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).

       (Windows,  iOS  and  Mac OS X) This option is ignored by Secure Transport and Schannel SSL
       backends because they expect 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),