| /****************************************************************************** |
| * |
| * Copyright (C) 2014 Google, Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| ******************************************************************************/ |
| |
| #include <base/logging.h> |
| #include <ctype.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include "btcore/include/bdaddr.h" |
| |
| bool bdaddr_is_empty(const bt_bdaddr_t* addr) { |
| CHECK(addr != NULL); |
| |
| uint8_t zero[sizeof(bt_bdaddr_t)] = {0}; |
| return memcmp(addr, &zero, sizeof(bt_bdaddr_t)) == 0; |
| } |
| |
| bool bdaddr_equals(const bt_bdaddr_t* first, const bt_bdaddr_t* second) { |
| CHECK(first != NULL); |
| CHECK(second != NULL); |
| |
| return memcmp(first, second, sizeof(bt_bdaddr_t)) == 0; |
| } |
| |
| bt_bdaddr_t* bdaddr_copy(bt_bdaddr_t* dest, const bt_bdaddr_t* src) { |
| CHECK(dest != NULL); |
| CHECK(src != NULL); |
| |
| return (bt_bdaddr_t*)memcpy(dest, src, sizeof(bt_bdaddr_t)); |
| } |
| |
| const char* bdaddr_to_string(const bt_bdaddr_t* addr, char* string, |
| size_t size) { |
| CHECK(addr != NULL); |
| CHECK(string != NULL); |
| |
| if (size < 18) return NULL; |
| |
| const uint8_t* ptr = addr->address; |
| snprintf(string, size, "%02x:%02x:%02x:%02x:%02x:%02x", ptr[0], ptr[1], |
| ptr[2], ptr[3], ptr[4], ptr[5]); |
| return string; |
| } |
| |
| bool string_is_bdaddr(const char* string) { |
| CHECK(string != NULL); |
| |
| size_t len = strlen(string); |
| if (len != 17) return false; |
| |
| for (size_t i = 0; i < len; ++i) { |
| // Every 3rd char must be ':'. |
| if (((i + 1) % 3) == 0 && string[i] != ':') return false; |
| |
| // All other chars must be a hex digit. |
| if (((i + 1) % 3) != 0 && !isxdigit(string[i])) return false; |
| } |
| return true; |
| } |
| |
| bool string_to_bdaddr(const char* string, bt_bdaddr_t* addr) { |
| CHECK(string != NULL); |
| CHECK(addr != NULL); |
| |
| bt_bdaddr_t new_addr; |
| uint8_t* ptr = new_addr.address; |
| bool ret = sscanf(string, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx", |
| &ptr[0], &ptr[1], &ptr[2], &ptr[3], &ptr[4], &ptr[5]) == 6; |
| |
| if (ret) memcpy(addr, &new_addr, sizeof(bt_bdaddr_t)); |
| |
| return ret; |
| } |