[rpc] ParseHash: Fail when length is not 64

Github-Pull: #9042 Rebased-From: fa326193ad739d1f93da456b3fa73af0bbf9fdd1
2016-10-30 16:58:13 +01:00
parent 973ca1e491
commit 5bcb05d4e1
1 changed files with 2 additions and 0 deletions
--- a/src/rpc/server.cpp
+++ b/src/rpc/server.cpp
@@ -146,6 +146,8 @@ uint256 ParseHashV(const UniValue& v, string strName)
        strHex = v.get_str();
    if (!IsHex(strHex)) // Note: IsHex("") is false
        throw JSONRPCError(RPC_INVALID_PARAMETER, strName+" must be hexadecimal string (not '"+strHex+"')");
+    if (64 != strHex.length())
+        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("%s must be of length %d (not %d)", strName, 64, strHex.length()));
    uint256 result;
    result.SetHex(strHex);
    return result;