From b2c6bc488b22025213fc39b73139e5c640ffeaa1 Mon Sep 17 00:00:00 2001
From: Michael Jumper <mike.jumper@guac-dev.org>
Date: Thu, 17 Jul 2014 12:33:46 -0700
Subject: [PATCH] GUAC-763: Remove stripping of non-printable chars. It will
 break UTF-8, and the signedness of line_buffer makes the comparisons
 questionable.

---
 src/protocols/telnet/telnet_client.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/src/protocols/telnet/telnet_client.c b/src/protocols/telnet/telnet_client.c
index 6794d750..35893379 100644
--- a/src/protocols/telnet/telnet_client.c
+++ b/src/protocols/telnet/telnet_client.c
@@ -122,13 +122,6 @@ static bool __guac_telnet_regex_search(guac_client* client, regex_t* regex, char
     length += size;
     line_buffer[length] = '\0';
 
-    /* Remove non-printable characters as they interfere with regex matching */
-    for (int i = 0; i < length; i++) {
-        if (line_buffer[i] <= 31 || (line_buffer[i] >= 128 && line_buffer[i] <= 255)) {
-            line_buffer[i] = ' ';
-        }
-    }
-
     /* Send password upon match */
     if (regexec(regex, line_buffer, 0, NULL, 0) == 0) {