46 lines
1.3 KiB
Groff
46 lines
1.3 KiB
Groff
|
.\" generated by cd2nroff 0.1 from CURLOPT_SSL_FALSESTART.md
|
||
|
|
.TH CURLOPT_SSL_FALSESTART 3 "2025-07-07" libcurl
|
||
|
|
.SH NAME
|
||
|
|
CURLOPT_SSL_FALSESTART \- TLS false start
|
||
|
|
.SH SYNOPSIS
|
||
|
|
.nf
|
||
|
|
#include <curl/curl.h>
|
||
|
|
|
||
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSL_FALSESTART, long enable);
|
||
|
|
.fi
|
||
|
|
.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 starts sending application
|
||
|
|
data before verifying the server\(aqs Finished message, thus saving a round trip
|
||
|
|
when performing a full handshake.
|
||
|
|
.SH DEFAULT
|
||
|
|
0
|
||
|
|
.SH PROTOCOLS
|
||
|
|
This functionality affects all TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.
|
||
|
|
|
||
|
|
This option works only with the following TLS backends:
|
||
|
|
Secure Transport
|
||
|
|
.SH EXAMPLE
|
||
|
|
.nf
|
||
|
|
int main(void)
|
||
|
|
{
|
||
|
|
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 curl 7.42.0
|
||
|
|
.SH RETURN VALUE
|
||
|
|
\fIcurl_easy_setopt(3)\fP returns a CURLcode indicating success or error.
|
||
|
|
|
||
|
|
CURLE_OK (0) means everything was OK, non\-zero means an error occurred, see
|
||
|
|
\fIlibcurl\-errors(3)\fP.
|
||
|
|
.SH SEE ALSO
|
||
|
|
.BR CURLOPT_TCP_FASTOPEN (3)
|