From 1c9c52647fe2984472246eb2c12b3412fd5fafa4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc=20Andr=C3=A9=20Tanner?= <mat@brain-dump.org>
Date: Fri, 25 Nov 2016 16:41:53 +0100
Subject: [PATCH] vis-menu: also re-open /dev/tty as stderr

This means vis-menu will also work when stderr is used for other purposes.

This will be used by the vis editor:

 - stdin is used for the initial completion candidates
 - stdout is used to return the selected entry
 - stderr is used for error reporting
---
 vis-menu.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/vis-menu.c b/vis-menu.c
index a37e7dfc4..a5023e209 100644
--- a/vis-menu.c
+++ b/vis-menu.c
@@ -201,6 +201,7 @@ drawmenu(void) {
 
 	}
 	fprintf(stderr, "\033[%iG", (int)(promptw+textwn(text, cursor)-1));
+	fflush(stderr);
 }
 
 static char*
@@ -317,7 +318,8 @@ setup(void) {
 	struct winsize ws;
 
 	/* re-open stdin to read keyboard */
-	if (!freopen("/dev/tty", "r", stdin)) die("Can't reopen tty.");
+	if (!freopen("/dev/tty", "r", stdin)) die("Can't reopen tty as stdin.");
+	if (!freopen("/dev/tty", "w", stderr)) die("Can't reopen tty as stderr.");
 
 	/* ioctl() the tty to get size */
 	fd = open("/dev/tty", O_RDWR);