NAME

       CURLOPT_PROXY_SSLCERT - HTTPS 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 filename 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 CURLOPT_PROXY_SSLCERTTYPE(3).

       With 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
       CURLOPT_PROXY_SSLKEY(3).

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

DEFAULT

       NULL

PROTOCOLS

       This functionality affects all TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.

       This  option  works  only  with  the following TLS backends: GnuTLS, OpenSSL, Schannel, Secure Transport,
       mbedTLS and wolfSSL

EXAMPLE

       int main(void)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           CURLcode res;
           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");
           res = curl_easy_perform(curl);
           curl_easy_cleanup(curl);
         }
       }

AVAILABILITY

       Added in curl 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                                            2024-12-11                           CURLOPT_PROXY_SSLCERT(3)