NAME¶
CURLOPT_SSL_ENABLE_ALPN - enable ALPN
SYNOPSIS¶
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSL_ENABLE_ALPN,
long npn);
DESCRIPTION¶
Pass a long as parameter, 0 or 1 where 1 is for enable and 0 for disable. This
option enables/disables ALPN in the SSL handshake (if the SSL backend libcurl
is built to use supports it), which can be used to negotiate http2.
AVAILABILITY¶
Added in 7.36.0
RETURN VALUE¶
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
