From 6ab2d284e54384cc6e7dc13eed1eddd12bd77879 Mon Sep 17 00:00:00 2001
From: Takashi Yano via Cygwin-patches <cygwin-patches@cygwin.com>
Date: Fri, 29 Jan 2021 12:45:44 +0900
Subject: [PATCH] Cygwin: console: Align the behaviour against signal with pty.

- Currently, read() returns -1 with EINTR if the process is suspended
  by Ctrl-Z and resumed by fg command, while pty continues to read.
  For example, xxd command stops with error "Interrupted system call"
  after Ctrl-Z and fg. This patch aligns the behaviour with pty (and
  Linux).
---
 winsup/cygwin/fhandler_console.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/winsup/cygwin/fhandler_console.cc b/winsup/cygwin/fhandler_console.cc
index 0b404411e..3c0783575 100644
--- a/winsup/cygwin/fhandler_console.cc
+++ b/winsup/cygwin/fhandler_console.cc
@@ -587,7 +587,8 @@ wait_retry:
 	  break;
 	case input_signalled: /* signalled */
 	  release_input_mutex ();
-	  goto sig_exit;
+	  /* The signal will be handled by cygwait() above. */
+	  continue;
 	case input_winch:
 	  release_input_mutex ();
 	  continue;