vis

commit 2b18c8ee30a26d342d539bc85b882d23fbce9900
parent 4d10e732821ddb29beee10edf1db6483d2118fa6
Author: Marc André Tanner <mat@brain-dump.org>
Date:   Wed, 12 Aug 2015 19:14:43 +0200

ui: query terminal size on stderr

We always draw the editor user interface to stderr in order to
allow usage as a filter e.g.

 $ echo Hello | vis - | grep World > out

hence stdin might be redirected and we should always read the
terminal size from stderr.

Closes #66

Diffstat:
M
ui-curses.c
 | 
3
++-

1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/ui-curses.c b/ui-curses.c
@@ -1,3 +1,4 @@
+#include <unistd.h>
 #include <stdlib.h>
 #include <string.h>
 #include <signal.h>
@@ -300,7 +301,7 @@ static void ui_resize(Ui *ui) {
 	struct winsize ws;
 	int width, height;
 
-	if (ioctl(0, TIOCGWINSZ, &ws) == -1) {
+	if (ioctl(STDERR_FILENO, TIOCGWINSZ, &ws) == -1) {
 		getmaxyx(stdscr, height, width);
 	} else {
 		width = ws.ws_col;