static void Main(string[] args)
{
string filename = args[0];
if (string.IsNullOrEmpty(filename))
{
Console.WriteLine("filename param missing");
return;
}
if (File.Exists(filename))
{
CryptoProvider crypt = new CryptoProvider(new SHA256CryptoServiceProvider());
FileInfo f = new FileInfo(filename);
var directory = f.Directory;
if (directory != null)
{
var fileName = f.FullName + ".hash";
if (args.Length == 2)
{
fileName = args[1];
Console.WriteLine("output file name provided" + args[1]);
}
else
{
Console.WriteLine("output file name generated as" + fileName);
}
var sb = new StringBuilder();
var hash = crypt.ComputeHash(File.Open(filename, FileMode.Open));
foreach (var b in hash)
{
sb.Append(b);
}
File.WriteAllText(fileName, sb.ToString());
}
}
else
{
Console.WriteLine("File does not exist");
}
}