From: Karel Zak <kzak@redhat.com>
Date: Mon, 2 May 2022 10:57:13 +0000 (+0200)
Subject: more: avoid infinite loop on --squeeze
X-Git-Tag: v2.38.1~56
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b269ca07383ae93589e36544da414931cdb6e3d7;p=thirdparty%2Futil-linux.git

more: avoid infinite loop on --squeeze

The command 'echo | more -s' ends in infinite loop if exit-on-EOF is
disabled (default now). We need to call more_key_command() to ask for
user's reaction.

Fixes: https://github.com/util-linux/util-linux/issues/1669
Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/text-utils/more.c b/text-utils/more.c
index a0d62bd5bf..e3e2a43364 100644
--- a/text-utils/more.c
+++ b/text-utils/more.c
@@ -1828,7 +1828,7 @@ static void screen(struct more_control *ctl, int num_lines)
 					putp(ctl->clear_rest);
 				return;
 			}
-			if (ctl->squeeze_spaces && length == 0 && prev_len == 0)
+			if (ctl->squeeze_spaces && length == 0 && prev_len == 0 && !ctl->is_eof)
 				continue;
 			prev_len = length;
 			if (ctl->bad_stdout