Saving a Mail Message to a File
If you attempt to save a mail message to a file using the
RWStreamCoupler mechanism, use the
pop3StreamFilter global function. You can find its declaration in the
pop3.h header file as the filter of the
RWStreamCoupler::operator() method. This filter indicates an end-of-data (mail) condition on a POP3 input stream, as shown in the following example.
Example 22 – Saving a mail message to a file
RWPop3DataReply reply;
reply = client.retr(1); // retrieve the first message
RWPortalIStream istr(reply.portal()); // construct an input stream
ofstream ostr("save.me"); // construct an output stream in save.me
RWStreamCoupler couple;
couple(istr, ostr, pop3StreamFilter);
