From 446bf376984c0ab0453ec79577b590225e36d991 Mon Sep 17 00:00:00 2001
From: Holger Hans Peter Freyther <zecke@selfish.org>
Date: Tue, 20 Jul 2010 02:54:54 +0800
Subject: gsm_7bit_decode: Handle the case of the last charachter being an
 escape

If i + 1 == length and it is an escape charachter we would try
to read rtext[length] which is one after the field we have allocated.
---
 src/gsm_utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gsm_utils.c b/src/gsm_utils.c
index fb69377f..3a378ace 100644
--- a/src/gsm_utils.c
+++ b/src/gsm_utils.c
@@ -65,7 +65,7 @@ int gsm_7bit_decode(char *text, const uint8_t *user_data, uint8_t length)
 	}
 	for(i = 0; i < length; i++){
 		/* this is an extension character */
-		if(rtext[i] == 0x1b){
+		if(rtext[i] == 0x1b && i + 1 < length){
 			tmp = rtext[i+1];
 			*(text++) = gsm_7bit_alphabet[0x7f + tmp];
 			i++;
-- 
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