Initial QSfera import

Server/tests/ocwrapper/vendor/github.com/creack/pty/ioctl.go

@@ -0,0 +1,28 @@
+//go:build !windows && go1.12
+// +build !windows,go1.12
+
+package pty
+
+import "os"
+
+func ioctl(f *os.File, cmd, ptr uintptr) error {
+	return ioctlInner(f.Fd(), cmd, ptr) // Fall back to blocking io.
+}
+
+// NOTE: Unused. Keeping for reference.
+func ioctlNonblock(f *os.File, cmd, ptr uintptr) error {
+	sc, e := f.SyscallConn()
+	if e != nil {
+		return ioctlInner(f.Fd(), cmd, ptr) // Fall back to blocking io (old behavior).
+	}
+
+	ch := make(chan error, 1)
+	defer close(ch)
+
+	e = sc.Control(func(fd uintptr) { ch <- ioctlInner(fd, cmd, ptr) })
+	if e != nil {
+		return e
+	}
+	e = <-ch
+	return e
+}