| // Copyright 2016 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. |
| #ifndef SECURITY_UTIL_LITE_UTIL_H_ |
| #define SECURITY_UTIL_LITE_UTIL_H_ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif // __cplusplus |
| |
| /* An implementation of memset that ought not to be optimized away; |
| * useful for scrubbing security sensitive buffers. */ |
| void *always_memset(void *s, int c, size_t n); |
| |
| /* Constant-time memory equality test. Returns 0 to indicate equivalence to |
| * behave in a memcmp()-compatible way. */ |
| int ct_memeq(const void* s1, const void* s2, uint32_t n); |
| |
| #ifdef __cplusplus |
| } |
| #endif // __cplusplus |
| |
| #endif // SECURITY_UTIL_LITE_UTIL_H_ |
