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GeezerVison is showing github.com — ShellcodeCompiler/ShellcodeCompiler/Utils.cpp at master · DevilBot000/ShellcodeCompiler

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Utils.cpp

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#include "Utils.h"
// Check if a file exists
bool Utils::FileExists(string p_sPath)
{
if (FILE * file = fopen(p_sPath.c_str(), "r")) {
fclose(file);
return true;
}
else {
return false;
}
}
// Delete a file
bool Utils::DeleteSourceFile(string p_sFile)
{
return (bool)remove(p_sFile.c_str());
}
// Function used to read a file
string Utils::ReadSourceFile(string p_sFilename)
{
string contents = "";
FILE* f = fopen(p_sFilename.c_str(), "rb");
// Get file size
fseek(f, 0, SEEK_END);
size_t size = ftell(f);
char* cdata = new char[size + 1];
cdata[size] = '\0';
// Read file
rewind(f);
fread(cdata, sizeof(char), size, f);
fclose(f);
// Return data
contents = cdata;
delete[] cdata;
return contents;
}
// Get the size of a file
size_t Utils::GetSize(string p_sFilename)
{
size_t size;
FILE* f = fopen(p_sFilename.c_str(), "rb");
// Get file size
fseek(f, 0, SEEK_END);
size = ftell(f);
rewind(f);
fclose(f);
return size;
}
// Read binary file
unsigned char* Utils::ReadBinaryFile(string p_sFilename, size_t *p_rSize)
{
unsigned char *p = NULL;
FILE* f = NULL;
size_t res = 0;
if (!FileExists(p_sFilename))
{
cout << "Binary file does not exists!" << endl;
return NULL;
}
// Get size and allocate space
*p_rSize = GetSize(p_sFilename);
if (*p_rSize == 0) return NULL;
f = fopen(p_sFilename.c_str(), "rb");
p = new unsigned char[*p_rSize];
// Read file
rewind(f);
res = fread(p, sizeof(unsigned char), *p_rSize, f);
fclose(f);
if (res == 0)
{
delete[] p;
return NULL;
}
return p;
}
// Write output to file
void Utils::WriteToFile(string p_sOutputFile, string p_sData)
{
FILE* f = fopen(p_sOutputFile.c_str(), "ab");
// Write
fwrite(p_sData.c_str(), p_sData.length(), sizeof(char), f);
// Close
fclose(f);
}
// Write a binary file
size_t Utils::WriteBinaryFile(string p_sOutputFile, unsigned char *p_pcData, size_t p_nSize)
{
size_t nResult = 0;
FILE* f = fopen(p_sOutputFile.c_str(), "wb");
// Write
nResult = fwrite(p_pcData, p_nSize, sizeof(char), f);
// Close
fclose(f);
return nResult;
}
// Return hex string for a char
string Utils::CharToHexString(char p_cChar)
{
stringstream ss;
ss << hex << (int)p_cChar;
string mystr = ss.str();
return mystr;
}
// Convert int to hex
string Utils::IntToHexString(size_t p_iNumber)
{
std::stringstream stream;
stream << std::hex << p_iNumber;
std::string result(stream.str());
return result;
}
// Function used to check if a character is "string": [a-z][A-Z][0-9][Specail]
bool Utils::IsString(char p_cCharacter)
{
return (p_cCharacter >= 32 && p_cCharacter <= 126 &&
p_cCharacter != '"' && p_cCharacter != ')' && p_cCharacter != '(' && p_cCharacter != ',');
}
// Function to convert a string to lower
string Utils::ToLower(string p_sString)
{
string result = "";
for (size_t i = 0; i < p_sString.length(); i++)
{
if (p_sString[i] >= 65 && p_sString[i] <= 90) result += (char)(p_sString[i] + 32);
else result += p_sString[i];
}
return result;
}
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