src: restore stdio on program exit

Record the state of the stdio file descriptors on start-up and restore
them to that state on exit.  This should prevent issues where node.js
sometimes leaves stdio in raw or non-blocking mode.

This is a reworked version of commit c2c9c0c3d3 from May 2018 that was
reverted in commit 14dc17df38 from June 2018. The revert was a little
light on details but I infer that the problem was caused by a missing
call to `uv_tty_reset_mode()`.

Apropos the NOLINT comments: cpplint doesn't understand do/while
statements, it thinks they're while statements without a body.

Fixes: https://github.com/nodejs/node/issues/14752
Fixes: https://github.com/nodejs/node/issues/21020
Original-PR-URL: https://github.com/nodejs/node/pull/20592

PR-URL: https://github.com/nodejs/node/pull/24260
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Refael Ackermann (רפאל פלחי) <refack@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/node_errors.cc b/src/node_errors.cc
index baf08b30458..50469b09a8a 100644
--- a/src/node_errors.cc
+++ b/src/node_errors.cc
@@ -230,7 +230,7 @@ void AppendExceptionLine(Environment* env,
     Mutex::ScopedLock lock(per_process::tty_mutex);
     env->set_printed_error(true);
 
-    uv_tty_reset_mode();
+    ResetStdio();
     PrintErrorString("\n%s", source.c_str());
     return;
   }