PayloadLoaderInstaller/source/utils/utils.cpp

65 lines
2.0 KiB
C++
Raw Normal View History

2020-10-14 13:54:25 +02:00
#include <string.h>
#include <stddef.h>
#include <whb/log.h>
#include <fs/FSUtils.h>
#include "logger.h"
#include "utils.h"
#include "TinySHA1.hpp"
// https://gist.github.com/ccbrown/9722406
void Utils::dumpHex(const void *data, size_t size) {
char ascii[17];
size_t i, j;
ascii[16] = '\0';
DEBUG_FUNCTION_LINE("0x%08X (0x0000): ", data);
for (i = 0; i < size; ++i) {
WHBLogWritef("%02X ", ((unsigned char *) data)[i]);
if (((unsigned char *) data)[i] >= ' ' && ((unsigned char *) data)[i] <= '~') {
ascii[i % 16] = ((unsigned char *) data)[i];
} else {
ascii[i % 16] = '.';
}
if ((i + 1) % 8 == 0 || i + 1 == size) {
WHBLogWritef(" ");
if ((i + 1) % 16 == 0) {
WHBLogPrintf("| %s ", ascii);
if (i + 1 < size) {
2020-12-11 15:56:13 +01:00
DEBUG_FUNCTION_LINE("0x%08X (0x%04X); ", ((uint32_t)data) + i + 1, i + 1);
2020-10-14 13:54:25 +02:00
}
} else if (i + 1 == size) {
ascii[(i + 1) % 16] = '\0';
if ((i + 1) % 16 <= 8) {
WHBLogWritef(" ");
}
for (j = (i + 1) % 16; j < 16; ++j) {
WHBLogWritef(" ");
}
WHBLogPrintf("| %s ", ascii);
}
}
}
}
std::string Utils::calculateSHA1(const char *buffer, size_t size) {
sha1::SHA1 s;
s.processBytes(buffer, size);
uint32_t digest[5];
s.getDigest(digest);
char tmp[48];
snprintf(tmp, 45, "%08X%08X%08X%08X%08X", digest[0], digest[1], digest[2], digest[3], digest[4]);
return tmp;
}
std::string Utils::hashFile(const std::string &path) {
uint8_t *data = NULL;
uint32_t size = 0;
FSUtils::LoadFileToMem(path.c_str(), &data, &size);
if (data == NULL) {
return calculateSHA1(NULL, 0);
}
std::string result = calculateSHA1(reinterpret_cast<const char *>(data), size);
free(data);
return result;
}