curl/docs/libcurl/opts/CURLOPT_SSL_FALSESTART.3
Daniel Stenberg 12a2ed970f
opt-docs: verify man page sections + order
In every libcurl option man page there are now 8 mandatory sections that
must use the right name in the correct order and test 1173 verifies
this. Only 14 man pages needed adjustments.

The sections and the order is as follows:

 - NAME
 - SYNOPSIS
 - DESCRIPTION
 - PROTOCOLS
 - EXAMPLE
 - AVAILABILITY
 - RETURN VALUE
 - SEE ALSO

Reviewed-by: Daniel Gustafsson
Closes #7656
2021-09-04 11:27:46 +02:00

58 lines
2.3 KiB
Groff

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.TH CURLOPT_SSL_FALSESTART 3 "14 Feb 2015" "libcurl 7.41.0" "curl_easy_setopt options"
.SH NAME
CURLOPT_SSL_FALSESTART \- enable TLS false start
.SH SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSL_FALSESTART, long enable);
.SH DESCRIPTION
Pass a long as parameter set to 1L to enable or 0 to disable.
This option determines whether libcurl should use false start during the TLS
handshake. False start is a mode where a TLS client will start sending
application data before verifying the server's Finished message, thus saving a
round trip when performing a full handshake.
.SH DEFAULT
0
.SH PROTOCOLS
All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.
.SH EXAMPLE
.nf
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
curl_easy_setopt(curl, CURLOPT_SSL_FALSESTART, 1L);
curl_easy_perform(curl);
}
.fi
.SH AVAILABILITY
Added in 7.42.0. This option is currently only supported by the NSS and
Secure Transport (on iOS 7.0 or later, or OS X 10.9 or later) TLS backends.
.SH RETURN VALUE
Returns CURLE_OK if false start is supported by the SSL backend, otherwise
returns CURLE_NOT_BUILT_IN.
.SH SEE ALSO
.BR CURLOPT_TCP_FASTOPEN "(3), "