Copy data from connection to dynamic string
int Ns_ConnCopyToDString( Ns_Conn *conn, size_t iToCopy, Ns_DString *pds );
The Ns_ConnCopyToDString function copies iToCopy
bytes of data from the connection to the Ns_DString pointed to by pds
. Ns_ConnCopyToDString returns a status of NS_OK or NS_ERROR.
See the example for Ns_ConnContentLength.