static void Main(string[] args)
{
string path = @"shivr.txt";
string text_for_test = "";
using (StreamReader reader = File.OpenText(path))
{
text_for_test = reader.ReadToEnd();
}
Stream input = Console.OpenStandardInput();
Stream output = Console.OpenStandardOutput();
Stream stderr = Console.OpenStandardError();
HELP help = new HELP();
string problem = "";
if (args[0] == "-help")
{
problem = help.help(problem);
stderr.Write(Encoding.ASCII.GetBytes(problem), 0, problem.Length);
Environment.Exit(0);
}
byte[] Header = new byte[2];
byte[] Lenght = new byte[2];
byte[] title_for_comments = new byte[2];
title_for_comments[0] = (byte)0XFF;
title_for_comments[1] = (byte)0XFE;
byte[] comments_conteins = new byte[32000];
byte[] text = Encoding.ASCII.GetBytes(text_for_test);
int i = text.Length / 32000;
bool repeat = true;
byte[] lenght_mass_1 = new byte[2];
int p = 0;
input.Read(Header, 0, 2);
output.Write(Header, 0, 2);
uint j = 2;
if (BitConverter.ToUInt16(Header, 0) != 0XD8FF)
{
problem = "It is not JPEG";
stderr.Write(Encoding.ASCII.GetBytes(problem), 0, problem.Length);
Environment.Exit(1);
}
while (input.Read(Header, 0, 2) == 2)
{
output.Write(Header, 0, 2);
j += 2;
if (input.Read(Lenght, 0, 2) < 2)
{
j += 2;
problem = "Problems with the Lenght";
stderr.Write(Encoding.ASCII.GetBytes(problem), 0, problem.Length);
problem = "the location of problem is " + j;
stderr.Write(Encoding.ASCII.GetBytes(problem), 0, problem.Length);
Environment.Exit(2);
}
j += 2;
output.Write(Lenght, 0, 2);
Array.Reverse(Lenght);
UInt16 L = (UInt16)(BitConverter.ToUInt16(Lenght, 0) - 2);
j += L;
byte[] mass_1 = new byte[L];
int l = input.Read(mass_1, 0, (int)L);
if (l != L)
{
problem = "Jpeg is Currupted";
stderr.Write(Encoding.ASCII.GetBytes(problem), 0, problem.Length);
problem = "Expect" + L;
stderr.Write(Encoding.ASCII.GetBytes(problem), 0, problem.Length);
problem = "read" + l;
stderr.Write(Encoding.ASCII.GetBytes(problem), 0, problem.Length);
problem = "in the unit" + j;
stderr.Write(Encoding.ASCII.GetBytes(problem), 0, problem.Length);
Environment.Exit(3);
}
output.Write(mass_1, 0, mass_1.Length);
if (BitConverter.ToUInt16(Header, 0) == 0xFEFF)
{
if (args[0] == "-DEC")
{
stderr.Write(mass_1, 0, mass_1.Length);
}
continue;
}
if (args[0] == "-Enc")
{
if (text_for_test.Length >= 32000)
{
if (repeat == true)
{
string warning = "Warning: the size of comment is very big";
stderr.Write(Encoding.ASCII.GetBytes(warning), 0, warning.Length);
while (p != (i))
{
output.Write(title_for_comments, 0, 2);
UInt16 text_of_lenght_to_byte = (UInt16)(32000 + 2);
lenght_mass_1 = BitConverter.GetBytes(text_of_lenght_to_byte);
Array.Reverse(lenght_mass_1);
output.Write(lenght_mass_1, 0, lenght_mass_1.Length);
Array.Copy(text, p * 32000, comments_conteins, 0, 32000);
output.Write(comments_conteins, 0, 32000);
p++;
}
if (text.Length % 32000 != 0)
{
output.Write(title_for_comments, 0, 2);
UInt16 text_of_lenght_to_byte = (UInt16)(text.Length - (32000 * i) + 2);
lenght_mass_1 = BitConverter.GetBytes(text_of_lenght_to_byte);
Array.Reverse(lenght_mass_1);
output.Write(lenght_mass_1, 0, lenght_mass_1.Length);
Array.Copy(text, i * 32000, comments_conteins, 0, text.Length - (32000 * i));
output.Write(comments_conteins, 0, text.Length - (32000 * i));
}
repeat = false;
}
}
else
{
output.Write(title_for_comments, 0, 2);
UInt16 text_of_lenght_to_byte = (UInt16)(text_for_test.Length + 2);
lenght_mass_1 = BitConverter.GetBytes(text_of_lenght_to_byte);
Array.Reverse(lenght_mass_1);
output.Write(lenght_mass_1, 0, lenght_mass_1.Length);
output.Write(Encoding.ASCII.GetBytes(text_for_test), 0, text_for_test.Length);
}
}
if (BitConverter.ToUInt16(Header, 0) == 0XDAFF)
{
int bytes = input.ReadByte();
output.WriteByte((byte)bytes);
while (bytes != -1)
{
bytes = input.ReadByte();
if (bytes == -1)
{
break;
}
output.WriteByte((byte)bytes);
}
}
}
}
