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61 lines
1.3 KiB
61 lines
1.3 KiB
#include <fstream>
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#include <cstdlib>
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#include <climits>
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#include <ctime>
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#include <iostream>
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using namespace std;
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int file_size(const char *filename){
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ifstream ifile;
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ifile.open(filename, ios_base::binary | ios_base::ate);
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int size = ifile.tellg();
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ifile.close();
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return size;
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}
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int main(int argc,char** argv) {
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for (int i = 0; i < 2; i++) {
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// Read my own program
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ifstream ifile;
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ifile.open(argv[0], ios::binary) ;
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srand( time(NULL) );
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int filesize = file_size(argv[0]);
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int rand_byte = rand() % ( filesize + 1 );
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// Devide
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ofstream ofile;
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string filename = tempnam(".", "bact-");
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cout << "Creating new bacteria called: "<< filename << " with size:" << file_size(argv[0]) << '\n';;
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ofile.open(filename, ios::binary | ios::out);
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if ( ifile.fail() or ofile.fail() ) {
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return 1; //error
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}
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int byte_counter = 0;
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while (!ifile.eof()) {
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unsigned char c;
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c = ifile.get();
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if (ifile.fail()) {
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break;
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}
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if (byte_counter == rand_byte and i == 1) {
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int bit = rand() % CHAR_BIT;
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cout << "Mutating bit: " << bit << " of byte: " << byte_counter << '\n';
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c ^= (1u << bit);
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}
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ofile.put(c);
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byte_counter++;
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}
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ofile.close();
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string executable = "/bin/chmod +x " + filename;
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string run = filename;
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system(executable.c_str());
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//system(run.c_str());
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}
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return 0;
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}
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