From 4e305eca26924a14d05758fb381edca1c5a5f55b Mon Sep 17 00:00:00 2001
From: Junegunn Choi <junegunn.c@gmail.com>
Date: Tue, 14 Feb 2023 23:21:34 +0900
Subject: [PATCH] become: Set stdin to /dev/tty

---
 src/terminal.go          | 1 +
 src/util/util_unix.go    | 6 ++++++
 src/util/util_windows.go | 4 ++++
 3 files changed, 11 insertions(+)

diff --git a/src/terminal.go b/src/terminal.go
index 18f8353..8ab5434 100644
--- a/src/terminal.go
+++ b/src/terminal.go
@@ -2876,6 +2876,7 @@ func (t *Terminal) Loop() {
 						if t.history != nil {
 							t.history.append(string(t.input))
 						}
+						util.SetStdin(tui.TtyIn())
 						syscall.Exec(shellPath, []string{shell, "-c", command}, os.Environ())
 					}
 				}
diff --git a/src/util/util_unix.go b/src/util/util_unix.go
index a76f770..2991fd2 100644
--- a/src/util/util_unix.go
+++ b/src/util/util_unix.go
@@ -6,6 +6,8 @@ import (
 	"os"
 	"os/exec"
 	"syscall"
+
+	"golang.org/x/sys/unix"
 )
 
 // ExecCommand executes the given command with $SHELL
@@ -45,3 +47,7 @@ func SetNonblock(file *os.File, nonblock bool) {
 func Read(fd int, b []byte) (int, error) {
 	return syscall.Read(int(fd), b)
 }
+
+func SetStdin(file *os.File) {
+	unix.Dup2(int(file.Fd()), 0)
+}
diff --git a/src/util/util_windows.go b/src/util/util_windows.go
index b3f4e01..aa69b99 100644
--- a/src/util/util_windows.go
+++ b/src/util/util_windows.go
@@ -81,3 +81,7 @@ func SetNonblock(file *os.File, nonblock bool) {
 func Read(fd int, b []byte) (int, error) {
 	return syscall.Read(syscall.Handle(fd), b)
 }
+
+func SetStdin(file *os.File) {
+	// No-op
+}