mirror of
https://github.com/geode-sdk/geode.git
synced 2024-12-12 00:51:13 -05:00
bbf2608ac2
The previous library we used (picosha3) returned a wrong hash for one particular file. Though this was quite rare (we only found 1 such file), it was a bug with the library regardless. The current sha3 library now comes from https://github.com/stbrumme/hash-library
44 lines
No EOL
1.2 KiB
C++
44 lines
No EOL
1.2 KiB
C++
#include "hash.hpp"
|
|
|
|
// shh, its fine :-)
|
|
#include "sha3.cpp"
|
|
|
|
#include <string>
|
|
#include <fstream>
|
|
#include <ciso646>
|
|
#include "picosha2.h"
|
|
#include <vector>
|
|
|
|
template <class Func>
|
|
void readBuffered(std::ifstream& stream, Func func) {
|
|
constexpr size_t BUF_SIZE = 4096;
|
|
stream.exceptions(std::ios_base::badbit);
|
|
|
|
std::vector<uint8_t> buffer(BUF_SIZE);
|
|
while (true) {
|
|
stream.read(reinterpret_cast<char*>(buffer.data()), BUF_SIZE);
|
|
size_t amt = stream ? BUF_SIZE : stream.gcount();
|
|
func(buffer.data(), amt);
|
|
if (!stream) break;
|
|
}
|
|
}
|
|
|
|
std::string calculateSHA3_256(ghc::filesystem::path const& path) {
|
|
std::ifstream file(path, std::ios::binary);
|
|
SHA3 sha;
|
|
readBuffered(file, [&](const void* data, size_t amt) {
|
|
sha.add(data, amt);
|
|
});
|
|
return sha.getHash();
|
|
}
|
|
|
|
std::string calculateSHA256(ghc::filesystem::path const& path) {
|
|
std::vector<uint8_t> hash(picosha2::k_digest_size);
|
|
std::ifstream file(path, std::ios::binary);
|
|
picosha2::hash256(file, hash.begin(), hash.end());
|
|
return picosha2::bytes_to_hex_string(hash.begin(), hash.end());
|
|
}
|
|
|
|
std::string calculateHash(ghc::filesystem::path const& path) {
|
|
return calculateSHA3_256(path);
|
|
} |