From aa71e27a3b0f42b980082c52232c68fb50a45052 Mon Sep 17 00:00:00 2001
From: Taylor Gerring <taylor.gerring@gmail.com>
Date: Thu, 2 Apr 2015 15:53:04 +0200
Subject: Detect non-valid strings for blockheight

---
 common/bytes.go | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'common')

diff --git a/common/bytes.go b/common/bytes.go
index 2d885ac74..5bdacd810 100644
--- a/common/bytes.go
+++ b/common/bytes.go
@@ -127,6 +127,11 @@ func CopyBytes(b []byte) (copiedBytes []byte) {
 	return
 }
 
+func HasHexPrefix(str string) bool {
+	l := len(str)
+	return l >= 2 && str[0:2] == "0x"
+}
+
 func IsHex(str string) bool {
 	l := len(str)
 	return l >= 4 && l%2 == 0 && str[0:2] == "0x"
-- 
cgit v1.2.3