NAME

       CURLOPT_PROXY_CAPATH - directory holding HTTPS proxy CA certificates

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_CAPATH, char *capath);

DESCRIPTION

       Pass  a  char  *  to  a  null-terminated  string  naming  a  directory holding multiple CA
       certificates to verify the HTTPS proxy with. If libcurl  is  built  against  OpenSSL,  the
       certificate  directory  must  be  prepared  using the openssl c_rehash utility. This makes
       sense only when CURLOPT_PROXY_SSL_VERIFYPEER(3) is enabled (which it is by default).

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

       The default value for this can be figured out with CURLINFO_CAPATH(3).

DEFAULT

       NULL

PROTOCOLS

       Everything used over an HTTPS proxy

EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
         curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
         /* using an HTTPS proxy */
         curl_easy_setopt(curl, CURLOPT_PROXY, "https://localhost:443");
         curl_easy_setopt(curl, CURLOPT_PROXY_CAPATH, "/etc/cert-dir");
         ret = curl_easy_perform(curl);
         curl_easy_cleanup(curl);
       }

AVAILABILITY

       Added in 7.52.0

       This option is supported by the OpenSSL, GnuTLS, and mbedTLS (since 7.56.0) backends.  The
       NSS backend provides the option only for backward compatibility.

RETURN VALUE

       CURLE_OK if supported; or an error such as:

       CURLE_NOT_BUILT_IN - Not supported by the SSL backend

       CURLE_UNKNOWN_OPTION

       CURLE_OUT_OF_MEMORY

SEE ALSO

       CURLOPT_PROXY_CAINFO(3),        CURLOPT_CAINFO(3),        CURLOPT_PROXY_SSL_VERIFYHOST(3),
       CURLOPT_STDERR(3), CURLOPT_DEBUGFUNCTION(3),