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Re: Sending 16K+packets fails on windows platform with CURLE_SEND_ERROR.

From: Daniel Stenberg <>
Date: Wed, 2 Jul 2014 23:38:30 +0200 (CEST)

On Tue, 1 Jul 2014, Sundar Anantharaman wrote:

> We are hitting issues while using the curl_easy_send API on windows
> platform. It return a CURLE_SEND_ERROR when we try to send a packet that is
> >16K in size.

Yes, we have a limitation there when sending TLS using the schannel backend.

> is there a suggested workaround.

Send your data in multiple calls?

> Also why is CURL not doing the chunking of packets or returning a
> CURLE_AGAIN after sending the 16K.

Because it hasn't been an issue to anyone before and nobody has provided code
for such a solution. Feel free to help us improve this! We'd be grateful.

List admin:
Received on 2014-07-02