From: Steve Bennett <steveb@workware.net.au>
Date: Sun, 22 Nov 2020 04:58:45 +0000 (+1000)
Subject: cli_readline: Only insert printable chars
X-Git-Url: http://git.dujemihanovic.xyz/%22http:/www.sics.se/static/git-favicon.png?a=commitdiff_plain;h=d2e64d29c44dee6d455f7705dd1cf1af8674ad9a;p=u-boot.git

cli_readline: Only insert printable chars

There should be no need to insert non-printable characters
and this prevents line editing getting confused.

Signed-off-by: Steve Bennett <steveb@workware.net.au>
---

diff --git a/common/cli_readline.c b/common/cli_readline.c
index 47b876285c..5c158d03b4 100644
--- a/common/cli_readline.c
+++ b/common/cli_readline.c
@@ -493,8 +493,10 @@ static int cread_line(const char *const prompt, char *buf, unsigned int *len,
 		}
 #endif
 		default:
-			cread_add_char(ichar, insert, &num, &eol_num, buf,
-				       *len);
+			if (ichar >= ' ' && ichar <= '~') {
+				cread_add_char(ichar, insert, &num, &eol_num,
+					       buf, *len);
+			}
 			break;
 		}
 	}