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| 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 "chrome/browser/chromeos/bluetooth/bluetooth_utils.h" | |
| 6 | |
| 7 #include <vector> | |
| 8 | |
| 9 #include <bluetooth/bluetooth.h> | |
| 10 | |
| 11 #include "base/logging.h" | |
| 12 #include "base/string_number_conversions.h" | |
| 13 #include "base/string_util.h" | |
| 14 | |
| 15 namespace { | |
| 16 static const char* kCommonUuidPostfix = "-0000-1000-8000-00805f9b34fb"; | |
| 17 static const char* kCommonUuidPrefix = "0000"; | |
| 18 static const int kUuidSize = 36; | |
| 19 } // namespace | |
| 20 | |
| 21 namespace chromeos { | |
| 22 namespace bluetooth_utils { | |
| 23 | |
| 24 bool str2ba(const std::string& in_address, bdaddr_t* out_address) { | |
| 25 if (!out_address) | |
| 26 return false; | |
| 27 | |
| 28 memset(out_address, 0, sizeof(*out_address)); | |
| 29 | |
| 30 if (in_address.size() != 17) | |
| 31 return false; | |
| 32 | |
| 33 std::string numbers_only; | |
| 34 for (int i = 0; i < 6; ++i) { | |
| 35 numbers_only += in_address.substr(i * 3, 2); | |
| 36 } | |
| 37 | |
| 38 std::vector<uint8> address_bytes; | |
| 39 if (base::HexStringToBytes(numbers_only, &address_bytes)) { | |
| 40 if (address_bytes.size() == 6) { | |
| 41 for (int i = 0; i < 6; ++i) { | |
| 42 out_address->b[5 - i] = address_bytes[i]; | |
| 43 } | |
| 44 return true; | |
| 45 } | |
| 46 } | |
| 47 | |
| 48 return false; | |
| 49 } | |
| 50 | |
| 51 std::string CanonicalUuid(std::string uuid) { | |
| 52 if (uuid.empty()) | |
| 53 return ""; | |
| 54 | |
| 55 if (uuid.size() < 11 && uuid.find("0x") == 0) | |
| 56 uuid = uuid.substr(2); | |
| 57 | |
| 58 if (!(uuid.size() == 4 || uuid.size() == 8 || uuid.size() == 36)) | |
| 59 return ""; | |
| 60 | |
| 61 if (uuid.size() == 4 || uuid.size() == 8) { | |
| 62 for (size_t i = 0; i < uuid.size(); ++i) { | |
| 63 if (!IsHexDigit(uuid[i])) | |
| 64 return ""; | |
| 65 } | |
| 66 | |
| 67 if (uuid.size() == 4) | |
| 68 return kCommonUuidPrefix + uuid + kCommonUuidPostfix; | |
| 69 | |
| 70 return uuid + kCommonUuidPostfix; | |
| 71 } | |
| 72 | |
| 73 std::string uuid_result(uuid); | |
| 74 for (int i = 0; i < kUuidSize; ++i) { | |
| 75 if (i == 8 || i == 13 || i == 18 || i == 23) { | |
| 76 if (uuid[i] != '-') | |
| 77 return ""; | |
| 78 } else { | |
| 79 if (!IsHexDigit(uuid[i])) | |
| 80 return ""; | |
| 81 uuid_result[i] = tolower(uuid[i]); | |
| 82 } | |
| 83 } | |
| 84 return uuid_result; | |
| 85 } | |
| 86 | |
| 87 } // namespace bluetooth_utils | |
| 88 } // namespace chromeos | |
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