From 2e64a5d4e17b74cd65ea6d94b6b04827215d683a Mon Sep 17 00:00:00 2001
From: "timecop@gmail.com"
 <timecop@gmail.com@7c89a4a9-59b9-e629-4cfe-3a2d53b20e61>
Date: Fri, 10 May 2013 03:00:02 +0000
Subject: [PATCH] premature buffer overrun fix for completion add ctrl+u to
 erase line

git-svn-id: https://afrodevices.googlecode.com/svn/trunk/baseflight@318 7c89a4a9-59b9-e629-4cfe-3a2d53b20e61
---
 src/cli.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/cli.c b/src/cli.c
index 3a0c6dac5..e95efeb2f 100644
--- a/src/cli.c
+++ b/src/cli.c
@@ -948,9 +948,10 @@ void cliProcess(void)
                 for (; ; bufferIndex++) {
                     if (pstart->name[bufferIndex] != pend->name[bufferIndex])
                         break;
-                    if (!pstart->name[bufferIndex]) {
+                    if (!pstart->name[bufferIndex] && bufferIndex < sizeof(cliBuffer) - 2) {
                         /* Unambiguous -- append a space */
                         cliBuffer[bufferIndex++] = ' ';
+                        cliBuffer[bufferIndex] = '\0';
                         break;
                     }
                     cliBuffer[bufferIndex] = pstart->name[bufferIndex];
@@ -971,6 +972,11 @@ void cliProcess(void)
         } else if (!bufferIndex && c == 4) {
             cliExit(cliBuffer);
             return;
+        } else if (c == 0x15) {
+            // ctrl+u == delete line
+            uartPrint("\033[G\033[K# ");
+            bufferIndex = 0;
+            *cliBuffer = '\0';
         } else if (c == 0x0b) {
             //uartPrint("up unimplemented");
         } else if (c == 0x0a) {