From: Josh Lehan <krellan@krellan.net>
Date: Mon, 12 Oct 2015 21:18:35 +0000 (-0700)
Subject: Escape DEL char (ASCII 127 decimal) in SSIDs
X-Git-Tag: hostap_2_6~1514
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=1d61a8efee98a5ba8fd5978fb096d255bdfa87b1;p=thirdparty%2Fhostap.git

Escape DEL char (ASCII 127 decimal) in SSIDs

While testing, I noticed that printf_encode() makes control characters
human-readable, with one exemption, the DEL character (ASCII 127).
Assuming this exemption was unintentional, make it appear as an escaped
\x7f instead of a literal DEL character in the output.

Signed-off-by: Josh Lehan <krellan@krellan.net>
---

diff --git a/src/utils/common.c b/src/utils/common.c
index 660e9fc98..e74a2ae75 100644
--- a/src/utils/common.c
+++ b/src/utils/common.c
@@ -498,7 +498,7 @@ void printf_encode(char *txt, size_t maxlen, const u8 *data, size_t len)
 			*txt++ = 't';
 			break;
 		default:
-			if (data[i] >= 32 && data[i] <= 127) {
+			if (data[i] >= 32 && data[i] <= 126) {
 				*txt++ = data[i];
 			} else {
 				txt += os_snprintf(txt, end - txt, "\\x%02x",