1 /* 2 * Copyright 2012, 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 #ifndef BCC_SUPPORT_SHA1_UTIL_H 18 #define BCC_SUPPORT_SHA1_UTIL_H 19 20 #include <stdint.h> 21 22 #include <cstddef> 23 24 // This guard prevents system sha1.h (such as the one in bionic) has been 25 // included before this header. 26 #ifndef SHA1_DIGEST_LENGTH 27 #define SHA1_DIGEST_LENGTH 20 28 #endif 29 30 namespace bcc { 31 32 class Sha1Util { 33 private: 34 Sha1Util(); // DISABLED. 35 Sha1Util(Sha1Util &); // DISABLED. 36 37 public: 38 // Return true on success. 39 static bool GetSHA1DigestFromFile(uint8_t pResult[SHA1_DIGEST_LENGTH], 40 const char *pFilename); 41 42 // Return true on success. 43 static bool GetSHA1DigestFromBuffer(uint8_t pResult[SHA1_DIGEST_LENGTH], 44 const uint8_t *pData, size_t pSize); 45 46 // Useful function when passing buffer of type "const char *." GetSHA1DigestFromBuffer(uint8_t pResult[SHA1_DIGEST_LENGTH],const char * pData,size_t pSize)47 static bool GetSHA1DigestFromBuffer(uint8_t pResult[SHA1_DIGEST_LENGTH], 48 const char *pData, size_t pSize) { 49 return GetSHA1DigestFromBuffer(pResult, 50 reinterpret_cast<const uint8_t*>(pData), 51 pSize); 52 } 53 }; 54 55 } // end namespace bcc 56 57 #endif // BCC_SUPPORT_SHA1_UTIL_H 58