[git commit master 1/1] lineedit: mostly revert recent wrong logic in "ask terminal" code

[Denys Vlasenko]

commit: http://git.busybox.net/busybox/commit/?id=451add4f23c14459734e05104ea0bc5ed4de39ee
branch: http://git.busybox.net/busybox/commit/?id=refs/heads/master

Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
---
 libbb/lineedit.c |   21 +++++++++------------
 1 files changed, 9 insertions(+), 12 deletions(-)

diff --git a/libbb/lineedit.c b/libbb/lineedit.c
index a62ab6d..6df556f 100644
--- a/libbb/lineedit.c
+++ b/libbb/lineedit.c
@@ -149,7 +149,6 @@ struct lineedit_statics {
 	CHAR_T delbuf[DELBUFSIZ];  /* a place to store deleted characters */
 #endif
 #if ENABLE_FEATURE_EDITING_ASK_TERMINAL
-	smallint unknown_width;
 	smallint sent_ESC_br6n;
 #endif
 
@@ -1611,16 +1610,14 @@ static void ask_terminal(void)
 	 * poll([{fd=0, events=POLLIN}], 1, 4294967295) = 1 ([{fd=0, revents=POLLIN}])
 	 * read(0, "\n", 1)      = 1  <-- oh crap, user's input got in first
 	 */
-	if (S.unknown_width) { /* only if window size is not known */
-		struct pollfd pfd;
-
-		pfd.fd = STDIN_FILENO;
-		pfd.events = POLLIN;
-		if (safe_poll(&pfd, 1, 0) == 0) {
-			S.sent_ESC_br6n = 1;
-			fputs("\033" "[6n", stdout);
-			fflush_all(); /* make terminal see it ASAP! */
-		}
+	struct pollfd pfd;
+
+	pfd.fd = STDIN_FILENO;
+	pfd.events = POLLIN;
+	if (safe_poll(&pfd, 1, 0) == 0) {
+		S.sent_ESC_br6n = 1;
+		fputs("\033" "[6n", stdout);
+		fflush_all(); /* make terminal see it ASAP! */
 	}
 }
 #else
@@ -1768,7 +1765,7 @@ static void win_changed(int nsig)
 {
 	int sv_errno = errno;
 	unsigned width;
-	IF_FEATURE_EDITING_ASK_TERMINAL(S.unknown_width =) get_terminal_width_height(0, &width, NULL);
+	get_terminal_width_height(0, &width, NULL);
 	cmdedit_setwidth(width, nsig /* - just a yes/no flag */);
 	if (nsig == SIGWINCH)
 		signal(SIGWINCH, win_changed); /* rearm ourself */
-- 
1.7.1