CURLINFO_PROXY_SSL_VERIFYRESULT(3) Library Functions Manual CURLINFO_PROXY_SSL_VERIFYRESULT(3)

CURLINFO_PROXY_SSL_VERIFYRESULT - get the result of the proxy certificate verification

#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_PROXY_SSL_VERIFYRESULT,
                           long *result);

Pass a pointer to a long to receive the result of the certificate verification that was requested (using the CURLOPT_PROXY_SSL_VERIFYPEER(3) option. This is only used for HTTPS proxies.

All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.

This option works only with the following TLS backends: GnuTLS and OpenSSL

int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    CURLcode res;
    long verifyresult;
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
    curl_easy_setopt(curl, CURLOPT_PROXY, "https://proxy:443");
    res = curl_easy_perform(curl);
    if(res)
      printf("error: %s\n", curl_easy_strerror(res));
    curl_easy_getinfo(curl, CURLINFO_PROXY_SSL_VERIFYRESULT, &verifyresult);
    printf("The peer verification said %s\n", verifyresult?
           "fine" : "bad");
    curl_easy_cleanup(curl);
  }
}

Added in 7.52.0

Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

CURLINFO_SSL_VERIFYRESULT(3), curl_easy_getinfo(3), curl_easy_setopt(3)

April 26 2024 libcurl