CURLOPT_PROXY_SSLCERT(3)   curl_easy_setopt options   CURLOPT_PROXY_SSLCERT(3)

NAME
       CURLOPT_PROXY_SSLCERT - set SSL proxy client certificate

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSLCERT, char
       *cert);

DESCRIPTION
       This option is for connecting to an HTTPS proxy, not an HTTPS server.

       Pass a pointer to a null-terminated string as parameter. The string
       should be the file name of your client certificate used to connect to
       the HTTPS proxy.  The default format is "P12" on Secure Transport and
       "PEM" on other engines, and can be changed with
       _PROXY_SSLCERTTYPE&section=3">CURLOPT_PROXY_SSLCERTTYPE(3).

       With NSS or Secure Transport, this can also be the nickname of the
       certificate you wish to authenticate with as it is named in the
       security database. If you want to use a file from the current
       directory, please precede it with "./" prefix, in order to avoid
       confusion with a nickname.

       When using a client certificate, you most likely also need to provide a
       private key with _PROXY_SSLKEY&section=3">CURLOPT_PROXY_SSLKEY(3).

       The application does not have to keep the string around after setting
       this option.

DEFAULT
       NULL

PROTOCOLS
       Used with HTTPS proxy

EXAMPLE
       CURL *curl = curl_easy_init();
       if(curl) {
         curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
         curl_easy_setopt(curl, CURLOPT_PROXY, "https://proxy");
         curl_easy_setopt(curl, CURLOPT_PROXY_SSLCERT, "client.pem");
         curl_easy_setopt(curl, CURLOPT_PROXY_SSLKEY, "key.pem");
         curl_easy_setopt(curl, CURLOPT_PROXY_KEYPASSWD, "s3cret");
         ret = curl_easy_perform(curl);
         curl_easy_cleanup(curl);
       }

AVAILABILITY
       Added in 7.52.0

RETURN VALUE
       Returns CURLE_OK if TLS enabled, CURLE_UNKNOWN_OPTION if not, or
       CURLE_OUT_OF_MEMORY if there was insufficient heap space.

SEE ALSO
       CURLOPT_PROXY_SSLCERTTYPE(3), CURLOPT_PROXY_SSLKEY(3),
       CURLOPT_SSLCERT(3),

libcurl 7.77.0                 November 4, 2020       CURLOPT_PROXY_SSLCERT(3)