Mark Eichin submitted bug report #1480821

                                  Changelog

Daniel (4 May 2006)

- Mark Eichin submitted bug report #1480821

  (http://curl.haxx.se/bug/view.cgi?id=1480821) He found and identified a

  problem with how libcurl dealt with GnuTLS and a case where gnutls returned

  GNUTLS_E_AGAIN indicating it would block. It would then return an unexpected

  return code, making Curl_ssl_send() confuse the upper layer - causing random

  28 bytes trash data to get inserted in the transfered stream.

  The proper fix was to make the Curl_gtls_send() function return the proper

  return codes that the callers would expect. The Curl_ossl_send() function

  already did this.

Daniel (2 May 2006)

- Added a --checkfor option to curl-config to allow users to easier 

  write for example shell scripts that test for the presence of a 

This release includes the following bugfixes:

 o GnuTLS non-block case that could cause data trashing

 o deflate code survives lack of zlib header

 o CURLOPT_INTERFACE works with hostname

 o configure runs fine with ICC

 Dan Fandrich, Ilja van Sprundel, David McCreedy, Tor Arntsen, Xavier Bouchoux,

 David Byron, Michele Bini, Ates Goral, Katie Wang, Robson Braga Araujo,

 Ale Vesely, Paul Querna, Gisle Vanem

 Ale Vesely, Paul Querna, Gisle Vanem, Mark Eichin

        Thanks! (and sorry if I forgot to mention someone)

  int rc;

  rc = gnutls_record_send(conn->ssl[sockindex].session, mem, len);

  if(rc < 0 ) {

    if(rc == GNUTLS_E_AGAIN)

      return 0; /* EWOULDBLOCK equivalent */

    rc = -1; /* generic error code for send failure */

  }

  return rc;

}