# HG changeset patch
# User John W. Eaton <jwe@octave.org>
# Date 1606936935 18000
# Node ID 118b38c17805b08219e21d115a6a6379e3b7f127
# Parent  77ba9dfe5b29952681590a48c613a4b65aa25be9
also restore stdin and stdout in QUnixTerminalImpl destructor

* QUnixTerminalImpl.h, QUnixTerminalImpl.cpp
(QUnixTerminalImpl::fdstdin, QUnixTerminalImpl::fdstdout):
New data members.
(QUnixTerminalImpl::connectToPty): Save stdin and stdout file
numbers.
(QUnixTerminalImpl::~QUnixTerminalImpl): Restore stdin and stdout.

diff -r 77ba9dfe5b29 -r 118b38c17805 libgui/qterminal/libqterminal/unix/QUnixTerminalImpl.cpp
--- a/libgui/qterminal/libqterminal/unix/QUnixTerminalImpl.cpp	Wed Dec 02 15:00:45 2020 -0500
+++ b/libgui/qterminal/libqterminal/unix/QUnixTerminalImpl.cpp	Wed Dec 02 14:22:15 2020 -0500
@@ -107,8 +107,12 @@
 
 void QUnixTerminalImpl::connectToPty()
 {
-    // Store the file descriptor associated with the STDERR stream onto
-    // another temporary file descriptor for reconnect in the destructor.
+    // Store the file descriptor associated with the STDIN, STDOUT, and
+    // STDERR streams onto another temporary file descriptor for
+    // reconnect in the destructor.
+
+    fdstdin = dup (STDIN_FILENO);
+    fdstdout = dup (STDOUT_FILENO);
     fdstderr = dup (STDERR_FILENO);
 
     int fds = m_kpty->slaveFd();
@@ -136,7 +140,11 @@
     delete m_kpty;
     delete m_terminalView;
 
-    // Restore stderr so that any errors at exit might appear somewhere.
+    // Restore STDIN, STDOUT, and STDERR so that I/O at exit will work
+    // as expected.
+
+    dup2 (fdstdin, STDIN_FILENO);
+    dup2 (fdstdout, STDOUT_FILENO);
     dup2 (fdstderr, STDERR_FILENO);
 
     emit destroyed();
diff -r 77ba9dfe5b29 -r 118b38c17805 libgui/qterminal/libqterminal/unix/QUnixTerminalImpl.h
--- a/libgui/qterminal/libqterminal/unix/QUnixTerminalImpl.h	Wed Dec 02 15:00:45 2020 -0500
+++ b/libgui/qterminal/libqterminal/unix/QUnixTerminalImpl.h	Wed Dec 02 14:22:15 2020 -0500
@@ -31,6 +31,8 @@
 {
     Q_OBJECT
 
+    int fdstdin;
+    int fdstdout;
     int fdstderr;
 
 public: