CURLOPT_PROXY_SSLKEY(3)    curl_easy_setopt options    CURLOPT_PROXY_SSLKEY(3)

NAME
       CURLOPT_PROXY_SSLKEY - specify private keyfile for TLS and SSL proxy
       client cert

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSLKEY, char
       *keyfile);

DESCRIPTION
       Pass a pointer to a null-terminated string as parameter. The string
       should be the file name of your private key used for connecting to the
       HTTPS proxy. The default format is "PEM" and can be changed with
       _PROXY_SSLKEYTYPE&section=3">CURLOPT_PROXY_SSLKEYTYPE(3).

       (iOS and Mac OS X only) This option is ignored if curl was built
       against Secure Transport. Secure Transport expects the private key to
       be already present in the keychain or PKCS#12 file containing the
       certificate.

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

DEFAULT
       NULL

PROTOCOLS
       All

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

       If built TLS enabled.

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

SEE ALSO
       CURLOPT_PROXY_SSLKEYTYPE(3), CURLOPT_PROXY_SSLCERT(3),
       CURLOPT_SSLKEYTYPE(3), CURLOPT_SSLCERT(3),

libcurl 7.77.0                 November 4, 2020        CURLOPT_PROXY_SSLKEY(3)