1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/guid.h" 6 7 namespace base { 8 9 bool IsValidGUID(const std::string& guid) { 10 const size_t kGUIDLength = 36U; 11 if (guid.length() != kGUIDLength) 12 return false; 13 14 const std::string hexchars = "0123456789ABCDEF"; 15 for (uint32 i = 0; i < guid.length(); ++i) { 16 char current = guid[i]; 17 if (i == 8 || i == 13 || i == 18 || i == 23) { 18 if (current != '-') 19 return false; 20 } else { 21 if (hexchars.find(current) == std::string::npos) 22 return false; 23 } 24 } 25 26 return true; 27 } 28 29 } // namespace base 30
