//arguments to output to file(input file, output file, frequency data file)
//arguments to output to console(input file, frequency data file)
int main(int argc, char* argv[])
{
float given[26], found[26];
int key;
if (argc != 4 && argc != 3)
{
printf ("Arguments to output to file: infile, outfile, data file\nArguments to output to console: infile, data file\n");
exit(1);
}
//prints to console
if(argc == 3)
{
readFreq(given, argv[2]);
calcFreq(found, argv[1]);
key = findKey(given, found);
decrypt(key, argv[1]);
}
else if (argc == 4) //prints to output file
{
readFreq(given, argv[3]);
calcFreq(found, argv[1]);
key = findKey(given, found);
decryptToFile(key, argv[1], argv[2]);
}
return 0;
}
void Channel1::SweepUnit::event() {
unsigned long const period = nr0_ >> 4 & 0x07;
if (period) {
unsigned const freq = calcFreq();
if (!(freq & 2048) && (nr0_ & 0x07)) {
shadow_ = freq;
dutyUnit_.setFreq(freq, counter_);
calcFreq();
}
counter_ += period << 14;
} else
counter_ += 8ul << 14;
}
// Main method for decoder.c
int main(int argc, char* argv[]){
FILE *fin;
FILE *fout;
int option;
int key;
char ch;
// Applies all spots to 0
float given[26] = {0};
float found[26] = {0};
// Initial check for correct arguments, take from cipher.c
if (argc != 5){
printf ("Parameters: cipher option, key, input file, output file\n");
printf ("Cipher option 1 : encryption\tCipher option 2 : decryption\n");
exit(1);
}
// Assign integer values to key and selection of encryption/decription
option = atoi(argv[1]);
key = atoi(argv[2]);
// This invokes decription when user prompts input option as 2
if (option == 2){
// Process for decoding:
// 1.Read file 2.Calcuate frequencies given
// 3.Find the key for decoding and 4.Decode the file
readFreq(given, "LetFreq.txt");
calcFreq(found, argv[3]);
int key = findKey(given, found);
decrypt(key, argv[3], argv[4]);
}
// This was made as a fail safe to using the makefile, it will
// encrypt regardless of if it was before when the user wishes to do
// such. Also this made developing much easier because I only needed
// to run my file for it to execute the full encrypt/decrypt process
else{
// Main files to receive code to encrypt and file to send output to
fin = fopen(argv[3], "r");
fout = fopen(argv[4], "w");
// Checks if files exist
if (fin == NULL || fout == NULL){
printf("File could not be opened\n");
exit(1);
}
// Prints encrypted text to the output file defined above
while (fscanf(fin, "%c", &ch) != EOF){
fprintf(fout, "%c", encrypt(ch, key));
}
// Seal off files after being written to or read from
fclose(fin);
fclose(fout);
}
return 0;
}
int main (int argc, char* argv[]) {
readFreq (letFreq, argv[1]);
calcFreq (inputFreq, argv[2]);
decrypt(findKey (letFreq, inputFreq), argv[2]);
return 0;
}
