From 61142605f8026917b0b27c256f314d794af42866 Mon Sep 17 00:00:00 2001
From: Lukasz Rymanowski <lukasz.rymanowski@tieto.com>
Date: Thu, 30 Oct 2014 00:16:23 +0100
Subject: [PATCH] shared/hfp: Fix for invalid string copy

This part of code handles case when data in ring buffer are wrapped.
In that case str is not a string so we shall not use asprintf but
memcpy
---
 src/shared/hfp.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/shared/hfp.c b/src/shared/hfp.c
index 0ce38cc24..8f23ba2f0 100644
--- a/src/shared/hfp.c
+++ b/src/shared/hfp.c
@@ -447,7 +447,15 @@ static void process_input(struct hfp_gw *hfp)
 			return;
 
 		*ptr = '\0';
-		count = asprintf(&ptr, "%s%s", str, str2);
+
+		count = len2 + len;
+		ptr = malloc(count);
+		if (!ptr)
+			return;
+
+		memcpy(ptr, str, len);
+		memcpy(ptr + len, str2, len2);
+
 		free_ptr = true;
 		str = ptr;
 	} else {
-- 
2.47.3