<title>CURLOPT_SSL_ENABLE_NPN man page</title>
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<p class="level0"><a name="NAME"></a><h2 class="nroffsh">NAME</h2>
<p class="level0">CURLOPT_SSL_ENABLE_NPN - enable NPN <a name="SYNOPSIS"></a><h2 class="nroffsh">SYNOPSIS</h2>
-<p class="level0">#include <curl/curl.h>
+<p class="level0">#include <curl/curl.h>
<p class="level0">CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSL_ENABLE_NPN, long npn); <a name="DESCRIPTION"></a><h2 class="nroffsh">DESCRIPTION</h2>
<p class="level0">Pass a long as parameter, 0 or 1 where 1 is for enable and 0 for disable. This option enables/disables NPN in the SSL handshake (if the SSL backend libcurl is built to use supports it), which can be used to negotiate http2. <a name="DEFAULT"></a><h2 class="nroffsh">DEFAULT</h2>
<p class="level0">1, enabled <a name="PROTOCOLS"></a><h2 class="nroffsh">PROTOCOLS</h2>