mirror of
https://github.com/wiiu-env/wudd.git
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89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
#include <cstring>
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#include <cstddef>
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#include <whb/log.h>
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#include "logger.h"
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#include "utils.h"
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#include "TinySHA1.hpp"
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#include "../fs/FSUtils.h"
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// https://gist.github.com/ccbrown/9722406
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void Utils::dumpHex(const void *data, size_t size) {
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char ascii[17];
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size_t i, j;
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ascii[16] = '\0';
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DEBUG_FUNCTION_LINE_WRITE("0x%08X (0x0000): ", data);
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for (i = 0; i < size; ++i) {
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WHBLogWritef("%02X ", ((unsigned char *) data)[i]);
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if (((unsigned char *) data)[i] >= ' ' && ((unsigned char *) data)[i] <= '~') {
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ascii[i % 16] = ((unsigned char *) data)[i];
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} else {
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ascii[i % 16] = '.';
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}
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if ((i + 1) % 8 == 0 || i + 1 == size) {
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WHBLogWritef(" ");
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if ((i + 1) % 16 == 0) {
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WHBLogPrintf("| %s ", ascii);
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if (i + 1 < size) {
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DEBUG_FUNCTION_LINE_WRITE("0x%08X (0x%04X); ", ((uint32_t) data + i + 1), i + 1);
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}
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} else if (i + 1 == size) {
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ascii[(i + 1) % 16] = '\0';
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if ((i + 1) % 16 <= 8) {
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WHBLogWritef(" ");
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}
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for (j = (i + 1) % 16; j < 16; ++j) {
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WHBLogWritef(" ");
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}
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WHBLogPrintf("| %s ", ascii);
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}
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}
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}
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}
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std::string Utils::calculateSHA1(const char *buffer, size_t size) {
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sha1::SHA1 s;
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s.processBytes(buffer, size);
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uint32_t digest[5];
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s.getDigest(digest);
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char tmp[48];
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snprintf(tmp, 45, "%08X%08X%08X%08X%08X", digest[0], digest[1], digest[2], digest[3], digest[4]);
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return tmp;
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}
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std::string Utils::hashFile(const std::string &path) {
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uint8_t *data = NULL;
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uint32_t size = 0;
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FSUtils::LoadFileToMem(path.c_str(), &data, &size);
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if (data == NULL) {
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return calculateSHA1(NULL, 0);
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}
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std::string result = calculateSHA1(reinterpret_cast<const char *>(data), size);
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free(data);
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return result;
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}
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unsigned int swap_uint32(unsigned int val) {
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val = ((val << 8) & 0xFF00FF00) | ((val >> 8) & 0xFF00FF);
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return (val << 16) | (val >> 16);
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}
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unsigned long long swap_uint64(unsigned long long val) {
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val = ((val << 8) & 0xFF00FF00FF00FF00ULL) | ((val >> 8) & 0x00FF00FF00FF00FFULL);
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val = ((val << 16) & 0xFFFF0000FFFF0000ULL) | ((val >> 16) & 0x0000FFFF0000FFFFULL);
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return (val << 32) | (val >> 32);
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}
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/*
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* Hash function used to create a hash of each sector
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* The hashes are then compared to find duplicate sectors
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*/
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void calculateHash256(unsigned char *data, unsigned int length, unsigned char *hashOut) {
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// cheap and simple hash implementation
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// you can replace this part with your favorite hash method
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memset(hashOut, 0x00, 32);
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for (unsigned int i = 0; i < length; i++) {
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hashOut[i % 32] ^= data[i];
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hashOut[(i + 7) % 32] += data[i];
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}
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} |