diff options
Diffstat (limited to 'vendor/github.com/kr/pty/pty_freebsd.go')
-rw-r--r-- | vendor/github.com/kr/pty/pty_freebsd.go | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/vendor/github.com/kr/pty/pty_freebsd.go b/vendor/github.com/kr/pty/pty_freebsd.go deleted file mode 100644 index b341babd0..000000000 --- a/vendor/github.com/kr/pty/pty_freebsd.go +++ /dev/null @@ -1,73 +0,0 @@ -package pty - -import ( - "errors" - "os" - "syscall" - "unsafe" -) - -func posix_openpt(oflag int) (fd int, err error) { - r0, _, e1 := syscall.Syscall(syscall.SYS_POSIX_OPENPT, uintptr(oflag), 0, 0) - fd = int(r0) - if e1 != 0 { - err = e1 - } - return -} - -func open() (pty, tty *os.File, err error) { - fd, err := posix_openpt(syscall.O_RDWR | syscall.O_CLOEXEC) - if err != nil { - return nil, nil, err - } - - p := os.NewFile(uintptr(fd), "/dev/pts") - sname, err := ptsname(p) - if err != nil { - return nil, nil, err - } - - t, err := os.OpenFile("/dev/"+sname, os.O_RDWR, 0) - if err != nil { - return nil, nil, err - } - return p, t, nil -} - -func isptmaster(fd uintptr) (bool, error) { - err := ioctl(fd, syscall.TIOCPTMASTER, 0) - return err == nil, err -} - -var ( - emptyFiodgnameArg fiodgnameArg - ioctl_FIODGNAME = _IOW('f', 120, unsafe.Sizeof(emptyFiodgnameArg)) -) - -func ptsname(f *os.File) (string, error) { - master, err := isptmaster(f.Fd()) - if err != nil { - return "", err - } - if !master { - return "", syscall.EINVAL - } - - const n = _C_SPECNAMELEN + 1 - var ( - buf = make([]byte, n) - arg = fiodgnameArg{Len: n, Buf: (*byte)(unsafe.Pointer(&buf[0]))} - ) - err = ioctl(f.Fd(), ioctl_FIODGNAME, uintptr(unsafe.Pointer(&arg))) - if err != nil { - return "", err - } - - for i, c := range buf { - if c == 0 { - return string(buf[:i]), nil - } - } - return "", errors.New("FIODGNAME string not NUL-terminated") -} |