X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/e8647c5764725b15fa71a4cbfa212918b50a4d6b..90e9da2566dea4fdd460e6ba110aa5a641ba0e66:/client/cmddata.c

diff --git a/client/cmddata.c b/client/cmddata.c
index 2f508efc..823da9ce 100644
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -40,8 +40,8 @@ void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx)
 	if (buff == NULL) 
 		return;
 
-	if ( size + startIdx >= MAX_DEMOD_BUF_LEN)
-		size = MAX_DEMOD_BUF_LEN;
+	if ( size > MAX_DEMOD_BUF_LEN - startIdx)
+		size = MAX_DEMOD_BUF_LEN - startIdx;
 
 	size_t i = 0;
 	for (; i < size; i++){