Ciao,

  I am writing a binding for a language; as utility
function, I want to write a callback generator for the
"curl_conv_callback" type to be used with the:

CURLOPT_CONV_TO_NETWORK_FUNCTION
CURLOPT_CONV_FROM_NETWORK_FUNCTION
CURLOPT_CONV_FROM_UTF8_FUNCTION

options. I create a default callback function which in turn
invokes a function selected by the client code.

  When the language raises an exception, I catch it in the
default callback and I need to return an error code; an
unexpected exception (like a type error) cannot be
automatically translated into a meaningful "CURLcode" value,
so I would need a generic error code meaning "things gone
bad", but I find no such value in the "enum CURLcode"
definition. Right now I have selected "CURLE_OBSOLETE10"
and documented it in my package; is there a better option?

TIA

P.S. The documentation says CURLOPT_TFTPBLKSIZE, but it is
CURLOPT_TFTP_BLKSIZE.
<http://curl.haxx.se/libcurl/c/curl_easy_setopt.html>

-- 
Marco Maggi
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