes(attr)
csize := makeCWindowSize(size)
// see Go sources @src/pkg/syscall/exec.go for ForkLock info
syscall.ForkLock.RLock()
result := C.goterm_openpty(&cattr, &csize)
if result.result < 0 {
syscall.ForkLock.RUnlock()
return nil, nil, os.NewError("Unable to open pty.")
}
syscall.CloseOnExec(int(result.master))
syscall.CloseOnExec(int(result.slave))
syscall.ForkLock.RUnlock()
master := &Terminal{os.NewFile(int(result.master), C.GoString(C.ttyname(result.master)))}
slave := &Terminal{os.NewFile(int(result.slave), C.GoString(C.ttyname(result.slave)))}
return master, slave, nil
}