1 /* 2 * Copyright 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <keymaster/google_keymaster_utils.h> 18 19 namespace keymaster { 20 21 uint8_t* dup_buffer(const void* buf, size_t size) { 22 uint8_t* retval = new uint8_t[size]; 23 if (retval != NULL) 24 memcpy(retval, buf, size); 25 return retval; 26 } 27 28 int memcmp_s(const void* p1, const void* p2, size_t length) { 29 const uint8_t* s1 = static_cast<const uint8_t*>(p1); 30 const uint8_t* s2 = static_cast<const uint8_t*>(p2); 31 uint8_t result = 0; 32 while (length-- > 0) 33 result |= *s1++ ^ *s2++; 34 return result == 0 ? 0 : 1; 35 } 36 37 } // namespace keymaster 38
