How to feed attachment chain

[Mariusz Wojsyk]

Greetings.

  What I want to do is to feed an attachment chain with some 
dynamic data I produce "by the fly". One way I can think of is dump 
all to some file and then do something like:

FileSource fs("temp.file", true, new Gzip gz(new 
FileSink("test.txt.gz")));

But I want to avoid any temporary files.
So, can I do it like this:
(I use crypto++ 5.1 with VC++ 6.0 on Win2k)

//      main.cpp        //
#include <files.h>
#include <gzip.h>

#include <iostream>
#include <string>

using namespace CryptoPP;
using namespace std;

int main()
{
  string s1;

  try
  {
    Gzip gz(new FileSink("test.txt.gz"));

    do
    {
      cin >> s1;

      //-- I'm not sure about this: --//
      gz.Put(reinterpret_cast<const unsigned char *>(s1.c_str()), 
s1.length());
    }
    while (s1 != "x");

    gz.MessageEnd();
    gz.MessageSeriesEnd();
  }
  catch(Exception const &e)
  {
    cout << e.what();
  }

  return 0;
}



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