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

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

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