| // Copyright 2015 The Vanadium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| // ExecVersionVariable is the name of the environment variable used by the exec |
| // package to communicate the protocol version between the parent and child. It |
| // takes care to clear this variable from the child process' environment as soon |
| // as it can, however, there may still be some situations where an application |
| // may need to test for its presence or ensure that it doesn't appear in a set |
| // of environment variables; exposing the name of this variable is intended to |
| // support such situations. |
| const ExecVersionVariable = "V23_EXEC_VERSION" |
