NAME

       CURLOPT_PROXY_SSLKEY - private keyfile for HTTPS 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
       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),