VOL-381 add unum container to support ONOS cluster formation under swarm
Change-Id: Ic260edda19bb199ed040f05164ab605f28c919d0
diff --git a/unum/vendor/github.com/mattn/go-isatty/isatty_linux.go b/unum/vendor/github.com/mattn/go-isatty/isatty_linux.go
new file mode 100644
index 0000000..9d24bac
--- /dev/null
+++ b/unum/vendor/github.com/mattn/go-isatty/isatty_linux.go
@@ -0,0 +1,18 @@
+// +build linux
+// +build !appengine
+
+package isatty
+
+import (
+ "syscall"
+ "unsafe"
+)
+
+const ioctlReadTermios = syscall.TCGETS
+
+// IsTerminal return true if the file descriptor is terminal.
+func IsTerminal(fd uintptr) bool {
+ var termios syscall.Termios
+ _, _, err := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
+ return err == 0
+}